腹腔镜Roux-en-Y胃旁路术的研究现状

肥胖及肥胖引起的心血管疾病、高血压、高血脂等并发症已成为当今社会很严重的公共卫生问题。1975~2016年,全球大部分地区的肥胖症患病率呈现上升趋势,其中以亚洲地区的上升趋势尤为显著。到2016年,我国已是全世界肥胖症及2型糖尿病患者最多的国家。外科减重手术是目前治疗肥胖症及相关并发症的主要手段,其中应用最为广泛的减重手术为腹腔镜Roux-en-Y胃旁路术(laparoscopic Roux-en-Y gastric bypass,LRYGB)、腹腔镜袖状胃切除术。笔者对LRYGB的研究现状做一综述。     

Laparoscopic Gastric Bypass with Subtotal Gastrectomy for a Super-Obese Patient with Biermer Anemia

Laparoscopic Roux-en-Y gastric bypass (RYGBP) is a common procedure for morbid obesity. After RYGBP, the bypassed stomach is unavailable for follow-up. Biermer anemia is an autoimmune atrophic gastritis inducing vitamin B12 deficiency and it is a risk factor for gastric carcinoma.A 41-year-old woman with a long history of morbid obesity presented with a BMI of 56 kg/m². She had anemia (Hb 9.9 g/dL), and atrophic gastritis was found endoscopically. We performed a laparoscopic RYGBP with subtotal gastrectomy, to avoid the risk of gastric carcinoma in the bypassed stomach.The patient was discharged 9 days after the operation without complication. At 18 months follow-up, her BMI was 39 kg/m² (50% excess weight loss). Laparoscopic RYGBP with subtotal gastrectomy is a safe treatment for morbid obesity, which should be considered for patients with a risk factor for gastric carcinoma.     

单切口经脐腹腔镜胃旁路术与腹腔镜5孔胃旁路术的比较研究

目的腹腔镜胃旁路手术Roux-en-Y已经成为减重手术的金标准,但常规手术常需要5～7个皮肤切口来放置trocar,因此,切口可能会产生不尽患者满意的结果。我们设计了一个治疗病态肥胖的新技术:单切口经脐胃旁路手术(singleincision transumbilical LRYGB,SITU-LRYGB)。本研究比较腹腔镜5孔胃旁路手术(5-port LRYGB)和SITU-LRYGB手术结果与患者满意度。方法 50例重度肥胖(男14例,女36例)分别接受5-port LRYGB(25例)或SITU-LRYGB(25例)。在肚脐上方以Omega形状切口6 cm,在直接可视下、将3个trocar分置于三角形的三角位置入。术中我们使用新设计的肝脏牵引方法———肝悬吊带。结果术后2组皆未出现接口泄漏或出血并发症。SITU组手术时间较5-port LRYGB组长[(99.8±11.1)min vs(67.6±20.5)min,t=6.906,P=0.000]。对术后切口,SITU组有更高的满意度[(4.5±0.6)分vs(4.0±0.7)分,t=2.712,P=0.009]。结论腹腔镜胃旁路手术可以成功地以单切口经脐方式来施行,除了手术时间短与术后恢复良好之外,几乎无瘢痕是手术最让病人满意的地方。     

Cost-effectiveness analysis of laparoscopic gastric bypass, adjustable gastric banding, and nonoperative weight loss interventions

BACKGROUND: Laparoscopic adjustable gastric banding (LAGB) and laparoscopic Roux-en-Y gastric bypass (LRYGB) are the two most commonly performed bariatric procedures. Although both procedures likely reduce healthcare expenditures related to the resolution of co-morbid conditions, they have different rates of perioperative risks and different rates of associated weight loss. We designed a model to evaluate the incremental cost-effectiveness of these procedures compared with nonoperative weight loss interventions and with each other. METHODS: We used a deterministic, payer-perspective model comparing the lifetime expected costs and outcomes of LAGB, LRYGB, and nonoperative treatment. The major endpoints were survival, health-related quality of life, and weight loss. Life expectancy and lifetime medical costs were calculated across age, gender, and body mass index (BMI) strata using previously published data. RESULTS: For both men and women, LRYGB and LAGB were cost-effective at <$25,000/quality-adjusted life-year (QALY) even when evaluating the full range of baseline BMI and estimates of adverse outcomes, weight loss, and costs. For base-case scenarios in men (age 35 y, BMI 40 kg/m(2)), the incremental cost-effectiveness was $11,604/QALY for LAGB compared with $18,543/QALY for LRYGB. For base-case scenarios in women (age 35 y, BMI 40 kg/m(2)), the incremental cost-effectiveness was $8878/QALY for LAGB compared with $14,680/QALY for LRYGB. CONCLUSION: The modeled cost-effectiveness analysis showed that both operative interventions for morbid obesity, LAGB and RYGB, were cost-effective at <$25,000 and that LAGB was more cost-effective than RYGB for all base-case scenarios.     

