Sub-millimeter surgical margin is acceptable in patients with good tumor biology after liver resection for colorectal liver metastases

BackgroundThe definition of R1 resection in colorectal cancer liver metastases (CRLM) remains debatable. This retrospective study was conducted to clarify the impact of R1 margin on patient survival after liver resection for CRLM, taking into consideration tumor biology, including RAS status and chemotherapy response.MethodsWe retrospectively analysed the clinical and survival data of 214 CRLM patients with initially resectable liver metastases who underwent liver resection after receiving neoadjuvant chemotherapy between January 2006 and December 2016.ResultsR1 resection significantly impacted patients’ overall survival (OS) and disease-free survival (DFS) in the overall patient cohort (5-year OS: 53.2% for R0 vs 38.2% for R1, P = 0.001; 5-year DFS: 26.5% for R0 vs 10.5% for R1, P = 0.002). In the RAS wild-type subgroup and respond to chemotherapy (RC) subgroup, R1 reached a similar OS to those who underwent R0 resection (RAS wild-type, P = 0.223; RC, P = 0.088). For the RAS mutated subgroup and no response to chemotherapy (NRC) subgroup, OS was significantly worse underwent R1 resection (RAS mutant, P = 0.002; NRC, P = 0.022). When considering tumor biology combining RAS and chemotherapy response status, R1 resection was only acceptable in patients with both RAS wild-type and RC (5-year OS: 66.4% for R0 vs 65.2% for R1, p = 0.884), but was significantly worse in those with either RAS mutation or NRC.ConclusionsTumor biology plays an important role in deciding the appropriate resection margin in patients with CRLM undergoing radical surgery. R1 resection margin is only acceptable in RAS wild-type patients who respond to chemotherapy.     

Liver resection is justified for multinodular hepatocellular carcinoma in selected patients with cirrhosis: A multicenter analysis of 1,066 patients

BackgroundThe role of liver resection for multinodular (≥3 nodules) hepatocellular carcinoma (HCC) remains unclear, especially among patients with severe underlying liver disease. We sought to evaluate surgical outcomes among patients with cirrhosis and multinodular HCC undergoing liver resection.MethodsUsing a multicenter database, outcomes among cirrhotic patients who underwent curative-intent resection of HCC were examined stratified according to the presence or absence of multinodular disease. Perioperative mortality and morbidity, as well as overall survival (OS) and recurrence-free survival (RFS) were compared between the two groups.ResultsAmong 1066 cirrhotic patients, 906 (85.0%) had single- or double-nodular HCC (the non-multinodular group), while 160 (15.0%) had multinodular HCC (the multinodular group). There were no differences in postoperative 30-day mortality and morbidity among non-multinodular versus multinodular patients (1.8% vs. 1.9%, P = 0.923, and 36.0% vs. 39.4%, P = 0.411, respectively). In contrast, 5-year OS and RFS of multinodular patients were worse compared with non-multinodular patients (34.6% vs. 58.2%, and 24.7% vs. 44.5%, both P < 0.001). On multivariable analyses, tumor numbers ≥5, total tumor diameter ≥8 cm and microvascular invasion were independent risk factors for decreased OS and RFS after resection of multinodular HCC in cirrhotic patients.ConclusionsLiver resection can be safely performed for multinodular HCC in the setting of cirrhosis with an overall 5-year survival of 34.6%. Tumor number ≥5, total tumor diameter ≥8 cm and microvascular invasion were independently associated with decreased OS and RFS after resection in cirrhotic patients with multinodular HCC.     

Role of adjuvant chemoradiotherapy and chemotherapy in patients with resected gallbladder carcinoma: a multi-institutional analysis (KROG 19-04)

