Feasibility and Efficiency of Sutureless End Enterostomy by Means of a 3D-Printed Device in a Porcine Model.

Objective. The aim of this study is to present a 3-dimensional (3D)-printed device to simply perform abdominal enterostomy and colostomy. Summary Background Data. Enterostomy and colostomy are frequently performed during abdominal surgery. 3D-printed devices may permit the creation of enterostomy easily. Methods. The device was designed by means of a CAD (computer-aided design) software, Rhinoceros 6 by MC Neel, and manufactured using 3D printers, Factory 2.0 by Omni 3D and Raise 3D N2 Dual Plus by Raise 3D. Colostomy was scheduled on a human cadaver and on 6 Pietrain pigs to test the device and the surgical technique. Results. The test on the cadaver showed that the application of the device was easy. Test on porcine models confirmed that the application of the device was also easy on the living model. The average duration of the surgical procedure was 32 minutes (25-40 minutes). For the female pigs, return to full oral diet and recovery of a normal bowel function was observed at postoperative day 2. The device fell by itself on average on the third day. Until day 10, when euthanasia was practiced, the stoma mucosa had a good coloration indicating a perfect viability of tissues. No complications were observed. Conclusions. This is the first study that describes the use of a 3D-printed device in abdominal surgery. End-type colostomy using a 3D-printed device can be safely and easily performed in an experimental porcine model, without postoperative complications. Further studies are needed to evaluate its utility in the clinical setting.

From Early to Mid-Term Results of Endoscopic Sleeve Gastroplasty: A Retrospective Analysis of a Bariatric Center.

PURPOSE: Global obesity rates have surged, necessitating effective interventions beyond traditional bariatric and metabolic surgery (BMS). Endoscopic Sleeve Gastroplasty (ESG) has emerged as a minimally invasive alternative, addressing limitations of eligibility criteria and patient reluctance associated with BMS. This study aims to present a 3-year experience with ESG, focusing on its mid-term efficacy in weight loss. MATERIALS AND METHODS: A retrospective, single-center study included 143 consecutive ESG patients (BMI > 30 kg/m2 or > 25 kg/m2 with obesity associated-diseases) from February 2019 to March 2023. Data on demographics, comorbidities, operative details, and follow-up outcomes were collected. The primary outcome was %TWL ≥ 15% at 12 months. Secondary outcomes were an optimal clinical response (OCR) at 24 and 36 months defined by %TWL ≥ 10% or %EWL ≥ 25%. RESULTS: ESG demonstrated a mean %TWL of 14.37% at 12 months, aligning with previous studies. Early postoperative complications were minimal (2.1%), with no mortality. Follow-up revealed a peak in weight loss at 9 months, but mid-term OCR was achieved in 41.2% at 3 years. The learning curve showed efficiency improvements after 26 procedures. CONCLUSION: ESG proves effective at one year, with a %TWL of 14.37%. However, mid-term efficacy beyond 12 months remains challenging, raising questions about the durability of weight loss. Despite a low complication rate, strategies for maintaining a long-term OCR, including potential repeat ESG, warrant further investigation.

Case reports: a variety of clinical presentations and long-term evolution of Bochdalek hernias.

Bochdalek hernias are the most common congenital diaphragmatic hernias, followed by Morgagni hernias. The failure of closure of the pleuroperitoneal membrane results in a posterolateral foramen, which can remain silent until adulthood. They remain a rare pathology with nearly a hundred cases published. Its clinical presentation is variable, making its diagnosis challenging for clinicians. Additionally, its symptoms are not necessarily representative of the content of the hernia. Its management is balanced between the abdominal and the thoracic approaches. However, no guidelines or algorithms are available to help surgeons in the decision-making process. We report here four consecutive cases of symptomatic Bochdalek hernias. Each case has a singular presentation, and we share how they were approached at our institution. In particular, this series shows no reoccurrence in 10+ years of follow-up in two cases and 20+ in one case, underlying the importance of surgical management when Bochdalek hernias are symptomatic.

Outcomes of patients older than 55 years undergoing abdominoplasty after bariatric surgery.

