The document summarizes key points about invasive fungal infections:
1) It reviews different types of invasive fungi like Candida and Aspergillus species and how their local epidemiology is changing.
2) It discusses risk factors for invasive fungal infections in high risk groups like ICU patients, transplant recipients, and those taking biologics.
3) It describes the clinical manifestations of common fungal infections including candidemia, hepatosplenic candidiasis, aspergillosis, and their associated mortality rates.
The document discusses invasive fungal infections in critically ill patients. It notes that these infections have increased due to factors like immunosuppression from medical therapies. Common fungal pathogens include Candida species and Aspergillus. Diagnosis can be challenging as cultures often have low sensitivity. Biomarkers like galactomannan and beta-D-glucan can help but have limitations. Early treatment with antifungals is important to reduce mortality, though choice of agent depends on individual patient and infecting organism factors. Fungal infections should be considered in critically ill patients with persistent fever despite antibiotics.
Yeasts such as Candida are common causes of bloodstream infections in ICU patients. Candida infections in the ICU have a high mortality rate of 15-25% and are the 4th most common cause of hospital-acquired bloodstream infections. Diagnosis can be challenging due to low sensitivity of blood cultures, but newer tests such as PCR, antigen detection assays, and MALDI-TOF mass spectrometry provide more rapid detection of Candida compared to standard culture methods. The presence of risk factors such as abdominal surgery, central venous catheters, antibiotics use, and prolonged ICU stay increase the risk of developing Candida bloodstream infections in critically ill patients.
This document discusses Candida infections in the ICU, including epidemiology, risk factors, pathogenesis, diagnosis, and treatment. Some key points:
- Candida species are the most common fungal pathogens in hospitals and ICUs, responsible for 17% of healthcare-associated infections. Non-albicans Candida species now account for around 50% of infections.
- Risk factors for invasive Candida infections include prolonged ICU stay, broad-spectrum antibiotic use, surgery, and underlying conditions like diabetes that impair immunity. Heavy Candida colonization is an independent risk factor.
- Diagnosis is challenging as symptoms mimic bacterial infections. Culture-based methods are slow. Biomarkers like beta-D-
This document discusses disseminated fungal infections, including candidiasis. It notes that fungal infections in hospitals have increased dramatically due to rising immunosuppressed populations. Candida species are the most common cause. Risk factors include ICU stay, immunosuppression, and use of broad-spectrum antibiotics and catheters. Diagnosis relies on blood and tissue cultures but has low sensitivity. Early antifungal treatment improves outcomes, and options include fluconazole, amphotericin B, and echinocandins. Prevention strategies focus on hand hygiene and reducing unnecessary fluconazole use.
Fungal infections in hematology patients: advances in prophylaxis and treatmentspa718
This document summarizes advances in prophylaxis and treatment of fungal infections in hematology patients. It discusses risk stratification approaches and various randomized controlled trials comparing different antifungal agents for prophylaxis. Trials showed posaconazole, micafungin, and voriconazole reduced incidence of invasive fungal infections compared to fluconazole or itraconazole in high-risk patients. The document also reviews empirical antifungal therapy approaches and measures of success in clinical trials comparing liposomal amphotericin B, voriconazole, and caspofungin.
This lecture discusses principles of selecting antifungal agents in the intensive care unit in the treatment of suspected candidasis or confirmed fungemia.
This clinical practice guideline summarizes recommendations for the management of candidiasis. It covers treatment for candidemia in both non-neutropenic and neutropenic patients, including the use of echinocandins, fluconazole, voriconazole, and liposomal amphotericin B. It also addresses empirical treatment, prophylaxis, and treatment duration for intra-abdominal and disseminated candidiasis. The guideline recommends early catheter removal for candidemia and discusses treatment of candiduria, osteomyelitis, septic arthritis, and other localized candidiasis infections.
Antifungal Strategies in the Intensive Care UnitsYazan Kherallah
Discuss the different anti-fungal treatment strategies for suspected systemic candidiasis in the intensive care units: prophylaxis, preemptive, empiric and definitive.
The document discusses invasive fungal infections in critically ill patients. It notes that these infections have increased due to factors like immunosuppression from medical therapies. Common fungal pathogens include Candida species and Aspergillus. Diagnosis can be challenging as cultures often have low sensitivity. Biomarkers like galactomannan and beta-D-glucan can help but have limitations. Early treatment with antifungals is important to reduce mortality, though choice of agent depends on individual patient and infecting organism factors. Fungal infections should be considered in critically ill patients with persistent fever despite antibiotics.
Yeasts such as Candida are common causes of bloodstream infections in ICU patients. Candida infections in the ICU have a high mortality rate of 15-25% and are the 4th most common cause of hospital-acquired bloodstream infections. Diagnosis can be challenging due to low sensitivity of blood cultures, but newer tests such as PCR, antigen detection assays, and MALDI-TOF mass spectrometry provide more rapid detection of Candida compared to standard culture methods. The presence of risk factors such as abdominal surgery, central venous catheters, antibiotics use, and prolonged ICU stay increase the risk of developing Candida bloodstream infections in critically ill patients.
This document discusses Candida infections in the ICU, including epidemiology, risk factors, pathogenesis, diagnosis, and treatment. Some key points:
- Candida species are the most common fungal pathogens in hospitals and ICUs, responsible for 17% of healthcare-associated infections. Non-albicans Candida species now account for around 50% of infections.
- Risk factors for invasive Candida infections include prolonged ICU stay, broad-spectrum antibiotic use, surgery, and underlying conditions like diabetes that impair immunity. Heavy Candida colonization is an independent risk factor.
- Diagnosis is challenging as symptoms mimic bacterial infections. Culture-based methods are slow. Biomarkers like beta-D-
This document discusses disseminated fungal infections, including candidiasis. It notes that fungal infections in hospitals have increased dramatically due to rising immunosuppressed populations. Candida species are the most common cause. Risk factors include ICU stay, immunosuppression, and use of broad-spectrum antibiotics and catheters. Diagnosis relies on blood and tissue cultures but has low sensitivity. Early antifungal treatment improves outcomes, and options include fluconazole, amphotericin B, and echinocandins. Prevention strategies focus on hand hygiene and reducing unnecessary fluconazole use.
Fungal infections in hematology patients: advances in prophylaxis and treatmentspa718
This document summarizes advances in prophylaxis and treatment of fungal infections in hematology patients. It discusses risk stratification approaches and various randomized controlled trials comparing different antifungal agents for prophylaxis. Trials showed posaconazole, micafungin, and voriconazole reduced incidence of invasive fungal infections compared to fluconazole or itraconazole in high-risk patients. The document also reviews empirical antifungal therapy approaches and measures of success in clinical trials comparing liposomal amphotericin B, voriconazole, and caspofungin.