Objective:The effectiveness of adjuvant treatments for resected gallbladder carcinoma (GBC) has remained unclear due to lack of randomized controlled trials; thus, the aim of present study was to evaluate the role of adjuvant treatments, including chemoradiotherapy (CRT) and/or chemotherapy (CTx), in patients with resected GBC.Methods:A total of 733 GBC patients who received curative-intent surgical resection were identified in a multi-institutional database. Of 733 patients, 372 (50.8%) did not receive adjuvant treatment, whereas 215 (29.3%) and 146 (19.9%) received adjuvant CTx and CRT, respectively. The locoregional recurrence-free survival (LRFS), recurrence-free survival (RFS), and overall survival (OS) of the adjuvant treatment groups were compared according to tumor stage (stage II vs. stage III–IV).Results:In stage II disease (n = 381), the 5-year LRFS, RFS, and OS were not significantly different among the no-adjuvant therapy, CTx, and CRT groups, and positive resection margin, presence of perineural invasion, and Nx classification were consistently associated with worse LRFS, RFS, and OS in the multivariate analysis (P < 0.05). For stage III–IV (n = 352), the CRT group had significantly higher 5-year LRFS, RFS, and OS than the no-adjuvant therapy and CTx groups (67.8%, 45.2%, and 56.9%; 37.9%, 28.8%, and 35.4%; and 45.0%, 30.0%, and 45.7%, respectively) (P < 0.05).Conclusions:CRT has value as adjuvant treatment for resected GBC with stage III–IV disease. Further study is needed for stage II disease with high-risk features.     

133例Ⅲ期鼻咽癌调强放疗的疗效及不良反应分析

背景与目的:调强放疗(intensity-modulated radiation therapy,IMRT)是最大限度提高肿瘤靶区照射剂量的同时明显减少周围正常组织的剂量的放疗技术,调强放疗联合化疗治疗局部晚期鼻咽癌取得了较好的疗效,如何在此基础上进一步提高疗效成为肿瘤学者共同关注的话题.鼻咽癌分期不同,疗效不同,同一分期各亚组间疗效有无差别,尚有待研究.通过回顾性分析临床Ⅲ期鼻咽癌各亚组间调强放疗联合化疗的疗效,探讨进一步提高疗效的方法.方法:对我院2003年1月-2006年6月期间收治的133例临床Ⅲ期鼻咽癌患者进行分析,根据AJCC 2002分期,其中T3N0 7例(5.3％),T3N1 39例(29.3％),T2N2 48例(36.1％),T3N2 39例(29.3％).所有患者均完成调强放疗,124例患者行诱导化疗,其中24例患者行同期化疗,33例患者行辅助化疗.结果:全组5年局部控制率、无远处转移生存率、无瘤生存率和总生存率分别为:90.9％、89.9％、82.5％和83.4％.T2、T3期患者5年局部控制率分别为93.1％、89.4％(x2=0.407,P=0.524),无远处转移生存率分别为91.2％、89.3％(x2=0.152,P=0.697),无瘤生存率分别为86.5％、80.0％(x2=0.899,P=0.343),总生存率分别为81.1％、84.7％(x2=0.311,P=0.577).N0-1、N2期患者5年局部控制率分别为91.1％、90.9％(x2=0.007,P=0.933),无远处转移生存率分别为97.8％、85.8％ (x2=4.69,P=0.030),无瘤生存率分别为88.9％、79.2％(x2=1.746,P=0.183 6),总生存率分别为93.5％、78.1％(x2=5.052,P=0.025).辅助化疗对IMRT Ⅲ期鼻咽癌未能获益,但3、4级毒性不良反应明显增加(48％ vs 27.6％,P＜0.005).结论:对临床Ⅲ期鼻咽癌患者,IMRT联合化疗可以取得较好的疗效,N0-1期较N2期患者有较高的总生存率和无远处转移生存率,进一步提高IMRT Ⅲ期鼻咽癌疗效还需寻找更有效的化疗药物、靶向药物及更合理的联合治疗方案.     

Five-year oncologic outcomes and prognostic factors for locally advanced low rectal cancer after low anterior resection

