Surgical Laparoscopy, Endoscopy & Percutaneous Techniques最新文献

Introduction: Gastroesophageal reflux disease (GERD) symptoms and the use of proton pump inhibitors (PPIs) remain prevalent after Roux-en-Y Gastric Bypass (RYGB), despite it being known to alleviate reflux. The physiological changes behind long-term GERD and hiatal hernia (HH) prevalence post-RYGB are not commonly investigated.

Methods: In this consecutive cohort study, we examined patients who underwent RYGB and subsequent upper endoscopy, conducted by an expert bariatric endoscopist. The primary focus was on pouch endoscopic retrosflexion to evaluate the antireflux barrier (ARB). We gathered data encompassing patient demographics, anthropometrics, comorbidities, and findings from esophagogastroduodenoscopy (EGD) at the time of surgery and during follow-up EGD.

Results: Our study included a total of 42 patients, predominantly female (97.5%) and White (100%), with an average age of 53.6±10.6 years and a body mass index (BMI) of 32.9±9.4 kg/m2. In our findings, all EGDs revealed the presence of a HH of varying sizes. The average HH size was 2.07±0.87 cm. The esophagogastric junction (EGJ) flap was also effaced in all patients with the majority (90.4%, 38 patients) classified as Hill grade IV and a smaller proportion (9.6%, 4 patients) as Hill grade III. Notably, PPI usage increased from the time of surgery to the time of EGD (69.0% vs. 42.9%, P=0.06).

Conclusion: This research highlights the high incidence of HH and EGJ flap effacement in patients after RYGB, potentially elucidating the persistence of reflux symptoms, including weakly acidic or alkaline reflux, post-RYGB.

Aim: The da Vinci Surgical System (Intuitive Surgical) currently dominates robotic gastrectomy for gastric cancer. The hinotori Surgical Robot System (Medicaroid Corporation) is a newly developed, Japan-made surgical assist robot. This study aimed to introduce the initial experience of robotic gastrectomy using the hinotori and discuss key techniques and challenges.

Methods: This single-center retrospective study involved 10 eligible patients who underwent curative robotic distal gastrectomy using the hinotori for primary Stage I to III gastric cancer. Short-term surgical outcomes were evaluated. Lymph node dissection was mainly performed using the conventional double bipolar technique, left-handed double bipolar technique, or laparoscopic coagulation shears from the assist port.

Results: No patients developed intraoperative complications, and all procedures were successfully completed without conversion to open or laparoscopic surgery. All patients achieved R0 resection. The median operation time was 275 minutes (range, 252 to 336 min), and the estimated blood loss was 5 mL (range, 3 to 20 mL). The drain amylase content on postoperative day 1 was 220.5 IU/L (range, 66 to 1207 IU/L). The median number of retrieved lymph nodes was 29.5 (range, 11 to 58). No patients developed postoperative Clavien-Dindo grade ≥IIIa complications, and there was no mortality.

Conclusion: Robotic gastrectomy using the hinotori shows potential benefits for gastric cancer. Further studies are needed to validate these advantages.

Purpose: This study aimed to compare extraperitoneal colostomy (EPC) with transperitoneal colostomy (TPC) after laparoscopic abdominoperineal resection (APR) for rectal cancer regarding postoperative complications.

Method: A literature search was performed on PubMed, Ovid, and Cochrane Databases for studies comparing EPC with TPC after laparoscopic APR for rectal cancer. The last search was performed on June 4, 2024. The primary outcome was the incidence of parastomal hernia. The Review Manager (version 5.3) was used for data analysis.

Results: A total of 9 studies with 1002 patients were included in this meta-analysis. Among the enrolled literatures, one was randomized clinical trials, and others were retrospectively case-control designed. EPC showed significant efficiency in preventing parastomal hernia (P<0.001, OR=0.16, 95% CI: 0.09-0.28, I2=0%). Besides, the results indicated that the EPC group was associated with significantly less incidence of stoma retraction (P=0.02, OR=0.23, 95% CI: 0.06-0.81, I2=0%), stoma prolapse (P=0.002, OR=0.18, 95% CI: 0.06-0.54, I2=0%), and total stoma-related complications (P<0.001, OR=0.50, 95% CI: 0.33-0.74, I2=26%). In addition, no significant difference was observed between the 2 groups in terms of the total operative time or the time for colostomy creation.