This lecture discusses principles of selecting antifungal agents in the intensive care unit in the treatment of suspected candidasis or confirmed fungemia.
This clinical practice guideline summarizes recommendations for the management of candidiasis. It covers treatment for candidemia in both non-neutropenic and neutropenic patients, including the use of echinocandins, fluconazole, voriconazole, and liposomal amphotericin B. It also addresses empirical treatment, prophylaxis, and treatment duration for intra-abdominal and disseminated candidiasis. The guideline recommends early catheter removal for candidemia and discusses treatment of candiduria, osteomyelitis, septic arthritis, and other localized candidiasis infections.
Antifungal Strategies in the Intensive Care UnitsYazan Kherallah
Discuss the different anti-fungal treatment strategies for suspected systemic candidiasis in the intensive care units: prophylaxis, preemptive, empiric and definitive.
Fungal infections caused by Candida and Aspergillus species are increasingly common in critically ill patients. These infections are associated with high morbidity and mortality. Clinicians must have a high index of suspicion given the challenges of diagnosis in ICU patients. Treatment is complicated by potential adverse drug reactions and interactions.
This document discusses antifungal drugs used to treat invasive fungal infections in the intensive care unit (ICU). It covers the epidemiology of fungal infections, the mechanisms and targets of different antifungal drug classes, resistance mechanisms, side effects and drug interactions. It reviews the evidence for different antifungal therapies and discusses expert opinions on the use of echinocandins to treat invasive candidiasis in ICU patients.
This study examined the prevalence of candidaemia among immunosuppressed patients with persistent fever at University College Hospital in Ibadan, Nigeria. The researchers found a prevalence of candidaemia was 5.2% among the 230 patients studied. The most common Candida species isolated were C. parapsilosis, C. tropicalis, and C. albicans. Risk factors associated with increased candidaemia risk included isolation of Candida from blood, intravenous cut down sites, mucositis, and diarrhea. Crude and attributable mortality rates for candidaemia were 91.7% and 50% respectively, highlighting the need for prompt antifungal treatment.
This document summarizes guidelines for the evaluation and management of fever in neutropenic patients. It discusses the initial evaluation, appropriate antimicrobial therapy including both combination regimens and monotherapy options. It also addresses criteria for adding antifungal therapy if fever persists after initial treatment and antibiotics.
This document provides guidelines for the treatment of febrile neutropenia, including evaluating patient risk, appropriate diagnostic testing, initial antibiotic therapy targeting common bacterial pathogens, treatment duration based on etiology and clinical response, adding coverage for gram-positive organisms if needed, use of antifungal and antiviral drugs, and role of colony stimulating factors. It also addresses catheter management and complications.
This document discusses infections in immune-compromised hosts, including:
1) General principles of infections in this population, including potential etiologies, importance of early diagnosis, and challenges of treatment.
2) Specific sections covering infections in hematopoietic bone marrow transplant recipients, solid organ transplant recipients, HIV/AIDS patients, chemotherapy-induced neutropenic patients, and those receiving immunosuppressive therapy.
3) Guidelines for evaluation, diagnosis, and management of infections in these high-risk groups. Prevention through prophylactic antibiotics, antivirals and antifungals is a major focus.
This document discusses the antifungal drug micafungin. It inhibits fungal cell wall synthesis and has activity against Candida and Aspergillus species. The document reviews micafungin's approved uses, dosing, safety profile, and a study evaluating its use at a hospital which found it was being used appropriately in most patients according to predetermined criteria for antifungal therapy. The study recommends continued restrictions on prescribing and improved documentation of infections and drug choice.
This document discusses infections in immunocompromised patients. It begins by describing the various microbes that can cause infection, including bacteria, parasites, fungi and viruses. It then discusses the different types of underlying immune defects that determine infection risk, such as humoral versus cell-mediated defects. The document outlines various factors that influence the risk of infection, including the level of immunosuppression, transplant organ, graft-versus-host disease, exposures, and immune-modulating medications. It presents several case examples of infections in immunocompromised patients.
Clinical Mycology U F Medical Students 12 05 07 Final2raj kumar
The document discusses several key points about fungal infections:
1) Fungi are common in nature but relatively few cause disease in humans, usually superficial infections or allergies. Major disease-causing fungi include Candida, Aspergillus, and Zygomycetes.
2) Risk factors for invasive fungal infections include surgery, immunosuppression, and broad-spectrum antibiotic use. Candida infections are the most common cause of healthcare-associated bloodstream infections.
3) Early diagnosis and treatment of invasive fungal infections is important, as mortality can be high. Removing intravascular catheters and restoring immune function are also important aspects of management.
This document summarizes cryptococcal meningitis, a fungal infection of the membranes surrounding the brain and spinal cord that is common in people with HIV/AIDS. It describes the causative organism, Cryptococcus neoformans, and outlines the clinical presentation, diagnosis, and treatment of cryptococcal meningitis. The treatment involves amphotericin B and flucytosine initially, followed by long-term fluconazole therapy and antiretroviral treatment once the patient's CD4 count recovers. Prevention strategies include screening high-risk HIV patients and treating asymptomatic cryptococcal infections before starting antiretroviral therapy.
1) HBV is a partially double-stranded DNA virus that was discovered in the 1960s and can cause both acute and chronic hepatitis B infections.
2) It is transmitted through bodily fluids and can be diagnosed through serological and molecular testing for antigens and antibodies.
3) Vaccination provides effective immunization against HBV infection and treatment options for chronic infection include immunomodulators and nucleoside/nucleotide analogs.
Management of Viral Hepatitis in Immunocompromised PatientsMohammed A Suwaid
The patient has type 2 diabetes and a history of brain tumor surgery and radiation therapy. He now presents with fatigue, joint pains, abdominal discomfort, and jaundice. Tests confirm acute hepatitis B infection. Treatment with antiviral medication is generally not needed for acute hepatitis B in immunocompetent patients, as 95-99% recover spontaneously. However, in immunocompromised individuals like this patient, antiviral therapy with lamivudine may be recommended to prevent potential complications or fulminant hepatitis given his underlying conditions and treatments.
