Intraoperative endoscopy for laparoscopic Roux-en-Y gastric bypass: leak test and beyond

American society for metabolic and bariatric surgery: intra-operative care pathway for minimally invasive Roux-en-Y gastric bypass

BACKGROUND

Clinical care pathways help guide and provide structure to clinicians and providers to improve healthcare delivery and quality. The Quality Improvement and Patient Safety Committee (QIPS) of the American Society for Metabolic and Bariatric Surgery (ASMBS) has previously published care pathways for the performance of laparoscopic sleeve gastrectomy (LSG) and pre-operative care of patients undergoing Roux-en-Y gastric bypass (RYGB).

OBJECTIVE

This current RYGB care pathway was created to address intraoperative care, defined as care occurring on the day of surgery from the preoperative holding area, through the operating room, and into the postanesthesia care unit (PACU).

METHODS

PubMed queries were performed from January 2001 to December 2019 and reviewed according to Level of Evidence regarding specific key questions developed by the committee.

RESULTS

Evidence-based recommendations are made for care of patients undergoing RYGB including the pre-operative holding area, intra-operative management and performance of RYGB, and concurrent procedures.

CONCLUSIONS

This document may provide guidance based on recent evidence to bariatric surgeons and providers for the intra-operative care for minimally invasive RYGB.

A comparison of the postoperative outcomes between intraoperative leak testing and no intraoperative leak testing for gastric cancer surgery: a systematic review and meta-analysis

BACKGROUND

Postoperative anastomotic leakage (PAL) is a serious complication of gastric cancer surgery. Although perioperative management has made considerable progress, anastomotic leakage (AL) cannot always be avoided. The purpose of this study is to evaluate whether intraoperative leak testing (IOLT) can reduce the incidence of PAL and other postoperative outcomes in gastric cancer surgery.

MATERIALS AND METHODS

In this meta-analysis, we searched the PubMed, Embase, and Cochrane Library databases for clinical trials to assess the application of IOLT in gastric cancer surgery. All patients underwent laparoscopic radical gastrectomy for gastric cancer surgery. Studies comparing the postoperative outcomes of IOLT and no intraoperative leak testing (NIOLT) were included. Quality assessment, heterogeneity, risk of bias, and the level of evidence of the included studies were evaluated. PAL, anastomotic-related complications, 30-day mortality, and reoperation rates were compared between the IOLT and NIOLT group.

RESULTS

Our literature search returned 721 results, from which six trials (a total of 1,666 patients) were included in our meta-analysis. Statistical heterogeneity was low. The primary outcome was PAL. IOLT reduced the incidence of PAL [2.09% vs 6.68%; (RR = 0.31, 95% Cl 0.19-0.53, P < 0.0001]. Anastomotic-related complications, which included bleeding, leakage, and stricture, were significantly higher in the NIOLT group than in the IOLT group [3.24% VS 10.85%; RR = 0.30, 95% Cl 0.18-0.53, P < 0.0001]. Moreover, IOLT was associated with lower reoperation rates [0.94% vs 6.83%; RR = 0.18, 95% CI 0.07-0.43, P = 0.0002].

CONCLUSION

Considering the observed lower incidence of postoperative anastomotic leakage (PAL), anastomotic-related complications, and reoperation rates, IOLT appears to be a promising option for gastric cancer surgery. It warrants further study before potential inclusion in future clinical guidelines.

Outcomes of SADI and OAGB Compared to RYGB from the Metabolic and Bariatric Surgery Quality Improvement Program: The North American Experience

BACKGROUND

Rapid adoption of sleeve gastrectomy (SG) in the last decade aptly reflects the desire of patients and surgeons for alternatives to RYGB and DS. While SG provides good outcomes, other options that address specific patient needs are warranted. Recently approved by ASMBS, SADI, and OAGB have garnered increasing interest due to their single anastomosis technique.

