A new technique for intestinal isoperistaltic anastomosis utilizing a linear stapler for enlargement after anastomosis performed with a circular stapler

Background The high incidence of anastomotic stenosis after gastrointestinal surgery using circular staplers is a major problem. In response, we have developed a new technique that uses a linear stapler to enlarge an anastomotic opening made using a circular stapler. Methods Anastomoses were created by the new technique or by the conventional approach using a circular stapler in pig small intestine. The method was also applied in treatment of a colon cancer patient. Results The area of the anastomotic opening obtained with the new technique was more than 3 times that in the control (p < 0.001), with no significant difference between the methods in a leak test. Follow-up of the patient undergoing surgery with this approach revealed an uneventful course with a widely patent anastomosis confirmed after 3 months. Conclusions This procedure provides a larger anastomotic opening than conventional anastomosis with circular staplers, without impairing the integrity of the anastomosis.     

Totally laparoscopic gastrectomy with various types of intracorporeal anastomosis using laparoscopic linear staplers: preliminary experience

Background We analyzed our preliminary clinical data for totally laparoscopic gastrectomy (TLG) in order to evaluate its effectiveness in terms of minimal invasiveness, technical feasibility, and safety. Methods Forty-five consecutive patients who underwent TLG in our institution between June 2004 and February 2006 were enrolled in this study. There were 26 men and 19 women, with a mean age of 58.8 years and a mean body mass index (BMI) of 23.2. In all cases, only laparoscopic linear staplers were used for intracorporeal anastomosis. Results The reasons that gastrectomy was performed were adenocarcinoma in 41 cases, benign disease in three cases and gastrointestinal stromal tumor in one case, and the types of surgery were distal gastrectomy (40), total gastrectomy (four) and pylorus-preserving gastrectomy (one). Among the distal gastrectomies, Billroth I (25) was the most frequent procedure, followed by uncut Roux-en-Y gastrojejunostomy (14) and Billroth II (one), respectively. The mean operation time was 314 minutes, the mean anastomotic time was 41 minutes, the mean number of staples used was eight, and the mean estimated blood loss was 150 ml. There was no case of conversion to an open procedure. The first flatus was observed at 2.9 days, and liquid diet was started at 3.7 days. The mean number of postoperative analgesic use, except for patient-controlled analgesia (PCA), was 1.4 times, and the mean postoperative hospital stay was 11 days. Postoperative complication occurred in six patients (13.3 %), but no postoperative mortality occurred. There were two cases of delayed gastric empting and one case of anastomotic leakage, anastomotic stenosis, intraabdominal bleeding, and ventral hernia each. All of the patients recovered well with conservative or surgical management. Conclusions TLG with intracorporeal anastomosis using laparoscopic linear staplers was safe and feasible, and we were able to obtain acceptable surgical outcomes in terms of minimal invasiveness.     

Laparoscopic colorectal anastomosis using the novel Chex® circular stapler: a case–control study

Aim The purpose of this study was to assess the safety and effectiveness of a new cost‐effective circular stapler for colorectal anastomosis, the Chex^® CS. Method From 2007 to 2009, a case–control study was conducted of 54 patients who underwent left colectomy with stapled anastomosis using the Chex stapler. The patients were matched to 64 patients in whom the anastomoses were performed using the CDH^® stapler or the EEA^® stapler. The following criteria were matched: sex, age, body mass index, American Society of Anesthesiology grade, diagnosis, formation of a temporary stoma and surgical approach. Primary end‐points were postoperative mortality and morbidity. The surgeon was asked to fill out a questionnaire to assess the ergonomics of the device using an analogue visual scale. A cost analysis was performed to compare the cost of the different devices. Results There were no postoperative deaths. Morbidity, including anastomotic leakage (9%vs 8%, P = 1.000), was similar in the two groups. The surgeon’s overall appreciation was scored at 8.1/10 (3–9.5), including the best score for stapler removal (9.5). No major device failure was observed during the study. Mean surgical costs were significantly lower in the Chex group: € 903 ± 73 (885–1192) vs the control group € 971 ± 61 (956–1263) (P < 0.0001). Conclusion This study suggests that colorectal anastomosis using the Chex circular stapler is safe and does not increase overall morbidity. In particular, this device did not have a higher rate of anastomotic leakage in our patients than more expensive models currently used in our hospital.     