Conclusion: Current data demonstrated the significant efficiency of EPC in preventing parastomal hernia after laparoscopic APR for rectal cancer. Besides, the clinical safety and feasibility of EPC were also indicated. The EPC procedure could be widely recommended for permanent colostomy in clinical practice.

Objective: In this study, we investigated the factors related to abnormal liver function in patients undergoing laparoscopic esophageal hiatal hernia repair.

Methods: The clinical data of 347 patients who underwent elective laparoscopic esophageal hiatal hernia repair at Beijing Chao-yang Hospital of Capital Medical University between January 2018 and November 2023 were retrospectively collected. The patients comprised 131 males and 216 females, ranging in age from 24 to 87 years, and were assessed using the ASA grading system between grades I and III. The patients were divided into 2 groups based on the presence or absence of liver function abnormalities on the first day after surgery: a normal liver function group (NLA group) and an abnormal liver function group (LA group). Patients with elevation in any of the following indicators were included in the LA group: alanine aminotransferase >40 U/L, glutamine aminotransferase >40 U/L, γ-glutamyltransferase >49 U/L, alkaline phosphatase >135 U/L, total bilirubin >17.1 μmol/L, or direct bilirubin >6.8 μmol/L. The clinical data of the 2 groups of patients were compared, and only the indicators with a P -value <0.15 were included in a binary logistic regression model analysis.

Results: There were 238 patients (68.6%) who developed liver function abnormalities on the first postoperative day. In comparison to the NLA group, the LA group had a significantly higher proportion of patients with esophageal hiatal hernia type II, type III, and type IV, hypotension, and high P ET CO 2 . Furthermore, the LA group had a significantly lower proportion of patients receiving blood transfusions. The maximum length and maximum cross-sectional area of the esophageal hiatal hernia were also significantly larger in the LA group. In addition, the operation time was significantly longer in the LA group. (all P -values are <0.15). The binary logistic regression analysis revealed that prolonged operation time (OR=1.017, 95% CI: 1.007-1.028) was the only risk factor associated with postoperative liver function abnormalities.

Conclusions: The sole risk factor for postoperative liver function abnormalities was prolonged surgical time.

Background: Diastasis recti abdominis (DRA) is a prevalent postpartum condition characterized by the separation of the rectus abdominis muscles with an interrectal distance >2.5 cm, often leading to symptoms like back pain, constipation, and urinary incontinence. Preaponeurotic endoscopic repair (REPA) is a novel, minimally invasive surgical approach for DRA, offering an alternative to traditional abdominoplasty. Despite its minimally invasive nature, REPA surgery poses significant postoperative pain challenges, typically managed with opioids, which carry numerous side effects.

Materials and methods: This retrospective study evaluates the efficacy of combining 2 ultrasound-guided abdominal wall blocks, rectus sheath block (RSB) and transversus abdominis plane block (TAPB), to manage postoperative pain in 55 DRA patients who underwent REPA surgery. We performed lateral TAPB in 28 cases, whereas 27 received an association of TAPB and RSB.

Results: At 6 hours postsurgery, 61% of patients in the TAPB group reported significant pain (Numeric Rating Scale >3), compared with 19% in the TAPB-RSB group ( P = 0.001). The TAPB-RSB group also required fewer analgesic rescue doses ( P = 0.042) and showed earlier recovery, with faster initiation of oral intake and mobility.

Conclusion: The combination of TAPB and RSB significantly reduces opioid consumption, postoperative pain, and the need for rescue analgesia compared with TAPB alone. The dual-block approach, providing a multi-dermatomal sensory block, suggests a promising strategy for improving postoperative pain management in REPA surgery.

Objective: To investigate the role of endoscopic ultrasonography (EUS) in the diagnosis and treatment of upper gastrointestinal bleeding of unknown origin in liver cirrhosis, focusing on patients with recurrent treatment of esophageal and gastric varices who failed to identify the bleeding site under direct endoscopy.

Background: Esophagogastric variceal bleeding is one of the severe complications of decompensated liver cirrhosis, and serial endoscopic therapy can improve the long-term quality of life of patients. Most acute bleeding can be detected under direct endoscopy with thrombus or active bleeding, but there are still some patients with recurrent bleeding after repeated treatments, and it is difficult to find the bleeding site, especially in gastric variceal bleeding. Therefore, it is of great significance to identify the bleeding site.

