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‫اللهم إني أستغفرك لكل ذنب‬
 ‫.. خطوت إليه برجلي  .. أو مددت‬
             ‫إليه يدي‬
‫.. أو تأملته ببصري .. أو أصغيت إليه‬
 ‫إلي‬
              ‫بأذني‬
Invasive Fungal
Infections Management
       Updates
 Ahmed Saad MD. FACP.
 Ass Prof .Cairo university
Review
•   Different types of Invasive fungi
•   Changing local epidemiology
•   Risk factors
•   Clinical picture
•   Diagnosis
•   Treatment & prophylaxis
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.
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.
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
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.
Epidemiology of Invasive Mycosis




Pfaller & Diekema, 2007, Clin. Micro. Rev. 20:133-163
Review
•   Different types of Invasive fungi
•   Changing epidemiology
•   Clinical picture
•   Risk factors
•   Diagnosis
•   Treatment & prophylaxis
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.
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.
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.
Invasive Aspergillose : Mortality
                     Denning DW    Paterson DL, Singh     Lin QY
                     Clin Infect           N            Clin Infect
                          Dis          Medicine             Dis
                      till 1995       1987-1997         1995-1999
Bone marrow             90 %            92 %              86.7 %
AIDS/HIV                81 %               -             85.7 %
Liver transplant.       93 %             87 %            67.6 %
Kidney transplant.      70 %             75 %            62.5 %
Lung Transplant.        77 %             55 %            62.5 %
Heart transplant.       50 %             78 %            43.6 %
Pancreas
                                        100 %               -
transplant
Review
•   Different types of Invasive fungi
•   Our local data
•   Clinical picture
•   Risk factors
•   Diagnosis
•   Treatment & prophylaxis
Our local data For Candida
fungogram for Candida Isolates (In-patient)   March 2011- June 2012

                               Candida Candida Candida Candica Candica             Candida Candida
                               Albicans Tropicalis Glabrata Parapsilosis Krusei   Lusitaniae Dubliniensis
No. of Isolates                   73       23          7         5          2          1          5
Caspufugen                       100       100       100        100       100        100        100
Amphotericin B                    96       98        100        100       100        100        100
Flucytosine                       97       100       100        100        50        100          66
Fluconazole                       97       89         66        100         0        100        100
Voriconazole                     100       100        66        100       100        100        100
Caspofungin                      100       100       100        100       100        100        100
Dr Erfan & Bagedo Hospital Data
                     2010
sample Candida Candida Candida Candida Candida
       Parapsil Albicans Tropicalis Glabrata Krusie
       iosis


Blood    8         6            6            1           1
BAL                9            1
Sputum             4

Urine              1                         1
   • Aspergillus +ve in 3 sputum samples & 24 environmental
No of Candidal isolates
  (115) in 18 monthes
 Candida albicans
     63.5%




                                                  Candida dublinensis
                                                         4.3%
                                                 Candida krusei
                                                     1.7%

                                               Candida parapsilosis
                                                      4.3%
                                         Candida glabrata
                                              6.1%
                    Candida tropicalis
                         20.0%
Am




                         0
                             20
                                  40
                                       60
                                            80
                                                 100
                                                       120
  ph
     o   te
            ric
                in
                     B


   Fl
     uc
        yt
           o   si
                 ne


  Fl
    uc
       on
          a    zo
                 le

 Vo
    r   ic
          on
            az
                 ol
                   e

  C
   as
        po
          fu
            ng
                                                             Candida Albicans




              in
0
Am




                            20
                                 40
                                      60
                                           80
                                                100
                                                      120
  ph
    ot
       er
         ic i
                n
                    B

    Fl
      uc
        yt
           os
             in
               e

   Fl
      u   co
             na
                zo
                  le

  Vo
    ric
        on
          az
            ol
                    e

   Ca
     sp
        of
           u   ng
                 in
                                                            Candida tropicalis
Am




                            0
                                20
                                     40
                                          60
                                               80
                                                    100
                                                          120
     ph
        o   te
               ric
                  in
                       B


