Brook Itzhak, Frazier Edith H
Department of Infectious Diseases, Naval Hospital, Bethesda, MD, USA.
J Med Microbiol. 2000 Sep;49(9):827-830. doi: 10.1099/0022-1317-49-9-827.
The aerobic and anaerobic microbiology of intra-abdominal infections associated with diverticulitis was studied in 110 specimens from the peritoneal cavity after intestinal perforation and in 22 specimens from abdominal abscesses. Anaerobic bacteria only were isolated from 17 (15%) of the peritoneal specimens, aerobic bacteria only from 12 (11%) and mixed aerobic and anaerobic flora from 81 (74%). A total of 339 bacterial isolates was detected in peritoneal cultures (3.1 per specimen), comprising 155 aerobes (1.4 per specimen) and 184 anaerobes (1.7 per specimen). Anaerobic bacteria only were isolated in 4 (18%) abscesses, aerobes alone in one (5%) and mixed aerobic and anaerobic flora in 17 (77%). A total of 72 bacterial isolates (3.3 per specimen) was detected in abdominal abscesses - 35 aerobes (1.6 per specimen) and 37 aerobes (1.7 per specimen). The predominant aerobic and facultative bacteria in abdominal infections were Escherichia coli and Streptococcus spp. The most frequently isolated anaerobes were Bacteroides spp. (B. fragilis group), Peptostreptococcus, Clostridium and Fusobacterium spp.
对110份肠穿孔后取自腹腔的标本以及22份取自腹部脓肿的标本，研究了与憩室炎相关的腹腔内感染的需氧和厌氧微生物学。仅从17份（15%）腹腔标本中分离出厌氧菌，仅从12份（11%）中分离出需氧菌，从81份（74%）中分离出需氧菌和厌氧菌的混合菌群。在腹腔培养物中总共检测到339株细菌分离株（每份标本3.1株），包括155株需氧菌（每份标本1.4株）和184株厌氧菌（每份标本1.7株）。仅在4份（18%）脓肿中分离出厌氧菌，仅在1份（5%）中分离出需氧菌，在17份（77%）中分离出需氧菌和厌氧菌的混合菌群。在腹部脓肿中总共检测到72株细菌分离株（每份标本3.3株）——35株需氧菌（每份标本1.6株）和37株厌氧菌（每份标本1.7株）。腹腔感染中主要的需氧和兼性细菌是大肠杆菌和链球菌属。最常分离出的厌氧菌是拟杆菌属（脆弱拟杆菌群）、消化链球菌、梭菌属和梭杆菌属。
