A Comparison of Clinical Outcomes Between Two Different Models of Surgical Robots in Roux-en-Y Gastric Bypass.

Introduction: For the past 20 years, robotic surgical systems have been used for the Roux-en-Y gastric bypass (RYGB). The da Vinci Surgical System (Intuitive Surgical, Inc.) has been one of the most used robotic platforms. This study aims to retrospectively compare the performance of two models of surgical robots. Materials and Methods: A retrospective comparative study was conducted from a prospective database including all patients who underwent robotic RYGB (RRYGB) from 2011 to 2020. Results: Of a total of 277 patients included, 134 were in the RRYGB using the da Vinci S™ (RRYGB-S™) group and 143 were in the RRYGB using the da Vinci Xi™ (RRYGB-Xi™) group. The mean operative time in the RRYGB-S and RRYGB-Xi groups was 154 ± 28 and 151 ± 32 minutes, respectively (P = .510). The was no statistically significant difference in terms of intraoperative complications between the groups with regard to positive blue test, bleeding, and failure of stapler line. The readmission rate was higher in the RRGB-S group (14.1%) than in the RRYGB-Xi group (3.4%) (P = .004), and it was mainly due to major complications (P = .003) including pouch and gastrojejunostomy anastomotic leaks (P = .001). The nonsurgical complications were statistically significantly higher in the RRYGB-S group (7.4%) than in the RRYGB-Xi group (2.1%) (P < .05), as well as the surgical complications were higher in the RRYGB-S group (7.5%) than in the RRYGB-Xi group (0%) (P < .001). The mean percentage of the total weight loss at 1 and 2 years of follow-up did not show any statistically significant difference (P = .547). Conclusions: The higher complication rate in the S surgical system might be correlated with the initial learning curve and stressed the need for proper robotic surgical training and accurate strategies when introducing emerging technologies into the surgical practice.

2017 update of the WSES guidelines for emergency repair of complicated abdominal wall hernias.

Emergency repair of complicated abdominal wall hernias may be associated with worsen outcome and a significant rate of postoperative complications. There is no consensus on management of complicated abdominal hernias. The main matter of debate is about the use of mesh in case of intestinal resection and the type of mesh to be used. Wound infection is the most common complication encountered and represents an immense burden especially in the presence of a mesh. The recurrence rate is an important topic that influences the final outcome. A World Society of Emergency Surgery (WSES) Consensus Conference was held in Bergamo in July 2013 with the aim to define recommendations for emergency repair of abdominal wall hernias in adults. This document represents the executive summary of the consensus conference approved by a WSES expert panel. In 2016, the guidelines have been revised and updated according to the most recent available literature.

Complicated intra-abdominal infections worldwide: the definitive data of the CIAOW Study.

The CIAOW study (Complicated intra-abdominal infections worldwide observational study) is a multicenter observational study underwent in 68 medical institutions worldwide during a six-month study period (October 2012-March 2013). The study included patients older than 18 years undergoing surgery or interventional drainage to address complicated intra-abdominal infections (IAIs). 1898 patients with a mean age of 51.6 years (range 18-99) were enrolled in the study. 777 patients (41%) were women and 1,121 (59%) were men. Among these patients, 1,645 (86.7%) were affected by community-acquired IAIs while the remaining 253 (13.3%) suffered from healthcare-associated infections. Intraperitoneal specimens were collected from 1,190 (62.7%) of the enrolled patients. 827 patients (43.6%) were affected by generalized peritonitis while 1071 (56.4%) suffered from localized peritonitis or abscesses. The overall mortality rate was 10.5% (199/1898). According to stepwise multivariate analysis (PR = 0.005 and PE = 0.001), several criteria were found to be independent variables predictive of mortality, including patient age (OR = 1.1; 95%CI = 1.0-1.1; p < 0.0001), the presence of small bowel perforation (OR = 2.8; 95%CI = 1.5-5.3; p < 0.0001), a delayed initial intervention (a delay exceeding 24 hours) (OR = 1.8; 95%CI = 1.5-3.7; p < 0.0001), ICU admission (OR = 5.9; 95%CI = 3.6-9.5; p < 0.0001) and patient immunosuppression (OR = 3.8; 95%CI = 2.1-6.7; p < 0.0001).

WSES guidelines for emergency repair of complicated abdominal wall hernias.

Emergency repair of complicated abdominal hernias is associated with poor prognosis and a high rate of post-operative complications.A World Society of Emergency Surgery (WSES) Consensus Conference was held in Bergamo in July 2013, during the 2nd Congress of the World Society of Emergency Surgery with the goal of defining recommendations for emergency repair of abdominal wall hernias in adults. This document represents the executive summary of the consensus conference approved by a WSES expert panel.