METHODS

Using the Metabolic and Bariatric Surgery Quality Improvement Program database, we examined laparoscopic and robotic cases from 2018 to 2021 to understand the percentage of primary bariatric surgery cases that are SADI and OAGB. We used coarsened exact matching to match patients who underwent SADI or OAGB to patients who underwent Roux-en-Y gastric bypass (RYGB). We examined outcomes of matched patients using logistic regression.

RESULTS

Of the 667,979 patients that underwent bariatric-metabolic surgery, 1326 (0.2%) underwent SADI, and 2541 (0.4%) underwent OAGB. SADI was not identified in the database until 2020. In 2020, there were 487 SADI procedures compared to 839 in 2021. From 2018 to 2021, OAGBs went from 149 to 940. Compared with RYGB, SADI was associated with higher rates of anastomotic or staple line leak (OR 2.21 (95% CI 1.08-4.53)) and sepsis (OR 3.62 (95% CI 1.62-8.12)). Compared with RYGB, OAGB was associated with lower rates of gastrointestinal bleeding (OR 0.29 (95% CI 0.12-0.71)) and bowel obstruction (OR 0.10 (95% CI 0.02-0.39)). Of note, there were no differences between these procedures and RYGB for 30-day mortality.

CONCLUSION

More SADIs and OAGBs are being performed. However, there were higher complication rates associated with the SADI procedure. Further studies will be needed to better understand the key drivers for these outcomes.

Intraoperative Endoscopy as an Adjuvant to Minimally Invasive Surgery in Pediatrics

Background: Minimally invasive surgery has a different visual and tactile perception compared with conventional surgery, which could lead to complications, especially in complex procedures. In these cases, flexible endoscopy can facilitate and prevent complications in minimally invasive procedures in children. The study aimed to clarify the utility of intraoperative endoscopy as an adjuvant to minimally invasive surgery in children. Materials and Methods: This retrospective study reviewed the medical records of pediatric patients who had undergone endoscopy during a minimally invasive surgery to treat an upper digestive pathology between January 2000 and December 2020. Results: The study included 83 patients who underwent a laparoscopic procedure with simultaneous endoscopy. The diagnosis was peptic stenosis in 9 patients, achalasia in 23, congenital embryonic tracheobronchial remnants in 4, re-fundoplication in 42, esophageal duplication in 2, superior mesenteric artery syndrome in 2, and giant gastric hemangioma in 1 patient. With adjuvant endoscopy, 7 digestive perforations were noted, 11 cases of short esophagus were diagnosed, and the permeability of the anastomosis was confirmed in 6 cases. No complications were related with the endoscopy procedures. Discussion: Minimally invasive surgery has a few special and tactile limitations that can lead to complications in certain procedures. Simultaneous digestive endoscopy in the upper gastrointestinal tract facilitates organ identification and dissection. Conclusion: Digestive endoscopy is an excellent adjunct to minimally invasive surgery in children because it facilitates and identifies complications and ensures safer minimally invasive surgeries. Future prospective studies are required to assess this conclusion.

A Comprehensive Review of Endoscopic Management of Sleeve Gastrectomy Leaks

BACKGROUND

Bariatric surgery leaks result in significant morbidity and mortality. Experts report variable therapeutic approaches, without uniform guidelines or consensus.

OBJECTIVE

To review the pathogenesis, risk factors, prevention, and treatment of gastric sleeve leaks, with a focus on endoscopic approaches. In addition, the efficacy and success rates of different treatment modalities are assessed.

DESIGN

A comprehensive review was conducted using a thorough literature search of 5 online electronic databases (PubMed, PubMed Central, Cochrane, EMBASE, and Web of Science) from the time of their inception through March 2020. Studies evaluating gastric sleeve leaks were included. MeSH terms related to "endoscopic," "leak," "sleeve," "gastrectomy," "anastomotic," and "bariatric" were applied to a highly sensitive search strategy. The main outcomes were epidemiology, pathophysiology, diagnosis, treatment, and outcomes.

