Digestive Surgery最新文献

Introduction: Autoimmune pancreatitis (AIP) is a disease that may mimic malignant pancreatic lesions both in terms of symptomatology and imaging appearance. The aim of the present study is to analyze experiences of surgery in patients with AIP in one of the largest European cohorts.

Patients and methods: We performed a single-center retrospective study of patients diagnosed with AIP at the Department of Abdominal Diseases at Karolinska University Hospital in Stockholm, Sweden, between January 2001 and October 2020.

Results: There were 159 patients diagnosed with AIP, and among them, 35 (22.0%) patients had surgery: 20 (57.1%) males and 15 (42.9%) females; median age at surgery was 59 years (range 37-81). Median follow-up period after surgery was 50 months (range 1-235). AIP type 1 was diagnosed in 28 (80%) patients and AIP type 2 in 7 (20%) patients. Malignant and premalignant lesions were diagnosed in 8 (22.9%) patients for whom AIP was not the primary differential diagnosis, but in all cases, it was described as a simultaneous finding and recorded in retrospective analysis in histological reports of surgical specimens.

Conclusions: Diagnosis of AIP is not always straightforward, and in some cases, it is not easy to differentiate it from the malignancy. Surgery is generally not indicated for AIP but might be considered in patients when suspicion of malignant/premalignant lesions cannot be excluded after complete diagnostic workup.

Introduction: Self-expandable metallic stents (SEMSs) are widely used in patients with malignant left-sided large-bowel obstruction (MLLO) to convert an emergency situation into an elective one. However, the effects of endoscopic stenting on oncological outcomes remain unclear. This study aimed to analyze the oncological outcomes of SEMS placement in patients with MLLO stratified by pathological stage.

Methods: We reviewed the data of patients with MLLO that were prospectively collected between January 2005 and December 2016. Patients were divided into those who underwent SEMS placement as a bridge to surgery and those who underwent emergency surgery. Disease-free survival (DFS) and overall survival (OS) were compared between groups, and their prognostic factors were determined by pathological stage.

Results: SEMS placement and emergency surgery were performed in 130 and 45 patients, respectively. There was no difference in the 5-year DFS and OS rate between two groups. Subgroup analysis revealed a significant difference in the 5-year DFS and OS rate in patients with stage III MLLO, but was not observed in patients with stage II MLLO. Multivariate Cox regression analysis for stage III MLLO revealed endoscopic stenting (hazard ratio [HR], 2.051; 95% confidence interval [CI], 1.018-4.131; p = 0.044) as the only prognostic factor for DFS. Age, tumor differentiation, perineural invasion, and endoscopic stenting (HR, 3.189; 95% CI, 1.346-7.556; p = 0.008) were prognostic factors for OS.

Conclusion: In terms of oncologic outcomes, endoscopic stenting might be more beneficial than ES in patients with stage III MLLO.

Introduction: The incidence and clinical significance of postoperative urinary retention (POUR) remain high. This study aimed to evaluate the incidence of POUR and related risk factors in patients who underwent total mesorectal excision (TMR) for low rectal cancer.

Methods: This study is a retrospective review of a prospectively collected colorectal database from a single center. Data from patients who underwent surgery for low rectal cancer between September 2006 and May 2017 were analyzed to assess the risk factors of POUR. POUR was considered inability to void after urinary catheter removal requiring catheter reinsertion and difficulty in bladder emptying requiring intermittent catheterization.

Results: Of 555 patients with low rectal cancer, 78 (14.1%) developed POUR. Based on multivariate logistic regression analysis, laparoscopic TMR (odds ratio [OR]; 2.114, 95% confidence interval [CI]; 1.212-3.689, p = 0.008) and postoperative ileus (OR; 2.389, 95% CI; 1.282-4.450, p = 0.006) were independent risk factors of POUR. Male gender, advanced age, neoadjuvant chemoradiation, longer operative time, abdominoperineal resection, and lateral pelvic lymph node dissection were not associated with POUR. Advanced age over 65 years also failed to show statistical significance (OR; 1.604, 95% CI; 0.965-2.668, p = 0.068).

Conclusion: Laparoscopic approach and postoperative ileus are risk factors for POUR after low rectal cancer surgery. We postulate that the benefits of robotic surgical systems compared to a laparoscopic approach may reduce the incidence of POUR.

Introduction: Due to the specific location, the potential advantages of laparoscopic gastrectomy (LG) compared with open gastrectomy (OG) for Siewert II/III adenocarcinoma of the esophagogastric junction (AEG) remain uncertain. The current study aimed to compare the short- and long-term outcomes of LG versus OG in treating Siewert type II/III adenocarcinoma.

