腹腔镜与开腹左侧肝切除术治疗肝胆管结石疗效的倾向性评分匹配比较

背景与目的:肝切除术是治疗肝胆管结石的主要手段之一.然而,腹腔镜左侧肝切除术(LLH)是否优于开腹左侧肝切除术(OLH)仍有争议.因此,本研究通过倾向性评分匹配法(PSM)比较LLH和OLH治疗肝胆管结石的临床疗效.方法:回顾性分析南昌大学第一附属医院2016年1月-2021年7月331例施行左侧肝切除术(包括左肝外叶...     

结直肠癌肝转移同期腹腔镜与开腹手术的疗效比较：倾向性评分匹配分析

目的 比较倾向性评分匹配后的结直肠癌肝转移患者同期腹腔镜手术与开腹手术的安全性及近期疗效。方法 回顾性分析2011年1月至2020年8月温州医科大学附属第一医院收治的79例行一期联合切除手术的结直肠癌肝转移（CRLM）患者的临床资料。采用倾向性评分匹配方法将开腹组患者与腔镜组进行匹配,每组纳入24例,比较两组围手术期的临床指标。结果 两组患者并发症发生率、围手术期病死率、二次手术率、术中输血率、开始流质饮食时间、腹腔引流管留置时间、术后住院时间和住院费用差异均无统计学意义（P＞0.05）。相比开腹组,腔镜组手术时间更长[（274±57）min vs（190±53）min,P＜0.001],术后肛门排气时间更短[（4（2～11）d vs 5（3～15）d,P=0.005],术后第1天白细胞计数更低 [（10.3±3.7）×109 /L vs （12.4±3.5）×109 /L,P=0.047]。结论 结直肠癌肝转移同期腹腔镜手术是安全、可行的,与开腹手术相比,具有一定的临床优势。     

腹腔镜和开腹肝切除术治疗肝内胆管结石安全性和效果的倾向性评分匹配研究

目的:比较腹腔镜和开腹肝切除术治疗肝内胆管结石的安全性和效果。方法:回顾性收集2014年1月至2020年5月在川北医学院附属医院肝胆外一科接受腹腔镜或开腹肝切除手术治疗的254例肝内胆管结石患者的临床和病理学资料。男性74例,女性180例,年龄（56±8）岁（范围：38~77岁）。其中接受腹腔镜手术162 例（腹腔镜组...     

腹腔镜左半肝切除术治疗有腹部手术史的肝胆管结石患者疗效的倾向性评分匹配分析

背景与目的:肝切除术是治疗肝胆管结石的重要方法,近年来腹腔镜肝脏切除的应用取得了长足进步.腹腔镜手术较开腹手术具有创伤小、恢复快及住院时间短等优点,但腹腔镜左半肝切除术在有腹部手术史的肝胆管结石患者中应用的临床研究较少.本研究通过回顾性分析,探讨腹腔镜左半肝切除术在有腹部手术史的肝胆管结石患者中的临床应用价值.方法:回...     

腹腔镜与开腹左半肝切除术治疗左半肝内胆管结石疗效比较

对比腹腔镜与开腹左半肝切除术对肝胆管结石(HC)患者的疗效。HC患者122例,接受腹腔镜术式的患者62例(观察组);接受开腹术式60例(对照组),比较两组手术情况以及两组术后胆瘘等有关并发症的发生情况。结果显示,观察组手术时间以及住院费用均显著高于对照组,但平均失血量以及住院时间显著少于对照组(P<0.05)。观察组经左肝管探查的比例为38.7%,显著高于对照组的16.7%;留置T管的比例为45.2%,显著低于对照组的70.0%(P<0.05)。观察组B级胆瘘发生率32.3%,显著高于对照组的15.0%(P<0.05)。结果表明,腹腔镜术式与开腹术式均可有效治疗HC,腹腔镜术式具有微创优势,但也会增加胆瘘风险,术前充分做好检查,术中操作严谨、细致,可降低胆瘘发生率。     

