Antimikrobna osetljivost izolovanih uzročnika i empirijsko lečenje peritonitisa

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Antimikrobna osetljivost izolovanih uzročnika i empirijsko lečenje peritonitisa Prof.dr Đoko Maksid Klinika za nefrologiju Medicinski fakultet VMA Univerzitet odbrane u Beogradu

ISPD PERITONITIS RECOMMENDATIONS: 2016 UPDATE ON PREVENTION AND TREATMENT ISPD GUIDELINES/RECOMMENDATIONS Recommendations under the auspices of the International Society for Peritoneal Dialysis (ISPD) were first published in 1983 and revised in 1993, 1996, 2000, 2005, and 2010 Philip Kam-Tao Li,1 Cheuk Chun Szeto,1 Beth Piraino,2 Javier de Arteaga,3 Stanley Fan,4 Ana E. Figueiredo,5 Douglas N. Fish,6 Eric Goffin,7 Yong-Lim Kim,8 William Salzer,9 Dirk G. Struijk,10 Isaac Teitelbaum,11 and David W. Johnson12

Klinička prezentacija i dijagnoza peritonitisa Dijagnostički kriterijumi peritonitisa (abdominalni bol i / ili zamućen dijalizni efluent,>100 ćelijskih elemenata po μl, sa >50% PMn,pozitivan nalaz kulture) (1c) PD efluent testirati u svim situacijama kada sumnjamo na peritonitis ( broj delija, diferencijalna formula, bojenje po Gramu, kultura) (1C). Empirijsku terapiju peritonitisa započeti što pre kod svih bolesnika koji ispunjavaju najmanje dva dijagnostička kriterijuma

Diferencijalna dijagnoza zamudenog efluenta Culture-positive infectious peritonitis Infectious peritonitis with sterile cultures Chemical peritonitis Calcium channel blockers Eosinophilia of the effluent Hemoperitoneum Malignancy (rare) Chylous effluent (rare) Specimen taken from dry abdomen

Kontinuirano poboljšanje kvaliteta Preporučuje se da svaki Centar ima progrom KPK u cilju smanjenja stope peritonitisa (1C). Sugeriše se multidisciplinarni pristup (2C). Monitoring sveukupne stope peritonitisa, učestalost specifičnih uzročnika, procenat bolesnika koji su peritonitis free i antimikrobnu osteljivost izolovanih uzročnika pratiti na godišnjem nivou (1C) Philip Kam-Tao Li, Cheuk Chun Szeto, Beth Piraino et al. Perit Dial Int 2016.

ISPD peritonitis recommendation 2016. Inicijalno vođenje peritonitisa.

Poruka Broj Le u efluentu zavisi od dužine dijalizne izmene. U dijagnostici peritonitisa kod APD bolesnika bolje je koristiti procenat PMN nego ukupan broj Le (>50% PMN ima vedi težinu, čak i u slučajevima kada je absolutni broj Le < 100/μL).

Nove tehnike u ranoj dijagnozi peritonitisa We suggest that there is insufficient evidence to currently support the use of novel techniques for the diagnosis of peritonitis (2D). Philip Kam-Tao Li, Cheuk Chun Szeto Beth Piraino et al. Perit Dial Int 2016;36:481-508

Identifikacija uzročnika peritonitisa Uzimanje 5-10ml uzoraka dijaliznog efluenta u aerobne i anaerobne bočice za hemokulturu (1C). Načini uzrokovanje i kultivisanje dijaliznog efluenta zaslužuje reviziju i poboljšanje tehnike ako je >15% epizoda peritonitisa kultura negativno (2C). BacT/Alert (detekcija uzročnika u 75% slučajeva za < 72h) * Centrifugiranje uzorka, resuspenzija sa supenatantom, inokulacija u bočice za hemokulturu

Idealan empirijski protokol Inicijalna empirijska terapija je uspešna ako se kliničko poboljšanje postigne u prvih 72 h lečenja, uz smanjenje broja leukocita u efluentu za 50% Ako nema kliničkog poboljšanja u prvih 72h, modifikovati terapiju, ili razmotriti vadjenje peritoneumskog katetera nakon 5 dana lečenja Vas S, Barggman J, Oreopoulos D. Perit Dial Int 1997;17:87-89.