Re-do Roux-en-Y Gastric Bypass in a Patient with Known Midgut Malrotation

A 40-year-old woman presented with small bowel obstruction caused by an internal hernia through Peterson''s defect. The patient was known to have midgut malrotation (MM) and also had laparoscopic Roux-en-Y gastric bypass for morbid obesity 6 years prior. An open revision of Roux-en-Y gastric bypass was performed as a result of ischemia of alimentary limb. She made a slow but uneventful recovery and was discharged home.MM is a rare congenital anomaly that requires the surgeon to be well aware of the unique variation in anatomy to perform a mirror image of the routine Roux-en-Y gastric bypass.At the end of this case report, we present a short literature review of published data related to MM encountered during Roux-en-Y gastric bypass.     

Learning curve for laparoscopic Roux-en-Y gastric bypass with totally hand-sewn anastomosis

Background Laparoscopic Roux-en-Y gastric bypass (LRYGB) is a challenging operation for the treatment of morbid obesity with well-demonstrated effectiveness in weight lost. There are several variations to the technique.Methods From September 2000 to July 2004, 600 consecutive patients underwent surgery for morbid obesity at our institution. The surgical technique employed was LRYGB with totally hand-sewn gastrojejunal anastomosis (GJA). All patients were considered candidates for laparoscopic approach regardless of age, gender, body mass index (BMI), or previous bariatric or digestive surgery.Results Mean BMI was 44.4 ± 7.6 kg/m². Thirty-two patients had undergone previous failed bariatric procedures. Conversion to an open procedure was necessary in three patients. Seventy-two patients (12%) developed early complications, including 23 (3.8%) leaks at the GJA (eight in the first 18 patients). Mortality rate was 1.1% (one death was related to GJA leakage). Early and late reoperation rates were 5.3 and 1.8%, respectively. Rate plateau of morbidity and mortality was reached after the first 18 patients when the surgical technique was fully standardized.Conclusions LRYGB is a technically demanding procedure for the surgical treatment of morbid obesity with significant morbidity during the learning curve. The learning curve can be soon overcome, reaching a rate plateau of complications after adequate training. Morbidly obese patients should be operated on in expert bariatric surgical laparoscopic units to obtain the best results.     

Alternative operative techniques in laparoscopic Roux-en-Y gastric bypass for morbid obesity.

The only effective treatment for patients with morbid obesity is surgery. Laparoscopic bariatric surgery has become quite popular in attempts to decrease the morbidity associated with laparotomy. In this article, we describe the technical details of laparoscopic Roux-en-Y gastric bypass with three different techniques for creating the 15-cc gastric pouch. These techniques avoid upper endoscopy for the transoral introduction of the 21-mm circular stapler anvil down to the gastric pouch.     

Comparison Between the Results of Laparoscopic Sleeve Gastrectomy and Laparoscopic Roux-en-Y Gastric Bypass in the Indian Population: A Retrospective 1 Year Study

Background  

Laparoscopic sleeve gastrectomy (LSG) is gaining popularity as a procedure for the treatment of morbid obesity. Its indications and long-term results are currently under evaluation. Initially started as a first-stage procedure for superobese patients, it is now emerging as a standalone procedure in Asia and other parts of the world. Early results suggest that, at the end of 1 year, weight loss and resolution of comorbidities with LSG is comparable to laparoscopic Roux-en-Y gastric bypass (LRYGB). Whether LSG alone can replace LRYGB as a standard bariatric procedure is questionable. The aim of this study is to compare the results, resolution of comorbidities, and complications between LSG and LRYGB.     