RESULTS

Literature search yielded 2418 studies of which 438 were incorporated into the review. Shock and peritonitis necessitate early surgical intervention for leaks. Endoscopic therapies in acute and early leaks involve modalities with a focus on one of: (i) defect closure, (ii) wall diversion, or (iii) wall exclusion. Surgical revision is required if endoscopic therapies fail to control leaks after 6 months. Chronic leaks require one or more endoscopic, radiologic, or surgical approaches for fluid collection drainage to facilitate adequate healing. Success rates depend on provider and center expertise.

CONCLUSION

Endoscopic management of leaks post sleeve gastrectomy is a minimally invasive and effective alternative to surgery. Their effect may vary based on clinical presentation, timing or leak morphology, and should be tailored to the appropriate endoscopic modality of treatment.

Endoscopy Used as Provocative Testing in Bariatric Surgery: An Analysis of the Texas Public Use Data File

Background

Many bariatric surgeons test the anastomosis and staple lines with some sort of provocative test. This can take the form of an air leak test with a nasogastric tube with methylene blue dye or with an endoscopy. The State Department of Health Statistics in Texas tracks outcomes using the Texas Public Use Data File (PUDF).

Methods

We queried the Texas Inpatient and Outpatient PUDFs for 2013 to 2017 to examine the number of bariatric surgeries with endoscopy performed at the same time. We used the International Classification of Diseases Clinical Modification Version 9 (ICD-9-CM) and ICD-10 procedure codes and Current Procedural Terminology for Sleeve Gastrectomy (SG) and laparoscopic Roux-en-Y gastric bypass (LRYGB) and endoscopy, and the ICD-9-CM and ICD-10 diagnosis codes for morbid obesity.

Results

There were 74,075 SG reported in the Texas Inpatient and Outpatient PUDF for the years 2013-2017. Of the SG performed, 5,521 (7.4%) had an intraoperative endoscopy. For the 19,192 LRYGB reported, 1640 (8.6%) underwent LRYGB + endoscopy. This was broken down by SG only vs SG + endoscopy and LRYGB only vs LRYGB + endoscopy. Overall, SG + endoscopy had a significantly shorter length of stay (LOS) vs LRYGB + endoscopy at 1.74 d vs 2.34 d (P < .001) and a significantly less cost of $71,685 vs $91,093 (P < .001).

Conclusions

A small percentage of SG and LRYGB patients underwent endoscopy for provocative testing over the study period. Provocative testing with endoscopy costs more for SG and LRYGB and was associated with a shorter LOS.

30-Day Outcomes After Intraoperative Leak Testing for Bariatric Surgery Patients

BACKGROUND

Intraoperative testing of anastomoses and staples lines is commonly performed to minimize the risk of postoperative leaks in bariatric surgery, but its impact is unclear. The aim of this study was to determine the association between leak testing and 30-d postoperative leak, bleed, reoperation, and readmission rates for patients undergoing laparoscopic sleeve gastrectomy (LSG) or Roux-en-Y gastric bypass (RYGB).

METHODS

This is a retrospective observational study utilizing 2015-2016 data from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program database. Postoperative outcomes were compared using χ² test. Multivariable logistic regression was used to identify factors associated with 30-d outcomes.

RESULTS

We included 237,081 patients. Leak testing was performed on 73.0% and 92.1% of LSG and RYGB patients, respectively. LSG was associated with lower rates of leak, bleed, reoperation, and readmission than RYGB. On multivariable analysis, intraoperative leak testing was associated with increased rates of postoperative leak for LSG and RYGB (OR 1.48 and 1.90, respectively) and lower rates of bleed for LSG (OR 0.76). There were no significant associations between leak testing and rates of reoperation or readmission.

CONCLUSIONS

Use of intraoperative leak testing was not associated with improved outcomes for either LSG or RYGB. A prospective trial investigating leak testing is warranted to better elucidate its impact.