腹腔镜肝切除术治疗复发性肝癌的围手术期和近期疗效观察

目的 本研究基于倾向评分匹配（PSM）对比腹腔镜肝切除术（LLR）和开腹肝切除术（OLR）治疗复发性肝细胞癌（rHCC）的围手术期和近期疗效,探讨其治疗安全性、有效性和临床应用价值。方法 回顾性分析2017年1月至2021年12月在温州市人民医院接受手术治疗的49例rHCC患者,按照手术方式分为LLR组（27例）和OLR组（22例）,通过倾向性评分匹配（PSM）筛选出34例用于数据分析,比较两组的临床基本资料、围手术期结果和术后复发情况。结果 PSM前,OLR组肿瘤大小、术中出血量和输血量、术后并发症发生率、住院时间均明显高于LLR组（P<0.05）。PSM后,两组在肿瘤大小、术中输血量和术后并发症发生率方面均无统计学差异,但LLR组术中出血量和术后住院时间明显少于OLR组（P<0.05）。两组无复发生存期（RFS）差异无统计学意义（P=0.383）。结论 LLR治疗rHCC可减少术中出血量和输血量,减少并发症发生率,缩短住院时间,围手术期和近期疗效优于OLR。在严格掌握手术适应证的前提下,LLR具有良好的安全可行性。     

基于倾向性评分匹配的经脐单孔腹腔镜与传统腹腔镜手术治疗卵巢囊肿的疗效分析

目的 探讨经脐单孔腹腔镜手术治疗卵巢囊肿的疗效和安全性。方法 回顾性分析2020年1月～2021年12月我院252例腹腔镜卵巢囊肿剥除术的临床资料,其中单孔腹腔镜卵巢囊肿剥除术58例(单孔组),传统腹腔镜卵巢囊肿剥除术194例(四孔组),经倾向性评分匹配(propensity score matching, PSM),最终49对数据成功匹配,比较2组手术时间、术中出血量、术后胃肠道恢复排气时间、住院时间、术中囊肿溢出率、术后围术期疼痛评分、术后瘢痕满意度、术后并发症发生率、住院总费用及囊肿复发率等。结果 单孔组和四孔组比较,住院总费用较高[15 125.3(13 851.2,16 420.0)元vs.13 439.3(11 993.1,15 804.9)元,Z=-2.995,P=0.003],术后胃肠道恢复排气时间缩短[15.8(14.0,18.0)h vs.19.0(16.6,22.2)h,Z=-4.973,P=0.000],住院时间缩短[5(5,6)d vs.7(6,7)d,Z=-4.376,P=0.000],术后24 h疼痛评分较低[4(4,5)分vs.5(4,6)分,Z=-4....     

基于倾向性评分匹配的机器人和腹腔镜胃癌根治术的疗效分析

目的 比较达芬奇机器人系统与腹腔镜胃癌根治术的临床疗效。方法 采取回顾性队列研究方法,收集2014年1月至2021年4月期间在空军军医大学第一附属医院西京医院消化外科接受机器人或腹腔镜胃癌根治术的446例患者的资料,其中机器人手术174例（机器人手术组）,腹腔镜手术272例（腹腔镜手术组）,采用倾向性评分匹配的方法从机器人手术组与腹腔镜手术组各选取133例作为研究对象。比较2组患者的围手术期各项指标;采用Kaplan-Meier方法绘制生存曲线并计算生存率;采用Cox回归模型进行预后分析。结果 机器人手术组与腹腔镜手术组患者的基线资料比较差异无统计学意义（P>0.05）,具有可比性。2组的手术时间[（236.47±50.32）min比（230.64±44.51）min,t=1.000,P=0.318]、淋巴结清扫数目[（23.32±6.58）枚比（23.95±6.03）枚,t=–0.826,P=0.410]、首次肛门排气时间[（3.46±0.77）d比（3.38±0.75）d,t=0.882,P=0.378]和术后住院时间[（6.98±2.84）d比（6.94±3.61）d,t=...     

基于倾向评分匹配的腹腔镜与开腹肝切除治疗早期肝细胞癌的安全性及疗效比较

目的:在匹配良好的情况下比较腹腔镜肝切除和开腹肝切除治疗BCLC-A期肝细胞癌(HCC)的安全性及疗效。方法:回顾性分析2012年1月—2016年12月期间在湖南省人民医院肝脏外科313例BCLC-A期HCC行首次肝脏切除术患者的临床资料,其中102例行腹腔镜肝切除(腔镜组),211例行开腹肝切除(开腹组)。使用包括肿瘤特征和患者基本情况、切除方式等基线资料对病例进行1:1的倾向评分匹配(PSM),比较匹配后两组的相关临床指标。结果:两组患者匹配后平衡良好(ROC曲线下面积为0.584),匹配后每组患者86例。腔镜组与开腹组比较,肿瘤分化等级、微血管侵犯、切缘阳性方面无统计学差异(均P0.05),但前者的术中出血量(100 mL vs. 200 mL)、术中需要输血患者比例(4.7%vs.16.3%)、手术时间(160 min vs. 200 min)、术后住院时间(9 d vs. 12 d)、并发症发生率(5.8%vs. 16.3%)均较后者明显减少(均P0.05),两者总体生存率与无瘤生存率均无统计学差异(P=0.863、P=0.789)。结论:对于BCLC-A期HCC,腹腔镜肝切除术和开腹肝切除术的疗效相似,但前者有更好的围手术期安全性。     