     Fl
       uc
         yt
           os
             in
                       e

  Fl
     uc
        on
           az
              ol
                 e

 Vo
    ric
            on
               az
                 ol
                       e

 C
  as
    po
      fu
        ng
                       in
                                                                Candida Glabrata
Am




                                0
                                    20
                                         40
                                              60
                                                   80
                                                        100
                                                              120
     ph
          ot
               er
                    ic
                      in
                           B


     Fl
       uc
         yt
            o        si
                       ne


 Fl
   uc
     on
                    az
                      ol
                           e

 Vo
    ric
       on
                    az
                      ol
                        e

 C
  as
          po
                fu
                     ng
                           in
                                                                    Candida parapsislosis
Am




                           20
                                40
                                     60
                                          80




                       0
                                               100
                                                     120
  ph
    ot
       er
         ici
               n
                   B

    Fl
       uc
         yt
            os
              in
                e

   Fl
     uc
        on
          az
             ol
                e

  Vo
    ric
        on
          az
            ol
              e

  Ca
    sp
       of
         un
           gi
             n
                                                           Candida Krusei
Am




                            0
                                20
                                     40
                                          60
                                               80
                                                    100
                                                          120
     ph
        o   te
              ri c
                  in
                       B


     Fl
       uc
         yt
            os
               in
                  e

 Fl
   uc
     on
       az
         o             le

 Vo
    ric
       on
         az
           o           le

 C
  as
    po
      fu
        ng
          in
                                                                Candida Dubliniensis
Review
•   Different types of Invasive fungi
•   Epidemiology
•   Risk factors
•   Clinical picture
•   Diagnosis
•   Treatment & prophylaxis
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
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
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 .
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 .
Fungal Infection Post Biologics
Fungal Infection Post Biologics
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
Review
•   Different types of Invasive fungi
•   Epidemiology
•   Clinical picture
•   Risk factors
•   Diagnosis
•   Treatment & prophylaxis
SPECTRUM OF INVASIVE
      CANDIDA INFECTIONS


                    organ infection
candidemia

                 acute         ‘hepato-
candidemia   disseminated      splenic’
             candidiasis     candidiasis
Candida: Infection sites

      C. parapsilosis
      C. parapsilosis   C. tropicalis
                        C. tropicalis




C. albicans
C. albicans


                             C. krusei
                              C. krusei
                             C. glabrata
                             C. glabrata
Candida: Hepatosplenic
      candidiasis
               FEVER
               FEVER


     ALKALINE PHOSPHATASE
     ALKALINE PHOSPHATASE

           NEUTROPHILS
           NEUTROPHILS




DISSEMINATION MICROCOLONIES ‘BULLS EYE’
DISSEMINATION MICROCOLONIES ‘BULLS EYE’
Renal candidiasis
Esophageal Candidiasis




             Baseline         After caspofungin
Courtesy of John Rex, MD
Candida Retinitis
Candida Endocarditis
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
Timeframes

IPA                   days/1-4 weeks

Subacute IPA          weeks/2-3 months

CCPA                  months/years

Aspergilloma          months/years
Aspergilloma




                      Patient RT
                      December 2002

                      Cough (mild) &
                      tired




               Wythenshawe Hospital
Aspergilloma – may be mobile in the cavity




 Upright                                Prone

                           Severo on www.aspergillus.man.ac.uk
Aspergilloma




               Severo on www.aspergillus.man.ac.uk
Fungal Sinusitis
Fungal Sinusitis
Aspergillus Endocarditis
Zygomycosis in SOT

• Rhinocerebral form
• 76% diabetes and corticosteroids
• 56% mortality
Review
•   Different types of Invasive fungi
•   Epidemiology
•   Clinical picture
•   Risk factors
•   Diagnosis
•   Treatment & prophylaxis
Invasive aspergillosis diagnosis
• Radiology: chest X-ray and CT
• Microbiology
  – Respiratory secretions: BAL/biopsy
     • Direct microscopy
     • culture
• PCR