BACKGROUND: Bariatric surgery has become widely performed for treating patients with morbid obesity, and the age limits are being pushed further and further as the procedure proves safe. After massive weight loss, many of those patients seek body-contouring surgery for excess skin and fat. OBJECTIVES: To analyze the feasibility and the safety of abdominoplasty in patients older than 55 years old after bariatric surgery. SETTING: University hospital medical center. METHODS: We performed a retrospective review of prospectively collected data from patients aged older than 55 years who had undergone abdominoplasty following massive weight loss due to a bariatric surgery at a single institution from 2004 to 2017. The data analyzed included age, gender, preoperative body mass index, associated interventions, co-morbidities, and postoperative complications. RESULTS: We retrieved records for 104 patients; 85.6% percent of them were female, and the mean age was 60.1 ± 3.9 years old. Of the 104 patients, 21 (20.2%) underwent a sleeve gastrectomy and 77 (74%) underwent a Roux-en-Y gastric bypass. The mean interval between the bariatric surgery and the abdominoplasty was 33.6 ± 26.9 months. The mean preoperative weight and body mass index were 76.1 ± 14.5 kg and 28.9 ± 4.5 kg/m2, respectively. A total complication rate of 20% was observed. The only factor significantly associated with postoperative morbidity was the associated procedure (P = .03), when we performed another procedure at the same time as the abdominoplasty. Complications included postoperative bleeding in 5 patients (4.8%), seromas in 5 patients (4.8%), surgical site infections in 12 patients (11.5%), and wound dehiscence or ischemia in 2 patients (1.9%). No mortality occurred. CONCLUSION: Abdominoplasty can be safely performed in carefully selected patients older than 55 years old after weight loss surgery, and does not present increased morbidity or mortality. We recommend that surgeons avoid adding concomitant procedures when possible, to decrease the risk of complications. It is also important to look at the patient's previous maximum BMI levels, as a higher maximum BMI can predict higher postoperative risks and longer hospital stays.

Combined Laparoscopic Revision of the Gastric Pouch and Distalization of the Roux Limb After Failure of Weight Loss Following Roux-en-Y Gastric Bypass.

PURPOSE: After failed Roux-en-Y gastric bypass (RYGB), the choice of a secondary procedure falls into many pathways: revision of the gastric pouch, distalization of the bypass (DRYGB), addition of an adjustable gastric band, and conversion to a duodenal switch (BPD/DS). MATERIAL AND METHODS: We present the case of a 54-year-old man with initial BMI of 51.5 kg/m2, who first underwent laparoscopic sleeve gastrectomy (SG) in 2010. In 2012, he underwent a RYGB procedure, and in 2015, a pouch resizing for weight regain. In 2018, he reached a BMI of 41.2 kg/m2. A 3D volumetric CT scan measured a gastric pouch volume of 220 cm3 and a gastrojejunal anastomosis diameter of 20 mm. RESULTS: As shown in the video, the patient underwent a combined revision of the gastric pouch and the gastrojejunal anastomosis associated to the distalization of the Roux limb. The gastrojejunal anastomosis is identified, and vertical division of the stomach is performed along a 36 French bougie, in order to create a 30 cm3 gastric pouch. Then, the jejunojejunal anastomosis is identified, and the Roux limb at the jejunojejunostomy is divided and transposed distally 100 cm to create a total alimentary length of 250 cm. The postoperative course was uneventful. At 1 year, his BMI was 31.2 kg/m2. No nutritional deficiencies were noted. CONCLUSION: Combined laparoscopic pouch resizing and distalization are safe and can lead to adequate weight loss. This technique allows the combination of an added restriction and malabsorption to the previous RYGB and could lead to an improved weight loss.

Laparoscopic conversion of vertical banded gastroplasty (Mason MacLean) into Roux-en-Y gastric bypass.