Does intraoperative endoscopy decrease complications after bariatric surgery? Analysis of American College of Surgeons National Surgical Quality Improvement Program database

BACKGROUND

Intraoperative endoscopy (IOE) has been proposed to decrease serious complications following bariatric surgeries such as leaks, bleeding, and stenosis. Such complications can lead to sepsis and eventually can be fatal. We aim to compare major postoperative complications in patients with and without IOE.

METHODS

Data from the American College of Surgeons National Surgical Quality Improvement Program database years 2011 till 2016 were used to identify laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB) patients. We compared outcomes of IOE and non-IOE using bivariate and multivariate analysis. Thirty-day outcomes included sepsis, organ space infection, unplanned reoperations, unplanned readmissions, prolonged hospital stay, bleeding, and mortality.

RESULTS

Out of 62,805 cases of LSG and 50,047 cases of LRYGB, 17.9%, and 19.7% had IOE, respectively. Endoscopy-assisted LSG was associated with a decrease in sepsis [0.37% vs. 0.21%, adjusted odds ratio (AOR) = 0.55 (0.36, 0.84)], unplanned reoperation [0.58% vs. 0.38%, AOR = 0.61 (0.44, 0.85)], prolonged hospital stay [14.9% vs. 14.0%, AOR = 0.87 (0.82, 0.92)], and composite complications [1.43% vs. 1.17%, AOR = 0.78 (0.65, 0.94)]. Outcomes after LRYGB were similar in both groups, except for decreased prolonged hospital stay with IOE [22.4% vs. 20.6%, AOR = 0.89 (0.84, 0.94)].

CONCLUSIONS

IOE is generally underutilized in baraitric procedures. IOE is associated with decreased risk of postoperative complications particularly sepsis, unplanned reoperations, prolonged hospital stay, and composite complications after LSG; and hospital stay after LRYGB. Large multicenter prospective studies are needed to explore the benefits of IOE in bariatric surgery, particularly the intermediate or long-term benefits.

Randomized controlled trial of monopolar cautery versus clips for staple line bleeding control in Roux-en-Y gastric bypass

BACKGROUND

Bleeding from the staple line is a rare but serious problem following bariatric surgery. Staple line bleeding control (SLBC) can be achieved in different ways such as the application of sutures, clips, glue or buttressing materials over the staple line. Cauterization alone is generally not preferred due to concerns about debilitating the staple line.

OBJECTIVES

The aim of this study was to compare the clip and monopolar cauterization methods for SLBC in laparoscopic Roux-en-Y gastric bypass.

SETTING

University hospital.

METHODS

A total of 70 morbidly obese patients were randomized into two groups. Patients with previous upper gastrointestinal surgery, re-do procedures and open surgeries were excluded. Their demographic characteristics, intraoperative and postoperative outcomes were examined.

RESULTS

A total of 489 SLBC interventions (274 clips and 215 cauterizations) were performed after 280 stapling applications. SLBC intervention number and location, additional trocar requirement, blood loss and operation time were not different between the groups. In the clip group, two patients required monopolar cauterization when clipping failed. No intraabdominal bleeding or gastrointestinal leakage was seen in any group. Postoperative gastrointestinal hemorrhage was seen in three patients, two in the clip group and one in the cautery group. There was no difference between the groups in terms of postoperative pain score, abdominal drainage amount, hemoglobin level alteration, morbidity or length of stay.

CONCLUSIONS

In laparoscopic Roux-en-Y gastric bypass, monopolar cauterization for SLBC can be used instead of clipping. It appears that monopolar cautery is a safe and effective approach for SLBC in laparoscopic Roux-en-Y gastric bypass.

Intraoperative endoscopy prevents technical defect related leaks in laparoscopic Roux-en-Y gastric bypass: A randomized control trial

BACKGROUND

Postoperative anastomotic leaks, bleeding and stenosis are major causes of morbidity after laparoscopic Roux-en-Y gastric bypass (LRYGB). Retrospective studies suggest that intraoperative endoscopy reduces the incidence of these complications.

