As shown in studies, aggressive hydration during the perioperative period of endoscopic retrograde cholangiopancreatography (ERCP) effectively prevents post-ERCP pancreatitis (PEP). We conducted a systematic review and meta-analysis to evaluate the clinical effectiveness and safety of aggressive hydration with lactated Ringer solution at preventing PEP.
We searched all relevant research from PubMed, the Cochrane Library, Embase, the Web of Science, ClinicalTrial.gov, and Scopus database for randomized controlled trials (RCTs) published before March 2017. Reference lists from reviews or relevant articles were screened for RCTs. The primary outcomes were the incidence of PEP and the incidence of moderate to severe pancreatitis. The secondary outcomes were the incidence of hyperamylasemia and pain and the length of hospital stay. The meta-analysis was conducted using the Cochrane Program Review Manager.
Three RCTs were included in our study. On the basis of the results of the meta-analysis, the aggressive hydration group had a lower incidence of pancreatitis after ERCP [odds ratio (OR)=0.29; 95% confidence interval (CI), 0.16-0.53]; a lower incidence of moderate to severe PEP (OR=0.16; 95% CI, 0.03-0.96); lower incidence of hyperamylasemia (OR=0.38; 95% CI, 0.25-0.59); lower risk of pain (OR=0.17; 95% CI, 0.08-0.38); and a shorter duration of hospital stay (standardized mean difference=-0.41; 95% CI, -0.69 to -0.14).
Aggressive hydration with lactated Ringer solution can reduce the overall incidence of PEP, moderate to severe pancreatitis and hyperamylasemia, shorten the length of hospitalization and reduce pain.