一种勿需缝合的完全腹腔镜胃肠毕Ⅱ式吻合技术

目的探讨一种新的勿需缝合的完全腹腔镜下胃肠毕Ⅱ式吻合技术的安全性和可行性。方法2011年5．7月间第四军医大学西京消化病医院采用自行设计的吻合技术完成完全腹腔镜胃癌D2根治术12例。该术式采用环形吻合器行胃空肠吻合,再用切割闭合器于肠壁开口处行空肠输入袢或输出袢侧侧吻合,最后关闭肠壁开口。结果12例完全腹腔镜胃大部切除术均获成功,无中转开腹或中转腹腔镜辅助手术;手术时间（196．O±19．3）min,术中出血量（169．5±28．8）ml。切除淋巴结（25．1±3．3）枚,近端切缘和远端切缘分别为（8．8±2．4）cm和（6．9±5．5）cm。术后首次排气时间平均为（3．1±1．3）d,术后住院时间（4．5±1．9）d,住院期间内均未观察到明显并发症。结论该吻合技术操作简单、快捷,勿需镜下手工缝合．用于完全腹腔镜胃大部切除重建手术安全、可行。     

Totally laparoscopic colectomy with intracorporeal anastomosis achieved using a laparoscopic linear stapler: experience of a single institute

Purpose  

Laparoscopic colonic surgery is now widely accepted. We assessed the safety and effectiveness of using a total intracorporeal surgical strategy to perform intracorporeal functional end-to-end anastomosis with an endoscopic linear stapler to treat colon cancer.     

直线切割闭合器在全腹腔镜下胃肠Roux-en-Y 吻合中应用

目的：探讨直线切割闭合器在全腹腔镜下胃肠 Roux-en-Y 吻合中应用的可行性与安全性。方法回顾性分析2011年11月至2014年2月间在首都医科大学附属北京天坛医院普通外科全腹腔镜下21例胃远端切除患者的临床和随访资料,其中消化道重建全部采用了使用直线切割闭合器胃肠 Roux-en-Y 吻合。结果所有病例均顺利完成手术,无中转开腹。20例逆蠕动胃肠 Roux-en-Y吻合时间25-40（32.1±5.5）min,1例顺蠕动胃肠 Roux-en-Y 吻合时间为35 min。1例逆蠕动胃肠 Roux-en-Y 吻合患者术后第4天进食,术后6 d 出现胃排空障碍,经保守治疗术后12 d 缓解。其余患者围手术期未出现吻合口出血、瘘、狭窄（梗阻）等并发症。术后随访2周~27个月,1例术后5.5个月因小肠侧侧吻合口狭窄再次开腹手术,其余未见吻合口相关的并发症。结论直线切割闭合器在全腹腔镜胃肠Roux-en-Y 吻合中应用,避免了镜下缝合操作,具有操作简单、易于掌握、安全等特点。     

单吻合器法腹腔镜全直肠系膜切除术的临床应用研究

目的:探讨直肠癌患者行免切割闭合器单吻合器法腹腔镜全直肠系膜切除术(total mesorectal excision,TME)的可行性及临床疗效。方法:回顾分析2009年1月至2011年12月为9例直肠癌患者使用免切割闭合器单吻合器法行腹腔镜全直肠系膜切除术的临床资料。结果:9例均顺利完成腹腔镜手术,无一例中转开腹及脏器损伤。术中、术后病理检查提示残端无肿瘤细胞残留。手术时间180～305 min,平均(243.9±43.4)min;术中出血量30～100 ml,平均(51.1±20.0)ml;淋巴结清扫数量5～12枚,平均(7.9±2.7)枚;术后住院10～17 d,平均(13.4±1.9)d;胃肠功能恢复时间平均(44.0±12.3)h,无吻合口漏及吻合口出血。术后随访3～20个月,无局部复发及远处转移。结论:免切割闭合器单吻合器法行腹腔镜全直肠系膜切除术治疗早中期直肠癌是安全、可行的,可降低医疗费用。     