Laparoscopic management of an obstructing granulocytic sarcoma of the jejunum causing intussusception in a nonleukemic patient: report of a case.

Granulocytic sarcoma is an extramedullary tumor of immature myeloid cells which is often a forerunner to the development of acute myelogenous leukemia. Granulocytic sarcoma of the gastrointestinal tract frequently involves the small intestine and often presents with abdominal pain and obstruction. Our patient presented with a proximal jejunal mass causing intussusception and obstruction. This type of manifestation has never before been reported. A laparoscopy-assisted resection of the affected portion of jejunum was performed for him. The initial pathological findings were high-grade non-Hodgkin's lymphoma; immunohistochemistry confirmed a diagnosis of granulocytic sarcoma. After a follow-up of 14 months, there was no evidence of leukemia. This condition is often mistaken for lymphoma and confirmation is necessary by immunohistochemistry. Chemotherapy is the treatment of choice and surgery is indicated only in the event of complications, such as bowel obstruction, bleeding, or perforation. The prognosis of granulocytic sarcoma is similar to that of myeloid leukemia.

Laparoscopic antrectomy for a proximal duodenal Brunner gland hamartoma.

BACKGROUND: Adenoma is the most common cause of duodenal polyps, while hamartomas are very rare. We present a patient with a preoperative histology proved diagnosis of isolated duodenal tubulovillous adenomatous polyp with high-grade dysplasia for whom we performed laparoscopic antrectomy. CASE REPORT: The patient was a 56-year-old male with vague upper abdominal pain. Investigations revealed a 3-cm x 3-cm mass arising from the duodenal mucosa with no evidence of extraserosal spread. Histopathology documented an adenomatous polyp with high-grade dysplasia, so a laparoscopic antrectomy was performed. RESULTS: The patient had an uneventful postoperative period, requiring only 2 doses of parenteral analgesics. He was discharged on the seventh postoperative day. The final histopathological findings were consistent with benign hamartoma. No recurrence has been reported after 14 months of follow-up with endoscopy. DISCUSSION: Many procedures have been described for polyps, such as endoscopic excision, duodenectomy, pancreatoduodenectomy, and laparoscopic polyp excision. In our patient, the decision to perform duodenectomy was based on the preoperative findings of a sessile tubulovillous adenomatous polyp with high-grade dysplasia. Histologically, the 2 entities can be identical, especially with the small tissue volume obtained from endoscopic biopsy. CONCLUSION: Given these observations, antrectomy was probably ideal, because endoscopic excision would have been inadequate and even dangerous while pancreatoduodenectomy would have been too radical.

Laparoscopic repair of adult diaphragmatic hernias and eventration with primary sutured closure and prosthetic reinforcement: a retrospective study.

BACKGROUND: Diaphragmatic hernias may be congenital or acquired (traumatic). Some patients present in adulthood with a congenital hernia undetected during childhood or due to trauma, known as the adult-onset type. The authors present their series of adult-onset type diaphragmatic hernias managed successfully by laparoscopy. METHODS: This study retrospectively investigated 21 adult patients between 1995 and 2007 who underwent laparoscopic repair at the authors' institution, 15 of whom were symptomatic. Laparoscopic repair was performed with mesh for 18 patients and without mesh for three patients who had Morgagni hernia. RESULTS: In this series, Bochdalek hernia (n = 12), Morgagni hernia (n = 3), eventration (n = 3), and chronic traumatic hernia (n = 3) were treated. Intercostal drainage was required for 14 patients, whereas in three cases the hypoplastic lung never reinflated even after surgery. The time of discharge was in the range of postoperative days 4 to 9. The complication rate was 19%, and mortality rate was 4.5%. One case of recurrence was noted after 10 months. CONCLUSION: The controversies involved are the surgical approach, management of the hernial sac, whether or not to suture the defect, and choice of prosthesis. Although laparoscopic and thoracoscopic approaches are comparable, the laparoscopic approach seems to have certain distinct advantages. The authors prefer not to excise the hernial sac and favor suturing the defects before mesh reinforcement. Regarding the type of mesh used, composite, expanded polytetrafluoroethylene (ePTFE), or polypropylene are the available options. Laparoscopic repair is feasible, effective, and reliable. It could become the gold standard in the near future.

Complicated Meckel's diverticulum in pediatrics: role of laparoscopy-two rare cases.

Meckel's diverticula are mostly asymptomatic. Even complicated disease is hardly diagnosed preoperatively and hence met with fatal outcomes, if not intervened on immediately. In this paper, we present 2 pediatric cases with complicated Meckel's diverticula that were diagnosed and successfully treated by the totally laparoscopic approach. To the best of our knowledge such cases have not been reported in the literature, so far. Nevertheless, we caution about keeping a high index of suspicion for diagnosing such pediatric cases and stress the need for an early laparoscopy in them.

