Ilgenfritz F M, Jordan F T
Department of Surgery, Michigan State University, East Lansing 48823.
Arch Surg. 1988 Apr;123(4):506-8. doi: 10.1001/archsurg.1988.01400280116024.
Fifty-six patients, ranging in age from 49 to 90 years, underwent abdominal aortic aneurysmectomy and had cultures taken from the aneurysm wall and atheromatous debris to identify possible microbiological sources of future graft infection. All patients received antibiotics before and after operation. Eleven (19.6%) of 56 cultures yielded bacterial growth. The most common organism isolated was Staphylococcus epidermidis (in six of 11 patients). Thirty-seven percent of the aneurysms cultured were symptomatic (expanding or ruptured); however, this group accounted for 54% (6/11) of the positive cultures. During an average follow-up period of 24.5 months (range, four to 82 months), no early or late graft infections were documented. A literature review demonstrated the same disparity between positive cultures obtained at aneurysmectomy and subsequent low graft-infection rate.
56例年龄在49至90岁之间的患者接受了腹主动脉瘤切除术，并从动脉瘤壁和粥样斑块碎片中取样进行培养，以确定未来移植物感染可能的微生物来源。所有患者在手术前后均接受了抗生素治疗。56份培养物中有11份（19.6%）出现细菌生长。分离出的最常见微生物是表皮葡萄球菌（11例患者中有6例）。培养的动脉瘤中有37%有症状（扩大或破裂）；然而，该组占阳性培养物的54%（6/11）。在平均24.5个月（范围为4至82个月）的随访期内，未记录到早期或晚期移植物感染。文献综述表明，在动脉瘤切除术中获得的阳性培养物与随后较低的移植物感染率之间存在同样的差异。