Utility of Divided Omentum for Preventing Complications Associated with Laparoscopic Gastric Bypass

Background Laparoscopic Roux-en-Y gastric bypass has emerged as a standard surgical treatment for morbid obesity. However, prevention of postoperative complications associated with bariatric surgery is an important consideration. Methods To reduce postoperative complications and achieve adequate body weight loss, we introduce a simple procedure using a divided omentum during laparoscopic Roux-en-Y gastric bypass. The actual aim of this procedure is to prevent leakage from the gastric pouch or anastomosis and the gastro-gastric fistula because of reentry of the alimentary tract. Between February 2002 and April 2007, we performed laparoscopic Roux-en-Y gastric bypass for morbid obesity in 94 patients. In the most recent 83 cases, our simple procedure using a divided omentum was employed. Results These patients comprised 20 males and 63 females, with a mean age of 38 years, and a mean body mass index of 44.1 kg/m². At surgery, the omentum is routinely divided using laparoscopic coagulating shears before performing gastrojejunostomy to reduce the tension on the anastomosis caused by the route of reconstruction. After performing hand-sewn gastrojejunostomy, the left side of the divided omentum is moved cranially and interposed between the gastric pouch and the excluded stomach. The omentum is then sutured from the posterior aspect of the gastric pouch to the anterior side of the anastomosis. Conclusion Our procedure using a divided omentum during bariatric surgery is feasible and safe for obtaining better outcomes without artificial materials. Although the long-term outcome of this technique is still unclear, we believe that it will contribute to decreasing the particular complications related to laparoscopic Roux-en-Y gastric bypass for morbid obesity.     

Laparoscopic Roux-en-Y Gastric Bypass for Morbidly Obese Chinese Patients: Learning Curve,Advocacy and Complications

BACKGROUND: Laparoscopic Roux-en-Y gastric bypass (LRYGB) involves a combination of both restrictive and mal-absorptive mechanisms and has become the procedure of choice for patients with morbid obesity in Western countries. However, its efficacy remains uncertain in Asian populations. We report our pilot experience with LRYGB in a Chinese population. METHODS: Between August 2005 and February 2007, 100 morbidly obese patients received LRYGB. We evaluated the learning curve for the operation, its efficacy in weight reduction, and its postoperative complications. RESULTS: Surgical time reached a plateau after about 50 cases, decreasing from 216 min for the initial 50 patients to 105 min for the final 50. The conversion rate from laparoscopic to open surgery was 2%. The mean percent body mass index loss was 33.9% after 12 months. Twenty-four complications occurred in 18 patients, but most resolved with conservative treatment without mortality. Patients with advanced age (P = 0.04) or hypertension (P = 0.03) were at increased risk for complications leading to prolonged surgical times and hospital stays. The complication rate declined as technical expertise increased. CONCLUSION: In Chinese patients with morbid obesity, LRYGB is promising procedure because of its acceptable learning curve, good efficacy, and low complication rate.     

腹腔镜胃旁路术的并发症及其防治

腹腔镜Roux-en-Y胃旁路手术（LRYGB）治疗病态肥胖,因其疗效快捷、持久而成为减重外科的“金标准”术式。然而,由于其手术操作复杂和学习曲线较长,故具有潜在风险。LRYGB术后并发症分为早期和晚期两类,并发症如果发现不及时或处理不当,可导致严重的后果,甚至死亡。因此,预防和及早诊断LRYGB术后出现的并发症,并及时有效地进行处理,对LRYGB的健康开展具有重要意义。     

Laparoscopic approach to open gastric bypass

BACKGROUND: Gastric bypass is a successful tool in the treatment of morbid obesity. In recent years, laparoscopic Roux-en-Y gastric bypass has gained popularity. However, open bypass is sometimes more suitable for patients who are "superobese." Laparoscopic instrumentation can be used during an open gastric bypass to facilitate dissection, formation of the gastric pouch, and creation of the gastrojejunostomy. METHODS: We describe the use of laparoscopic ultrasonic coagulating shears for dissection during open gastric bypass. Additionally, laparoscopic gastrointestinal anastomosis and end-to-end anastomosis staplers are used for creating bowel anastomoses. CONCLUSIONS: Laparoscopic instrumentation can be useful in the setting of open procedures. Their long handles and jaw design make them ideal for working in the depths of a superobese abdomen.     

