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Abstract:

Objective

To evalute prophylactic gastroenterostomy in patients with late periampullary carcinoma(PAC)using a meta-analysis.

Methods

MEDLINE,EMBASE and PUBMED searchs were supplemented by information from trial registers.Controlled trials for prophylactic gastroenterostomy concomitant with bilio-enteric bypass and bilio-enteric by-pass alone in inoperable periampullary carcinoma.A quantitative meta-analysis using updated information based on inclusion criterion from all available randomized controlled trials and non-randomized controlled trials were carried out by two reviewers.The pirmany meta-analysis was based on gastric outlet obstruction rate.The second was postoperative complications,operative death rate and survival time.

Result

The meta-analysis included 3 randomized controlled trials and 15non-randomized controlled trials.In late periampullary carcinoma,there was a significant decrement for two by-pass procedures in gastric outlet obstruction rate(RR=0.18,P<0.01,RR,relative risk meanes risk in the prophylactic gastroenterostomy concomitant with bilio-enteric bypass group risk in the bilio-enteric bypass alone group;RD=-0.20,P<0.01,RD,rate difference meanes risk in the two by-pass procedures drecreases risk in the bilio-enteric bypass alone procedures,Post-operation complications rate(RR=1.09,P=0.45;RD=0.03,P=0.43);Operative death rate(RR=1.01,P=0.96;RD=0.00,P=0.95).Two research items of three research items show the postoperative survival time two by-pass procedures were longer than bile by-pass only.

Conclusion

Comparing with bilioenteric by-pass only in inoperable periampullary carcinoma.The prophylactic gastroenterostomy concomitant with bilioenteric by-pass decrease significantly occurring rate of gastric outlet obstruction,prolong postoperative survival time,but did not increase postoperative complications,operative death rate.It can increase chance for other treatment and nutrition.

Key words: late pancreatic head carcinoma, advanced pancreatic head carcinoma, unresectable periampullary carcinoma, cholecystoenterostomy, hepaticojunostomy, choledochojejunostomy, prophylactic gastroenterostomy, meta-analysis, RCT

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