Methods: We searched PubMed, Embase, Web of Science, MEDLINE (hosted by Ovid), and the Cochrane Library for publications till July 2022 and then used the RevMan 5.3 software for statistical analysis.

Results: Ten publications from 10 medical centers were included, with 1,516 cases from the LG group and 1,219 from the OG group. Meta-analysis results showed that the LG group was superior to the OG group in intraoperative blood loss, hospital stay, lymph nodes retrieved, time to ambulation, time to first flatus, time to diet, 5-year overall survival, and 5-year disease-free survival. There was no significant difference between the two groups in operative time, overall complications, proximal margin, distal margin, pulmonary infection, anastomotic leakage, mortality, ileus, or absolute infection.

Conclusions: Compared with OG, LG is associated with better surgical and long-term outcomes in Siewert type II/III AEG. LG is a safe and feasible option for treating Siewert type II/III AEG. However, studies with large sample sizes, long follow-up periods, and rigorous designs are needed for verification.

Introduction: Postoperative antibiotic treatment is indicated for 3-5 days following appendectomy for complex appendicitis. However, meeting discharge criteria may allow for safe discontinuation of antibiotics and discharge. This study assessed the association between time to reach discharge criteria and duration of postoperative antibiotic use and length of stay.

Methods: This is a multicenter retrospective cohort study including patients who underwent appendectomy for complex appendicitis and received postoperative antibiotics for >24 h. Main outcome measures were time to reach discharge criteria, duration of postoperative antibiotic use, length of hospital stay, and postoperative infectious complications. Discharge criteria were defined as absence of fever (temperature ≤38°C) for 24 h, ability to tolerate oral intake, and pain controlled by oral analgesics.

Results: Between May 2014 and January 2015, 124 patients were included. Time to reach discharge criteria was 2 days (interquartile range [IQR] 1-3). Patients received postoperative antibiotics and were in hospital for a median of 5 (IQR 3-5) and 5 (IQR 4-6) days, respectively. Infectious complications occurred in 12% and did not differ between patients reaching discharge criteria before or after 2 postoperative days.

Discussion: Discharge criteria were met by a median of 2 days after appendectomy for complex appendicitis. This suggests that postoperative antibiotics duration and thereby hospital stay can be reduced. In daily practice, prescribed antibiotics are not reduced in total days given. Prospective studies that evaluate limited postoperative antibiotic use, based on these criteria, are necessary.

Introduction: Failure to cure describes: (1) nonresectional ("open-close") surgery, (2) non-radical surgery (R1-R2), and/or (3) postoperative mortality. This study aimed to investigate whether hospitals offering surgery to a large proportion of patients have higher failure-to-cure rates than hospitals operating fewer patients.

Methods: From the Netherlands Cancer Registry, all cT1-cT4a/cTx-any cN-cM0 esophageal cancer patients diagnosed in 2015-2018 were included. For each center, the expected (E) proportion of patients undergoing surgery was established and divided by the observed (O) proportion. Hospitals were categorized into three groups: (1) hospitals treating relatively many patients with surgery, (2) average hospitals, and (3) hospitals treating relatively few patients with surgery. Multilevel multivariable regression investigated the association between these hospital groups and failure to cure.

Results: Some 3,437 (53.2%) of 6,457 patients underwent surgery, ranging from 45 to 64% among 16 hospitals. The failure-to-cure rate was 15.0% (hospital variation [4.6-23.7%]). After categorizing, 1,003 patients underwent surgery in hospitals with low surgery rates (O/E ratio <0.94/corrected percentage <50%), 1,297 patients in average hospitals, and 1,137 patients in hospitals treating many patients surgically (O/E ratio >1.01/corrected percentage >54%). Failure-to-cure rates were 16.8%, 12.2%, and 14.0%, respectively. This was nonsignificant in multilevel analyses (aOR: 0.63, 95% CI: 0.38-1.05; aOR: 0.76, 95% CI: 0.46-1.24).

Discussion/conclusion: Failure-to-cure rates were similar in hospitals with a high surgery rate and hospitals with a low rate. Increasing the proportion of patients undergoing a resection may offer more patients, a chance for cure.

We report a new surgical method in 10 patients who underwent hybrid laparo-endoscopic resection (HLER) of submucosal tumors with the combination of flexible articulated laparoscopic instruments (FALI). We have assessed technical reproducibility, safety, and morbidity. Resection was completed in all cases. Mean surgical time was 60 min (30-85). Median tumor size was 16 mm (12-30). The more frequent location was the gastroesophageal junction. No complications were observed during the procedure. Length of stay was 1 day in all cases. We have found HLER to be a safe procedure allowing margin resection and organ preservation. The addition of FALI added ease of performance in hard-to-reach tumor locations.