Use of robotics during laparoscopic gastric bypass for morbid obesity.

To evaluate the theoretical increased precision offered by utilization of the robotic instrument, we attempted to determine whether incorporation of its use into traditional laparoscopic gastric bypass would duplicate or improve the success of the operation without increasing complications. The Roux-en-Y gastric bypass is the most commonly performed procedure for morbid obesity in the United States. We performed 120 gastric bypass procedures with traditional laparoscopy during a 30-month period. We began introducing the da Vinci Robotic Surgical System into our laparoscopic gastric bypass procedure and evaluated its effectiveness.     

An Unusual Complication of Gastric Bypass: Perforated Duodenal Ulcer

Peptic ulcer in the excluded segment of a gastric bypass has been reported in the literature in only 17 cases.We report a 54-year-old woman with a perforated duodenal ulcer, who had undergone laparoscopic Roux-en-Y gastric bypass surgery for morbid obesity 15 months previously. She was successfully treated by a laparoscopic repair of the perforated duodenal ulcer.     

��ǻ��θ��·����θ��״�г������Ʒ���֢��Ч�Աȷ���

??Laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy for the treatment of obesity: A comparative analysis of therapeutic effect LUAN Xin-yuan??QIN Ming-fang??WANG Zheng-yu??et al. Center of Minimally Invasive Surgery??Tianjin Nankai Hospital??Tianjin 300100??China
Corresponding author??QIN Ming-fang??E-mail??qins88@sina.com
Abstract Objective To compare the efficacy and safety of laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB). Methods From January 2007 to July 2008??64 eligible patients were randomly assigned to LSG group or LRYGB group in Center of Minimally Invasive Surgery??Tianjin Nankai Hospital and were followed up for 5 years. Results A total of 6 patients in LSG group and 4 patients in LRYGB group were lost follow-up. Slightly more major complications were observed in patients undergoing LRYGB (P>0.05). Weight loss in LRYGB group was significantly better than that in LSG group??P<0.05??. No statistical difference was observed in quality of life between the groups at all intervals (P>0.05). At the last follow-up??most comorbidities in both groups were resolved or improved. Conclusion LRYGB and LSG are equally safe and effective in quality of life??improvement or resolution of comorbidities??and LRYGB possesses the superiority in terms of weight loss.     

Treatment of giant hiatal hernia by laparoscopic Roux-en-Y gastric bypass

IntroductionObesity is a risk factor for hiatal hernia. In addition, much higher recurrence rates are reported after standard surgical treatment of hiatal hernia in morbidly obese patients. Laparoscopic Roux-en-Y gastric bypass (LRYGB) is an effective surgical treatment for morbid obesity and is known to effectively control symptoms of gastroesophageal reflux (GERD).Case presentationTwo patients suffering from giant hiatal hernias where a combined LRYGB and hiatal hernia repair (HHR) with mesh was performed are presented in this paper. There were no postoperative complications and at 1 year follow-up, there was no sign of recurrence of the hernia.DiscussionThe gold standard for all symptomatic reflux patients is still surgical correction of the paraesophageal hernia, including complete reduction of the hernia sac, resection of the sac, hiatal closure and fundoplication. However, HHR outcome is adversely affected by higher BMI levels, leading to increased HH recurrence rates in the obese.ConclusionConcomitant giant hiatal hernia repair with LRYGB appears to be safe and feasible. Moreover, LRYGB plus HHR appears to be a good alternative for HH patients suffering from morbid obesity as well than antireflux surgery alone because of the additional benefit of significant weight loss and improvement of obesity related co-morbidity.     