应用镍钛记忆合金加压吻合环进行肠道吻合的前瞻性研究

目的 探讨应用一种新型镍钛记忆合金加压吻合环(CAR)进行结直肠癌手术肠道吻合的可行性和安全性.方法 前瞻性随机对照分析2010年5月至12月福建医科大学附属第一医院收治的83例行肠道吻合的结直肠癌患者的临床资料.将患者按随机数字表法分成CAR组(41例)和金属钉吻合器组(42例),分别采用CAR或金属钉吻合器行肠道吻合,观察两组患者手术时间、术后肛门排气及排便时间、住院时间、术后愈合情况、术后有无与吻合相关的并发症发生,CAR组患者吻合环的排出时间等.计量资料采用t检验,计数资料采用x2检验.结果 CAR组和金属钉吻合器组患者的平均手术时间分别为( 122±25) min和(128±30) min；吻合口瘘发生率分别为5％ (2/41)和7％ (3/42),吻合口瘘患者经行手术或保守治疗痊愈；两组患者平均手术时间,术后肛门排气、排便时间,住院时间及吻合口瘘发生率比较,差异均无统计学意义(t=1.299,0.756,1.636,0.974,x2=0.165,P＞0.05).CAR组患者于术后9～14 d随粪便排出吻合环,术后未发生吻合口狭窄；金属钉吻合器组患者吻合口狭窄发生率为2％( 1/42),两组比较,差异无统计学意义(x2 =0.988,P＞0.05).CAR组患者术后吻合口平滑、完整、愈合良好；金属钉吻合器组患者可见吻合钉残留存吻合口,并有1例形成炎性息肉.结论 使用CAR行结直肠癌手术肠道吻合是一种简便且安全有效的方法.     

应用吻合器治疗严重脱垂性痔病的临床研究(附162例报告)

目的探讨应用吻合器治疗严重脱垂性痔的临床效果。方法对162例严重脱垂痔应用吻合器作直肠下端粘膜及粘膜下组织环形切除术(即PPH手术)进行回顾性分析。结果平均手术时间17．5分钟，术后平均住院时间3天。经治疗162例病人脱出肛门外痔核全部回缩，原有症状缓解；仅1例术后第七天复发。62例在切割吻合后发现有搏动性出血。术后13例继发出血。有57例患者出现了肛门疼痛，约1／3需要止痛治疗。45例出现尿潴留，需要导尿。19例出现了术后肛门坠胀感，其中9例较严重，影响正常生活。本组患者中无感染、肛门感觉性失禁及直肠阴道瘘的发生。本组术后随访2—29个月效果良好。结论应用吻合器行PPH术治疗严重脱垂性痔这一新手术，具有疗效好，创伤小，恢复快，安全的优点。手术操作中荷包缝合的好坏对手术效果及并发症的产生有直接影响。     

Intracorporeal colorectal anastomosis following laparoscopic left colon resection