NOTES: Transvaginal endoscopic cholecystectomy in humans-preliminary report of a case series.

OBJECTIVES: Natural orifice translumenal endoscopic surgery (NOTES) represents an emerging technology, including under its umbrella a variety of approaches and combinations. The transvaginal approach to endoscopic cholecystectomy is one such technique, which we present here as a small series. METHODS: From May to November 2007, a total of eight patients were scheduled to undergo transvaginal endoscopic cholecystectomy at our institute. Two patients were excluded as they were converted to laparoscopy due to technical difficulties. RESULTS: Average age of the patients was 34.5 years, and mean body mass index was 27 kg/m(2). The mean operating time was 148.5 min. Patients were discharged in an average of four postoperative days. The major complication rate was 16% (1/6). The patient with a major complication had a subhepatic collection that was managed with ultrasonogram-guided aspiration followed by ERCP and stenting. CONCLUSIONS: Since the first description of NOTES, there has been no standardized technique. In our technique, we used a single 3-mm trocar for visualizing the entry and exit of the endoscope, maintaining and measuring pneumoperitoneum, and retracting the gall bladder fundus. The instruments that were used were the conventional endoscopic ones. The transvaginal approach seems to be a viable alternative to the transgastric approach for cholecystectomy, as the transgastric approach has certain inherent problems like leakage from the gastrotomy site and poor ergonomy. The downside to the transvaginal approach is that it is possible only in women.

Laparoscopic management of remnant cystic duct calculi: a retrospective study.

INTRODUCTION: Even though cholecystectomy relieves symptoms in the majority of cases, a significant percentage suffer from 'post-cholecystectomy syndrome'. Cystic duct/gall bladder remnant calculi is a causative factor. We present our experience with the laparoscopic management of cystic duct remnant calculi. PATIENTS AND METHODS: We managed 15 patients with cystic duct remnant calculi from 1996 to 2007 in our institute. All these patients had earlier undergone laparoscopic subtotal cholecystectomy at our centre. They were successfully managed by laparoscopic excision of the remnant. RESULTS: The mean duration between first and second surgery was 8.35 months (range, 6-10.7 months). The mean operating time was 103.5 min (range, 75-132 min). Duration of hospital stay was 4-12 days. There was a higher incidence of remnant duct calculi following laparoscopic subtotal cholecystectomy than conventional laparoscopic cholecystectomy - 13/310 (4.19%) versus 2/9590 (0.02%). The morbidity was 13.33%, while there were no conversions and no mortality. CONCLUSIONS: Leaving behind a cystic duct stump for too long predisposes stone formation, while dissecting too close to the common bile duct and right hepatic artery in acute inflammatory conditions is dangerous. We believe that the former is a wiser policy to follow, as cystic duct remnant calculi are easier to manage than common bile duct or vessel injury. Laparoscopic excision of the remnant is effective, especially when performed by experienced laparoscopists. 'T'-tube is used to canulate the common bile duct in case the tissue is friable. Magnetic resonance cholangiopancreaticography is the imaging modality of choice, and is mandatory.

Laparoscopic excision of an infected "egg-shelled" retroperitoneal pseudocyst.

Primary retroperitoneal pseudocysts are rare entities. Though laparoscopic approach has been described in their treatment, open surgical excision is still the mainstay of treatment for these lesions. We present a case of infected retroperitoneal pseudocyst and its successful laparoscopic excision. The patient was an 80-year old female. Contrast enhanced CT scan of the abdomen and ultrasonography confirmed a large retroperitoneal cyst. Laparoscopic resection was accomplished after puncturing and decompressing the cyst. There were no complications or conversion. The operating time was 176 minutes. The patient was discharged 3 days after surgery. Histopathology revealed a pseudocyst. Retroperitoneal pseudocysts can be resected laparoscopically with careful and meticulous laparoscopic dissection, utilizing the advantages of laparoscopy.

Emergency laparoscopic cholecystectomy for acute empyema of the gallbladder in pregnancy.

Laparoscopic surgery in pregnant patients have been reported in the literature, laparoscopic cholecystectomy being the most common. A pregnant patient in her second trimester of pregnancy underwent emergency laparoscopic cholecystectomy for empyema of gallbladder. The distended gallbladder was decompressed before dissection was commenced. There was no morbidity conversion, or complications for either mother or child related to general anaesthesia. The major advantages of the minimally invasive therapy can be utilized in the surgical disorders of the pregnant patient.

Transumbilical endoscopic appendectomy in humans: on the road to NOTES: a prospective study.