      Ergin et al. Transplant International 2003; 16: 280-286
IA in solid-organ transplant
          recipients
Diagnosis of Pulmonary Aspergillosis
 •Pulmonary Infection
 – Peripheral infiltrates

 – "halo" sign on chest CT scan


 – Broncho-alveolar lavage ++
     •   Direct exam, Culture, Ag, PCR

                                         Halo sign ??
Fungal Pneumonia
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 .
Review
•   Different types of Invasive fungi
•   Epidemiology
•   Clinical picture
•   Risk factors
•   Diagnosis
•   Treatment & prophylaxis
Antifungal Agents
Cell Membrane Active Antifungals


               Cell membrane
                • Polyene antibiotics
                  - Amphotericin B, lipid
               formulations


                • Azole antifungals
                  - Ketoconazole
                  - Itraconazole
                  - Fluconazole
                  - Voriconazole
                  -Posaconazole
DNA/RNA synthesis Inhibitors
               Cell membrane
               • Polyene antibiotics
               • Azole antifungals


               DNA/RNA synthesis
               • Pyrimidine analogues
                - Flucytosine



              Cell wall
               • Echinocandins
                -Caspofungin acetate
              (Cancidas)
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
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.
Lipid Amphotericin B Formulations
           Abelcet ® ABLC                                                Ambisome ® L-AMB
                                          Amphotec ABCD ®




   Ribbon-like particles              Disk-like particles              Unilaminar liposome
   Carrier lipids: DMPC,              Carrier lipids: Cholesteryl      Carrier lipids: HSPC,
   DMPG                                sulfate                         DSPG, cholesterol(1:9)
   (1:1)                              Particle size (µm): 0.12-        Particle size (µm) : 0.08
   Particle size (µm): 1.6-           0.14
   11
DMPC-Dimyristoyl phospitidylcholineHSPC-Hydrogenated soy phosphatidylcholine
DMPG- Dimyristoyl phospitidylcglycerol
                                   DSPG-Distearoyl phosphitidylcholine
Lipid AMB Formulations-
           Summary
• Efficacy
  – Lipid formulation > AMB-deoxy
• Nephrotoxicity
  – L-AMB < ABLC < ABCD << AMB-deoxy
• Infusion related toxicity
  – L-AMB < ABLC < ABCD < AMB-deoxy
• Product cost (AWP)
  – L-AMB > ABLC > ABCD > AMB-deoxy
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
Azole Antifungals for Systemic
           Infections
• Itraconazole (Sporanox)
• Fluconazole (Diflucan)              Triazoles (3N)
• Voriconazole (Vfend)
                                      “2nd generation
                                         triazole”




Fluconazole            Ketoconazole
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)
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
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.
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
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
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
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
Review
•   Different types of Invasive fungi
•   Changing epidemiology
•   Risk factors
•   Clinical picture
•   Diagnosis
•   Treatment &prophylaxis
•   Updated guidelines
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.
Treatment options
              of blood candidal infections in adults




Treatment options of invasive fungal infections in adults 2010
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.
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.
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.
Treatment options
                       of aspergillus infections




Treatment options of invasive fungal infections in adults 2010
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
Timing of Intervention
            Directed
infection          Empiric

specific symptom
                             Pre-emptive
refractory fever
                                           Prophylactic
nonspecific symptom ± early markers

suppressive Rx


basic disease


                                            Progression
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.
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).
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
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.
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 .
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 .
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 .
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
Antifungal prophylaxis in
           haematology patients




 CLINICAL MICROBIOLOGY AND INFECTION April 2012
3rd European Conference on Infections in Leukaemia (ECIL-3)
 invasive Fungal dis  2012
 invasive Fungal dis  2012
 invasive Fungal dis  2012
 invasive Fungal dis  2012
 invasive Fungal dis  2012

