A 11-year-old male child presented to the district hospital in Makawanpur, Nepal with fever, headache, fatigue, muscle pain. On examination, the child was alert with pallor. Laboratory tests showed anemia, thrombocytopenia, and neutrophilia. Differential diagnoses included leptospirosis. Leptospirosis is caused by Leptospira bacteria and transmitted through contact with infected animal urine. It has a worldwide distribution and high prevalence in Nepal. Clinical presentations include anicteric or icteric illness. Icteric leptospirosis can lead to liver and kidney damage. Rapid IgM testing was positive, confirming leptospirosis as the diagnosis in
Harrison 16° edicion - Fisiopatología Mcphee:
Proceso fisiopatológico con múltiples causas, evolución progresiva del deterioro renal.
Perdida irreversible y progesiva (+de 3 meses) del numero y funcionamiento de las nefronas
Insuficiencia renal terminal
Uremia: Sindrome clínico y de laboratorio que refleja la disfuncion de todos los sistemas organicos como consecuencia de la insuficiencia renal no tratada.
Hiperfiltracion: cuando la GFR de las nefronas sobrevivientes aumenta por encima de lo normal.
Causa más frecuente: (75%)
-Diabetes mellitus
-Hipertension
-glomerulonefritis
Menos Frecuentes:
-Enfermedad renal poliquistica
-Obstruccion
-infección
-Anomalias congenitas
-Lesion o traumatismo
A diferencia de la enfermedad renal aguda
Ocasiona la perdida irreversible de las nefronas
Harrison 16° edicion - Fisiopatología Mcphee:
Proceso fisiopatológico con múltiples causas, evolución progresiva del deterioro renal.
Perdida irreversible y progesiva (+de 3 meses) del numero y funcionamiento de las nefronas
Insuficiencia renal terminal
Uremia: Sindrome clínico y de laboratorio que refleja la disfuncion de todos los sistemas organicos como consecuencia de la insuficiencia renal no tratada.
Hiperfiltracion: cuando la GFR de las nefronas sobrevivientes aumenta por encima de lo normal.
Causa más frecuente: (75%)
-Diabetes mellitus
-Hipertension
-glomerulonefritis
Menos Frecuentes:
-Enfermedad renal poliquistica
-Obstruccion
-infección
-Anomalias congenitas
-Lesion o traumatismo
A diferencia de la enfermedad renal aguda
Ocasiona la perdida irreversible de las nefronas
Hemolytic Uremic Syndrome: A Dangerous Complication of E. coliBill Marler
In this presentation provided by the nation's foremost food poison law firm - Marler Clark, Hemolytic Uremic Syndrome (HUS) is explained. HUS is a rare and highly dangerous result of an E. coli infection and can result in acute kidney failure
This describes leptospirosis pathology, diagnosis, complications and management . This is base on evidence of sri lankan guidelines and research articles
Hemolytic Uremic Syndrome: A Dangerous Complication of E. coliBill Marler
In this presentation provided by the nation's foremost food poison law firm - Marler Clark, Hemolytic Uremic Syndrome (HUS) is explained. HUS is a rare and highly dangerous result of an E. coli infection and can result in acute kidney failure
This describes leptospirosis pathology, diagnosis, complications and management . This is base on evidence of sri lankan guidelines and research articles
Leptospirosis is an infection caused by corkscrew-shaped bacteria called Leptospira. Signs and symptoms can range from none to mild such as headaches, muscle pains, and fevers; to severe with bleeding from the lungs or meningitis. If the infection causes the person to turn yellow, have kidney failure and bleeding, it is then known as Weil's disease.If it causes lots of bleeding into the lungs then it is known as severe pulmonary hemorrhage syndrome.
Up to 13 different genetic types of Leptospira may cause disease in humans. It is transmitted by both wild and domestic animals. The most common animals that spread the disease are rodents.[7] It is often transmitted by animal urine or by water or soil containing animal urine coming into contact with breaks in the skin, eyes, mouth, or nose. In the developing world the disease most commonly occurs in farmers and poor people who live in cities. In the developed world it most commonly occurs in those involved in outdoor activities in warm and wet areas of the world.Diagnosis is typically by looking for antibodies against the bacterium or finding its DNA in the blood
We will discuss briefly common tropical diseases found in INDIA. The presentation is basic for undergraduate students. we are covering dengue, malaria, chikungunya, and rickettsia in this presentation.
Typhoid fever, also known as enteric fever, is a potentially fatal multisystemic illness caused primarily by Salmonella enterica, subspecies enterica serovar typhi and, to a lesser extent, related serovars paratyphi A, B, and C.