年轻人与中年人肝癌肝切除的预后比较:倾向评分匹配分析

目的比较年轻人(18~40岁)和中年人(41~65岁)肝细胞癌(HCC)的临床特点和预后。方法回顾性分析东方肝胆外科医院2008年1月至2010年12月初诊为的HCC患者临床资料,纳入18~65岁行根治性肝切除术的患者,其中年轻组466例、中年组2918例。采用倾向评分匹配法(Propensity Score Matching,PSM)平衡两组间基本资料不均衡的变量并获得匹配患者,采用Log-rank检验Kaplan-Meier法进行生存分析,Cox比例风险模型预测独立危险因素。结果 PSM前,年轻组和中年组1、3、5年累计生存率分别为96.1%、73.0%、42.5%和1、3、5年累计生存率分别为96.5%、76.8%、45.2%,两组间无统计学差异(P=0.139);按1∶1 PSM后分别获得452例患者,1、3、5年累计生存率分别为96.2%、72.3%、41.4%和97.5%、80.6%、48.5%,两组间统计学差异(P=0.004)。亚组分析显示,肿瘤最大径大于3 cm的年轻人肝癌预后较差(P=0.001),而小于3 cm和中年人无差异(P0.05)。多因素分析得出年龄≤40岁、肿瘤最大径3 cm、多发肿瘤、微血管侵犯等4个因素为18~65岁肝癌患者术后死亡的独立危险因素。结论年轻人较中年人肝癌切除术后预后差,且肿瘤最大径3cm的年轻肝癌患者预后更差。     

Comparison of oncological safety between nipple sparing mastectomy and total mastectomy using propensity score matching

Introdcution

Although nipple sparing mastectomy (NSM) has attracted increased recognition as an alternative to traditional mastectomy approaches, its oncological safety is unclear. The purpose of this study was to compare the local recurrence rate between NSM and total mastectomy (TM).

Methods

Between 2003 and 2013, 121 and 557 patients with stage 0–III breast cancer underwent NSM and TM respectively. Multivariate Cox regression and propensity score models were used to compare the two groups.

Results

There was no significant difference in the five-year local recurrence rate between the NSM and TM groups (7.6% vs 4.9%, p=0.398). In multivariate analysis, NSM was not a risk factor for local recurrence (hazard ratio: 1.653, 95% confidence interval: 0.586–4.663, p=0.343). Propensity score matching found similar five-year local recurrence free survival rates between the two groups (92.3% vs 93.7%, p=0.655).

Conclusions

Our results suggest that NSM may provide oncological safety comparable with mastectomy for carefully selected patients.     

基于倾向性评分匹配法的机器人与胸腔镜辅助胸外科手术治疗肺癌的近期效果比较

目的在倾向性评分匹配配对良好的情况下,比较机器人与胸腔镜在肺癌手术治疗中的围手术期安全性与短期疗效。 方法回顾性分析2020年8月至2020年10月期间,山东大学齐鲁医院胸外科田辉教授肺外科团队因原发性肺癌行肺叶或亚肺叶切除+肺门纵隔淋巴结清扫或采样术的286例患者的临床资料。其中,130例行达芬奇机器人辅助胸外科（RATS）肺切除术,为RATS组;156例行电视胸腔镜辅助胸外科（VATS）肺切除术,为VATS组。采用倾向性评分匹配方法进行混杂因素校正,比较匹配后两组病例的围手术期结果。 结果倾向性评分匹配分析后,每组88例配对成功。对两组病例的围手术期临床资料行统计学分析,发现RATS组手术时间略长于VATS组,但差异无统计学意义(P＝0.625)。RATS组术中出血量较VATS组更少（P<0.001）。RATS组淋巴结清扫站数（P<0.001）及清扫个数（P＝0.031）均高于VATS组;RATS组住院费用较VATS组高,差异有统计学意义（P<0.001）。术后第1~3天疼痛数字评分（NRS评分）差异有统计学意义（P<0.001）,RATS组术后第1~3天NRS评分更高。两组淋巴结升期率、术后第1~3天引流量、术后全部拔管时间、术后住院天数、术后并发症差异无统计学意义（P>0.05）。 结论在可切除肺癌手术治疗上,RATS与VATS的围手术期安全性及短期疗效相似。此外,RATS在术中出血量、淋巴结清扫彻底性上存在优势,缺点是增加了住院总费用,潜在增加了术后疼痛。     