Patients and methods: A total of 88 patients with liver cirrhosis bleeding diagnosed and treated under EUS were collected in this study, including 26 patients who failed to identify the bleeding site under direct endoscopy. EUS was used to scan the bleeding site, and EUS-guided treatment was performed. The characteristics of the bleeding site under direct endoscopy and EUS and the follow-up results after surgery were analyzed.

Results: Among the 26 patients, 16 patients (16/26, 61.5%) showed red color signs of gastric fundus mucosa under direct endoscopy, 5 patients (5/26, 19.2%) showed punctate erosion, and the remaining 5 patients (5/26, 19.2%) showed no abnormal mucosal manifestations. All patients could find anechoic blood vessels under EUS, and blood flow signals could be detected within. Among them, 23 patients (23/26, 88.5%) chose EUS-guided treatment, and no rebleeding occurred after surgery. Another 3 patients (3/26, 11.5%) were given endoscopic variceal ligation due to small esophageal and gastric varices and inability to perform intravascular injection. The median follow-up time was 86 days. Adverse reactions included 5 cases of retrosternal pain (5/23, 21.7%), and 1 case of fever (1/23, 4.3%).

Conclusion: EUS can detect submucosal varices in the gastric mucosa, and these bleeding sites may present as red color signs or punctate erosion under direct endoscopy.

Objective: Endoscopic thyroidectomy through the bilateral axillo-breast approach (BABA) is predominantly used in cases involving low-risk thyroid malignancies and benign nodules measuring <4 cm. However, the efficacy and safety of this technique in larger goiters remain underexplored.

Methods: This retrospective study compared perioperative data and pathologic outcomes among patients who underwent endoscopic BABA thyroidectomy categorized on the basis of the size of the dominant nodule (<4 vs ≥4 cm).

Results: Among the 113 included patients, 81 (72%) had a dominant nodule measuring <4 cm (group 1) and 32 (28%) presented with a nodule measuring ≥4 cm (group 2). Group 2 experienced longer operative times, greater blood loss, and higher drainage volumes than group 1. However, pain scores and length of postoperative hospital stay were similar between the groups. None of the patients required conversion to open surgery. The incidence rates of vocal cord palsy and hypoparathyroidism did not differ significantly between groups. In group 2, three patients developed seroma (9%) and one exhibited delayed bleeding (3%). Pathologic examination revealed that 6 patients (19%) in group 2 had malignant neoplasms; 3 were identified in the dominant nodule, whereas the remaining 3 were identified in separate, smaller nodules. Throughout the mean follow-up period of 43 months, no recurrence or metastasis was reported.

Conclusions: Endoscopic BABA thyroidectomy is a viable option for patients with large thyroid nodules (≥4 cm); however, this technique requires careful execution.

Objective: Postoperative nausea and vomiting (PONV) is a frequent adverse event after bariatric surgery and is associated with patient dissatisfaction and increased health care burden. Aggressive multimodal antiemetic prophylaxis and the use of propofol infusion during anesthesia are associated with the reduction of PONV. In this study, we examined the use of rescue antiemetics following bariatric surgery performed with 3 different anesthetic strategies designed to reduce PONV: (1) primary volatile (VOL) anesthetic and propofol (PROP) infusion (VOL+PROP), (2) volatile anesthetic with propofol and dexmedetomidine (DEX) infusions (VOL+PROP+DEX), or (3) opioid-sparing total intravenous anesthesia (PROP+DEX).

Methods: In this retrospective observational study, we included patients undergoing bariatric surgery from 2018-2022 who received 1 of 3 anesthetics: (1) VOL+PROP, (2) VOL+PROP+DEX, or (3) opioid-sparing PROP+DEX without a VOL. Inverse probability of treatment weighting analysis determined the association between the need for rescue-antiemetics in the postanesthesia care unit (PACU) and following PACU discharge.

Results: Three hundred thirty-two patients received VOL+PROP, 354 VOL+PROP+DEX, and 166 PROP+DEX, and all received prophylactic antiemetics during surgery. After surgery, the PROP+DEX patients received fewer rescue antiemetics in the PACU compared with VOL+PROP (11% vs. 24%, P =0.002), and VOL+PROP+DEX fewer compared with VOL+PROP (16% vs. 24%, P =0.023). This differential antinausea effect was limited to PACU stay only. Rescue antiemetic use increased across all anesthetic management groups following PACU discharge until midnight on the day of surgery (ranging from 38% to 46% across groups, P =0.71) and through the first postoperative day (ranging from 47% to 57% across groups, P =0.20).