Background: The aim of this study was to assess the impact of an intracorporeal double-stapled colorectal anastomosis upon the outcome of laparoscopic left colon resection. Methods: Fifty-four selected patients underwent elective laparoscopic left colon resection for benign disease. Once resection was completed, a 33-mm suprapubic port allowed insertion of the anvil of a circular stapler into the colon, which was closed by a handsewn purse-string suture using the T-needle technique. The circular stapler was passed transanally to perform a double-stapled anastomosis. Specimens were delivered in a plastic bag via the suprapubic port. Results: There were no deaths. Minor intraoperative and postoperative complications occurred in 3.7% and 9.2% of the patients, respectively. Median operating time was 125 min (range 80–210 min). Complete proximal and distal doughnuts were obtained in all patients and anastomoses were all methylene blue tight. Median hospital stay was 4 (range 3–7) days. Conclusions: Fashioning double-stapled colorectal anastomoses intracorporeally is feasable and safe. Received: 26 March 1996/Accepted: 9 September 1996     

Predicting conversion in laparoscopic colorectal surgery

Background: Laparoscopic colorectal surgery has clear advantages over open surgery; however, the effectiveness of the approach depends on the conversion rate. The objective of this work was to prospectively validate a model that would predict conversion in laparoscopic colorectal surgery. Methods: A simple clinical model for predicting conversion in laparoscopic colorectal surgery was previously developed based on a multivariable logistic regression analysis of 367 procedures. This model was applied prospectively to a follow-up group of 248 procedures by the same team, including 54 procedures performed by one new fellowship-trained surgeon. Results: Patients in the follow-up group were more likely to have cancer (56% vs 44%, p = 0.007) and were more obese (median, 71.0 vs 66.0 kg; p < 0.001). The rate of conversion in the follow-up group was unchanged (8.9% vs 9.0%, p > 0.05). Despite expected trends toward increasing risk of conversion with weight level (<60 kg, 6.8%; 60–<90 kg, 9.0%; >90 kg, 12.1%; p > 0.05) and malignancy (10.1% vs 7.3%, p > 0.05), the model did not distinguish well between groups at risk for conversion. Contrary to the model, however, the fellowship-trained surgeon had a conversion rate that was not higher than that of the other, more experienced surgeons (7.3% vs 9.3%, p > 0.05) even though he was less experienced, and operating on patients who were more obese (median, 75.0 vs 70 kg; p = 0.02) and more likely to have cancer (59% vs 55%, p > 0.05). Recalculated conversion scores that excluded the inexperience point for the fellowship-trained surgeon showed a good fit for the model. Considering the original and follow-up experience together (615 cases), the model clearly stratifies patients into low (0 points), medium (1–2 points), and high risk (3–4 points) for conversion, with respective rates of 2.9%, 8.1%, and 20% (p = 0.001). Conclusion: This model appears to be a valid predictor of conversion to open surgery. Fellowship training may provide sufficient experience so that learning curve issues are redundant in early practice. This model now requires validation by other centers. Presented at the combined meeting of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES) and the 8th World Congress of Endoscopic Surgery, New York, NY, USA, 13–16 March 2002     

An initial comparative study of two techniques of laparoscopic colonic anastomosis and mesenteric defect closure

Laparoscopic colon and rectal surgery is still in its nascent stages of development. The ease, efficacy, and safety of intracorporeal mechanical colonic anastomosis are contingent upon expensive stapling devices. Although mobilization and mesenteric division are feasible, a method of inexpensive rapid anastomosis is not. A single inexpensive multifire stapler which could be used both to fashion the anastomosis and to close the mesenteric defect would be ideal. Therefore, this prospective randomized study was undertaken to compare the clinical and functional results of laparoscopic colotomy closure performed using the Endopath EMS hernia stapler (EMS; Ethicon Endosurgery Inc., Cincinnati, OH) to results of using standard two-layer hand suturing (HS). Both the colotomy itself and the mesenteric defect closure sites were included in the randomization and analysis. The abdominal cavity was assessed for evidence of anastomotic leakage, abscess, and adhesion formation. In addition, radiographic luminal diameter, bursting strength, and histology were evaluated. Eight healthy pigs were randomized to either the EMS (N=4) or HS (N=4). There was no evidence of leakage, abscesses, or adhesion formation in either group; however, the mesenteric defect revealed more scarring in the HS than in the EMS animals. There were no significant differences in either luminal diameter (HS: mean=0.92 cm; EMS: mean=0.91 cm) or bursting strength (HS: mean=171 mm Hg; EMS: mean=157 mm Hg) (P>0.05). Histologic analysis also demonstrated no difference in inflammation, necrosis, or fibrosis. This study suggests that this technique can be safely applied to both colotomy closure and mesenteric defect repair. Clinical, histopathologic, and functional results after EMS closure are comparable to standard (HS) closure. Reproduction of this inexpensive means of safe, cost-effective, intracorporeal anastomosis and mesenteric closure should be pursued in human clinical trials.     

