Abstract
AimTo assess the feasibility and safety of early oral feeding (EOF) after gastrectomy for gastric cancer through a systematic review and meta-analysis based on randomized controlled trials.MethodsA literature search in PubMed, Embase, Web of Science and Cochrane library databases was performed for eligible studies published between January 1995 and March 2014. Systematic review was carried out to identify randomized controlled trials comparing EOF and traditional postoperative oral feeding after gastric cancer surgery. Meta-analyses were performed by either a fixed effects model or a random effects model according to the heterogeneity using RevMan 5.2 software.ResultsSix studies remained for final analysis. Included studies were published between 2005 and 2013 reporting on a total of 454 patients. No significant differences were observed for postoperative complication (RR = 0.95; 95%CI, 0.70 to 1.29; P = 0.75), the tolerability of oral feeding (RR = 0.98; 95%CI, 0.91 to 1.06; P = 0.61), readmission rate (RR = 1; 95%CI, 0.30 to 3.31; P = 1.00) and incidence of anastomotic leakage (RR = 0.31; 95%CI, 0.01 to 7.30; P = 0.47) between two groups. EOF after gastrectomy for gastric cancer was associated with significant shorter duration of the hospital stay (WMD = −2.36; 95%CI, −3.37 to −1.34; P<0.0001) and time to first flatus (WMD = −19.94; 95%CI, −32.03 to −7.84; P = 0.001). There were no significant differences in postoperative complication, tolerability of oral feeding, readmission rates, duration of hospital stay and time to first flatus among subgroups stratified by the time to start EOF or by partial and total gastrectomy or by laparoscopic and open surgery.ConclusionsThe result of this meta-analysis showed that EOF after gastric cancer surgery seems feasible and safe, even started at the day of surgery irrespective of the extent of the gastric resection and the type of surgery. However, more prospective, well-designed multicenter RCTs with more clinical outcomes are needed for further validation.
Highlights
The concept of fast-track surgery is drawing increasing attention, which requires multidisciplinary team work to accelerate recovery during perioperative care [1]
The advantages of early enteral nutrition after colorectal surgery have been demonstrated in several reports, such as a shorter length of hospital stay and less postoperative morbidity and mortality compared with traditional postoperative oral feeding (TOF) [2,3,4]
Study inclusion criteria The studies were limited to be described as the design type of randomized controlled trials (RCTs) with or without blinding method, comparing early oral feeding (EOF) with TOF following gastrectomy for gastric cancers
Summary
The concept of fast-track surgery is drawing increasing attention, which requires multidisciplinary team work to accelerate recovery during perioperative care [1]. Oral feeding (EOF) is one of the most important parts of fast-track surgery elements. The advantages of early enteral nutrition after colorectal surgery have been demonstrated in several reports, such as a shorter length of hospital stay and less postoperative morbidity and mortality compared with traditional postoperative oral feeding (TOF) [2,3,4]. Surgeons should pay more attention to how to enhance recovery, reduce complications and improve quality of life of patients undergoing gastrectomy for gastric cancer [9,10,11]. The introduction of fast-track surgery following gastrectomy has been demonstrated for nearly one decade [12,13,14]. As a key element of fast track surgery pathway, the significance of EOF after gastric cancer surgery is still controversial
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