METHODS

We conducted a prospective randomized controlled trial in a single institution between March 2013 and January 2016. Patients were assigned to one of two groups: LRYGB with Intraoperative Endoscopy (IOE) or LRYGB without IOE. Patient selection criteria were morbidly obese patients, 18 years or older who were candidates to LRYGB. The primary outcome was the frequency of technical defect related anastomotic leaks. Secondary outcomes were operative time, length of hospital stay, anastomotic related complications, reoperations and 30-day mortality.

RESULTS

50 patients were randomly assigned in the IOE group and 50 in the control group. The IOE group had statistically significant lower rate of anastomotic leak (0 vs. 8%, p = .0412), and lower need for reoperation (0 vs. 8%, p = .0412). The IOE group had longer operative time (194.10 vs. 159 min, p < .001), and shorter mean length of hospital stay (2.44 vs. 3.46 days, p = .025). No differences were found in the rate of bleeding of the anastomosis, narrow anastomosis and 30-day mortality.

CONCLUSION

This study specifically provides evidence that air leak test performed by intraoperative endoscopy is superior to simple visual inspection in preventing technical defect related leaks after laparoscopic Roux-en-Y gastric bypass.

A Narrative of Intraoperative Staple Line Leaks and Bleeds During Bariatric Surgery

The primary objective of this review was to assess the incidence of intraoperative staple line leaks and bleeds during laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB). A literature search of MEDLINE®, EMBASE™, and Biosis from January 2010 to November 2014, plus secondary citations extending to 2008, identified 16 relevant articles. For LSG, the incidence of intraoperative leaks and bleeds was as high as 3.93 and 4.07 %, respectively. For LRYGB, leaks occurred in up to 8.26 % and bleeds in 3.45 % of cases. Stapler misfire was commonly cited as a cause. Widespread, precautionary use of staple line reinforcement (SLR), lack of standardized testing, and underreporting suggest the incidence may be underestimated. Published studies were insufficient to address the economic impact of bleeds and leaks or interventions, but development of improved stapler designs that obviate the need for SLR may reduce costs and improve outcomes.

Intraoperative leak testing has no correlation with leak after laparoscopic sleeve gastrectomy

BACKGROUND

Staple line leak is a serious complication of sleeve gastrectomy. Intraoperative methylene blue and air leak tests are routinely used to evaluate for leak; however, the utility of these tests is controversial. We hypothesize that the practice of routine intraoperative leak testing is unnecessary during sleeve gastrectomy.

METHODS

A retrospective cohort study was designed using a prospectively collected database of seven bariatric surgeons from two institutions. All patients who underwent sleeve gastrectomy from March 2012 to November 2014 were included. The performance of intraoperative leak testing and the type of test (air or methylene blue) were based on surgeon preference. Data obtained included BMI, demographics, comorbidity, presence of intraoperative leak test, result of test, and type of test. The primary outcome was leak rate between the leak test (LT) and no leak test (NLT) groups. SAS version 9.4 was used for univariate and multivariate analyses.

RESULTS

A total of 1550 sleeve gastrectomies were included; most were laparoscopic (99.8%), except for one converted and two open cases. Routine intraoperative leak tests were performed in 1329 (85.7%) cases, while 221 (14.3%) did not have LTs. Of the 1329 cases with LTs, there were no positive intraoperative results. Fifteen (1%) patients developed leaks, with no difference in leak rate between the LT and NLT groups (1 vs. 1%, p = 0.999). After adjusting for baseline differences between the groups with a propensity analysis, the observed lack of association between leak and intraoperative leak test remained. In this cohort, leaks presented at a mean of 17.3 days postoperatively (range 1-67 days). Two patients with staple line leaks underwent repeat intraoperative leak testing at leak presentation, and the tests remained negative.

CONCLUSION

Intraoperative leak testing has no correlation with leak due to laparoscopic sleeve gastrectomy and is not predictive of the later development of staple line leak.