Comparison of totally robotic laparoscopic Roux-en-Y gastric bypass and traditional laparoscopic Roux-en-Y gastric bypass

BACKGROUND: Laparoscopic gastric bypass is a technically demanding operation, especially when hand-sewing is required. Robotics may help facilitate the performance of this difficult operation. This study was undertaken to compare a single surgeon's results using the daVinci Surgical System with those using traditional laparoscopic Roux-en-Y gastric bypass (LRYGB) when the techniques were learned simultaneously. METHODS: From July 2004 to April 2005, the new laparoscopic fellow's first 50 patients were randomized to undergo either LRYGB or totally robotic laparoscopic Roux-en-Y gastric bypass (TRRYGB). Data were collected on patient age, gender, body mass index (BMI), co-morbidities, operative time, complication rates, and length of stay. Student's t test with unequal variances was used for statistical analysis. RESULTS: No significant differences in age, gender, co-morbidities, complication rates, or length of stay were found between the two groups. The mean operating time was significantly shorter for TRRYGB than for LRYGB (130.8 versus 149.4 minutes; P = 0.02), with a significant difference in minutes per BMI (2.94 versus 3.47 min/BMI; P = 0.02). The largest difference was in patients with a BMI >43 kg/m(2), for whom the difference in procedure time was 29.6 minutes (123.5 minutes for TRRYGB versus 153.2 minutes for LRYGB; P = 0.009) and a significant difference in minutes per BMI (2.49 versus 3.24 min/BMI; P = 0.009). CONCLUSION: Our data indicate that the use of the daVinci Surgical System for TRRYGB is safe and feasible. The operating room time is shorter with the use of the robotic system during a surgeon's learning curve, and that decrease is maximized in patients with a larger BMI. TRRYGB may be a better approach to gastric bypass when hand-sewing is required, especially early in a surgeon's experience.     

Reduction in obesity-related comorbidities: is gastric bypass better than sleeve gastrectomy?

Background

Bariatric surgery is currently the most effective treatment for morbid obesity. It provides not only substantial weight loss, but also resolution of obesity-related comorbidities. Laparoscopic sleeve gastrectomy (LSG) has rapidly been gaining in popularity. However, there are limited data on the reduction of obesity-related comorbidities for LSG compared to laparoscopic Roux-en-Y gastric bypass (LRYGB). The aim of this study was to assess the effectiveness of laparoscopic LSG versus LRYGB for the treatment of obesity-related comorbidities.

Methods

A total of 558 patients who underwent either LSG or LRYGB for morbid obesity at the Westchester Medical Center between April 2008 and September 2010 were included. Data were collected prospectively into a computerized database and reviewed for this study. Fisher’s exact test analyses compared 30-day, 6-month, and 1-year outcomes of obesity-related comorbidities.

Results

A total of 558 patients were included in the analysis of obesity-related comorbidity resolution; 200 underwent LSG and 358 underwent LRYGB. After 1 year, 86.2 % of the LSG patients had one or more comorbidities in remission compared to 83.1 % LRYGB patients (P = 0.688). With the exception of GERD (?0.09 vs. 50 %; P < 0.001), similar comorbidity remission rates were observed between LSG and LRYGB for sleep apnea (91.2 vs. 82.8 %; P = 0.338), hyperlipidemia (63 vs. 55.8 %; P = 0.633), hypertension (38.8 vs. 52.9 %; P = 0.062), diabetes (58.6 vs. 65.5 %; P = 0.638), and musculoskeletal disease (66.7 vs. 79.4 %; P = 0.472).

Conclusions

Laparoscopic sleeve gastrectomy markedly improves most obesity-related comorbidities. Compared to LRYGB, LSG may have equal in reducing sleep apnea, hyperlipidemia, hypertension, diabetes, and musculoskeletal disease. LRYGB appears to be more effective at GERD resolution than LSG.     

Effects of Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) on Weight Loss and Biomarker Parameters in Morbidly Obese Patients: A 12-Month Follow-Up

Background  

Laparoscopic Roux-en-Y gastric bypass (LRYGB) is suggested as the gold standard of the surgical techniques for morbid obesity treatment. The aim of this study was to evaluate the weight loss and biomarker parameter changes over a 1-year period following LRYGB in Iranian morbidly obese patients.