Objective： The aim of the study is to investigate the longterm oncologic outcomes including local recurrence, distant metastases and overall survival （OS） for patients with low rectal cancer underwent low anterior resection （LAR） with total mesorectal excision （TME）, and to analyze the prognostic factors for them. Methods： Between January 2001 and December 2009, 147 patients with clinical stage II and III rectal cancers located 3-6 cm from the anal verge underwent LAR with TME without temporary diverting stoma. The median distal resection margin （DRM） was 1.0 （range, 0.3-5） cm. Anastomostic leakage occurred in 29 （19.7%） patients. Thirty patients received surgery alone, 20 patients received preoperative chemoradiotherapy （CRT）, 43 patients received postoperative CRT, and adjuvant chemotherapy was administered for 108 patients. The median cycle of adjuvant chemotherapy was 6 （range, 2-20） cycles. The median followup was 74.8 （range, 30.1-146.3） months. Results： In all patients, 5-year recurrence-free survival （RFS）, disease-free survival （DFS） and OS were 70.4%, 54.2% and 60.5%, respectively. Forty-three （29.3%） patients suffered local recurrence. Patients received preoperative CRT with a downstaging yp0/1 who had a better 5-year RFS, DFS and OS, which were 100%, 90.9%, and 90.9%, respectively. For patients with pathologic stage Ⅱ and stage Ⅲ, the 5-year RFS, DFS, and OS were 79.2% and 60.1%, 67.9% and 39.1%, 72.1% and 48.2%, respectively. On multivariable analysis, RFS was associated with anostomostic leakage, DFS was associated with anastomostic leakage and pathologic N stage, and OS was associated with anastomostic leakage, pathologic N and T stage. For patients with anastomostic leakage, the 5-year RFS, DFS, and OS were 51.7%, 32.4%, and 38.3%, respectively, which were worse than that for patients without anastomostic leakage, the latter were 75.2%, 59.7%, 65.7%, respectively （P 〈 0.05）. DRM and radiotherapy were associated with RFS on univariable     

ⅡB~Ⅲ期食管癌根治术后预防性放疗疗效分析

目的 探讨术后预防性放疗对ⅡB、Ⅲ期胸段食管癌根治术患者生存的影响。方法 收集2007—2010年本院行食管胸段鳞癌根治术患者336例,其中ⅡB期65例、Ⅲ期271例;术后未行放疗组（S）220例,术后放疗组（S+R）116例;放疗中位剂量50 Gy。采用Kaplan-Meier法计算生存率及局控率;Log rank法检验行单因素预后分析。结果 随访率为98.2%,全组患者5年生存率及5年无进展生存率分别为29.3%和25.6%;中位生存时间及中位无进展生存时间分别为26.7月和17.4月。ⅡB期患者S组与S+R组5年生存率分别为30.1%与48.6%,差异无统计学意义（χ ²=2.279, P=0.131）;Ⅲ期患者S组与S+R组5年生存率分别为24.9%与32.8%,差异有统计学意义（χ ²=5.865, P=0.015）;术后病理淋巴结阳性患者S组与S+R组5年生存率分别为25.9%与35.8%,差异有统计学意义（χ ²=7.663, P=0.006）;全组患者S组与S+R组的中位局控时间分别为10.6和16.3月,差异有统计学意义（χ ²=6.043, P=0.014）。结论 食管癌根治术后预防性放疗可明显降低局部复发并使Ⅲ期及术后病理淋巴结阳性的患者生存获益。     

Ⅲ期结直肠癌术后经肝动脉灌注联合静脉辅助化疗的临床观察

  目的  通过与静脉辅助化疗对照, 观察经肝动脉灌注联合静脉辅助化疗对Ⅲ期结直肠癌术后肝转移、无病生存期及总生存期的影响。   方法  2002年1月至2006年3月, 21例Ⅲ期结直肠癌患者作为治疗组, 术后给予肝动脉灌注FUDR联合静脉应用草酸铂化疗, 同期对照21例Ⅲ期结直肠癌患者, 术后给予草酸铂联合CF/5-FU静脉化疗。主要观察终点为肝转移率及DFS, 次要终点为OS和用药安全性。   结果  中位随访65(9~119)个月, 治疗组肝转移发生率较低(9.5%vs.28.6%, P=0.109), 肺转移发生率略高(28.6%vs.14.3%, P=0.256)。2组5年DFS(38.1%vs.42.9%, P=0.671)及OS(47.9%vs.45.0%, P=0.784)无统计学差异。化疗副反应多为Ⅰ~Ⅱ度血白细胞减少、恶心呕吐及感觉神经障碍。   结论  Ⅲ期结直肠癌术后给予经肝动脉联合静脉系统化疗, 与静脉化疗相比, 可能会降低肝转移的发生率, DFS及OS无统计学差异, 化疗副反应较轻, 可耐受。      

A Prospective Randomized Study of Adjuvant Chemotherapy in Completely Resected Stage III-N2 Non Small Cell Lung Cancer