Technical factors associated with anastomotic leak after Roux-en-Y gastric bypass

BACKGROUND

Anastomotic leak is one of the most serious complications after Roux-en-Y gastric bypass (RYGB). Our objective was to examine the relationship between technical factors and incidence of clinically relevant anastomotic leak after RYGB in longitudinal assessment of bariatric surgery (LABS). The setting of the study was 11 bariatric centers in the United States, university, and private practice.

METHODS

Patient characteristics, technical factors of surgery, and postoperative outcomes were assessed by trained researchers using standardized protocols. Correlation of surgical factors of patients undergoing RYGB (n = 4444) with the incidence of postoperative anastomotic leak was assessed by univariate χ(2) analysis.

RESULTS

Forty-four participants (1.0%, 95% CI .7%-1.3%) experienced a clinically relevant anastomotic leak. Of these, 39 (89%) underwent abdominal reoperation and 3 (7%) died. Technical factors associated with anastomotic leak were open surgery (P<.0001), revision surgery (P<.0001), and use of an abdominal drain (P = .02). Provocative leak testing, method of gastrojejunostomy, and use of fibrin sealant were not associated with anastomotic leak.

CONCLUSIONS

Anastomotic leak after RYGB was rare (1.0%). Most cases required reintervention; however, the majority (93%) recovered from this event. Open surgery, revision surgery, and routine drain placement were associated with increased leak rate. Some of these findings may be due to differences in preoperative patient risk.

Endoscopy in the early postoperative setting after primary gastrointestinal anastomosis

INTRODUCTION

Gastrointestinal anastomoses may require early evaluation and treatment via flexible endoscopic techniques when complications arise. There is reticence, however, to perform endoscopy given the applied mechanical forces. We aimed to identify the incidence of gastrointestinal anastomotic perforation or disruption resulting from endoscopy performed ≤6 weeks of anastomoses.

METHODS

Review of patients from 2002 to 2013 who underwent flexible endoscopy within 6 weeks of creation of gastrointestinal anastomosis. Exclusion criteria included intraoperative endoscopy, anastomotic perforation prior to endoscopy, and endoscopy remote from the anastomotic site. Data are presented as median (interquartile range; IQR) or percentages as appropriate.

RESULTS

Twenty-four patients met our criteria (age 69 years [IQR 54-77], 54% men]). Endoscopy was performed at a median postoperative time of 18 days (IQR 8-30). Indications for endoscopy included bleeding (66%), obstruction (13%), pain (13%), concern for pancreatic duct leak (4%), and concern for ischemia (4%). Six patients underwent therapeutic endoscopic procedures including coagulation (8%), balloon dilation (8%), tube decompression (8%), and stent placement (4%). There were no anastomotic perforations or disruptions as a result of endoscopy.

CONCLUSION

Despite theoretical risks of adverse events of flexible endoscopy in the early postoperative period, no endoscopic perforations or disruptions occurred in recently created surgical anastomoses.

Advances in minimally invasive surgery in pediatric patients

Surgery has changed dramatically over the last several decades. The emergence of MIS has allowed pediatric surgeons to manage critically ill neonates, children, and adolescents with improved outcomes in pain, postoperative course, cosmesis, and return to normal activity. Procedures that were once thought to be too difficult to attempt or even contraindicated in pediatric patients in many instances are now the standard of care. New and emerging techniques, such as single-incision laparoscopy, endoscopy-assisted surgery, robotic surgery, and techniques yet to be developed, all hold and reveal the potential for even further advancement in the management of these patients. The future of MIS in pediatrics is exciting; as long as our primary focus remains centered on developing techniques that limit morbidity and maximize positive outcomes for young patients and their families, the possibilities are both promising and infinite.

Role of intraoperative esophagogastroenteroscopy in minimizing gastrojejunostomy-related morbidity: experience with 2,311 laparoscopic gastric bypasses with linear stapler anastomosis

Background

Anastomotic leaks and strictures of the gastrojejunostomy are a cause of major morbidity following laparoscopic Roux-en-Y gastric bypass (LRYGB). Reported rates of leaks vary between 0 and 5.2 %. This has led bariatric surgeons to use a variety of intraoperative methods to detect incompetent suture lines. The aim of the study was to evaluate the role of intraoperative endoscopy in reducing the rate of postoperative anastomotic complications. The setting of this study is in a community teaching hospital.