Management of neutropenic fever in cancer patients Prof Hamdy ZawamMuhammad El Hady
This document discusses the management of neutropenic fever in cancer patients. It covers factors that predispose patients to infection, defines neutropenic fever, and outlines risk stratification methods. For workup, it recommends cultures, imaging, and labs. For treatment, it suggests empiric antibiotic therapy based on risk level, with modifications for specific infections. Initial empiric regimens for high-risk patients include broad-spectrum IV antibiotics like ceftazidime, cefepime, imipenem, or meropenem. It provides guidance on adding anti-gram positive or modifying treatment.
This document discusses fungal pulmonary infections. It begins by noting that fungi cause a small portion of community-acquired and hospital-acquired pneumonia cases. It then focuses on invasive fungal infections, noting that candidiasis is the fourth most common nosocomial bloodstream infection in the US. Mortality rates for invasive candidiasis and aspergillosis infections are also provided. The document provides information on diagnosing and treating various fungal infections like candidiasis, aspergillosis, and Pneumocystis jirovecii pneumonia. It discusses antifungal drug classes, specific drugs, and treatment guidelines.
1. Specific tests for diagnosing HIV infection include detecting viral antigens like p24, isolating the live virus, detecting viral nucleic acids through PCR, and detecting antibodies through ELISA and Western blot tests.
2. ELISA and rapid tests are used as initial screening tests to detect antibodies, while Western blot is a supplemental test used to confirm positive ELISA results.
3. In addition to specific tests, nonspecific tests like complete blood counts can provide clues about HIV infection by detecting signs of immune deficiency like low CD4+ T cell and platelet counts.
This document discusses an approach to evaluating and diagnosing neutropenia. It defines neutropenia and related terms. Common causes of neutropenia include medications, infections, nutritional deficiencies, hematologic malignancies, and autoimmune or rheumatologic disorders. Evaluation involves obtaining a thorough history, physical exam, complete blood count with differential, and additional testing depending on exam findings, such as vitamin levels, liver and renal function tests, and infectious disease screening. The goal is to determine the etiology and guide management.
This document discusses febrile neutropenia in pediatric malignancies. It begins with definitions of fever and neutropenia. It then describes the pathophysiology, including how innate immunity, adaptive immunity, and the body's physiological response to infection are compromised. The main etiologies of infection in these patients are gram-positive and gram-negative bacteria. Risk factors, assessment, evaluation and management are also covered. Empiric broad-spectrum antibiotics are recommended for treatment, with consideration of empiric antifungals for persistent fever.
Disseminated fungal infections occur when fungi spread through the bloodstream and infect organs beyond the original site of infection. Risk factors include immunosuppression, use of broad-spectrum antibiotics, and indwelling medical devices. Candida species are a leading cause, and symptoms can range from fever to organ failure. Blood cultures have low sensitivity, so empiric antifungal therapy should start promptly for high-risk patients based on risk factors rather than waiting for positive cultures. Echinocandins, polyenes like amphotericin B, and azoles are major antifungal drug classes used to treat disseminated fungal infections.
1) Premature infants are at high risk of invasive fungal infections like candidiasis due to their relatively underdeveloped immune systems. Candida species are the most common cause, with C. albicans causing most neonatal infections.
2) Fungal colonization is common in VLBW infants and increases their risk of invasive infection. The GI tract is usually the initial site of colonization, which can progress to candidemia in 7-24% of cases.
3) Invasive candidiasis accounts for up to 12% of late-onset neonatal sepsis and carries a high mortality rate of 30%. Risk factors include low birth weight, broad spectrum antibiotic use, and central venous catheters
Fungal infections caused by Candida and Aspergillus species are increasingly common in critically ill patients. These infections are associated with high morbidity and mortality. Clinicians must have a high index of suspicion given the challenges of diagnosis in ICU patients. Treatment is complicated by potential adverse drug reactions and interactions.
This document discusses antifungal drugs used to treat invasive fungal infections in the intensive care unit (ICU). It covers the epidemiology of fungal infections, the mechanisms and targets of different antifungal drug classes, resistance mechanisms, side effects and drug interactions. It reviews the evidence for different antifungal therapies and discusses expert opinions on the use of echinocandins to treat invasive candidiasis in ICU patients.
This study examined the prevalence of candidaemia among immunosuppressed patients with persistent fever at University College Hospital in Ibadan, Nigeria. The researchers found a prevalence of candidaemia was 5.2% among the 230 patients studied. The most common Candida species isolated were C. parapsilosis, C. tropicalis, and C. albicans. Risk factors associated with increased candidaemia risk included isolation of Candida from blood, intravenous cut down sites, mucositis, and diarrhea. Crude and attributable mortality rates for candidaemia were 91.7% and 50% respectively, highlighting the need for prompt antifungal treatment.
This document summarizes guidelines for the evaluation and management of fever in neutropenic patients. It discusses the initial evaluation, appropriate antimicrobial therapy including both combination regimens and monotherapy options. It also addresses criteria for adding antifungal therapy if fever persists after initial treatment and antibiotics.
This document provides guidelines for the treatment of febrile neutropenia, including evaluating patient risk, appropriate diagnostic testing, initial antibiotic therapy targeting common bacterial pathogens, treatment duration based on etiology and clinical response, adding coverage for gram-positive organisms if needed, use of antifungal and antiviral drugs, and role of colony stimulating factors. It also addresses catheter management and complications.
This document discusses infections in immune-compromised hosts, including:
1) General principles of infections in this population, including potential etiologies, importance of early diagnosis, and challenges of treatment.
2) Specific sections covering infections in hematopoietic bone marrow transplant recipients, solid organ transplant recipients, HIV/AIDS patients, chemotherapy-induced neutropenic patients, and those receiving immunosuppressive therapy.
3) Guidelines for evaluation, diagnosis, and management of infections in these high-risk groups. Prevention through prophylactic antibiotics, antivirals and antifungals is a major focus.
This document discusses the antifungal drug micafungin. It inhibits fungal cell wall synthesis and has activity against Candida and Aspergillus species. The document reviews micafungin's approved uses, dosing, safety profile, and a study evaluating its use at a hospital which found it was being used appropriately in most patients according to predetermined criteria for antifungal therapy. The study recommends continued restrictions on prescribing and improved documentation of infections and drug choice.
This document discusses infections in immunocompromised patients. It begins by describing the various microbes that can cause infection, including bacteria, parasites, fungi and viruses. It then discusses the different types of underlying immune defects that determine infection risk, such as humoral versus cell-mediated defects. The document outlines various factors that influence the risk of infection, including the level of immunosuppression, transplant organ, graft-versus-host disease, exposures, and immune-modulating medications. It presents several case examples of infections in immunocompromised patients.
