[Comparison of clinical efficacy between proximal gastrectomy with double tract reconstruction and total gastrectomy with Roux-en-Y reconstruction for proximal gastric cancer]

Proximal gastrectomy with double-tract reconstruction versus total gastrectomy for proximal early gastric cancer: A systematic review and meta-analysis

BACKGROUND

The incidence of proximal gastric cancer in the gastric fundus, cardia, and other parts is increasing rapidly. The purpose of this study was to systematically compare the short-term and long-term clinical effects of proximal gastrectomy with double tract reconstruction (PG-DTR) to total gastrectomy (TG) for proximal early gastric cancer (EGC).

METHODS

A systematic review and meta-analysis was conducted through searching the literature in PubMed, Web of Science, Cochrane Library, EMBASE, CNKI, WAN FANG, and VIP databases. All clinical controlled trials and randomized controlled trials (RCTs) of PG-DTR and PG were included. Simultaneously, the relevant data were extracted, and the software RevMan version 5.1 was used for the meta-analysis.

RESULTS

Eight studies with a total of 753 patients were eligible for the meta-analysis. There were no significant differences in the operation time, intraoperative blood loss, postoperative hospital stay, early complications (anastomotic fistula and anastomotic bleeding), late complications (reflux symptoms and anastomotic stenosis), and 5-year survival rate between PG-DTR and TG. However, the levels of partial nutritional indicators (vitamin B12 supplements and vitamin B12 deficiency) were significantly higher in the PG-DTR group than in the TG group.

CONCLUSION

This study showed ample evidence to suggest that PG-DTR improved the postoperative nutritional status without compromising patient safety while providing the same surgical characteristics and postoperative morbidity as TG.

Short and long-term outcomes after proximal gastrectomy with double tract reconstruction for Siewert type III adenocarcinoma of the esophagogastric junction: a propensity score matching study from a 10-year experience in a high-volume hospital

BACKGROUND

Total gastrectomy and proximal gastrectomy (PG) are both surgical options for the treatment of Siewert type III adenocarcinoma of the esophagogastric junction (AEG). Currently there is no consensus on selecting which procedure to perform; in particular, there are few reports of long-term outcomes for patients with local advanced AEG. The aim of this study was to validate the usefulness of PG with double-tract reconstruction in Siewert type III AEG.

METHODS

The clinical data of patients with Siewert type III AEG underwent PG with double-tract reconstruction (PG-DT) or total gastrectomy with Roux-en-Y anastomosis (TG-RY) at our hospital between October 2010 and October 2018. According to the defined inclusion and exclusion criteria, 2,146 cases were enrolled in this study. A 1-to-1 propensity score matching (PSM) was performed to compare the short and long-term outcomes between the 2 groups.

RESULTS

The operation time was longer in the PG-DT group, and the proportion rates of complications and recovery time was similar in the 2 groups. The rates of maintaining bodyweight and free-fat mass index were significantly higher in patients who underwent PG-DT compared to those who underwent TG-RY. While complications, recovery time and survival are similar between two groups.

CONCLUSIONS

Regarding short-term outcomes, PG-DT seemed to be superior in terms of maintaining body weight and skeletal muscle compared to TG-RY, while both had similar complications. It was found that PG-DT enabled a potentially longer survival of pathological stage II and III Siewert type III AEG, although the finding was statistically insignificant. These results may help surgeons to determine the appropriate surgical approach and strategy for patients with early and locally advanced Siewert type III AEG.