目的总结肝尾状叶海绵状血管瘤手术切除的指征及技巧。方法对我科2005年9月至2010年9月期间开展的8例肝尾状叶海绵状血管瘤切除病例的临床资料进行分析。结果全组患者均在无血流阻断下顺利完成手术，无手术死亡。术中出血量为1 000～5 000 ml，（2 500±800） ml; 手术时间为3～6 h，(4.2±0.8） h。1例肝硬变患者术后1 d即出现腹水，经积极治疗后得以控制。3例患者术后1周发现右侧胸腔积液，经1～2次胸腔穿刺抽液后治愈。1例患者术后1周出现不全性肠梗阻，经保守治疗1周后痊愈。术后应用B超每半年复查肝脏情况，随访0.5～5年，（2.5±1.2）年，1例失访，1例患者死于心肌梗死，余均存活，仍在随访中。所有病例均未复发。结论肝尾状叶海绵状血管瘤手术应充分显露、精准操作，彻底切除肿瘤，避免大出血和空气栓塞，减少和防止残肝的热缺血再灌注损伤。
Objective To determine the role of serum cystatin C in evaluating the severity and predicting in-hospital mortality in patients with community-acquired pneumonia (CAP). Methods The clinical data of 176 patients with CAP treated between January 2015 and October 2016 were collected in a retrospective way. The CURB-65 score was used to assess the severity. The serum levels of cystatin C and C-reactive protein (CRP) on admission were measured. The correlations between cystatin C and CURB-65 score and between cystatin C and CRP were calculated. Receiver operating characteristic curve was used to determine the ability of cystatin C in predicting in-hospital mortality. Results The serum level of cystatin C increased with the increasing CURB-65 score (P<0.001). The serum level of cystatin C was correlated positively with CRP level (rs=0.190, P<0.011). There were 22 patients died in hospital, the mean serum cystatin C level of non-survivor was significantly higher than that of survivors [(1.51±0.56)vs. (1.02±0.29) mg/L, P<0.001]. At a cut-off 1.18 mg/L, the sensitivity and specificity of cystatin C in predicting in-hospital mortality were 68.18% and 81.17%, respectively. The area under the receiver operating characteristic curve was 0.793. The combination of cystatin C and CRP increased the predictive accuracy for in-hospital mortality. Conclusion Cystatin C level increases with the increaseing severity of CAP, and it may be a clinical biomarker to evaluate the severity and prognosis of patients with CAP.