Objective: To evaluate the effect of postoperative adjuvant chemotherapy on survival after complete resection of stage III-N2 non-small-cell lung cancer. Methods: From Jan. 1999 to Dec. 2003, one-hundred and fifty patients, who were diagnosed as stage III-N2 non-small cell lung cancer after operation, were randomly devided into chemotherapy group and control group. The former received four cycles of chemotherapy with NVB (25 mg/m2, D1, D5)/paclitaxel (175 mg/m2, D1) and Carboplatin (AUC=5, D1). Results: In chemotherapy group, 75.8% (68/79) of patients had finished the 4 cycles of chemotherapy and no one died of toxic effects of chemotherapy. Twenty-five percent of the patients had grade 3?4 neutropenia and 2% had febrile neutropenia. The median survival for the entire 150 patients was 879 d, with 1-year survival rate of 81%, 2-year survival rate of 59% and 3-year survival rate of 43%. There was no significant difference in median survival between chemotherapy and control group (897 d vs 821 d, P=0.0527), but there was significant difference in the 1-year and 2-year overall survival (94.71%, 76.28% vs 512 d, P=0.122), but there was significant difference in the 2-year survival rate between two groups with brain metastases (66.7% vs 37.6% P<0.05). The median survival after brain metastasis appeared was 190 days. Conclusion: Postoperative adjuvant chemotherapy does not significantly improve median survival among patients with completely resected stage II-N2 non-small-cell lung cancer, but significantly improves the 1-year and 2-year overall survival. It neither decreases the incidence of brain metastasis but put off the time of brain metastasis.     

Impact of Adjuvant Chemotherapy Cycles on Prognosis of Resectable Stomach Cancer: A Retrospective Analysis

Aims: The aim of this study was to investigate the effects of adjuvant chemotherapy cycles on the prognosisof patients with post-operative stomach cancer through retrospective analysis. Methods: A total of 128 patientswith gastric cancer who underwent gastrectomy, followed by adjuvant chemotherapy consisting of epirubicin,cisplatin or oxaliplatin, leucovorin, and 5-fluorouracil, according to a defined schedule, were divided into threegroups according to the number of chemotherapy cycles: Group I (<6 cycles); Group II (6 cycles); and GroupIII (>6 cycles). Results: The 5-year overall survival (OS) was 20.8% in Group I, 45.0% in Group II, and 42.9%in Group III, with a median follow-up of 43 months. The 5-year relapse-free survival (RFS) was 15.1% in GroupI, 40% in Group II, and 40% in Group III. The OS and RFS in Groups II and III were significantly betterthan in Group I (OS, p = 0.002 and p=0.003; RFS, P<0.001 and P=0.002). There was no difference in OS (p =0.970) or in RFS (p = 0.722) between Groups II and III. Multivariate Cox hazard analysis determined that thenumber of adjuvant chemotherapy cycles was an independent factor that influenced OS and RFS. Conclusion:Six cycles of adjuvant chemotherapy gave encouraging outcomes in patients with resectable gastric cancer.Further prospective randomized controlled investigations are warranted in a multi-center setting.     

Adjuvant chemotherapy with paclitaxel and cisplatin in lymph node-positive thoracic esophageal squamous cell carcinoma

Objective:No standard postoperative adjuvant chemotherapy has ever been established in node-positive esophageal squamous cell carcinoma (ESCC).This is a study to explore the effect of postoperative paclitaxel (PTX) and cisplatin (DDP) in lymph node-positive,completely resected thoracic ESCC patients.Methods:We conducted a prospective phase Ⅱ trial.Patents had pathologically node-positive thoracic ESCC with negative margins.Outcomes of disease-free survival (DFS) and overall survival (OS) were compared with a matched historical control cohort.The postoperative chemotherapy regimen consisted of 4 to 6 cycles of PTX 150 mg/m2 administered intravenously on d 1 followed by DDP 50 mg/m2 on d 2 every 14 d.Results:Forty-three patients were accrued from December 2007 to May 2012 at Cancer Hospital of Chinese Academy of Medical Sciences for adjuvant chemotherapy.The historical control group consisted of 80 patients who received complete resection but no adjuvant chemotherapy during the same period of time.Of the 43 patients with adjuvant chemotherapy,37 (86.0％) patients completed 4 to 6 cycles of chemotherapy.The 3-year DFS rates were 56.3％ in the adjuvant group and 34.6％ in the control group (P=0.006).The 3-year OS rates were 55.0％ in the adjuvant group and 37.5％ in the control group (P=0.013).Multivariate analysis revealed that postoperative chemotherapy was the significant predictor for improved OS (P=0.005).Conclusions:Biweekly adjuvant PTX and DDP might improve 3-year DFS and OS in lymph node-positive,curatively resected thoracic ESCC patients.These conclusions warrant further study in randomized phase Ⅲ clinical trials.     