Laparoscopic vs open total gastrectomy for advanced gastric cancer following neoadjuvant therapy: A propensity score matching analysis

BACKGROUNDLaparoscopic total gastrectomy (LTG) has drawn increasing attention over the years. Although LTG has shown surgical benefits compared to open TG (OTG) in early stage gastric cancer (GC), little is known about the surgical and oncological outcomes of LTG for advanced GC following neoadjuvant therapy (NAT).AIMTo compare the long- and short-term outcomes of advanced GC patients who underwent LTG vs OTG following NAT.METHODSAdvanced GC patients who underwent TG following NAT between April 2011 and May 2018 at the Cancer Hospital of the Chinese Academy of Medical Sciences were enrolled and stratified into two groups: LTG and OTG. Propensity score matching analysis was performed at a 1:1 ratio to overcome possible bias.RESULTSIn total, 185 patients were enrolled (LTG: 78; OTG: 109). Of these, 138 were paired after propensity score matching. After adjustment for propensity score matching, baseline parameters were similar between the two groups. Compared to OTG, LTG was associated with a significantly shorter length of hospital stay (P = 0.012). The rates of R0 resection, lymph node harvest, and postoperative morbidity did not significantly differ between the two groups. Overall survival (OS) outcomes were comparable between the two groups. Pathological T and N stages were found to be independent risk factors for OS.CONCLUSIONLTG can be a feasible method for advanced GC patients following NAT, as it appears to be associated with better short- and comparable long-term outcomes compared to OTG.     

Myasthenia gravis affects overall survival in patients with thymoma: an analysis of multicentre database using propensity score matching

Open in a separate window OBJECTIVESAbout one-third of patients with thymoma have myasthenia gravis (MG). It remains controversial whether MG affects the prognosis of patients with thymoma. The aim of this study was to evaluate the effect of MG on the prognosis of patients with thymoma in a multicentre database.METHODSPatients with thymoma who underwent thymectomy were identified from 2 prospectively collected databases in 2 medical centres from 2010 to 2018. Kaplan–Meier curves and the log-rank test were used to assess overall survival and recurrence-free survival, and a Cox proportional hazards model was used to determine significant contributors to survival. Propensity score matching was performed to eliminate selection bias.RESULTSA total of 514 patients with thymoma were included in this study, of whom 320 patients were MG-free and 194 had MG. Patients with MG were younger (median age 50 vs 54 years, P = 0.001) and had smaller tumours (4.4 ± 2.0 vs 4.9 ± 2.3 cm, P = 0.020). Pathological analysis showed that type B tumours especially B2−B3 (B2 + B3 + mix B tumours, 55.2%) are more common in patients with MG, while type AB (37.2%) was the most common in patients without MG. A larger proportion of Masaoka III–IV stage tumour (25.7% vs 11.0%, P < 0.001) was seen in patients with thymoma and MG. Multivariable Cox regression analysis demonstrated that MG (hazard ratio [HR] = 3.729, 95% confidence interval [CI]: 1.398–9.947, P = 0.009), incomplete resection (HR = 5.441, 95% CI: 1.500–19.731, P = 0.010) and Masaoka stage III + IV (HR = 3.390, 95% CI: 1.196–9.612, P = 0.022) were negative prognostic factors of overall survival. Meanwhile, MG (HR =3.489, 95% CI: 1.403–8.680, P = 0.007) and Masaoka stage III + IV (HR = 6.582, 95% CI: 2.575–16.828, P < 0.001) were negative prognostic factors of recurrence-free survival. Propensity-matched analysis compared 148 patient pairs. K-M survival analysis demonstrated that MG was associated with worse overall survival and recurrence-free survival in propensity score-matched patients (log-rank, P = 0.034 and 0.017, respectively).CONCLUSIONSThymoma patients with MG have smaller tumours and a higher percentage of late-stage tumours, which are mainly of WHO B types, especially B2−B3 types. In addition, MG is significantly associated with worse overall survival and recurrence-free survival in thymoma.     