Clinical Mycology U F Medical Students 12 05 07 Final2raj kumar
The document discusses several key points about fungal infections:
1) Fungi are common in nature but relatively few cause disease in humans, usually superficial infections or allergies. Major disease-causing fungi include Candida, Aspergillus, and Zygomycetes.
2) Risk factors for invasive fungal infections include surgery, immunosuppression, and broad-spectrum antibiotic use. Candida infections are the most common cause of healthcare-associated bloodstream infections.
3) Early diagnosis and treatment of invasive fungal infections is important, as mortality can be high. Removing intravascular catheters and restoring immune function are also important aspects of management.
This document summarizes cryptococcal meningitis, a fungal infection of the membranes surrounding the brain and spinal cord that is common in people with HIV/AIDS. It describes the causative organism, Cryptococcus neoformans, and outlines the clinical presentation, diagnosis, and treatment of cryptococcal meningitis. The treatment involves amphotericin B and flucytosine initially, followed by long-term fluconazole therapy and antiretroviral treatment once the patient's CD4 count recovers. Prevention strategies include screening high-risk HIV patients and treating asymptomatic cryptococcal infections before starting antiretroviral therapy.
1) HBV is a partially double-stranded DNA virus that was discovered in the 1960s and can cause both acute and chronic hepatitis B infections.
2) It is transmitted through bodily fluids and can be diagnosed through serological and molecular testing for antigens and antibodies.
3) Vaccination provides effective immunization against HBV infection and treatment options for chronic infection include immunomodulators and nucleoside/nucleotide analogs.
Management of Viral Hepatitis in Immunocompromised PatientsMohammed A Suwaid
The patient has type 2 diabetes and a history of brain tumor surgery and radiation therapy. He now presents with fatigue, joint pains, abdominal discomfort, and jaundice. Tests confirm acute hepatitis B infection. Treatment with antiviral medication is generally not needed for acute hepatitis B in immunocompetent patients, as 95-99% recover spontaneously. However, in immunocompromised individuals like this patient, antiviral therapy with lamivudine may be recommended to prevent potential complications or fulminant hepatitis given his underlying conditions and treatments.
Management of neutropenic fever in cancer patients Prof Hamdy ZawamMuhammad El Hady
This document discusses the management of neutropenic fever in cancer patients. It covers factors that predispose patients to infection, defines neutropenic fever, and outlines risk stratification methods. For workup, it recommends cultures, imaging, and labs. For treatment, it suggests empiric antibiotic therapy based on risk level, with modifications for specific infections. Initial empiric regimens for high-risk patients include broad-spectrum IV antibiotics like ceftazidime, cefepime, imipenem, or meropenem. It provides guidance on adding anti-gram positive or modifying treatment.
This document discusses fungal pulmonary infections. It begins by noting that fungi cause a small portion of community-acquired and hospital-acquired pneumonia cases. It then focuses on invasive fungal infections, noting that candidiasis is the fourth most common nosocomial bloodstream infection in the US. Mortality rates for invasive candidiasis and aspergillosis infections are also provided. The document provides information on diagnosing and treating various fungal infections like candidiasis, aspergillosis, and Pneumocystis jirovecii pneumonia. It discusses antifungal drug classes, specific drugs, and treatment guidelines.
1. Specific tests for diagnosing HIV infection include detecting viral antigens like p24, isolating the live virus, detecting viral nucleic acids through PCR, and detecting antibodies through ELISA and Western blot tests.
2. ELISA and rapid tests are used as initial screening tests to detect antibodies, while Western blot is a supplemental test used to confirm positive ELISA results.
3. In addition to specific tests, nonspecific tests like complete blood counts can provide clues about HIV infection by detecting signs of immune deficiency like low CD4+ T cell and platelet counts.
This document discusses an approach to evaluating and diagnosing neutropenia. It defines neutropenia and related terms. Common causes of neutropenia include medications, infections, nutritional deficiencies, hematologic malignancies, and autoimmune or rheumatologic disorders. Evaluation involves obtaining a thorough history, physical exam, complete blood count with differential, and additional testing depending on exam findings, such as vitamin levels, liver and renal function tests, and infectious disease screening. The goal is to determine the etiology and guide management.
This document discusses febrile neutropenia in pediatric malignancies. It begins with definitions of fever and neutropenia. It then describes the pathophysiology, including how innate immunity, adaptive immunity, and the body's physiological response to infection are compromised. The main etiologies of infection in these patients are gram-positive and gram-negative bacteria. Risk factors, assessment, evaluation and management are also covered. Empiric broad-spectrum antibiotics are recommended for treatment, with consideration of empiric antifungals for persistent fever.
Disseminated fungal infections occur when fungi spread through the bloodstream and infect organs beyond the original site of infection. Risk factors include immunosuppression, use of broad-spectrum antibiotics, and indwelling medical devices. Candida species are a leading cause, and symptoms can range from fever to organ failure. Blood cultures have low sensitivity, so empiric antifungal therapy should start promptly for high-risk patients based on risk factors rather than waiting for positive cultures. Echinocandins, polyenes like amphotericin B, and azoles are major antifungal drug classes used to treat disseminated fungal infections.
1) Premature infants are at high risk of invasive fungal infections like candidiasis due to their relatively underdeveloped immune systems. Candida species are the most common cause, with C. albicans causing most neonatal infections.
2) Fungal colonization is common in VLBW infants and increases their risk of invasive infection. The GI tract is usually the initial site of colonization, which can progress to candidemia in 7-24% of cases.
3) Invasive candidiasis accounts for up to 12% of late-onset neonatal sepsis and carries a high mortality rate of 30%. Risk factors include low birth weight, broad spectrum antibiotic use, and central venous catheters
1) The Ironton Rail Trail follows the path of an old railroad line that transported iron ore, coal, and limestone. It now serves as a hiking and biking trail that preserves local history.
2) The document discusses several invasive species found along the trail, including Crown Vetch, Japanese Beetles, Orange Day Lily, and Tuberous Sweet Pea, that threaten native plants and wildlife.
3) These invasive species were introduced from other parts of the world and spread aggressively, displacing native species and reducing biodiversity in the natural areas along the trail.
1. Aspergillosis is a group of diseases caused by the Aspergillus fungus. Some asthma patients are sensitized to the fungi Aspergillus.
2. Aspergillus fumigatus is one of the most common Aspergillus species that causes disease in immunocompromised individuals and people with leukemia. It is typically found in soil and decaying organic matter.
