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AIM:To compare non-liquid and clear-liquid diets,and to assess whether the latter is the optimal treatment for mild acute pancreatitis.METHODS:The Cochrane Library,PUBMED,EMBASE,EBM review databases,Science Citation Index Expanded,and several Chinese databases were searched up to March 2011.Randomized controlled trials(RCTs) that compared non-liquid with clear-liquid diets in patients with mild acute pancreatitis were included.A meta-analysis was performed using available evidence from RCTs.RESULTS:Three RCTs of adequate quality involving a total of 362 participants were included in the final analysis.Compared to liquid diet,non-liquid diet significantly decreased the length of hospitalization [mean difference(MD):1.18,95% CI:0.82-1.55;P﹤0.00001] and total length of hospitalization(MD:1.31,95% CI:0.45-2.17;P = 0.003).The subgroup analysis showed solid diet was more favorable than clear liquid diet in the length of hospitalization,with a pooled MD being-1.05(95% CI:-1.43 to-0.66;P﹤0.00001).However,compared with clear liquid diet,both soft and solid diets did not show any significant differences for recurrence of pain after re-feeding,either alone [relative risk(RR):0.95;95% CI:0.51-1.87;P = 0.88] and(RR:1.22;95% CI:0.69-2.16;P = 0.49),respectively,or analyzed together as non-liquid diet(RR:0.80;95% CI:0.47-1.36;P = 0.41).CONCLUSION:The non-liquid soft or solid diet did not increase pain recurrence after re-feeding,compared with the clear-liquid diet.The non-liquid diet reduced hospitalization.
AIM: To compare non-liquid and clear-liquid diets, and to assess whether the latter is the optimal treatment for mild acute pancreatitis. METHODS: The Cochrane Library, PUBMED, EMBASE, EBM review databases, Science Citation Index Expanded, and several Chinese databases were searched up to March 2011. Romomized controlled trials (RCTs) that compared non-liquid with clear-liquid diets in patients with mild acute pancreatitis were included. A meta-analysis was performed using available evidence from RCTs.RESULTS: Three RCTs of adequate quality involving a total of 362 participants were in the final analysis. Compared to liquid diet, non-liquid diet significantly decreased the length of hospitalization [mean difference (MD): 1.18, 95% CI: 0.82-1.55; P <0.00001 ] and total length of hospitalization (MD: 1.31, 95% CI: 0.45-2.17; P = 0.003). The subgroup analysis showed solid diet was more favorable than clear liquid diet in the length of hospitalization, with a pooled MD being-1.05 (95% CI: -1.43 to-0.66; P <0 0.00001) .Wowever, compared with clear liquid diet, both soft and solid diets did not show any significant differences for recurrence of pain after re-feeding, either alone [relative risk (RR): 0.95; 95% CI: 0.51-1.87 (RR: 0.22; 95% CI: 0.47-1.36; P = 0.88] and (RR: 1.22; 95% CI: 0.69-2.16; ). CONCLUSION: The non-liquid soft or solid diet did not increase pain recurrence after re-feeding, compared with the clear-liquid diet. The non-liquid diet reduced hospitalization.