Conclusions: The benefit associated with anesthetic strategies designed to reduce PONV was present but did not persist past PACU discharge. This finding suggests that aggressive perioperative multimodal antiemetic prophylaxis combined with anesthetic strategies designed to prevent PONV after bariatric surgery have only a short-lived effect, thus health care staff in hospital wards may expect to encounter high rates of PONV in these patients. There is a need for the development of novel antinausea treatments to reduce the rate of this frequent postoperative complication.

Background: Percutaneous endoscopic gastrostomy (PEG) is a safe method of choice for patients who need long-term nutritional support. However, complications and high mortality rates have been reported. Based on 8 years of experience in tertiary care hospitals, we aimed to identify risk factors associated with major complications and 30-day mortality after PEG.

Methods: Patients who underwent PEG in the General Surgery clinic of Tokat Gaziosmanpaşa University, Faculty of Medicine between January 2014 and March 2022 were included in the study. Data regarding patient demographics, comorbidities, laboratory data, drugs used together, and indications for PEG tube placement were collected.

Results: There were 429 patients. The mean age of the patients was 66.9±16.75 years, and 180 (44%) patients were female. The mean follow-up period was 8.84±6.75 months. Twenty patients (4.9%) had major complications. Female sex [Odds Ratio (OR) 0.33, 95% CI, CI=1.23-8.87, P =0.02] and diabetes mellitus (DM) (OR=0.23, 95% CI=1.93-6, P =0.002) were the independent variables associated with major complications. The all-cause 30-day mortality rate was 5.9% (n=24). Malignancy, DM, corticosteroid use, low albumin, and platelet values were associated with increased mortality in multivariate analysis as indications for PEG.

Conclusions: Female sex and patients with DM may potentially face major complications. The patients with cancer, diabetes, and corticosteroid use were associated with higher mortality. In addition, low serum albumin and platelet levels were an effective factor for survival in patients undergoing PEG, and this should be taken into account in decision-making.

Background and aims: Several studies have hypothesized that sparing the oblique/sling fibers during posterior peroral endoscopic myotomy (POEM) may reduce the incidence of gastroesophageal reflux disease (GERD) and reflux esophagitis without compromising the established safety and efficacy of the procedure. This study compares perioperative, postoperative motility-related, and postoperative GERD-related outcomes between posterior oblique/sling fibers-sparing POEM (OFS-POEM) and conventional posterior POEM through a pairwise meta-analysis of comparative studies.

Methods: We conducted a systematic literature review following PRISMA guidelines to identify articles directly comparing posterior OFS-POEM with conventional posterior POEM. A pairwise meta-analysis was performed using a random-effects model. Effect sizes were calculated as odds ratios for dichotomous data and mean differences for continuous data.

Results: No significant differences were observed in perioperative outcomes, including mean gastric myotomy length, mean operative time, and incidence of adverse events. Similarly, no significant differences were noted in postoperative motility-related outcomes, such as mean Eckardt score and mean integrated relaxation pressure. However, a statistically significant reduction in the incidence of symptomatic GERD was observed in favor of OFS-POEM, with a number needed to treat (NNT) of 10 (95% CI: 6-49). Interestingly, no significant differences were found in the incidence of objectively diagnosed postoperative GERD, such as the number of patients with DeMeester scores >14 or the incidence of reflux esophagitis.

Conclusions: This study suggests that OFS-POEM may reduce the incidence of symptomatic GERD following POEM, without affecting the incidence of GERD diagnosed by pH studies (DeMeester score >14) or by endoscopy (reflux esophagitis). Future studies with larger sample sizes are needed to further investigate the impact of OFS-POEM on GERD incidence as determined by pH studies and endoscopic findings. Given the limitations of this study, no definitive conclusions can be drawn. Multicenter randomized controlled trials with larger sample sizes are required to reach more reliable conclusions. Furthermore, stratifying data according to the type and class of achalasia would provide valuable information on whether there are differences in outcomes among the various types and classes of achalasia.