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Comparative Study
Journal Article
Meta-Analysis
Review
Systematic Review
Balloon enteroscopy versus spiral enteroscopy for small-bowel disorders: a systematic review and meta-analysis.
Gastrointestinal Endoscopy 2017 December
BACKGROUND AND AIMS: Two novel enteroscopic procedures, balloon enteroscopy and spiral enteroscopy, have revolutionized the diagnostic and therapeutic approach to small-bowel disorders. These disorders that historically required surgical interventions are now investigated and managed nonsurgically. Only a few weakly powered studies have compared the outcomes of spiral enteroscopy and balloon enteroscopy. We conducted a systematic review and meta-analysis to compare the efficacy and safety of these 2 procedures.
METHODS: PubMed, Cochrane Library, Scopus, and clinicaltrials.gov databases were searched for all studies published up to January 12, 2017 comparing the efficacy and safety of balloon enteroscopy (single or double) and spiral enteroscopy. Primary outcomes of interest were diagnostic and therapeutic success rates. Other outcomes included procedure length, depth of maximal insertion (DMI), rate of complete enteroscopy, and adverse events. We calculated Odds ratios (ORs) for categorical variables and mean difference (MD) for continuous variables. The Mantel-Haenszel method was used to analyze the data. Fixed and random effect models were used for <50% heterogeneity and >50% heterogeneity, respectively.
RESULTS: Eight studies met the inclusion criteria for this meta-analysis. A total of 615 procedures were analyzed, which included 394 balloon enteroscopy and 221 spiral enteroscopy procedures. There were no significant differences in diagnostic and therapeutic success rates (OR, 1.27; 95% confidence interval [CI], .86-1.88; P = .22; and OR, 1.23; 95% CI, .82-1.84; P = .32, respectively) between the 2 procedures. Similarly, DMI was not significantly different between the 2 groups (MD, 26.29; 95% CI, 20.92-73.49; P = .28). However, the procedure time was significantly shorter for the spiral enteroscopy group compared with the balloon enteroscopy group (MD, 11.26; 95% CI, 2.72-19.79; P = .010). A subgroup analysis comparing double balloon enteroscopy with spiral enteroscopy yielded similar results.
CONCLUSIONS: Both procedures achieved similar diagnostic and therapeutic outcomes and with similar depth of insertion. Spiral enteroscopy has the benefit of shorter procedural time.
METHODS: PubMed, Cochrane Library, Scopus, and clinicaltrials.gov databases were searched for all studies published up to January 12, 2017 comparing the efficacy and safety of balloon enteroscopy (single or double) and spiral enteroscopy. Primary outcomes of interest were diagnostic and therapeutic success rates. Other outcomes included procedure length, depth of maximal insertion (DMI), rate of complete enteroscopy, and adverse events. We calculated Odds ratios (ORs) for categorical variables and mean difference (MD) for continuous variables. The Mantel-Haenszel method was used to analyze the data. Fixed and random effect models were used for <50% heterogeneity and >50% heterogeneity, respectively.
RESULTS: Eight studies met the inclusion criteria for this meta-analysis. A total of 615 procedures were analyzed, which included 394 balloon enteroscopy and 221 spiral enteroscopy procedures. There were no significant differences in diagnostic and therapeutic success rates (OR, 1.27; 95% confidence interval [CI], .86-1.88; P = .22; and OR, 1.23; 95% CI, .82-1.84; P = .32, respectively) between the 2 procedures. Similarly, DMI was not significantly different between the 2 groups (MD, 26.29; 95% CI, 20.92-73.49; P = .28). However, the procedure time was significantly shorter for the spiral enteroscopy group compared with the balloon enteroscopy group (MD, 11.26; 95% CI, 2.72-19.79; P = .010). A subgroup analysis comparing double balloon enteroscopy with spiral enteroscopy yielded similar results.
CONCLUSIONS: Both procedures achieved similar diagnostic and therapeutic outcomes and with similar depth of insertion. Spiral enteroscopy has the benefit of shorter procedural time.
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