3. Aspergillosis is classified as invasive, chronic, or allergic depending on symptoms and disease progression. Invasive aspergillosis can disseminate and involve multiple organs while allergic aspergillosis includes conditions like allergic bronchopulmonary aspergillosis
Invasive species are introduced plants, animals, and microorganisms that negatively impact native ecosystems by outcompeting local species for resources and preying upon them without natural predators to control their growth. They can be transported unintentionally through various human means of travel and trade. Invasive species proliferate rapidly, reducing biodiversity and disrupting ecosystems, economies, and societies. Simple actions like cleaning gear and draining water from boats can help limit the spread of invasive species.
oppurtunistic infection in HIV/AIDS AND IRISBhupendra Shah
HIV can lead to acquired immunodeficiency syndrome (AIDS) by destroying CD4 cells. When CD4 cell counts drop below certain levels, opportunistic infections (OIs) like Pneumocystis pneumonia or tuberculosis can occur. Starting antiretroviral therapy (ART) can sometimes cause immune reconstitution inflammatory syndrome (IRIS), where the immune system's recovery causes inflammation and worsening of symptoms from a pre-existing OI. IRIS is managed by continuing ART alongside anti-inflammatory drugs.
La candidiasis es una infección causada por hongos del género Candida. Puede presentarse en varias formas clínicas como pseudomembranosa aguda, eritematosa aguda o crónica, hiperplásica o queilitis angular. Factores como diabetes, VIH/SIDA, radioterapia, antibióticos y prótesis dentales mal ajustadas facilitan su desarrollo. El diagnóstico se realiza mediante examen clínico, microbiológico e histopatológico para identificar las levaduras de Candida en
Guideline – driven decision making in management of IFI in ICUmansoor masjedi
This document discusses guidelines for managing invasive fungal infections (IFIs) in intensive care unit (ICU) patients. It emphasizes the importance of a guideline-driven approach given high mortality and difficulty diagnosing IFIs. The summary discusses:
1) Developing treatment algorithms based on identifying at-risk patients, diagnostic testing, and early effective therapy.
2) Strategies for prophylactic, preemptive or empiric antifungal use depend on local infection patterns and illness severity to avoid delays and guide appropriate therapy.
3) A suggested treatment algorithm for ICU patients with invasive candidiasis that considers pathogen, severity of illness, and prior antifungal exposure to determine initial empiric ant
The document discusses the management of invasive fungal infections in Nigeria. It notes increasing cases of such infections with poor diagnostic tools. The main invasive fungal pathogens are discussed including Candida, Aspergillus, Cryptococcus, and some rare molds. Risk factors for invasive fungal infections in cancer patients are presented. The need for empirical antifungal therapy due to limitations in diagnosis is explained. The options for antifungal drugs including various azoles and echinocandins are also summarized.
HCM - Egreso - Diarrea en Paciente con VIHguest40ed2d
The document discusses diarrhea in HIV/AIDS patients. It notes that diarrhea is more common in developing countries (90% vs 30-50% in developed nations) and is often the initial symptom (51-72% of cases). Common causes of diarrhea include protozoa like Cryptosporidium, bacteria such as Salmonella and Mycobacterium avium, and viruses like cytomegalovirus. Diagnosis involves stool exams, biopsies, and tests like PCR. Treatments include antiretrovirals, antibiotics, antidiarrheals, and nutrition/hydration support.
Identification and Antifungal Susceptibility Pattern of Candida Species Causi...ijtsrd
Candidiasis A disease, which though common yet often neglected, has caused more havoc than reported and with the increase in antimicrobial resistance, antifungal agents that are more effective are to be used. The aim of this work is to identify Candida species causing oral thrush and vaginal candidiasis in Awka, Nigeria and evaluate the effect of Fluconazole and Nystatin in vitro against them. Using standard microbiological tests in identification, 80 samples 43.24 were positive for Candida out of the 185 samples gotten from the study subjects. Candida albicans 55 , C.tropicalis 35 and C.glabrata 10 were isolated from the oral cavity while Candida albicans 35 , C.krusei 31.67 , C.tropicalis 15 , C.dublinensis 8.33 , C.glabrata 5.00 , and C.parapsilosis 5.00 were isolated from the vagina. Fluconazole 50µl and Nystatin 100 Units were employed in the anticandidal sensitivity test using agar well diffusion method. More susceptibility to Nystatin than Fluconazole was recorded. From the oral cavity, C.tropicalis was the most susceptible while C.glabrata and C.parapsilosis were the most susceptible species from the HVS samples. This reveals the increase in isolation of non albicans Candida NAC and their growing resistance to Fluconazole which is commonly used hence the need to employ Nystatin as a first line drug for the treatment of oral thrush and vaginal candidiasis. Adindu J. C. | Anyamene C. | Chukwukaelo D. C. "Identification and Antifungal Susceptibility Pattern of Candida Species Causing Oral Thrush and Vaginal Candidiasis" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-2 , April 2023, URL: https://www.ijtsrd.com.com/papers/ijtsrd53899.pdf Paper URL: https://www.ijtsrd.com.com/biological-science/microbiology/53899/identification-and-antifungal-susceptibility-pattern-of-candida-species-causing-oral-thrush-and-vaginal-candidiasis/adindu-j-c
This document provides information on laboratory diagnosis of central nervous system (CNS) fungal infections. It discusses several diagnostic approaches including cerebrospinal fluid (CSF) examination, microscopic examination of CSF, fungal culture of CSF, serological testing for antibodies and antigens, and detection of specific fungal biomarkers like mannan, cryptococcal antigen, and galactomannan. Direct microscopic examination of CSF and fungal culture of CSF are important for diagnosis but have limited sensitivity. Serological tests provide a non-culture based approach and detection of antigens like mannan and cryptococcal antigen can aid diagnosis.
Zyvac TCV - The Indian Typhoid Conjugate VaccineGaurav Gupta
The document discusses a new typhoid conjugate vaccine called Zyvac-TCV developed by Zydus Vaccines. It provides details of a phase II/III clinical trial conducted to evaluate the immunogenicity and safety of Zyvac-TCV compared to another licensed typhoid conjugate vaccine. The results showed that Zyvac-TCV was non-inferior in inducing seroconversion and had a comparable safety profile. No serious adverse events were reported for either vaccine. The document concludes that Zyvac-TCV met the immunogenicity and safety endpoints for efficacy.