The protean manifestations of typhoid fever make this disease a true diagnostic challenge. The classic presentation includes fever, malaise, diffuse abdominal pain, and constipation. Untreated, typhoid fever is a grueling illness that may progress to delirium, obtundation, intestinal hemorrhage, bowel perforation, and death within 1 month of onset. Survivors may be left with long-term or permanent neuropsychiatric complications.
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
2. A 11 Y/M child presented to district hospital,
Makawanpur with complains of :
• Fever
• Headache
• Fatigue
• Muscle pain
• On Examination: Child is alert, pallor
present, icterus absent, other vitals
stable
• Investigations show :
• Anemia ( Hb 8gm/dl)
• Thrombocytopenia (68000)
• Neutrophilia with Normal TLC
DIFFERENTIAL DIAGNOSIS ??
3. EPIDEMIOLOGY
• Estimated that more than one million human cases occur worldwide
annually, including almost 60,000 deaths
• Regions with highest incidence includes south and southeast asia ,
Oceania, the Caribbean, parts of sub-saharan Africa and parts of latin
America
• In united states, incidence is 100 to 150 cases annually
• In Nepal, Prevalence of clinical leptospirosis is 5.4%
UpToDate
Determinants of clinical leptospirosis in Nepal, R Shrestha et al.
4. LEPTOSPIRA UNDER THE MICROSCOPE
Long, Thin, Highly Coiled
Dark Field Microscopy FL
5. EPIDEMIOLOGY
• Rainfall; Contaminated environment
• Poor Sanitation; Inadequate drainage facilities
• Presence of rodents, cattle & stray dogs
• Walking/ working bare foot poses high risk
• Difficult to pinpoint the source of infection
• Any person can get infected, if exposed to contaminated environment
7. RESERVOIRS OF INFECTION
• Rodents
• (Rattus rattus, Rattus norvegicus, Mus musculus)
• Dogs
• Wild animals
• Domesticated animals
• Leptospira are excreted in the urine
8. MODES OF TRANSMISSION
1. Direct contact with urine or tissue of infected animal
Through skin abrasions, intact mucus membrane
2. Indirect contact
Broken skin with infected soil, water or vegetation
Ingestion of contaminated food & water
3. Droplet infection
Inhalation of droplets of infected urine
9.
10. PATHOGENESIS OF SEVERE DISEASE
Leptospira
Damage to small
blood vessels
Vasculitis
Direct cytotoxic injury
Immunological injury
Massive migration of fluid from
Intravascular to interstitial compartment
Renal dysfunction, vascular
Injury to internal organs
20. CARDIAC FORM
Cardiac manifestations
• Hemorrhagic Myocarditis
• Cardiomyopathy / Cardiac failure
• Arrhythmias, Hypotension / Death
• Atrial fibrillation / Conduction defects
ECG changes
• Non Specific ST-T changes
• Low voltage complexes
Reported in Srilanka, Barbados & Portugal
21. OTHER MANIFESTATIONS
Aseptic Meningo-encephalitis
• It is rare; It occurs in the Immune phase
• CSF – proteins , lymphocytes
• Convulsions, Encephalitis, Myelitis & Polyneuropathy
Ocular manifestations
• Late complication; Conjunctival suffusion/hemorrhage
• Anterior uveitis, Iritis, Iridocyclitis, chorioretinitis
• Occurs in 2 weeks to 1 yr. (average 6 months)
22. BACK TO CASE
• Child was admitted with diagnosis of Dengue Fever and and kept on i/v fluids,
anti-pyretics and rest.
• On 3rd day of admission: Child is still febrile, thrombocytopenia, leukocytosis,
Decreased hemoglobin, jaundice (increased TSB)
• Investigations: Dengue NS1, IgM, HAV, HCV Negative
Increased AST and ALT
• Rapid IgM test for leptospira : Positive
24. LABORATORY TESTS
• TC / DC / ESR / Hb / Platelet count
• Serum Bilirubin / SGOT/ SGPT
• Blood Urea, Creatinine & Electrolytes
• Chest X-Ray; ECG
• Tests for diagnosis of Leptospirosis
• Culture for Leptospira: Positive
• MAT: Sero conversion or 4 fold rise/ high titer
• ELISA / MSAT : positive
• MAT: Microscopic agglutination test
• (M)SAT: Macroscopic slide agglutination Test
25. INTERPRETATION OF TESTS
MAT
• Antibody IgM titers of >1/80 or IgG 1/400
• titers indicate current infection
• Declining titers indicate past infection
• To confirm, second sample is essential
ELISA
SAT
• Valuable for Dx of current infection
• IgM antibodies alone are useful
26. INTERPRETATION OF TESTS
ELISA/SAT MAT Interpretation
Positive Positive Current Infection
Positive Negative Current Infection
Negative Positive Past Infection
Negative Negative R/o Leptospirosis
Not available Rising titers Current Infection
27. WHO Guide - Faine’s Criteria
• Headache
2
• Fever
2
• Temp > 39 F
2
• Conjn. suffusion
4
• Meningism
4
• Muscle pain
4
• Jaundice
1
• Alb, creatinine
1
• Rain fall
5
• Contaminated
water
4
• Animal contact
1
• ELISA IgM + ve
15
• SAT positive
15
• MAT high titer
15
• MAT rising titer
25
• Culture positive
Definite
28.