腹腔镜下结直肠癌及肝转移癌一期同时切除术的临床应用

目的：探讨腹腔镜下一期同时切除结直肠癌和肝转移癌的安全性及可行性。方法回顾性分析2011年1月至2013年10月期间在中山大学孙逸仙纪念医院完成的腹腔镜下结直肠癌和肝转移癌一期同时切除手术的11例患者的病例资料,对该术式的可行性（中转开腹率、手术时间及术中出血量）、安全性（术后并发症）及疗效（术后恢复、复发及生存情况）进行评估。结果全组11例患者手术均取得成功,无中转开腹病例。手术时间（284．6±28．8） min,术中出血量（322．7±75．4） ml,术后肛门排气时间（2．9±0．7） d,术后住院时间（12．3±1．9） d。全组患者术后未出现肠瘘、胆瘘、腹腔大出血、腹腔感染及肝功能衰竭等并发症。术后随访时间3～35月,除1例患者因肿瘤转移死亡外,其余病例未见肿瘤复发。结论对于经过选择的合适病例,腹腔镜下同时切除结直肠癌和肝转移癌是安全、可行的。     

完全腹腔镜结直肠切除术20例报告

目的:探讨完全腹腔镜结直肠切除术的手术方法、适应证及其安全性和应用价值。方法:回顾分析2007年4月至2008年11月我院为20例患者行完全腹腔镜结直肠切除术的临床资料。结果:行完全腹腔镜全结肠部分直肠切除术2例,次全结肠切除术1例,乙状结肠癌根治性切除术6例,乙状结肠癌姑息性切除术1例,直肠癌根治性切除术10例。术中平均出血116.5ml,平均手术时间183.5min,术后平均住院8d,无严重并发症发生。随访1～19个月无复发。结论:完全腹腔镜结直肠切除术切口小,应用于全结肠部分直肠切除、乙状结肠癌、直肠癌根治术,近期疗效良好,远期疗效有待研究。     

Transumbilical single-incision laparoscopic intracorporeal anastomosis for gastrojejunostomy: case report

Background  Laparoscopic gastrojejunostomy allows effective palliation and rapid recovery for the patient with limited survival due to advanced pancreatic cancer presenting with gastric outlet obstruction. Transumbilical single-incision laparoscopic surgery (SILS) offers excellent cosmetic results and may be associated with decreased postoperative pain, reduced need for analgesia, and thus accelerated recovery. The authors report the first transumbilical single-incision laparoscopic intracorporeal anastomosis for gastrojejunostomy. Methods  Preliminary experience with transumbilical single-incision, intracorporeal anastomosis for gastrojejunostomy for a patient with gastric outlet obstruction caused by advanced pancreatic cancer is reported. Results  Transumbilical single-incision laparoscopic intracorporeal anastomosis for gastrojejunostomy was performed with a linear endoscopic stapler using an omega loop. The operative time was 117 min. No intra- or postoperative complications were recorded. Conclusion  Transumbilical single-incision laparoscopic intracorporeal anastomoses are feasible using the endoscopic linear stapler. Transumbilical single-incision gastrojejunostomy for gastric outlet obstruction may improve cosmetic results and allow accelerated recovery for patients with limited survival. This anastomosis technique of single-incision laparoscopic surgery for other digestive tract procedures needs further evaluation.     