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invasive Fungal dis 2012

  • 1. ‫اللهم إني أستغفرك لكل ذنب‬ ‫.. خطوت إليه برجلي  .. أو مددت‬ ‫إليه يدي‬ ‫.. أو تأملته ببصري .. أو أصغيت إليه‬ ‫إلي‬ ‫بأذني‬
  • 2.
  • 3.
  • 4. Invasive Fungal Infections Management Updates Ahmed Saad MD. FACP. Ass Prof .Cairo university
  • 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.
  • 11. Epidemiology of Invasive Mycosis Pfaller & Diekema, 2007, Clin. Micro. Rev. 20:133-163
  • 12. Review • Different types of Invasive fungi • Changing epidemiology • Clinical picture • Risk factors • Diagnosis • Treatment & prophylaxis
  • 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.
  • 16. Invasive Aspergillose : Mortality Denning DW Paterson DL, Singh Lin QY Clin Infect N Clin Infect Dis Medicine Dis till 1995 1987-1997 1995-1999 Bone marrow 90 % 92 % 86.7 % AIDS/HIV 81 % - 85.7 % Liver transplant. 93 % 87 % 67.6 % Kidney transplant. 70 % 75 % 62.5 % Lung Transplant. 77 % 55 % 62.5 % Heart transplant. 50 % 78 % 43.6 % Pancreas 100 % - transplant
  • 17.
  • 18. Review • Different types of Invasive fungi • Our local data • Clinical picture • Risk factors • Diagnosis • Treatment & prophylaxis
  • 19. Our local data For Candida fungogram for Candida Isolates (In-patient) March 2011- June 2012 Candida Candida Candida Candica Candica Candida Candida Albicans Tropicalis Glabrata Parapsilosis Krusei Lusitaniae Dubliniensis No. of Isolates 73 23 7 5 2 1 5 Caspufugen 100 100 100 100 100 100 100 Amphotericin B 96 98 100 100 100 100 100 Flucytosine 97 100 100 100 50 100 66 Fluconazole 97 89 66 100 0 100 100 Voriconazole 100 100 66 100 100 100 100 Caspofungin 100 100 100 100 100 100 100
  • 20. Dr Erfan & Bagedo Hospital Data 2010 sample Candida Candida Candida Candida Candida Parapsil Albicans Tropicalis Glabrata Krusie iosis Blood 8 6 6 1 1 BAL 9 1 Sputum 4 Urine 1 1 • Aspergillus +ve in 3 sputum samples & 24 environmental
  • 21. No of Candidal isolates (115) in 18 monthes Candida albicans 63.5% Candida dublinensis 4.3% Candida krusei 1.7% Candida parapsilosis 4.3% Candida glabrata 6.1% Candida tropicalis 20.0%
  • 22. Am 0 20 40 60 80 100 120 ph o te ric in B Fl uc yt o si ne Fl uc on a zo le Vo r ic on az ol e C as po fu ng Candida Albicans in
  • 23. 0 Am 20 40 60 80 100 120 ph ot er ic i n B Fl uc yt os in e Fl u co na zo le Vo ric on az ol e Ca sp of u ng in Candida tropicalis
  • 24. Am 0 20 40 60 80 100 120 ph o te ric in B Fl uc yt os in e Fl uc on az ol e Vo ric on az ol e C as po fu ng in Candida Glabrata
  • 25. Am 0 20 40 60 80 100 120 ph ot er ic in B Fl uc yt o si ne Fl uc on az ol e Vo ric on az ol e C as po fu ng in Candida parapsislosis
  • 26. Am 20 40 60 80 0 100 120 ph ot er ici n B Fl uc yt os in e Fl uc on az ol e Vo ric on az ol e Ca sp of un gi n Candida Krusei
  • 27. Am 0 20 40 60 80 100 120 ph o te ri c in B Fl uc yt os in e Fl uc on az o le Vo ric on az o le C as po fu ng in Candida Dubliniensis
  • 28. Review • Different types of Invasive fungi • Epidemiology • Risk factors • Clinical picture • Diagnosis • Treatment & prophylaxis
  • 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
  • 36. Review • Different types of Invasive fungi • Epidemiology • Clinical picture • Risk factors • Diagnosis • Treatment & prophylaxis
  • 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
