Terpene Compound Drug as Medical Expulsive Therapy for Ureterolithiasis: A Meta-analysis

Terpene Compound Drug as Medical Expulsive Therapy for Ureterolithiasis: A Meta-analysis
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Title:Terpene Compound Drug as Medical Expulsive Therapy for Ureterolithiasis: A Meta-analysis
Author/Abstract:

Michael E. Chua, MD; Jane H. Park, MD; Josefino C. Castillo, MD, FPUA;
Marcelino L. Morales Jr., MD, FPUA
Institute of Urology, St. Luke’s Medical Center

Objective: To investigate the efficacy of terpene compound drug (pinene, camphene, borneol, anethole, fenchone and cineol in olive oil) in facilitating spontaneous passage of ureteral calculi

Methods: Systematic literature search of the MEDLINE, EMBASE, OVID, Science Direct, Proquest,
Google scholar, Cochrane Library databases and reference lists of related literature was done without language restriction. Trials on ureterolithiasis medical expulsive therapy (MET) that compare terpene compound drug versus placebo/control group or alpha-blockers were identified. Articles retrieved were critically appraised by two independent reviewers according to Cochrane Collaboration recommendations. Data from included studies were extracted for calculation of risk ratio (RR) and 95% confidence interval (CI). Effect estimates were pooled using Mantel-Haenszel method with random effect model. Inter-study heterogeneity and publication bias were assessed. The PRISMA guidelines for meta-analysis reporting were followed.

Results: Five trials (total of 344 subjects) of adequate methodological quality were included. Pooled
effect estimates from homogenous studies showed that compared to placebo/control group, patients
treated with terpene compound drug had significantly higher ureteral calculi expulsion rate (pooled
RR: 1.34; 95% CI 1.12, 1.61). Analysis of studies that compare terpene compound drug with alphablockers showed no significant difference (pooled RR: 0.79; 95% CI 0.59, 1.06), although significant inter-study heterogeneity was noted. Only minor gastrointestinal adverse effect was reported on terpene compound drug use.

Conclusions: The results suggest that terpene compound drug as MET is effective in promoting passage of ureterolithiasis. High quality large-scale RCTs comparing alpha-blockers and terpene compound drug are warranted to make a more definitive conclusion.

Key words: Medical expulsive therapy, ureterolithiasis, terpene compound drug, alpha-blockers

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