Objective To investigate the drug resistance of Enterobacteriaceae bacteria which cause liver abscess, and to guide the application of antibiotics. Methods The patients with liver abscess who were hospitalized in our hospital from January 2014 to December 2017 and were found to have Enterobacteriaceae bacteria by isolation were enrolled as research subjects. Their clinical data, laboratory examination results, drug resistance data, treatment method, and outcomes were analyzed. Results Among the 53 patients, 28 ( 52. 8%) had gallbladder and biliary diseases or a surgical history, 20 ( 37. 7%) had hypertension, and 18 ( 34. 0%) had diabetes; as for clinical manifestations, 51 ( 96. 2%) had pyrexia, 33 ( 62. 3%) had liver pain or gastrointestinal symptoms, and 6 ( 11. 3%) had septic shock. Among these patients, 31 ( 58. 5%) had a leukocyte count of > 10 × 109/L, 37 ( 69. 8%) had an increase in neutrophil count, 50 ( 94. 3%) had an increase in C-reactive protein, 32 ( 60. 4%) had an increase in alanine aminotransferase, and 22 ( 41. 5%) had an increase in aspartate aminotransferase; among the 19 patients who underwent procalcitonin ( PCT) measurement, 17 ( 89. 5%) were found to have an increase in PCT. A total of 11 patients had a positive blood culture, among whom 7 ( 63. 6%) had Klebsiella pneumoniae and 4 ( 36. 4%) had Escherichia coli. Pus or bile culture identified Enterobacteriaceae bacteria strains in the 53 patients, among whom 35 ( 66. 0%) had Klebsiella pneumoniae, 12 ( 22. 6%) had Escherichia coli, 2 ( 3. 8%) had Morganella morganii subspecies, and 1 ( 1. 9%) each had Proteus penneri, Providencia rustigianii, Citrobacter freundii, and Proteus mirabilis. Among the 35 patients with Klebsiella pneumoniae, 2 had extended-spectrum beta-lactamase ( ESBL) -producing Klebsiella pneumoniae, and among the 12 patients with Escherichia coli, 9 had ESBL-producing Escherichia coli; Klebsiella pneumoniae strains were sensitive to common antibiotics, while Escherichia coli strains had high drug resistance rates to second-and third-generation cephalosporins, quinolones, and aminoglycosides. All isolates were highly sensitive to carbapenems. Conclusion Enterobacteriaceae bacteria causing liver abscess has a low ESBL-positive rate. Third-generation cephalosporins and antibiotics containing β-lactamase inhibitors are major regimens for initial empiric therapy.
而BE在理论上可能降低PD术后DGE的发生,故近些年部分研究者[1-4, 7]将BE引入PD中。有研究[1-2, 7, 20]发现,BE方式可以降低PD术后DGE、碱性反流性胃炎或边缘性溃疡的发生。部分研究[7, 21]甚至报道其降低了胰瘘的发生率。在Hochwald等[7]的研究中,BE组在DGE总体发生率、尽早拔除胃管、尽早进食、尽早出院等方面与非BE组有统计学差异,而临床相关的DGE(B级+C级)差异更加明显(7% vs 31%,P<0.01)。Xu等[2]研究发现,BE组DGE发生率显著降低(6.7% vs 26.87%,P<0.001),且多因素分析显示BE是唯一的独立危险因素;同时BE组有着更低的临床胰瘘发生率(P<0.001)。Meng等[1]研究显示,胰腺残端连续缝合加BE能显著降低DGE(P<0.01)及临床相关PF发生率(P<0.05),但是该实验未能明确BE在结果中的具体作用,亦有可能是连续缝合降低了胰瘘的发生进而降低DGE的发生。部分循证学研究[22]同样支持BE可降低DGE发生率的观点。但是不同研究之间在重建消化道距离(BE口与胃肠吻合口)和BE吻合口径上不一致,并在术后治疗和护理方案上均存在差[1-4, 7],部分研究[3-4]结果并不支持BE可以降低DGE发生率的观点。
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