淋巴结降期对ⅢA～N2 期非小细胞肺癌患者术后远期疗效的影响

目的:观察ⅢA ～N 2 期非小细胞肺癌（NSCLC ）诱导化疗加手术患者的术后复发及生存情况,分析淋巴结降期对预后的影响,探索术后放疗的必要性。方法:回顾性选取天津医科大学肿瘤医院2009年1 月至2014年6 月116 例接受诱导化疗加手术的ⅢA ～N 2 期NSCLC 患者116 例,全组均为R 0 切除。Kaplan-Meier 法计算局部无复发生存期（local-recurrencefreesurvival ,LRFS）、无远处转移生存期（distant-metastasisfreesurvival,DMFS）和生存期（overallsurvival,OS）,Log-rank 法比较组间差异,Cox 模型多因素预后分析。结果:全组中位随访时间24.42个月。pN0、pN1、pN2 期患者分别为40例（34.5%）、16例（13.8%）和60例（51.7%）,3 年复发率分别为27.5% 、56.2% 和51.7% 。77例患者接受了辅助化疗,其中pN0、pN1、pN2 患者3 年复发率分别为26.9% 、58.3% 和46.2% 。多因素分析中,pN0 是影响LRFS的因素。pN1 组的LRFS短于pN0 组（P = 0.048）,pN1 组和pN2 组的LRFS差异无统计学意义（P = 0.314）。 全组5 年生存率为46.6% ,多因素分析显示pT1、pN0～1、诱导化疗疗效是影响OS的因素。pN2 组的OS短于pN1 组和pN0组（P < 0.05）,pN1 组和pN0 组的OS差异无统计学意义（P = 0.412）。 结论:淋巴结降期虽然是ⅢA ～N 2 期NSCLC 诱导化疗加手术患者的良好预后因素,但是淋巴结降期的pN0 和pN1 患者,即使接受了辅助化疗,仍有较高复发风险,有必要探索诱导化疗+手术+术后放疗的新模式。      

119例进展期胆囊癌临床治疗的疗效分析

目的:分析能够影响进展期胆囊癌(gallbladder cancer,GBC)患者预后的因素,探讨不同治疗方法对患者预后的影响。方法:收集2003年1月至2012年12月我院收治的119例进展期GBC患者的临床资料和随访资料,通过单因素分析和多因素分析探讨预后相关因素,并进行生存分析。结果:单因素分析提示,CEA、CA199、术前胆红素水平、有无黄疸、肿瘤分化程度、治疗方式、切缘、TNM分期及淋巴结转移均为影响患者预后的危险因素。多因素分析提示,TNM分期为ⅢA~ⅣA期、淋巴结转移、低分化或未分化、治疗方式和是否实现根治性R0切除是影响进展期GBC患者预后的危险因素。ⅢA和ⅢB期患者接受的治疗方法有GBC标准根治术、扩大根治术、术后化疗、姑息治疗和支持治疗,接受不同治疗的ⅢA期患者的中位生存时间分别为10.3个月、14.0个月、27.8个月、9.0个月和5.7个月,ⅢB期患者则为12.0个月、22.0个月、23.9个月、7.9个月和3.1个月,差异有统计学意义(P<0.05)。接受根治性治疗的患者中,R0切除率为85.3%,1年、3年和5年生存率分别为72.3%、33.6%和20.0%,均优于接受非根治性R1/2切除组的患者(21.8%、0%和0%),且中位生存时间也明显延长(29.9个月vs 10.3个月),差异有统计学意义(χ2=15.012,P<0.05)。结论:影响进展期GBC患者预后的因素有低分化或未分化、治疗方式不同、原发肿瘤能否根治性R0切除、TNM为ⅢA~ⅣA期以及淋巴结转移。根治性R0切除组患者的预后明显优于非根治性切除组。对于ⅢA~ⅣA期的患者,在患者身体条件允许的前提下,可通过GBC扩大根治术提高根治性切除率,术后再适当予以辅助化疗,可在一定程度上改善患者的术后生存期。     