"What Will It Take To Control TB?" Richard Chaisson, MDUWGlobalHealth
Dr. Richard Chaisson, Professor of Medicine, Epidemiology and International Health and Director of the Center for Tuberculosis Research at the Johns Hopkins University in Baltimore was the keynote Jan. 19 as part of the Washington Global Health Discovery Series. His talk was on ""What Will It Take To Control TB?"
This document summarizes key issues discussed at a consensus conference on product safety in 2018. It covers:
1) Selection and screening processes in the aftermath of relaxing donor deferral policies for men who have sex with men.
2) Emerging viruses like Zika and transmissible spongiform encephalopathies like variant Creutzfeldt-Jakob disease.
3) Studies showing blood infectivity in variant Creutzfeldt-Jakob disease but not sporadic Creutzfeldt-Jakob disease patients.
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Candidemia in HIV-positive patients in Dschang District Hospital (West Region...Claude Nangwat
Candidemia has been identified as a public health problem in HIV-infected patients. The evaluation of CD4 count, transaminases and blood glucose, are being used as a means to monitor the health of HIV-infected patients, without excluding the diagnosis of candidemia and other opportunistic infections. In order to contribute in improving the care of HIV-infected patients attending Dschang District Hospital and later on, in other hospitals in Cameroon, we conducted from June to September 2014 a cross-sectional study, with general objective; to determine the association between candidemia and selected biochemical and haematological parameter changes in HIV-infected patients, as a possible indicator in monitoring HIV disease progression.
To do this, blood samples were collected from HIV-infected patients assigned to the UPEC of Dschang District Hospital for follow up, and haemogram report, CD4 counts, ALAT level, ASAT level, and glucose level in blood were evaluated by cytometric and spectrophotometric assays. Candida species were isolated from some blood samples, and then identified using CHROMagar Candida culture medium. The broth microdilution method was afterwards used to test the susceptibility of the fungal isolates vis-a-vis three conventional antifungal agents.
Mycological analysis of blood samples showed that eight (08) patients had candidemia, a prevalence of 6.11%. Eight (08) isolates were obtained from these eight (08) candidemic HIV-infected patients; this consisted of 4(50%) Candida albicans, 3(37.5%) Candida parapsilosis and 1(12.5%) Candida glabrata. All these isolates were resistant (MICs ranged from 2 to >256 µg/mL) to the antifungals used, that is, ketoconazole, amphotericin B and nystatin.
A significant correlation was found between candidemia and white blood cell count, with a correlation coefficient of r = 0.240 (p < 0.05). Based on the results obtained, the systematic diagnosis of candidemia should be performed in patients infected with HIV in Cameroon in order to improve on their care.
Key words: Candidemia, HIV, biochemical parameters, hematological parameters, Antifungals activities.
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Galati V. Quali sono i principali tipi di infezione? E come si manifestano? A...Gianfranco Tammaro
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Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
5. Review
• Different types of Invasive fungi
• Changing local epidemiology
• Risk factors
• Clinical picture
• Diagnosis
• Treatment & prophylaxis
6. Incidence of Systemic Infections:
Bacterial vs Fungal
225,000
No. of Cases of Sepsis
150,000
Gram-positive bacteria
Gram-negative bacteria
Fungi
75,000
25,000
15,000
10,000
5000
0
1991 1993 1995 1997 1999 2001
Year
Martin GS, et al. N Engl J Med. 2003;348(16):1546-1554.
7. Nosocomial Bloodstream Infections in
US Hospitals: 1995-2002
CoNS, coagulase-negative staphylococci; BSI, blood stream infection.
Surveillance and Control of Pathogens of Epidemiological Importance (SCOPE) study.
Wisplinghoff H, et al. Clin Infect Dis. 2004;39:309-317.
8.
9. Invasive Candidiasis
Mortality Associated with Candidemia
45
40
35
40%
Percent of Patients
30
25
20
25%
15
10
5
0
Patients with Patients with bacterial
candidal bloodstream (non-candidal)
infections bloodstream infections
Adapted from Edmond MB et al Clin Infect Dis 1999;29:239–244.
9
10. Impact of delayed treatment on mortality
Morrell M, Fraser VJ, Kollef MH. Delaying the empiric treatment of Candida bloodstream infection until positive blood
culture results are obtained: a potential risk factor for hospital mortality. Antimicrob Agents Chemother 2005;49: 3640–5.
13. Infections Caused by Non-albicans Candida
Are Increasing
100
90
80 C. krusei
70 C. parapsilosis
60 C. tropicalis
50 C. glabrata
40 C. albicans
30 Other
20
10
0
1997-1998 1999 2000 2001 2002 2003
Neither C. glabrata nor C. krusei showed a consistent increase or decrease in isolation rates overall
Increased rates of isolation of C. tropicalis (4.2% to 7.5% increase) and C. parapsilosis (4.6% to 7.3% increase)
over 134,000 consecutive isolates of Candida from cases of invasive candidiasis at 127 medical centers
Pfaller MA, et al. Clin Microbiol Rev. 2007;20(1):133-163.
14. Candida Species:
Incidence vs Mortality
Incidence of Candida albicans, 45.6%; incidence of non-albicans Candida, 54.4%*
%
Candida Species
*This study is based on data for the 2019 patients (pediatric and adult) enrolled from July 1, 2004 through March 5, 2008 from 23
North American centers who received a diagnosis of proven candidemia, including 2.1% other non-albicans Candida [C. lusitaniae,
C. dubliniensis, C. guilliermondii, other (not specified), and unknown].
Horn DL, et al. Clin Infect Dis. 2009;48(12):1695-1703.
15. Incidence of Fungal Infections after
SOT
Invasive Fungal
Aspergillus Candida
Infections
Kidney &
liver
1.4–14% 0–10% 90–100%
Heart 5–20% 77–91% 8–23%
Lungs/Heart-
Lungs
15–35% 25–50% 43–72%
Small
Intestine
40–59% 0–3.6% 80–100%
bardi S. et al. Transplant Int 2007;20:993–1015, Singh N. Clin Infect Dis 2000:31;545–53.