BACKGROUND: Revision of bariatric procedures is required in 10 to 25% of patients either for insufficient weight loss or for complications. Patients undergoing vertical banded gastroplasty (VBG; Mason MacLean) may require revision in up to half of the cases in the long term. Roux-en-Y gastric bypass (RYGBP) is considered the procedure of choice for revision of VBG gastroplasty. PATIENTS AND METHODS: Eighteen patients, 16 women and 2 men with a mean age of 41.7 years (range 27-72) and a mean BMI at 37.6 kg/m(2) (range 22.5-47), underwent laparoscopic conversion of VBG into RYGBP. Indications for revisional surgery were insufficient weight loss (11 patients), stoma stenosis (4 patients), and acid reflux (3 patients). RESULTS: Operative time was on average 203 min (range 60-300 min), and conversion was required in one patient (5.5%). There was no early postoperative mortality, and four patients (22.2%) developed immediate postoperative complications (gastrojejunostomy leak 1; stenosis of the gastrojejunal anastomosis 2; liver abscess 1). One patient died 6 months after conversion because of a bleeding anastomotic ulcer (late mortality 5.5%). Two patients (11.5%) developed late complications (incisional hernia 1; internal hernia 1). At a mean follow-up of 23, 4 months BMI is on average 29.8 kg/m(2) (range 22.7-37). CONCLUSION: Although revision of failed VBG into RYGBP gives good functional results, the risk of postoperative serious complications must be carefully evaluated before revision.

Complications after laparoscopic sleeve gastrectomy: can we approach a 0% rate using the largest staple height with reinforcement all along the staple line? Short-term results and technical considerations.

BACKGROUND: Laparoscopic sleeve gastrectomy (SG) is gaining acceptance among bariatric surgeons as a viable option for treating morbidly obese patients. We describe the results of a single center's experience with SG, revealing a low complication rate. OBJECTIVES: The aim of the study was to analyze the short-term results of laparoscopic SG using exclusively black staples with staple-line reinforcement. SETTINGS: University hospital, tertiary referral center for bariatric surgery. METHODS: SG was performed in 434 consecutive patients from December 2014 to March 2017. A technique is described where all operations were performed with attention to avoiding strictures at the incisura angularis and not stapling near the esophagus at the angle of His. All the interventions were performed using black cartridges and staple-line reinforcement using bioabsorbable Seamguard. A prospective chart review was conducted to determine the occurrence of early complications. RESULTS: Follow-up data were collected for all patients at 90 days postoperatively. A total complication rate of 4.4% was observed. No leaks occurred in any of the patients. One case of bleeding occurred that necessitated a surgical exploration, which found the origin of the bleeding to be a diaphragmatic vessel. The 90-day mortality rate was 0%. CONCLUSION: SG can be performed with a low complication rate. Selection of the appropriate staple height and reinforcement of the staple line could play a major role in optimizing the results of SG.

Internal hernia as a complication of laparoscopic Roux-en-Y gastric bypass.

BACKGROUND: Internal hernia (IH) is a well known complication of Roux-en-Y gastric bypass (RYGBP) which is more frequently encountered when the RYGBP is done laparoscopically. METHODS: Patients with IH were identified from a prospective data-base of morbidly obese patients undergoing bariatric surgery at our center. RESULTS: 10 patients with IH were identified out of 625 patients undergoing LRYGBP from 1998 to 2006 (incidence 1.6 %). The defects were closed in the last 155 cases with non-absorbable running sutures. There were 8 women and 2 men with mean age 38 years (range 28-54). The mean interval of time elapsed between LRYGBP and clinical presentation of IH was 26.5 months (range 7 days - 72 months). Abdominal pain, nausea and vomiting were the most common complaints. White blood cell count was increased to a mean of 64 mg/dl (range 45-155 mg/dl) in 6 patients. CT scan showed signs of intestinal obstruction in all 7 patients with acute presentation. Surgery was done by laparoscopy in 5 cases (2 in the setting of emergency), and by laparotomy in the remaining 5 cases. All IHs were located at the mesenteric defect and were treated with IH reduction in all but one patient who underwent small bowel resection. There was no mortality, and one patient had pneumonia with acute respiratory distress syndrome that resolved favorably. CONCLUSIONS: IH after LRYGBP occurred mainly at the mesenteric defect and in patients with no closure of the defect. The antecolic approach for the Roux-limb, the division of the greater omentum only when too thick, and the systematic closure of the defects with tight non-absorbable running sutures are recommended.

