证据评分
肝脓肿的成功消退：有中等质量的证据表明，对于治疗 ＜ 5 cm 单纯性肝脓肿，间断针刺抽吸与连续导管引流的效果可能相同。[35]Yu SC, Ho SS, Lau WY, et al. Treatment of pyogenic liver abscess: prospective randomized comparison of catheter drainage and needle aspiration. Hepatology. 2004;39:932-938.http://onlinelibrary.wiley.com/doi/10.1002/hep.20133/fullhttp://www.ncbi.nlm.nih.gov/pubmed/15057896?tool=bestpractice.com[36]Zerem E, Hadzic A. Sonographically guided percutaneous catheter drainage versus needle aspiration in the management of pyogenic liver abscess. AJR Am J Roentgenol. 2007;189:W138-W142.http://www.ajronline.org/doi/full/10.2214/AJR.07.2173http://www.ncbi.nlm.nih.gov/pubmed/17715080?tool=bestpractice.com
系统评价或者受试者＞200名的随机对照临床试验（RCT）。
肝脓肿的成功消退：有中等质量的证据表明，对于治疗 ＜ 5 cm 单纯性肝脓肿，间断针刺抽吸与连续导管引流的效果可能相同。[35]Yu SC, Ho SS, Lau WY, et al. Treatment of pyogenic liver abscess: prospective randomized comparison of catheter drainage and needle aspiration. Hepatology. 2004;39:932-938.http://onlinelibrary.wiley.com/doi/10.1002/hep.20133/fullhttp://www.ncbi.nlm.nih.gov/pubmed/15057896?tool=bestpractice.com[36]Zerem E, Hadzic A. Sonographically guided percutaneous catheter drainage versus needle aspiration in the management of pyogenic liver abscess. AJR Am J Roentgenol. 2007;189:W138-W142.http://www.ajronline.org/doi/full/10.2214/AJR.07.2173http://www.ncbi.nlm.nih.gov/pubmed/17715080?tool=bestpractice.com