  • 39. Candida: Hepatosplenic candidiasis FEVER FEVER ALKALINE PHOSPHATASE ALKALINE PHOSPHATASE NEUTROPHILS NEUTROPHILS DISSEMINATION MICROCOLONIES ‘BULLS EYE’ DISSEMINATION MICROCOLONIES ‘BULLS EYE’
  • 40.
  • 42. Esophageal Candidiasis Baseline After caspofungin Courtesy of John Rex, MD
  • 45.
  • 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
  • 47. Timeframes IPA days/1-4 weeks Subacute IPA weeks/2-3 months CCPA months/years Aspergilloma months/years
  • 48. Aspergilloma Patient RT December 2002 Cough (mild) & tired Wythenshawe Hospital
  • 49. Aspergilloma – may be mobile in the cavity Upright Prone Severo on www.aspergillus.man.ac.uk
  • 50. Aspergilloma Severo on www.aspergillus.man.ac.uk
  • 54. Zygomycosis in SOT • Rhinocerebral form • 76% diabetes and corticosteroids • 56% mortality
  • 55. Review • Different types of Invasive fungi • Epidemiology • Clinical picture • Risk factors • Diagnosis • Treatment & prophylaxis
  • 56.
  • 57. Invasive aspergillosis diagnosis • Radiology: chest X-ray and CT • Microbiology – Respiratory secretions: BAL/biopsy • Direct microscopy • culture • PCR Ergin et al. Transplant International 2003; 16: 280-286
  • 58. IA in solid-organ transplant recipients
  • 59. Diagnosis of Pulmonary Aspergillosis •Pulmonary Infection – Peripheral infiltrates – "halo" sign on chest CT scan – Broncho-alveolar lavage ++ • Direct exam, Culture, Ag, PCR Halo sign ??
  • 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 .
  • 62. Review • Different types of Invasive fungi • Epidemiology • Clinical picture • Risk factors • Diagnosis • Treatment & prophylaxis
  • 64.
  • 65. Cell Membrane Active Antifungals Cell membrane • Polyene antibiotics - Amphotericin B, lipid formulations • Azole antifungals - Ketoconazole - Itraconazole - Fluconazole - Voriconazole -Posaconazole
  • 66. DNA/RNA synthesis Inhibitors Cell membrane • Polyene antibiotics • Azole antifungals DNA/RNA synthesis • Pyrimidine analogues - Flucytosine Cell wall • Echinocandins -Caspofungin acetate (Cancidas)
  • 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.
  • 69. Lipid Amphotericin B Formulations Abelcet ® ABLC Ambisome ® L-AMB Amphotec ABCD ® Ribbon-like particles Disk-like particles Unilaminar liposome Carrier lipids: DMPC, Carrier lipids: Cholesteryl Carrier lipids: HSPC, DMPG sulfate DSPG, cholesterol(1:9) (1:1) Particle size (µm): 0.12- Particle size (µm) : 0.08 Particle size (µm): 1.6- 0.14 11 DMPC-Dimyristoyl phospitidylcholineHSPC-Hydrogenated soy phosphatidylcholine DMPG- Dimyristoyl phospitidylcglycerol DSPG-Distearoyl phosphitidylcholine
  • 70. Lipid AMB Formulations- Summary • Efficacy – Lipid formulation > AMB-deoxy • Nephrotoxicity – L-AMB < ABLC < ABCD << AMB-deoxy • Infusion related toxicity – L-AMB < ABLC < ABCD < AMB-deoxy • Product cost (AWP) – L-AMB > ABLC > ABCD > AMB-deoxy
  • 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
  • 72. Azole Antifungals for Systemic Infections • Itraconazole (Sporanox) • Fluconazole (Diflucan) Triazoles (3N) • Voriconazole (Vfend) “2nd generation triazole” Fluconazole Ketoconazole
  • 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
  • 80.
  • 81.
  • 82.
  • 83.
  • 84.
  • 85.
  • 86. Review • Different types of Invasive fungi • Changing epidemiology • Risk factors • Clinical picture • Diagnosis • Treatment &prophylaxis • Updated guidelines
  • 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)