Short-term and middle-term evaluation of laparoscopic hepatectomies compared with open hepatectomies: A propensity score matching analysis

AIM To compare short-term results between laparoscopic hepatectomy and open hepatectomy using a propensity score matching. METHODS A patient in the laparoscopic liver resection(LLR) groupwas randomly matched with another patient in the open liver resection(OLR) group using a 1:1 allocated ratio with the nearest estimated propensity score. Patients of the LLR group without matches were excluded. Matching criteria included age, gender, body mass index, American Society of Anesthesiologists score, potential co-morbidities, hepatopathies, size and number of nodules, preoperative chemotherapy, minor or major liver re-sections. Intraoperative and postoperative data were compared in both groups.RESULTS From January 2012 to January 2015, a total of 241 hepa-tectomies were consecutively performed, of which 169 in the OLR group(70.1%) and 72 in the LLR group(29.9%). The conversion rate was 9.7%(n = 7). The mortality rate was 4.2% in the OLR group and 0% in the LLR group. Prior to and after propensity score matching, there was a statistically significant difference favorable to the LLR group regarding shorter operative times(185 min vs 247.5 min; P = 0.002), less blood loss(100 m L vs 300 m L; P = 0.002), a shorter hospital stay(7 d vs 9 d; P = 0.004), and a significantly lower rate of medical complications(4.3% vs 26.4%; P 0.001). CONCLUSION Laparoscopic liver resections seem to yield better short-term and mid-term results as compared to open hepatectomies and could well be considered a privileged approach and become the gold standard in carefully selected patients.     

Risk factors for surgical site infection after stoma closure comparison between pursestring wound closure and conventional linear wound closure: Propensity score matching analysis

Purpose

Stoma closure has been associated with a high rate of surgical site infection (SSI) and the optimal skin closure method is still controversial. The aim of this study was to compare the short-term and long-term outcomes between the conventional linear closure (CC) and the persestring closure (PC) using propensity score matching analysis.

复发性肝癌再次手术方式的选择:一项基于倾向评分匹配的研究

目的本研究基于倾向评分匹配(PSM)比较挽救性肝移植(sLT)及再次肝切除(RR)的疗效,同时探讨影响复发性肝癌患者预后的危险因素。方法回顾分析2012年1月至2018年8月宁波大学附属李惠利医院124例肝癌切除术后肝内复发再手术的患者,按照再次所行手术方式的不同,分成sLT组(46例)和RR组(78例),通过1∶1倾向评分匹配(PSM),筛选出34例患者用于数据分析,比较匹配前后两组的临床基本资料、总生存期(OS)及无瘤生存期(DFS)来探讨两种手术方式的优劣以及影响患者预后的因素。结果匹配前sLT组的术前血清总胆红素、多发肿瘤的比例、术前行经导管动脉化疗栓塞术(TACE)的比例及符合米兰标准的比例均要高于RR组(P<0.05),最大肿瘤直径sLT组要小于RR组(P<0.05);手术时间、术中出血量、微血管侵犯(MVI)阳性率及术后ClavienⅢ级以上的并发症的比例均要高于RR组(P<0.05)。匹配后sLT组的手术时间、术中出血量、术后并发症ClavienⅢ以上的比例均高于RR组(P<0.05);sLT组的1、3、5年OS与RR组相比差异无统计学意义(P>0.05),sLT组的1、3、5年DFS与RR组相比较优(P<0.05);甲胎蛋白(AFP)≥100μg/L是OS的独立危险因素,手术方式、AFP≥100μg/L是DFS的独立危险因素。结论sLT组术前病情更重,手术时间、术中出血量及术后严重并发症率高于RR组;sLT组较RR组可取得更长的DFS,但对OS来说,两组之间差异无统计学意义。     

基于倾向性评分匹配的急性等容血液稀释对胃肠手术患者术后谵妄的影响

目的应用倾向性评分匹配探讨急性等容血液稀释(acute normovolemichemodilution,ANH)对胃肠手术患者术后谵妄的影响。方法回顾分析2017年1—12月在南通大学附属医院普外科进行的消化道肿瘤手术484例的患者资料,包括患者的一般资料、围术期资料以及实验室检查结果等,根据是否应用ANH将患者分为ANH组(n=158)和对照组(n=326),应用倾向性评分匹配分析两组患者苏醒延迟、谵妄以及二次插管的发生率。结果在倾向性评分匹配前,ANH组性别、体重、血容量、抽烟和酗酒比例明显高于对照组(P0.05)。通过倾向性评分匹配,152例对照组患者与152例ANH组患者配对成功,以上指标两组差异无统计学意义。ANH组有13例(8.5%)输注红细胞悬液,明显低于对照组的22例(14.4%)(P0.05);对照组谵妄发生率17例(11.3%),明显高于ANH组的10例(6.8%)(P0.05)。结论胃肠手术患者围术期应用急性等容血液稀释技术,异体输血量少,苏醒期谵妄发生率低。