BACKGROUND: Natural orifice translumenal endoscopic surgery (NOTES) is the newest technique emerging in the field of surgery. There are several techniques described in the literature, though there is no standardization yet. In this paper, we describe a transumbilical approach for the endoscopic appendectomy in humans. MATERIALS AND METHODS: Eight of 12 patients with uncomplicated appendicitis successfully underwent a transumbilical endoscopic appendectomy. Patients with a mass, abscessed or perforated appendix, previous lower abdominal surgeries, and conversion to laparoscopy (4 patients) were excluded. RESULTS: The average age of the patients was 32.5 years. The mean operating time was 95 minutes, and the conversion rate was 33.3%. Only 1 dose of intravenous analgesics was administered postoperatively. Hospital stay was 1-3 days. The follow-ups were scheduled at 7, 30, and 90 days and 8 months. Six patients completed all the follow-ups and experienced no problems. DISCUSSION: So far, this transumbilical approach to the appendectomy in humans has not been reported. We think that this method of approach is an effective technique by itself and an ideal "stepping stone" to NOTES, as well as helpful to train laparoscopic surgeons to make the transition to full-fledged NOTES. Unlike the transgastric or transvaginal approaches, the umbilical approach allows an easy maneuverability of the endoscope, though at the cost of an umbilical scar. The technical ease of the procedure and early outcome seem satisfactory. This technique may be considered as a "precursor" to NOTES.

Thoracoscopic retrieval of a "smiling" foreign body from the proximal esophagus: an impacted denture.

BACKGROUND: The esophagus is a common site for foreign bodies (FBs) because of areas of physiologic narrowing. Dentures pose special problems, especially if they are impacted. We present a case of a "smiling" foreign body in the proximal esophagus. CASE REPORT: The patient was an 80-year-old man with a history of dysphagia and swallowed dentures. Thoracoscopic removal was performed successfully as an endoscopic removal had failed and the patient had an uneventful postoperative recovery. He was discharged on the seventh postoperative day. DISCUSSION: Coins are the most commonly ingested FBs. Swallowing of dentures is found mostly in elderly patients. If endoscopic removal is not possible, then a minimally invasive surgery is an alternative. Swallowing of dentures is rare, and its thoracoscopic removal has not been reported so far. Using thoracoscopy, all the benefits of a minimally invasive surgery can be used. CONCLUSIONS: Minimally invasive techniques have been found to be very useful in the removal of intraluminal FBs, especially when conservative measures fail. Prevention of such incidents should be emphasized.

An innovative technique for colorectal specimen retrieval: a new era of "natural orifice specimen extraction" (N.O.S.E).

PURPOSE: The common incisions for transabdominal specimen retrieval after laparoscopic colorectal surgery are lower quadrant, midline, or transverse suprapubic incision. This study was designed to evaluate a novel method of specimen extraction after totally laparoscopic proctocolectomies. METHODS: We retrospectively studied seven women patients from 2004 to 2007. The indication for surgery was familial polyposis coexisting with adenocarcinoma of the upper rectum. A totally laparoscopic proctocolectomy with ileal pouch-anal anastomosis was successfully performed for all cases. The entire specimen was extracted via a transvaginal route. RESULTS: The mean age of the patients was 49.5 years, and mean body mass index was 25.3 kg/m(2). The mean operating time was 222.5 minutes, and average blood loss was 172 ml. The average hospital stay was 25.5 days. Postoperative complications included ileus (n = 1), pouchitis (n = 1), and deep vein thrombosis (n = 1). The vaginal wound had healed completely by the first follow-up. There was no mortality. CONCLUSIONS: Our technique of transvaginal retrieval effectively prevents wound-related complications by completely eliminating minilaparotomies for specimen retrieval. It could be called "Natural Orifice Specimen Extraction," or N.O.S.E. We stress the need for innovations in specimen extraction, for which importance is not given by surgeons.

Laparoscopic right hemicolectomy for goblet-cell carcinoid of the appendix: report of a rare case and literature survey.

Tumors of the appendix are rare entities, and the majority of them are discovered accidentally during an investigation for other conditions. Laparoscopic surgery for appendiceal goblet-cell carcinoid (GCC) has only been reported once before. Our patient was incidentally discovered to have an appendiceal tumor and was referred to us for laparoscopy. The tumor involved the body of the appendix and was adherent to the cecum. A laparoscopic hemicolectomy was successfully performed for the patient. Postoperative recovery was uneventful. Histopathology confirmed an appendiceal goblet-cell carcinoid. Immunohistochemistry was negative for the neuroendocrine markers, CK20 and CK7. GCC is a rare tumor of the appendix. Hemicolectomy is indicated in specific situations, such as local involvement or tumor size >2 cm. In our patient, the tumor was adherent to the cecum and tumor size was 5 cm. Therefore, a laparoscopic right hemicolectomy was performed primarily. There are several reports in the literature supporting both the laparoscopic and open approaches. Laparoscopic surgery for appendiceal tumors is safe, feasible, and even may be beneficial.