单吻合器法腹腔镜全直肠系膜切除术与开腹手术的对照研究

目的比较单吻合器法腹腔镜全直肠系膜切除术(TME)与开腹TME的临床效果。 方法回顾性对比分析2014年1月至2015年1月解放军海军安庆医院普通外科收治的39例行TME患者的临床资料,其中单吻合器法腹腔镜TME患者15例(腹腔镜组),行开腹TME患者24例(开腹组)。 结果两组患者均顺利完成手术,腹腔镜组的术后肛门排气时间、术中出血量、疼痛评分[(2.7±0.8)d、(45.7±24.6)ml、(2.3±0.9)分]明显低于开腹组[(4.4±1.2)d、(121.7±137.3)ml、(6.4±1.5)分],差异有统计学意义(P<0.05)。腹腔镜组的住院费用、清扫淋巴结数量、术后住院时间[(26 187.1±7 484.6)元、(9.9±5.6)枚、(14.6±4.6)d]与开腹组[(22 466.2±4 972.8)元、(9.0±4.8)枚、(16.2±4.8)d] 比较,差异无统计学意义(P>0.05);腹腔镜组的手术时间(252.3±54.2)min比开腹组(147.3±41.3)min长,差异有统计学意义(P<0.05)。 结论单吻合器法腹腔镜TME具有安全、微创、经济等优势,能够取得与开腹手术同样的肿瘤根治性效果,在经济欠发达地区很有实用价值。     

结直肠癌并肠梗阻一期切除吻合器吻合效果分析

目的 探讨结直肠癌并肠梗阻一期切除吻合器吻合临床疗效.方法 2005年1月至2011年6月间收治结直肠癌并肠梗阻患者72例,行肿瘤根治性切除,吻合器一期切除吻合.结果 72例患者中右半结肠癌28例,左半结肠癌24例,直肠癌20例,均一期切除吻合成功,未发生吻合口漏.治愈68例(94.4%),围手术期死亡4例(5.6%),术后发生严重并发症12例(16.7%).68例患者均获随访,随访时间0.5～5年,病死率55.9%(38/68);1、3、5年生存率分别为:91.2%(62/68)、73.5%(50/68)和44.1%(30/68).结论 结肠癌并肠梗阻行肿瘤根治性切除,吻合器一期切除吻合安全、可靠、省时,是提高吻合成功率,减少吻合口漏的方法之一.     

A novel single-port laparoscopic operation for colorectal cancer with transanal specimen extraction: a comparative study

Background

Extension of a single incision for the purpose of specimen extraction in single-port laparoscopic surgery (SPLS) can undermine the merits of SPLS, either by hurting cosmesis or by increasing wound morbidity.

Methods

We retrospectively analyzed the clinical outcomes of patients undergoing SPLS sigmoidectomy, either with transanal specimen extraction (TASE, n = 15) or transumbilical specimen extraction (TUSE, n = 68), for colorectal cancer between March 2009 and March 2013. The inclusion criterion was a tumor diameter of ≤ 5 cm. The median follow-up was 93 months (range 13 – 149).

Results

Most of intraoperative and postoperative variables were comparable between the two groups, except for lengthening of operation time in TASE (287 ± 87 min vs. 226 ± 78 min, P = 0.011). TUSE did not lengthen the duration of postoperative recovery, hospital stay, or pain, or increase the incidence of postoperative complications. Whereas TUSE showed 8.8% (6/68) of wound-related complications, TASE did not show wound-related complications during follow-up period (P = 0.586).

Conclusion

With the exception of a prolonged operation time, TASE showed equivalent surgical outcomes as TUSE in SPLS sigmoidectomy. Thus, the implement of TASE is expected to provide one way of reducing wound-related complications in SPLS in patients with a tumor diameter of ≤5 cm.     

