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Perché è Difficile Diagnosticare e Trattare l’Aspergillosi Invasiva?. TOPICS. Behavior of Aspergillus - characteristics Principles of management - detection - treatment when and what. TOPICS. Behavior of Aspergillus - characteristics Principles of management
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Perché è Difficile Diagnosticare e Trattare l’Aspergillosi Invasiva?
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
bacteria viruses fungi
EUKARYOTIC ORGANISM!! MRS. FUNGUS cell membrane -ergosterol cell wall cholesterol
ASPERGILLUS 1729 FIRST DESCRIPTION “brush-shapedstructure” MICHELI catholicpriest
ASPERGILLUS IS EVERYWHERE environment moss soil decaying material
DEFENSE SYSTEMS T-cell function Humoral immunity Commensal flora Granulocytes Mucosa / Skin removes viruses, fungi and tumor cells antibody production micro-organisms in the gut against bacteria – pus formation border control of our body
DEFENSE SYSTEMS T-cell function Humoral immunity Commensal flora Granulocytes Mucosa / Skin day 40 100
T-cell function Humoral immunity Granulocytes Commensal flora Mucosa COURSE OF DEFENSE SYSTEMS ASPERGILLUS INFECTIONS / Skin day 40 100
time INFECTIOUS AGENTS IN RELATION TO THE COURSE OF DEFENSE SYSTEMSGarcia-Vidal et al. Clin Infect Dis 2008; 47:1041-1050 ASPERGILLUS
immuno- suppression epidemiologic exposure BASIC RISK FACTORS FOR FUNGAL INFECTIONS Adapted from RH Rubin, Boston
money shops OPPORTUNISTS!
TRENDS INCIDENCE INVASIVE FUNGAL INFECTIONSPagano et al. Haematologica 2006; 91:1068-1075 80 70 ASPERGILLUS 60 50 number of cases 40 30 20 10 0 87-88 92-93 97-98 2002-2003
INVASIVE FUNGAL DISEASE AFTER NON-MYELOABLATIVE ALLO-BMTFukuda et al. Blood 2003; 102:827-833 22% non-relapse mortality 39% mould-related n = 163 9% mould-related deaths
MORTALITY OF INVASIVE ASPERGILLOSIS • Variation due to: • timing of intervention • timely diagnosis • patients’ defense system • treatment given
97% 42% MORTALITY OF INVASIVE ASPERGILLOSIS • Variation due to: • timing of intervention • timely diagnosis • patients’ defense system • treatment given
GROWTH OF ASPERGILLUS 1-2 cm per 24 hours
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
spores hyphae spore WELCOME TO MYCOLOGY ASPERGILLUS
97% 42% EVOLUTION OF AN INFECTION AND MORTALITY TRADITIONAL DIAGNOSIS FUNGAL BURDEN
97% diagnostics 42% AWAY FROM EMPIRISM? TRADITIONAL DIAGNOSIS NEW TOOLS FUNGAL BURDEN
CT culture histology serology FIRST TEST POSITIVE FOR ASPERGILLOSIS IN HEMATOLOGICAL MALIGNANCIESFlorent et al. J Infect Dis 2006;193:741-747 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DAYS 55 patients
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • whenand what
antibacterials Empiricalanti- fungals ADMINISTRATION OF ANTIMICROBIALS IN RELATION TO THE COURSE OF NEUTROPENIA 100% 75% 50% >1000 1000 GRANULOCYTES 500 <100 0 10 20 30 days
Aspergillus antigen infiltrate Peter Donnelly & Ben dePauw ESTIMATING TIME FOR INTERVENTION • Persisting fever + • very high risk • or • a suggestive symptom • or • a suspected sign • or • any positive test day 1 5 7 12 // 28 > 42
BRAZILIAN: -no defense -intuitive attack TACTICS ITALIAN: -strong defense -efficient attack
TOPICS • Behavior of Aspergillus • -characteristics • Principles of management • -detection • -treatment • when and what
isavuconazole anidulafungin micafungin caspofungin posaconazole voriconazole Adapted from Rex & Edwards, 1997 AmBisome Amphocil Abelcet itraconazole fluconazole terbinafine ketoconazole miconazole 5-flucytosine Amphotericin B Nystatin Griseofulvin 1960 1970 1980 1990 2000 PACE OF DEVELOPMENT OF NEW ANTIFUNGAL AGENTS 1950
EORTC EORTC IFICG IFICG % response 60 50 40 30 25/51 (49%) 42/133 (32%) 76/144 (53%) 53/107 (50%) 20 10 0 RESULTS FIRST LINE TREATMENT OFINVASIVE ASPERGILLOSISHerbrecht et al N Engl J Med 2002; 347:408-415 Cornely et al. Clin Infect Dis 2007; 44:1289-1297Viscoli et al. J Chemother 2007; 19, suppl 5:36 Caspofungin Lipo-AmB Ampho B Voriconazole
OUTCOME OF ASPERGILLOSIS IN RELATION TO INITIAL ANTIFUNGAL THERAPYNivoix, Y et al. Clin Infect Dis 2008; 47:1176-1184 n = 289 n = 51 n = 127 n = 62 SURVIVAL 70% P=0.016 47%
OUTCOME OF THERAPY FOR ASPERGILLOSIS ARISING DURING AML IN DAILY PRACTICEPagano et al. SEIFEM 2008 140 cases First line therapy 40 30 20 10 0 28% 27% 21% 16% N° of patients treated voriconazole caspofungin combo L-AmB
OUTCOME OF THERAPY FOR ASPERGILLOSIS ARISING DURING AML IN DAILY PRACTICEPagano et al. SEIFEM 2008 140 cases Aspergillosis attributable mortality 40 30 20 10 0 N° of patients treated 18% 24% 32% 23% voriconazole caspofungin combo L-AmB
low dose corticosteroids high dose CORTICOSTEROIDS AND SURVIVAL OF ASPERGILLOSIS IN HSCTCordonnier et al. Clin Infect Dis 2006;42:955-963 51 patients with aspergillosis 41 allo HSCT 10 auto S U R V I V A L
RELATION OUTCOME OF FUNGAL INFECTIONSAND GRANULOCYTE COUNT n = 63 DECREASING GRANULOCYTES Response 36% INCREASING GRANULOCYTES Response 86%
RELATION OUTCOME OF FUNGAL INFECTIONSAND STATE OF UNDERLYING DISEASE SUCCESSFUL OUTCOME REMISSION 61% n = 63 REFRACTORY UNDERLYING DISEASE 8%