Leak of the bypassed stomach after laparoscopic gastric bypass, presenting as abdominal wall cellulitis.

The development of surgical staplers devised for laparoscopy has enabled advancements in complex laparoscopic procedures, such as gastric bypass. This procedure, considered by many as the gold standard for bariatric surgery, is now frequently performed laparoscopically, with the advantages inherent in the minimally invasive approach. Technical failure of surgical staplers is, however, a well known complication of these devices in digestive surgery. We report the case of a leak of the bypassed stomach into the abdominal wall through a trocar site following laparoscopic gastric bypass. The mechanisms responsible for this life-threatening complication and the options to avoid it are discussed.

Gastric necrosis: a rare complication of gastric banding.

In the last decade, laparoscopic gastric banding has become an increasingly popular surgical option for morbidly obese patients, because of the minimally invasive and easy surgical technique, its reversibility, and the possibility to calibrate the stoma. Gastric necrosis, as a complication of laparoscopic gastric banding, has been only rarely reported. Herein described is the case of a 45-year-old obese patient with gastric necrosis occurring 2 years after the placement of the band. After initial conservative management, the patient underwent urgent surgery. A huge anterior gastric prolapse through the band was found to be responsible for necrosis of the herniated stomach. An upper polar gastrectomy was performed. The mechanisms responsible for this life-threatening complication are discussed.

Agenesis of the right liver: a difficult laparoscopic cholecystectomy.

Congenital agenesis of the right liver (ARL) is a rare condition that is generally asymptomatic. Congenital anomalies of the liver are generally diagnosed with current cross-sectional imaging modalities such as ultrasound, computed tomography, and magnetic resonance imaging (MRI) before surgery. However, discovery of a congenital anomaly of the liver only at time of surgery remains a possibility. Herein reported is the case of a 68-year-old woman undergoing laparoscopic cholecystectomy for symptomatic gallbladder stones as diagnosed on preoperative ultrasounds. Upon laparoscopic exploration of the upper abdomen, the right liver was not found; the gallbladder was located in the right subdiaphragmatic region posterior to the medial segment of the liver. A posterolateral interposition of the hepatic flexure of the colon was also found. Cholecystectomy was completed under laparoscopy. A postoperative MRI confirmed right liver agenesis. We discuss the technical difficulties of performing a laparoscopic cholecystectomy in the case of ARL and the advantages of a laparoscopic approach.

Laparoscopic fenestration for a symptomatic simple cyst of the spleen.

Benign nonparasitic cysts of the spleen are a rare entity. Surgical treatment is indicated when they become symptomatic. Splenic conservative techniques are preferred, given the important immunologic role of the spleen. Laparoscopy has been used in the treatment of different splenic diseases with favorable results in terms of reduced postoperative discomfort, duration of hospital stay, and better cosmetic results. We report the case of a 35-year-old woman with a symptomatic simple cyst of the spleen that underwent a laparoscopic fenestration. The diagnostic and therapeutic implications are discussed focusing on the role of laparoscopy.

[A solitary tumor of the common bile duct: case report of a metastatic melanoma]. / Une tumeur isolée intracholédocienne. Un cas de métastase par un mélanome.

Primary malignant melanoma of the bile duct is very rare. We report a case of a malignant melanoma involving the common bile duct in a 41-year-old man. The patient presented to the hospital with an isolated jaundice and underwent pancreaticoduodenectomy. Absolute exclusion of a metastatic tumor is not entirely possible.

Laparoscopic sleeve gastrectomy: how I do it.

Laparoscopic sleeve gastrectomy (LSG) is considered a straightforward procedure but the surgical technique is one of the major determinants of the success of this procedure. We describe a 3-port approach to LSG that was adopted in 750 consecutive cases. The LSG was completed with 4 cartridges in 712 cases (95%) and was associated with a 4.8% rate of complications including a 2.4% rate of leak. The surgical technique is described in detail and the inherent advantages are discussed.