Empirijska terapija peritonitisa Brzo delujudi, visoko efikasan tretman, bez neželjenih efekata Racionalna upotreba antibiotika u cilju sprečavanja nastanka multirezistentnih sojeva Farmakoekonomske uštede Biesen V, Veys N, Vanholder R. Nephrol Dial Transplant 2002;17:1878-82.

Značaj obuke bolesnika za kudno započinjanje lečenja peritonitisa Bolesnici koji žive daleko od matičnog Centra 24 h veza sa Centrom Sprovedena obuka za I.P aplikaciju lekova i uzimanje i čuvanje uzorka zamudene dijalizne tečnosti Posedovanje u kudnim uslovima jednokratnih doza antibiotika za empirijsku terapiju Stroga kontrola i predupređenje potencijalnih problema

Empirijska selekcija antibiotika Preporučuje se da se empirijska antibiotska terapija započne čim pre, nakon adekvatno uzetih uzoraka dijaliznog efluent za mikrobiološku dijagnozu peritonitisa(1c). Preporučuje se da empirijska antibiotska terapija treba da bude Centar specifična i da pokriva gram-pozitivne i gram-negativne organizme (1C). Preporučuje se upotreba Vankomicina ili cefalosporina I generacije za gram-pozitivne uzročnike, odnosno cefalosporina III generacije ili aminoglikozida za gramnegativne uzročnike (1B). Philip Kam-Tao Li, Cheuk Chun Szeto Beth Piraino et al. Perit Dial Int 2016;36:481-508

Doziranje antibiotika Preporučuje se IP primena antibiotika, izuzev slučajeva kada se pacijenti prezentuju sa sistemskom sepsom (1B). Sugeriše se intermitentno dnevno doziranje aminogliklozida (2B). Prolongirana primena aminoglikozida se ne preporučuje (1C). Sugeriše se intermitentna IP primena vankomicina, serumske koncentracije održavati na nivou > 15μg/mL (2C). Sugeriše se IP primena cefalosporina kontinuirano ili intermitentno (2C).

Farmakokinetika i farmakodinamika Vankomicin Bakteriostatik Jednokratna IP primena u dozi 15-30mg/kg/tt na 5-7dana Precipitira u alkalnom miljeu Subterapijske koncentracije dovode do relapsa i rezistencije Cefazolin Baktericidan 1,5g IP cefazolina ima serumski poluživot>30h Serumske koncentracije 52,4mg/dl nakon 24h od aplikacije Pojedini sojevi streptokoka i korinebakterija rezistentni na cefalosporine IP koncentracije daleko iznad MIK vrednosti

Izbor antibiotika za Gram negativne bakterije Aminoglikozidi(gentamicin, netilmicin), Ceftazidim, Cefepime, Karbapenemi

U randomizovanim studijama IP primena netilmicina i ceftazidima pokazala je podjednaku efikasnost u empirijskim protokolima lečenja. Vremenski krade terapije aminoglikozidima nisu značajno uticale na gubitak preostale RRF. Dodatno, monoterapija imipenem/cilastatinom pokzala se podjednako efikasnom kao terapija cefazolin plus ceftazidim. Terapija cefepimom pokazala je podjednaku efikasnost kao terapija Vankomicin plus netilmicin. Philip Kam-Tao Li, Cheuk Chun Szeto Beth Piraino et al. Perit Dial Int 2016;36:481-508

Osnovni podaci o bolesnicima Broj ispitanika 156 Starost (godine) (X SD) 59.69 17.50 Pol (%) muškarci 74 (47,44%) Žene 82 (52,56%) Dužina dijaliznog staža (meseci) (X SD) 37.46 25.20 Ukupan broj epizoda peritonitisa 123 Prosečan br. epizoda peritonitis/pacijent 0.79 Broj epizoda peritonitis/meseci lečenja 1/29.91