29. Risk Factors for Invasive Candidiasis In
ICU
∀ ≥3 antibiotics • Neutropenia
• Antibiotics ≥4 d • Immunosuppression
• Time ≥4 d in ICU • Concomitant infection
• Mechanical vent >48 • Diabetes mellitus
• Major Abd surgery • Candida coloniz ≥2 sites
• Candiduria (>100,000
• CVP
colonies)
• TPN
Pappas PG et al. Clin Infect Dis 2004;38:161-189;
Ostrosky-Zeichner L et al. Crit Care Med 2006;34:857-63
30. Invasive Aspergillosis: Risk factors Post
liver transplant
Early IA
< 3 months p
OR (95% CI)
4.9
Renal failure after SOT < 0.0001
(2.4 -9.8)
Hemodialysis after SOT 3.2 0.014
(1.3 - 8.1)
> 1 episode of bacterial 3.2 < 0.006
infection (3.2 - 17.4)
CMV disease 2.3 < 0.029
(1.1 - 4.9)
Reintervention is also risk factor
Gavaldà J et al, Clin Inf Dis 2005; 41:52-9
31. Risk factors of IA after Renal
transplantation
• High doses or prolonged duration of corticosteroids
• Graft failure requiring Hemodialysis
• Potent immunosuppressive therapy for rejection
Singh N et al, Am J Transplant 2009, 9, S180-S191 .
32. Risk factors of IA after Heart
transplantation
• Isolation of Aspergillus from respiratory tract cultures
• Reintervention
• CMV disease
• Hemodialysis
Munoz P et al, Curr Opin Infect Dis 2006; 19: 365-370
Singh N et al, Am J Transplant 2009, 9, S180-S191 .
35. Fungal Infection Post Biologics
• Till 2007 ,281 reports of invasive fungal infections (IFIs)
associated with the 3 anti-TNF- alpha agents, ie,
infliximab, etanercept, and adalimumab
• 226 (80%) were associated with infliximab, 44 (16%)
with etanercept, and 11 (4%) with adalimumab
• Histoplasmosis (n=84 [30%]), candidiasis (n=64 [23%]),
and aspergillosis (n equals 64 [23%]).
• Infl iximab induces apoptosis memory T cells, whereas
etanercept is antiapoptotic
37. SPECTRUM OF INVASIVE
CANDIDA INFECTIONS
organ infection
candidemia
acute ‘hepato-
candidemia disseminated splenic’
candidiasis candidiasis
38. Candida: Infection sites
C. parapsilosis
C. parapsilosis C. tropicalis
C. tropicalis
C. albicans
C. albicans
C. krusei
C. krusei
C. glabrata
C. glabrata
46. Interaction of Aspergillus with the host
A unique microbial-host interaction
Frequency of aspergillosis
Frequency of aspergillosis
Acute IA
ABPA
Allergic sinusitis
Subacute IA
Aspergilloma
Chronic cavitary
Chronic fibrosing
Immune dysfunction Immune hyperactivity
. www.aspergillus.man.ac.uk
www.aspergillus.man.ac.uk
61. Serology
• 1,3-,D-glucan is a component of fungal
cell walls that can be detected by serology
• One way to effectively use the 1,3-,D-glucan
or galactomannan assays may be to serially
screen patients who are at high risk for IFIs
and/or use them to monitor response to
therapy .
67. Cell Wall Active Antifungals
Cell membrane
• Polyene antibiotics
• Azole antifungals
DNA/RNA synthesis
• Pyrimidine analogues
- Flucytosine
Cell wall
• Echinocandins
-Caspofungin acetate
- micafungin
Atlas of fungal Infections, Richard Diamond Ed. 1999
Introduction to Medical Mycology. Merck and Co. 2001
68. Amphotericin B (Fungizone™)
• Binds ergosterols in fungal cell membrane forming pores
in the membrane & interferes with permeability and
transport functions.
• Broad spectrum antifungal
• Lipid formulations facilitate drug insertion within the
fungal cytoplasmic membrane while reducing uptake in
human cells, so limiting toxicity.
71. Amphotericin B - Nephrotoxicity
• Renovascular and tubular mechanisms
– Vascular-(decrease in renal blood flow) leading to drop
in GFR, azotemia
– Tubular-distal tubular ischemia, wasting of potassium,
sodium, and magnesium
• Sodium loading-> blunt the vasoconstriction and
tubular-glomerular feedback
– Administration of 500 ml of NaCl before and after
amphotericin B infusion
73. Azoles - Mechanism
• Azoles bind to (fungal P450 enzymes)
lanosterol 14α-demethylase inhibiting
the production of ergosterol
– Some cross-reactivity is seen with
mammalian cytochrome p450
enzymes
• Drug Interactions
• Impairment of steroidneogenesis
(ketoconazole, itraconazole)
74. Fluconazole
Advantages Disadvantages
• Well tolerated • Fungistatic
• IV/PO formulations • Resistance is
• Favorable increasing
pharmacokinetics • Narrow spectrum
• Good activity against • (Drug interactions)
C. albicans and • Not in biofilm
Cryptococcus
75. Key Biopharmaceutical Characteristics of
the Triazole Antifungals
Fluconazole Voriconazole
Spectrum vs. C. albicans, C. tropicalis +/- Broad, includes most
Candida and Candida spp.,
Aspergillus No Aspergillus Aspergillus, Fusarium
sp. Not Zygomycoses
Oral formulation Tablet (>90%) Tablet (>90%)
(% bioavailibility)
Intravenous Available, no solubilizer Available, cyclodextrin
formulation
R.E. Lewis 2002. Exp Opin Pharmacother 3:1039-57.
76. Voriconazole –Dose & Side Effects
• Dose 6mg/kg 1st day 6mg/kg bid then 4mg/kg
bid
• Visual disturbances (~ 30%)
– Decreased vision, photophobia, altered color
perception and ocular discomfort
– IV > oral
– No evidence of structural damage to retina
77. The Fungal Cell Wall
mannoproteins
Echinocandins inhibition
of ß-(1,3)glucan synthase
osmotic fragility
β1,3
β1,6
glucans
Cell β1,3 glucan chitin
membrane synthase
ergosterol
Atlas of fungal Infections, Richard Diamond Ed. 1999
Introduction to Medical Mycology. Merck and Co. 2001
78. Echinocandins - spectrum
Highly active Very active
Candida albicans, Candida parapsilosis
Candida gulliermondii
Candida glabrata, Aspergillus fumigatus
Candida tropicalis, Aspergillus flavus
Candida krusei
Low MIC ,with Low MIC, but without fungicidal
fungicidal activity and activity in most instances.
good in-vivo
79. Echinocandins
Caspofungin Micafungin Anidulafungin
Absorption Not orally absorbed. IV only
Metabolism spontaneous degradation, Chemical degradated
hydrolysis and N-acetylation Not hepatically
metabolized
Elimination Limited urinary excretion. Not dialyzable
Half-life 9-23 hours 11-21 hours 26.5 hours
Dose 70 mg IV on day 100 mg IV 200 mg IV on day 1,
1, then 50 mg IV once daily then 100 mg IV
daily thereafter daily thereafter
Dose Child-Pugh B None None
Adjustment 70 mg IV on day 1,
then 35 mg IV daily
thereafter
87. Candidemia
• If species is unknown, either fluconazole (800mg loading dose, 400 mg
daily) or an echinocandin is appropriate initial therapy for most adult
patients (AI)
• An echinocandin is favored if
– Moderately severe to severe illness.