胃癌根治术后辅助治疗的疗效及预后因素分析

目的:探讨胃癌根治术后辅助治疗的疗效及其影响生存的预后因素。方法:回顾性分析2009年1月至2012年12月期间在我院行根治术后辅助化疗的388例胃癌患者的临床和病理资料,按是否加用腹腔灌注化疗分为两组,联合腹腔灌注化疗组194例,单纯术后辅助化疗为对照组194例,计算患者的生存率并进行预后分析。结果:388例患者1年、3年、5 年总生存（OS）率为95.0%、65.3%、53.0%,1、3、5年无病生存（DFS）率为79.0%、53.0%、44.7%。单因素分析显示病理分期、淋巴结状况N、R0/R1切除术、静脉化疗周期数、联合腹腔灌注化疗是患者生存的预后因素,进一步多因素回归分析显示淋巴结状况N、R0/R1切除术、是否联合腹腔灌注化疗对OS及DFS均有统计学差异（P＜0.05）。结论:淋巴结状况N、R0/R1切除术以及联合腹腔灌注化疗是影响患者生存的独立预后因素,为进展期胃癌预后的判断及选择适宜的治疗方化疗案提供了有力依据。强调早诊早治,施以根治性手术为主的综合治疗模式,是提高胃癌术后生存率的关键。     

294例睾丸精原细胞瘤的远期疗效分析

目的 总结睾丸精原细胞瘤的远期疗效并探讨其治疗策略.方法 回顾性分析294例睾丸精原细胞瘤患者的临床资料.按1997年国际抗癌联盟(UICC)的TNM分期标准,Ⅰ期260例,Ⅱ期16例,Ⅲ期18例.治疗方法为手术切除原发病灶联合化疗和(或)放疗.数据分析采用SPSS13.0统计软件,生存分析应用Kaplan-Meier法,总生存率的比较采用Log rank方法检验.结果 全组294例患者的5、10、20和30年总生存率分别为92.1%、91.8%、85.5%和71.4%.临床分期对总生存率有显著影响.Ⅰ期患者中,术后辅助治疗者与未行辅助治疗者的10年总生存率分别为97.5%和79.2%,经辅助治疗者的生存明显获益(P=0.001).Ⅱ期和Ⅲ期患者的预后均与治疗方法无关(均P＞0.05).结论 睾丸精原细胞瘤对放化疗敏感,即使出现复发转移的患者仍有长期生存可能.治疗时应充分考虑患者的生活质量,尽量避免大范围手术切除和长期化疗.     

同步放化疗与新辅助化疗联合手术加辅助放疗治疗Ⅱb期宫颈癌的对比分析

目的:分析比较根治性放疗联合双药同步化疗与新辅助化疗联合根治性子宫切除术加术后辅助放疗治疗FIGO Ⅱb宫颈癌的复发转移率,无进展生存期(PFS),总生存期(OS),不良反应及预后影响因素.方法:回顾性分析2008年9月至2013年12月期间中南大学湘雅二医院肿瘤中心及妇科收治的初治FIGO Ⅱb期宫颈癌患者,共计91例.按照治疗方式分为两组:①同步放化疗组49例:根治性放疗联合双药同步化疗,3周方案连续4至6周期;②新-术-放疗组42例:先予以2至3周期新辅助化疗,然后行根治性子宫切除及盆腔淋巴结清扫术加术后辅助放疗.比较两种治疗方式的疗效及不良反应有无差异,并通过Cox回归模型分析影响预后的因素.结果:同步放化疗组和新-术-放疗组5年无进展生存率分别为80.8%、74.6%,总生存分别为85.6%、81.8%,两组间5年无进展生存率及总生存差异均无统计学意义(分别为P=0.43和P=0.62).同步放化疗组随访期间6例患者(12.24%)出现死亡,新-术-放疗组7例(16.67%)患者死亡,两组之间差异无统计学意义(P=0.55).同步放化疗组2例(4.08%)患者出现复发和(或)转移,新-术-放疗组4例(9.52%)出现复发和(或)转移,两组之间差异无统计学意义(P=0.42).Ⅲ-Ⅳ级近期毒副反应同步放化疗组出现3例(6.12%),新-术-放疗组出现2例(4.76%),两组之间差异无统计学意义(P=1);远期毒副反应中,无Ⅲ级及以上的慢性放射性反应发生,同步放化疗组4例(8.16%)患者出现放射性肠炎,新-术-放疗组同样4例(9.52%)患者出现放射性肠炎,另外2例(4.76%)患者出现下肢水肿,两组之间差异无统计学意义(P=0.50).Cox回归比例风险模型分析肿瘤直径大于4 cm是无进展生存期和总生存期的预后不良因素(P均<0.05).结论:同步放化疗与新辅助化疗联合根治性手术加术后辅助放疗治疗FIGO Ⅱb期宫颈癌的复发转移率、无进展生存期及总生存期无统计学意义(P>0.05).同步放化疗与新辅助化疗联合根治性手术加术后辅助放疗治疗FIGO Ⅱb期宫颈癌的近期及远期毒性反应无统计学意义(P>0.05).     

