Effect of endoscopic resection on short-term surgical outcomes of subsequent laparoscopic gastrectomy: a meta-analysis

Analysis of risk factors for the sigmoid stoma complications in patients after abdominoperineal resection surgery: An observational study

To analyze the risk factors for intraperitoneal sigmoid stoma complications after abdominoperineal resection (APR) surgery to guide clinical practice. Patients who were diagnosed with rectal cancer and underwent APR surgery from June 2013 to June 2021 were retrospectively enrolled. The characteristics of the stoma complication group and the no stoma complication group were compared, and univariate and multivariate logistic analyses were employed to identify risk factors for sigmoid stoma-related complications. A total of 379 patients who were diagnosed with rectal cancer and underwent APR surgery were enrolled in this study. The average age of the patients was 61.7 ± 12.1 years, and 226 (59.6%) patients were males. Patients in the short-term stoma complication group were younger (55.7 vs 62.0, P < .05) and had a more advanced tumor stage (P < .05). However, there was no significant difference between the long-term stoma complication group and the no stoma complication group. Multivariate logistic regression analysis revealed that operation time was an independent risk factor (P < .05, OR = 1.005, 95% CI = 1.000-1.010) for short-term stoma complications. Both the short-term and long-term stoma complication rates in our institution were low. A longer operation time was an independent risk factor for short-term stoma complications after APR surgery.

Red blood cell distribution width has a prognostic value for gastric cancer patients after gastrectomy: A pooling-up analysis

Our study aims to investigate whether preoperative red blood cell distribution width (RDW) has a prognostic value for patients after gastric cancer (GC) surgery. We searched articles in 3 databases including PubMed, Embase, and the Cochrane Library on May 16th, 2022. The prognostic indicators included overall survival (OS) and disease-free survival (DFS). RevMan 5.3 (The Cochrane Collaboration, London, United Kingdom) and Stata V16.0 were used for statistical analysis. The Risk Of Bias In Non-randomized Studies-of Interventions tool was used to assess risk of bias of the included studies. Ten articles involving 2740 patients were included. RDW was a prognostic factor for OS (hazard ratio = 1.81, 95% confidence interval [CI] = 1.38-2.37, P < .01) and DFS (hazard ratio = 1.99, I2 = 26%, 95% CI = 1.53-2.58, P < .01) for GC patients. Meanwhile, there were some differences between the high RDW group and the low RDW group. We found more patients older than 60 years old (OR = 2.58, 95% CI = 1.08-6.13, P = .03), larger tumor diameter (OR = 1.95, 95% CI = 1.33-2.85, P < .01) and later T stage (OR = 1.91, 95% CI = 1.07-3.42, P = .03) in the high RDW group than the low RDW group. No statistic difference was found in gender, N stage, tumor node metastasis stage, vascular invasion, differentiation, and adjuvant therapy between the 2 groups (P > .05). RDW was an independent prognostic factor for both OS and DFS of GC patients. High RDW level were strongly associated with poor survival.

Short-Term and Long-Term Outcomes of Liver Cirrhosis in Gastric Neoplasm Patients Undergoing Endoscopic Submucosal Dissection