Zastupljenost šećerne bolesti Diabetes mellitus bez diabetes mellitusa

Modaliteti lečenja INICIJALNI MODALITET L EČENJA BROJ PACIJENATA PROCENAT (%) Inicijalno CAPD 101 82,11 Prethodno HD 20 16,26 Prethodno Tx 2 1,63

Tipovi peritonitisa TIP Broj Procenat (%) IZOLOVANI 99 80,49 RELAPS 13 10,57 REKURENTNI 4 3,25 PONOVLJENI 4 3,25 REFRAKTARNI 3 2,44

Infekcija izlaznog mesta i tunel infekcija infekcija izlaznog mesta i tunel bez infekcije

Uzročnici peritonitisa (Bojenje po Gramu)

UZROČNIK broj % Gram pozitivni 80 (65.02%) Koagulaza negativan stafilokok 51 (63,75%) Staphylococcus aureus 9 (11,25%) Streptococcus viridans 9 (11,25%) Enterococcus 6 (7,5%) Korinemorfni bacili 5 (6,25%) Gram negativni 21 (17,01%) E.coli 7 (33,33%) Acinetobacter Klebsiella 6 (28,57%) 3 (14,30%) Stenotrophomonas maltophilia 1 (4,76%) Enterobacter aerogenes Pseudomonas 1 (4,76%) 1 (4,76%) Proteus mirabilis 1 (4,76%) Morganella 1 (4,76%) Nije izolovan uzročnik 16 (13,09%) Gljivice 2 (1.63%) Candida 2 (100%) Mešoviti (G poz. i G neg.) 4 (3,25%) Klebsiella + Koagulaza negativan stafilokok 1 (25%) Koagulaza negativan stafilokok + Acinetobacter 1 (25%) Enterococcus faec.+ Pseudomonas 1 (25%) E. colli + Enterococcus 1 (25%)

Početak lečenja peritonitisa u odnosu na pojavu simptoma Vreme od prvih simptoma peritonitisa do početka lečenja Broj % do 6 sati 34 (27,64%) od 6-12 sati 37(30,08%) od 12-24 sata 29 (23,58%) preko 24 sata 13 (10,57%)

Antibiotici korišćeni u empirijskoj terapiji Grupa lekova Antibiotik Fabrički naziv Broj primena (%) Cefalosporin I generacije + Cefalosporin III generacije Vankomicin + aminoglikozidi Vankomicin + Cefalosporin III generacije Cefalosporin I generacije + aminoglikozidi Galacef + Forcas ili Longacef, Cefobid Vankogal + Amikacin ili Netromycin, Gentamycin Vankogal + Forcas ili Longacef, Cefobid Galacef + Amikacin ili Netromycin 42 (34,14%) 10 (8,13%) 15 (12,20%) 45 (36,59%) Cefalosporin III generacije + aminoglikozidi Cefalosporin I generacije + hinolon Forcas ili Longacef +Amikacin ili Netromycin, Gentamycin 8 (6,50%) Galacef +Ciprocinal 3 (2,44%)

Rezistencija na antibiotike Od ukupno 51 epizode prouzrokovane koagulaza negativnim stafilokokom u 43 slučaja (84,33%) radilo se o soju rezistentnom na peniciline, u 24 epizode (47,06%) radilo se o meticilin rezistentnoj formi, a u jednom slučaju (staph. haemoliticus) o vankomicin rezistentnoj formi (bolesnica lečena linezolidom). Od 9 epizoda uzrokovanih Staphylococcus aureus-om, u 4 (44,44%) slučaja se radilo o meticilin rezistentnoj(mrsa) formi, a u jednom slučaju o vankomicin rezistentnoj formi (VRSA). Enterococcus je prouzrokovao upalu u 6 slučajeva pri čemu se u 2 (33%) nalaza evidentira rezistencija na vankomicin (VRE), dok se u preostale četiri epizode (67%) radilo o ampicilin rezistentnim formama (ARE).

Ishod lečenja peritonitisa ISHOD LEČENJA Broj (%) kompletna rezolucija 105 (85.37%) transfer na hemodijalizu 15 (12.19%) Umrli 3 (2,44%)