Doxorubicin-based adjuvant chemotherapy in soft tissue sarcoma: pooled analysis of two STBSG-EORTC phase III clinical trials

BackgroundThe EORTC-STBSG coordinated two large trials of adjuvant chemotherapy (CT) in localized high-grade soft tissue sarcoma (STS). Both studies failed to demonstrate any benefit on overall survival (OS). The aim of the analysis of these two trials was to identify subgroups of patients who may benefit from adjuvant CT.Patients and methodsIndividual patient data from two EORTC trials comparing doxorubicin-based CT to observation only in completely resected STS (large resection, R0/marginal resection, R1) were pooled. Prognostic factors were assessed by univariate and multivariate analyses. Patient outcomes were subsequently compared between the two groups of patients according to each analyzed factor.ResultsA total of 819 patients had been enrolled with a median follow-up of 8.2 years. Tumor size, high histological grade and R1 resection emerged as independent adverse prognostic factors for relapse-free survival (RFS) and OS. Adjuvant CT is an independent favorable prognostic factor for RFS but not for OS. A significant interaction between benefit of adjuvant CT and age, gender and R1 resection was observed for RFS and OS. Males and patients >40 years had a significantly better RFS in the treatment arms, while adjuvant CT was associated with a marginally worse OS in females and patients <40years. Patients with R1 resection had a significantly better RFS and OS favoring adjuvant CT arms.ConclusionAdjuvant CT is not associated with a better OS in young patients or in any pathology subgroup. Poor quality of initial surgery is the most important prognostic and predictive factor for utility of adjuvant CT in STS. Based on these data, we conclude that adjuvant CT for STS remains an investigational procedure and is not a routine standard of care.     

HER2 as a potential biomarker guiding adjuvant chemotherapy in stage II colorectal cancer

BackgroundHER2 is a well-established therapeutic target in breast and gastric cancers, while the role of HER2 in colorectal cancer is unclear, and no studies have explored the impact of HER2 on the outcome of stage II colorectal cancer patients treated with 5-fluorouracial based adjuvant chemotherapy.MethodsWe analyzed HER2 mRNA expression of 206 patients in GSE39582 dataset and explored the impact of HER2 expression on benefit from adjuvant chemotherapy for stage II colon cancer patients. We further validated the finding by retrospectively analyzing HER2 detection of immunohistochemistry in a cohort of 282 patients in Fudan University Shanghai Cancer Center (FUSCC).ResultsIn GSE39582 dataset, chemo-treated HER2-high patients had a better overall survival (OS) and relapse-free survival (RFS) versus chemo-naïve HER2-high patients (5-year OS: 100% vs 69.5%, 5-year RFS: 100% and vs 64%, P = 0.027 and 0.025, respectively). On the contrary, chemo-treated HER2-low patients had a worse RFS compared with chemo-naïve HER2-low patients (5-year RFS: 65.6% vs 82.1%, P = 0.022). In FUSCC cohort, chemo-treated HER2-positive patients exhibited better OS vs chemo-naïve HER2-positive patients (5-year OS: 100% vs 73.8%, P < 0.001), and showed marginal evidence of a lower probability of recurrence (5-year RFS: 74.4% vs 58.7%, P = 0.072). After stratifying by mismatch repair (MMR) status, the results only kept consistency in patients with pMMR status.ConclusionsHER2-positve patients with stage II colorectal cancer can benefit from 5-fluorouracial based adjuvant chemotherapy, especially for patients with pMMR status.     