Purpose: The purpose of this study was to explore whether liver cirrhosis (LC) influences short-term and long-term outcomes in gastric neoplasm patients who undergo endoscopic submucosal dissection (ESD). Materials and Methods: Eligible studies were identified in three databases, including PubMed, Embase, and the Cochrane Library on December 18, 2022. Clinical characteristics, short-term outcomes, and long-term outcomes were compared between an LC group and a no liver cirrhosis (NLC) group. For continuous variables, the mean difference (MD) and standard deviation (SD) were pooled. For discontinuous variables, raw data from the 2 × 2 tables or odds ratio (OR) and 95% confidence intervals (CIs) were pooled. Forest plots were used to show the results, and a funnel plot was used to evaluate publication bias. Data analyses were performed by STATA SE 16.0 software. Results: Six retrospective studies involving 1616 gastric neoplasm patients were included in the study. Clinical characteristics, including age, gender, location, macroscopic type, invasion depth, differentiation, and ulceration, were found to be not significantly different between the LC group and the NLC group (P > .05). Moreover, LC was not a risk factor for short-term outcomes, including operative time (MD = 0.15, 95% CI = -0.02 to 0.32, I² = 0.00%, P = .09), en bloc resection (OR = 0.87, 95% CI = 0.43-1.75, I² = 0.00%, P = .69), R0 resection (OR = 0.77, 95% CI = 0.42-1.43, I² = 8.97%, P = .41), bleeding (OR = 1.10, 95% CI = 0.62-1.93, I² = 0.00%, P = .75), and perforation (OR = 1.62, 95% CI = 0.45-5.84, I² = 0.00%, P = .46). However, gastric cancer patients with LC exhibited a higher recurrence rate (OR = 3.40, 95% CI = 1.09-10.61, I² = 0.00%, P = .04) after ESD. Conclusion: Surgeons performing ESD in gastric neoplasm patients should pay more attention to long-term effects.

Clinical significance of aberrant left hepatic artery during gastrectomy: A systematic review

BACKGROUND

Vascular variations are frequently encountered during surgery. Approximately thirty percent of these variations are aberrant left hepatic arteries originating from the left gastric artery.

AIM

To summarize the safety and feasibility of aberrant left hepatic arteries (ALHA) ligation in gastric cancer patients who underwent laparoscopic-assisted gastrectomy (LAG).

METHODS

The literature search was systematically performed on databases including PubMed, Embase, and Cochrane Library. The publishing date of eligible studies was from inception to June 2021.

RESULTS

A total of nine studies were included according to the inclusion and exclusion criteria in this review. The variation rate of ALHA ranged from 7.00% to 20.70%, and four studies compared the differences between the ALHA ligation group and the preservation group. Only one study showed worse postoperative outcomes in the ALHA ligation group. In all the included studies, a significant difference was found between the ALHA ligation group and the preservation group in terms of postoperative liver enzymes after LAG. However, there was no significant difference in the number of retrieved lymph nodes between the two groups.

CONCLUSION

In conclusion, it is not always safe and feasible for surgeons to ligate the ALHA during LAG surgery, and it is necessary for gastric cancer patients to undergo preoperative examination to clarify the ALHA subtypes, measure the diameter of the ALHA, and determine whether the patients have chronic liver disease.

Does Extended Intraoperative Peritoneal Lavage Really Bring Benefit on Patients With Gastric Cancer? A Meta-Analysis of Published Clinical Trials

Purpose

The purpose of the current meta-analysis is to analyze whether extended intraoperative peritoneal lavage (EIPL) can bring benefit on short-term outcomes or survival for patients undergoing curative gastrectomy for gastric cancer.

Methods

The PubMed, Embase, and Cochrane Library databases were searched from inception to May 3, 2021, to find eligible studies. Postoperative complications, overall survival (OS), disease-free survival (DFS), and peritoneal recurrence-free survival (PRFS) were compared between EIPL group and No EIPL group.

Results

A total of five randomized controlled trials with 1,790 patients were included in the current meta-analysis. No difference was found in baseline information (p > 0.05). After pooling up the data of overall postoperative complications, no significant difference was found between EIPL group and No EIPL group (OR = 0.88, 95% CI = 0.51 to 1.53, P = 0.65). Furthermore, there was no significant difference between EIPL group and No EIPL group in terms of OS (HR = 0.77, 95% CI = 0.36 to 1.64, P = 0.49), DFS (HR = 0.97, 95% CI = 0.71 to 1.33, P = 0.87), and PRFS (HR = 1.03, 95% CI = 0.74 to 1.43, P = 0.86). In terms of subgroup analysis of OS, no significant difference was found as well (HR = 1.05, 95% CI = 0.82 to 1.34, P = 0.69).

Conclusions

EIPL did not bring benefit in terms of short-term outcomes or survival. Therefore, EIPL is not recommended for patients undergoing curative gastrectomy for gastric cancer.