– Recent azole use for treatment or prophylaxis (AIII), or
– Isolate is known to be C. glabrata or C. krusei (BIII)
• Fluconazole for patients who are
– less critically ill and
– who have no recent azole exposure (AIII).
• Remove or exchange intravenous catheters
• Treat for two weeks after clearance of bloodstream
IDSA Guidelines 2010.
88. Treatment options
of blood candidal infections in adults
Treatment options of invasive fungal infections in adults 2010
89. Candidemia: catheter removal
• Removal of central venous line
– is a consensus recommendation for the
non-hematological patients II A
- in hematology patients the quality of
evidence is lower IIIB
- removal is always recommended when
C parapsilosis is isolated II A
IDSA Guidelines 2010.
90. Duration of antifungal therapy in
candidemia : recommendations
Non-neutropenic adults: at least 14 days after the last +ve
blood culture and resolution of signs and symptoms : III B
Neutropenic patients: at least 14 days after the last +ve
blood culture and resolution of signs and symptoms and
resolved neutropenia: III C
IDSA Guidilines 2010.
91. Invasive pulmonary aspergillosis :1st line
Agent Grade Comments
Voriconazole IA 2 x 6 mg/kg D1 then 4 mg/kg BID
Ambisome IB 3 – 5 mg/kg
Caspofungin IC
Amphotericin B ID
IDSA Guidelines 2010.
92. Treatment options
of aspergillus infections
Treatment options of invasive fungal infections in adults 2010
93. Aspergillosis
• Surgery (CIII) in case of
– Lesion near to a large vessel
– Hemoptysis from a single lesion
(embolization is an alternative)
– Localized extrapulmonary lesion including
central nervous system lesion
– Fungal sinusitis
94. Timing of Intervention
Directed
infection Empiric
specific symptom
Pre-emptive
refractory fever
Prophylactic
nonspecific symptom ± early markers
suppressive Rx
basic disease
Progression
95. Different antifungal strategies for treatment in invasive fungal
infections based on diagnostic stage.
Prophylactic treatment preventive administration of an antifungal agent to patients at risk of IFI
without attributable signs and symptoms.
Empiric treatment is defined as the initiation of antifungal treatment in patients at high risk of IFIs
and established clinical signs and symptoms, but without microbiological documentation.
Preemptive therapy aims to treat a suspected early IFI but uses radiologic studies, laboratory
markers, applied when the decision of treatment is based on early diagnostic test. (Radiographic
imaging,( Halo sign, air crescent) Serology: Galactomannan B-D-Glucan, histopathology
Targeted therapy needs a pathogen identification to be defined.
1.Zaragoza R et al. Therapeutics and Clinical Risk Management 2008:4(6) 1261–1280.
96. Treatment of Suspected Invasive
Candidiasis (Definitions)
• Prophylactic therapy: given to everyone in a given class (ex.
BMT patients who are at very high risk for IC).
• Preemptive therapy: patients at risk are monitored closely
and therapy is initiated with early evidence suggesting infection
(ex. positive Candida cultures at non-sterile sites, clinical
suspicion) to prevent disease.
• Empirical therapy: (ex. therapy is started because a cancer
patient has remained febrile after 4days of broad-spectrum
antibiotics).
• Directed therapy: is based on a clinical or laboratory finding
indicating that an infection is present (ex. positive blood culture
for Candida species).
97. Empirical antifungal treatment in ICU
Clinical Prediction Rule (CPR)
• All of
– [(day 1–3 of ICU stay): mechanical ventilation,
– broad spectrum antibiotics
– And central venous catheter CVC
• And ONE of
– TPN (total parentral neutrition) (d1-3)
– Dialysis (d1-3)
– Major surgery (d-7-0),
– Pancreatitis (d-7-0),
– Steroids (d-7-3),
– Other immunosuppressive agents (d-7-0)].
sensitivity of 90%, a specificity of 48%
Ostrosky-Zeichner L, et al. 2007. Eur J Clin Microbiol Infect Dis, 26:271–6.
Ostrosky-Zeichner L, et al. Mycoses. 2011 Jan;54
98. Empirical antifungal treatment in ICU
The Candida Score
• Parenteral nutrition ................................................. (+1)
• Prior surgery ............................................................ (+1)
• Multifocal Candida colonization *........................... (+1)
• Severe sepsis ........................................................... (+2)
The authors concluded that a “Candida score” of 2.5 could accurately
select patients who would benefit from early antifungal treatment
Leon C, et al. 2006. Crit Care Med, 34:730–7.
Leon C, et al. 2009 Crit Care Med 37:1624–1633.
99. Prophylaxis of high-risk patients after Liver
transplantation
(Recommendations of the AST Infectious disease Community of Practice)
• Lipid formulation of AmB (II 2)
– 3-5 mg/kg/day
• Or an Echinocandin (II 3)
• Duration 3-4 weeks or until resolution of risk
factors
Singh N et al, Am J Transplant 2009, 9, S180-S191 .
100. Prophylaxis for high-risk patients after Lung
transplantation (recommendations of the AST Infectious disease Community of
Practice)
• Inhaled lipid formulations of amphotericin B
– Nebulized L-AmB
• 25 mg three times per week x 2 months
• In high-risk patients
– Voriconazole* : 400 mg/day x 4 months
Singh N et al, Am J Transplant 2009, 9, S180-S191 .
101. Prophylaxis for high-risk patients after Heart
transplantation
(Recommendations of the AST Infectious disease Community of Practice)
• Voriconazole
– 200mg BID for 50-150 days
Singh N et al, Am J Transplant 2009, 9, S180-S191 .
102. Fluconazole Prophylaxis: ? Pre Emptive Approach
HCT & AML Monitor with Serum galactomannan Thrice wkly
Antifungal use if Asp GM x consecutive 2 positive •
CT abnorm & BAL (+) Aspergillus •
antifungal use reduced by 78%
Survival with IFI, 64%
Maertens J et al, Clin Infect Dis 2005;41:1242
103. Antifungal prophylaxis in
haematology patients
CLINICAL MICROBIOLOGY AND INFECTION April 2012
3rd European Conference on Infections in Leukaemia (ECIL-3)