Laparoscopy-assisted distal gastrectomy with intracorporeal Billroth I stapled anastomosis using a hand access device for patients with gastric cancer

Background Billroth I gastroduodenostomy is an anastomotic procedure used widely after gastric resection for distal gastric cancer. As laparoscopy-assisted distal gastrectomy (LADG) gains increasing popularity, various techniques of laparoscopic gastroduodenal anastomosis are being introduced. Methods To investigate the feasibility and benefit of their novel surgical technique of intracorporeal Billroth I stapled anastomosis using a hand access device (IBISA-HAD), the authors performed LADG using IBISA-HAD for 23 patients with distal gastric cancer and LADG using minilaparotomy Billroth I stapled anastomosis (MLBISA) for 10 patients. Results The time required for the anastomosis procedure of IBISA-HAD was 45.5 ± 12.0 min, and the operative time, perioperative transfusion, and hospital stay were not significantly different between IBISA-HAD and MLBISA. The IBISA-HAD procedure provided a markedly enhanced vision of the stapling process, leading to less wound retraction and extension than MLBISA. Conclusion The IBISA-HAD technique can provide a markedly enhanced view of the stapling procedure with the help of a current state-of-art laparoscopy system. The authors believe that this novel technique can guide an accurate laparoscopic anastomosis for the surgeon dealing with obese patients who have distal gastric cancer.     

腹腔镜低位直肠癌根治套入式吻合保肛术的临床应用

目的 探讨腹腔镜低位直肠癌根治套入式吻合保肛术式的安全性和可行性.方法 2011年3～4月间北京军区北京总医院对5例低位直肠癌患者施行腹腔镜低位直肠癌经肛门切除套入式吻合保肛术.用超声刀完成肠系膜根部周围淋巴结清扫,肠系膜下动静脉根部结扎切断,直肠游离至尾骨尖肿瘤远端5 cm;采用5针悬吊法暴露肛门术野,距齿状线上1 cm处环形切开,沿黏膜下锐性向上剥离至肛提肌平面,切断直肠,将直肠肿瘤及远端乙状结肠一并从肛门移出体外切除,行套入式近端结肠全层与直肠黏膜及黏膜下吻合.结果 5例患者腹腔镜手术均获成功,平均手术时间178 min,平均术中出血量76 ml;平均淋巴结检出数目14枚.术后3 d肠蠕动恢复,无一例出现术后并发症,腹部及肛门未见手术切口及明显瘢痕,平均术后住院时间12 d.结论 腹腔镜低位直肠癌根治套入式吻合保肛术安全、可行,腹部无手术切口.

Abstract：

Objective To investigate the safety, feasibility and clinical outcomes of laparoscopic sphincter-preserving proctectomy for low rectal cancer using transanal telescopic anastomosis. Methods Five patients underwent laparoscopic sphincter-preserving proctectomy for low rectal cancer using transanal telescopic anastomosis between March 2011 and April 2011 at the General Hospital of Beijing Military Command. After lymph node dissection around the mesentery using harmonic scalpel, the root of the inferior mesenteric vessel was ligated and transected. Rectal dissection was further carried out until 5 cm distal to the lower margin of the tumor. A circumferential incision was made 1.0 cm above the dentate line using 5 support stitches for exposure. The submucous layer was striped upward to the level of the levator ani, and rectum was transected. Rectum and sigmoid colon were extracted transanally and removed. Finally, colonanal anastomosis was made using telescopic technique. Results Five patients underwent the procedure successfully. The mean operative time was 178 minutes. The mean intraoperative blood loss was 76 ml. The mean lymph nodes retrieval was 14. Bowel function recovered after a mean of 3 days. There were no postoperative complications. No obvious scars were seen in the abdomen or the anus. The mean hospital stay was 12 days. After one year of follow-up, all the patients survived cancer-free. Conclusions Laparoscopic anterior resection with sphincter preservation by transanal telescopic anastomosis for low rectal cancer is feasible and safe. Abdominal incision is minimal. However, the long-term outcomes require further investigation.