Real-world role of performance status in surgical resection for hepatocellular carcinoma: A multicenter study

BackgroundThe Barcelona Clinic Liver Cancer (BCLC) categorizes a patient with performance status (PS)-1 as advanced stage of hepatocellular carcinoma (HCC) and surgical resection is not recommended. In real-world clinical practice, PS-1 is often not a contraindication to surgery for HCC. The aim of current study was to define the impact of PS on the surgical outcomes of patients undergoing liver resection for HCC.Methods1,531 consecutive patients who underwent a curative-intent resection of HCC between 2005 and 2015 were identified using a multi-institutional database. After categorizing patients into PS-0 (n = 836) versus PS-1 (n = 695), perioperative mortality and morbidity, overall survival (OS) and recurrence-free survival (RFS) were compared.ResultsOverall perioperative mortality and major morbidity among patients with PS-0 (n = 836) and PS-1 (n = 695) were similar (1.4% vs. 1.6%, P = 0.525 and 9.7% vs. 10.2%, P = 0.732, respectively). In contrast, median OS and RFS was worse among patients who had PS-1 versus PS-0 (34.0 vs. 107.6 months, and 20.5 vs. 60.6 months, both P < 0.001, respectively). On multivariable Cox-regression analyses, PS-1 was independently associated with worse OS (HR: 1.301, 95% CI: 1.111–1.523, P < 0.001) and RFS (HR: 1.184, 95% CI: 1.034–1.358, P = 0.007).ConclusionsPatients with PS-1 versus PS-0 had comparable perioperative outcomes. However, patients with PS-1 had worse long-term outcomes as PS-1 was independently associated with worse OS and RFS. Routine exclusion of HCC patients with PS-1 from surgical resection as recommended by the BCLC guidelines is not warranted.     

Ⅰ—Ⅱ期韦氏环弥漫大B细胞淋巴瘤化疗后辅助放疗价值探讨

目的 探讨Ⅰ—Ⅱ期韦氏环弥漫大B细胞淋巴瘤(WR-DLBCL)患者化疗达CR后接受辅助放疗对预后的影响。方法 收集2005—2013年间浙江省肿瘤医院收治的130例Ⅰ—Ⅱ期WR-DLBCL资料,全部接受至少2个周期CHOP或R-CHOP化疗并达CR。R-CHOP组43例(含放疗25例),CHOP组87例(含放疗76例)。29例接受了单纯化疗,101例接受了放化疗。Kaplan-Meier法计算生存率并Logrank法检验和单因素预后分析,Cox模型多因素预后分析。结果 5年样本量为101例。单因素分析显示ECOG评分0、1分的5年OS率分别为95.6%、80.1%(P=0.000),5年DFS率分别为95.7%、75.4%(P=0.029);单纯化疗、放化疗的5年OS率分别为77.1%、91.7%(P=0.048),5年DFS率分别为77%、87.4%(P=0.037)。Cox模型多因素分析显示ECOG评分均是OS、DFS影响因素(P=0.047、0.003),加用放疗对DFS获益有关(P=0.039),但与OS无关(P=0.133)。结论 疗前ECOG评分低的Ⅰ—Ⅱ期WR-DLBCL患者预后较好,对化疗后获CR者加用辅助放疗可能获益,但需进一步开展前瞻性随机对照研究证实。     

Ⅱ、Ⅲ期低位直肠癌新辅助治疗效果评价

目的 评价Ⅱ、Ⅲ期低位直肠癌新辅助治疗加手术与手术加术后辅助治疗的效果。方法 回顾分析本院2009—2013年收治的Ⅱ、Ⅲ期(T₃、T₄和/或N₁、N₂)低位直肠癌患者资料。根据治疗手段分为A、B组,A组为行新辅助治疗后行根治性手术切除患者共 98例,B组为直接行根治性手术切除后行术后辅助治疗患者共 93例。采用χ²检验或Fisher′s精确概率法进行组间比较,Kaplan-Meier法生存分析。结果 随访率92.1%,A组 3年LR、DM率均低于B组,分别为12.9%∶32.2%(P=0.002)、13.5%∶37.8%(P=0.001);A组生存期优于B组,3年OS、DFS率分别为84.7%∶69.9%(P=0.022)、77.6%∶50.3%(P=0.004)。结论 Ⅱ、Ⅲ期低位直肠癌患者新辅助治疗可明显降低LR、DM率,延长生存期,是安全可靠的治疗方案。