title: [Bacteremia caused by Bacteroides. An analysis of 50 episodes].
abstract: During the 32 months between October 1984 and May 1987 there were 72,800 admissions in our center; 31,523 blood cultures were undertaken and in 3,831 of them (11.5%) at least one significant organism was recovered; 6.7% of blood cultures yielded anaerobic bacteria, and 3.1% Bacteroides spp. In the 1,478 instances of bacteremia recorded during that period, the relative frequencies of bacteremia by anaerobic bacteria and by Bacteroides were 8.6% and 3.9%, respectively. In overall 50 Bacteroides bacteremias (47 due to Bacteroides fragilis and 3 to Bacteroides spp), 32 (64%) were hospital acquired and 14 (28%) postsurgical. Their most common source was the abdominal cavity (25, 50%), followed by the skin and soft tissues (7, 14%), feminine pelvis (4, 8%), miscellaneous (8, 16%), and unknown (7, 14%). Fifteen bacteremias (30%) were polymicrobial, 20 (40%) were associated with septic shock, and 15 (30%) with renal failure. Overall mortality rate was 52%, and that directly attributable to bacteremia was 32%. Poor prognostic predictors included the source from a perforated viscus, septic shock, renal failure or gastrointestinal hemorrhage, and the absence of adequate antimicrobial therapy.
authors.forename: J
authors.initials: J
authors.lastname: Berenguer
authors.forename: J A
authors.initials: JA
authors.lastname: Cuadros
authors.forename: C
authors.initials: C
authors.lastname: Betriu
authors.forename: P
authors.initials: P
authors.lastname: Muñoz
authors.forename: J J
authors.initials: JJ
authors.lastname: Moreno
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001442:Bacteroides Infections / Q000150:complications / Q000453:epidemiology* / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology; D011379:Prognosis; D018805:Sepsis / Q000150:complications / Q000453:epidemiology / Q000382:microbiology* / Q000401:mortality; D012772:Shock, Septic / Q000209:etiology; D013030:Spain / Q000453:epidemiology
vernacular_title: Bacteriemia por Bacteroides. Un análisis de 50 episodios.