29. ROLE OF CORTICOSTEROIDS AND
PLASMAPHERESIS
• Due to vasculitic nature of severe leptospirosis, particularly in setting of
pulmonary involvement
• Plasmapheresis also used in severe leptospirosis
32. 1) Which among the following is NOT used in Leptospirosis?
• Microscopic agglutination test
• Dark field illumination
• Macroscopic agglutination test
• Weil felix reaction
33. 2) Which of the following statements about Leptospirosis is true ?
• Rats are prime reservoirs
• Fluoroquinolone are the drug of choice
• Person to person transmission is common
• Hepatorenal syndrome may occur in upto 50% of patients
34. 3) Which of the following organism can cause acalculous cholecystitis ?
• Leptospirosis
• Malaria
• Staphylococcus
• Nocardiosis
35. REFERENCES
• Nelson Textbook of pediatrics, 21st Edition
• Indian academy of pediatrics Guidelines
• UpToDate
• Textbook of pediatrics by Piyush Gupta
Leptospires enter humans through mucous membranes (primarily eyes, nose, and mouth) or abraded skin or by ingestion of contaminated
water. After penetration, they circulate in the bloodstream to all body organs, causing endothelial lining damage of small blood vessels
with secondary ischemic damage to end organs.
Stages of anicteric and icteric leptospirosis.
Correlation between clinical findings and presence of leptospires
in body fluids. CSF, cerebrospinal fluid.
The septicemic phase of anicteric leptospirosis has an abrupt onset with flu-like symptoms of fever, shaking chills, lethargy, severe headache,
malaise, nausea, vomiting, and severe debilitating myalgia most prominent in the lower extremities, lumbosacral spine, and abdomen.
Conjunctival suffusion with photophobia and orbital pain, generalized lymphadenopathy, and hepatosplenomegaly may also be present. A transient (<24 hr) erythematous maculopapular, urticarial, petechial, purpuric, or desquamating rash occurs in 10% of cases. Rarer manifestations include pharyngitis, pneumonitis, arthritis, carditis, cholecystitis, and orchitis. The second or immune phase can follow a brief asymptomatic interlude and is characterized by recurrence of fever and aseptic meningitis. Although 80% of infected children have abnormal CSF profiles, only 50% have clinical meningeal manifestations. CSF abnormalities include a modest elevation in pressure, pleocytosis with early polymorphonuclear leukocytosis followed by mononuclear predominance rarely exceeding 500 cells/μL, normal or slightly elevated protein levels, and normal glucose values. Encephalitis, cranial and peripheral neuropathies, papilledema, and paralysis are uncommon. A selflimited unilateral or bilateral uveitis can occur during this phase, rarely resulting in permanent visual impairment. Central nervous system symptoms usually resolve spontaneously within 1 wk, with almost no mortality.
Weil syndrome is a rare (<10% of cases) severe form of leptospirosis seen more commonly in adults (>30 yr) than in children. The initial manifestations are similar to those described for anicteric leptospirosis.
The immune phase, however, is characterized by jaundice, renal failure, thrombocytopenia, and, in fulminant cases, hemorrhage and cardiovascular
Collapse.
Hepatic involvement leads to right upper quadrant pain, hepatomegaly, direct and indirect hyperbilirubinemia, and modestly elevated serum levels of hepatic enzymes. Liver function usually returns to normal after recovery.
All patients have abnormal findings on urinalysis (hematuria, proteinuria, and casts), and azotemia is common, often associated with oliguria or anuria. Acute kidney failure occurs in 16-40% of cases and is the principal cause of death.
Abnormal electrocardiograms are present in 90% of cases, but congestive heart failure is uncommon.
MAT: taken at least 2 weeks apart and tested in same laboratory