Methods

Medical records of 2,311 patients who underwent a LRYGB from 2002 to 2011 were retrospectively reviewed utilizing the hospitals’ bariatric surgery database. Demographics, weight, body mass index, intraoperative endoscopy results, and postoperative outcomes within 90 days after surgery were analyzed.

Results

Endoscopy was attempted in 2,311 patients and completed in 2,308 (99.9 %). Intraoperative leak was detected in 80 (3.5 %) patients; suture line was reinforced in 46 patients (2 %), while in the other 34 patients the leak was transient at only high insufflation pressure. Postoperative clinical leaks were detected in four cases (0.2 %) two of which had initial leaks intraoperatively. In two cases, the anastomosis was too tight and required reconstruction. Twenty-five patients (1.1 %) developed early postoperative strictures requiring endoscopic dilatation within 90 days. Three patients (0.1 %) had iatrogenic injury at the time of intraoperative endoscopy, all three healed without delayed morbidity.

Conclusions

The routine use of intraoperative endoscopy in LRYGB with the linear stapler anastomosis technique is associated with a complication/failure rate of 0.3 % and low gastrojejunostomy-related morbidity after LRYGB within 90 days (leak rate of 0.2 % and stricture rate of 1.1 %).

Experience with endoscopy and endoscopy-assisted management of pediatric surgical problems: results and lessons

Minimally invasive surgical techniques are becoming increasingly popular within the pediatric population. Flexible endoscopy may enhance or replace existing techniques in the future. Many of the reported benefits of laparoscopy and thoracoscopy may apply to endoscopy and endoscopy-assisted procedures; however, no reports exist as to the application, results, and outcomes for these procedures in children. It was hypothesized that endoscopy is a useful and safe adjunct for pediatric surgical patients. Retrospective review of medical records for patients who underwent endoscopy or endoscopy-assisted operations at two children's hospitals over 3 years (August 31, 2007-August 31, 2010) was completed. During this time period, 30 procedures were performed on 28 patients. Indications for procedure, age, operative technique, operative times, surgical outcomes, complications, and length of stay for each patient were reviewed. Patient age ranged from 3 days to 20 years. Indications for operation included esophageal pathology (13), gastroduodenal pathology (14), pancreatic pseudocyst (2), and displaced sigmoid Chait® (Cook, Inc., Bloomington, IN, USA) tube. Although endoscopy was intended only as an adjunct in all cases, the planned procedure was satisfactorily completed with a purely endoscopic approach in six cases. There were no intraoperative complications, and minor postoperative complications including one stricture requiring dilation, postoperative stridor, and esophageal leak, were each successfully managed conservatively. Endoscopy offers a promising adjunct to more traditional minimally invasive techniques in children. In some cases, endoscopy may offer an alternative to more invasive procedures or eliminate the need for tube thoracostomy or post-procedural contrast studies in some esophageal cases.

The role of upper gastrointestinal endoscopy in treating postoperative complications in bariatric surgery

There are an estimated 500 million obese individuals worldwide. Currently, bariatric surgery has been shown to result in clinically significant weight loss. With increasing demand for bariatric surgery, endoscopic techniques used intra and postoperatively continue to evolve. Endoscopic evaluation of anastomotic integrity following RYGB allows for early detection of anastomotic leaks. Furthermore, endoscopy is a valuable tool to diagnose and treat RYGB postoperative surgical complications such as anastomotic leakage, hemorrhage and stricture formation. Early evidence suggests that endoscopic management of upper gastrointestinal hemorrhage following RYGB is effective. In addition, endoscopic balloon dilatation is able to effectively treat obstruction in the setting of gastrojejunal anastomotic strictures. With successful endoscopic management of these complications, bariatric patients may avoid more invasive surgical procedures.