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Different lasers in the treatment of benign prostatic hyperplasia: a network meta-analysis.

ABSTRACT: All available surgical treatments for benign prostatic hyperplasia (BPH) have their individual advantages or disadvantages. However, the lack of head-to-head studies comparing different surgeries makes it unavailable to conduct direct analysis. To compare the efficacy and safety among different lasers and transurethral resection of prostate (TURP) for BPH, randomized controlled trials were searched in MEDLINE, EMBASE, Cochrane library, WHO International Clinical Trial Registration Platform, and Clinical Trial.gov by 2015.5; and the effectiveness-, perioperation- and complication-related outcomes were assessed by network meta-analysis. 36 studies involving 3831 patients were included. Holmium laser through resection and enucleation had the best efficacy in maximum flow rate. Thulium laser through vapo-resection was superior in improving international prostate symptom score and holmium laser through enucleation was the best for post-voiding residual volume improvement. Diode laser through vaporization was the rapidest in removing postoperative indwelling catheter, while TURP was the longest. TURP required the longest hospitalization and thulium laser through vapo-resection was relatively shorter. Holmium and thulium lasers seem to be relatively better in surgical efficacy and safety, so that these two lasers might be preferred in selection of optimal laser surgery. Actually, more large-scale and high quality head-to-head RCTs are suggested to validate the conclusions.

SUBMITTER: Zhang X

PROVIDER: S-EPMC4806333 | biostudies-other | 2016 Mar

REPOSITORIES: biostudies-other

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Project description:BackgroundAs an alternative to transurethral resection of the prostate (TURP), photoselective vaporization of the prostate (PVP) provides a bloodless, relatively painless relief of lower urinary tract symptoms for men with benign prostatic hyperplasia. Following a review of the evidence in 2006, the Ontario Health Technology Advisory Committee recommended that a study be conducted to evaluate PVP in Ontario.ObjectivesTo compare the clinical effectiveness, safety, cost-effectiveness, and budget impact of PVP compared to conventional TURP for the treatment of benign prostatic hyperplasia in Ontario.MethodsA prospective, nonrandomized trial was conducted in 3 Ontario centres. Consenting subjects were assessed at baseline and 1, 3, and 6 months following surgery. Outcome measures included International Prostate Symptom Score (IPSS), peak urinary flow rate (Qmax), post-void residual (PVR) volume, prostate-specific antigen (PSA), health-related quality of life (HRQOL) using the EuroQol 5 Domain questionnaire, and the Sexual Health Inventory for Men (SHIM) score. Adverse events, resource utilization, and productivity losses were also assessed. Cost-effectiveness and budget impact analyses were completed using data from the study.ResultsBetween February 2008 and August 2010, 164 subjects were enrolled in the study (n = 140 for PVP and n = 24 for TURP). Treatment outcomes were similar between the 2 groups at 6 months, with the IPSS decreasing similarly over time (P = 0.718). For other treatment outcomes (Qmax, PSA, HRQOL, SHIM) both treatments provided similar benefit over time; only changes in PVR volume favoured PVP (P = 0.018). The majority of PVP patients were managed on an outpatient basis, with only 7.1% requiring admission (all TURP subjects were inpatients). At 6 months, PVP was less costly than TURP ($3,891 versus $4,863; P = 0.001), with similar quality-adjusted life-years (0.448 versus 0.441; P = 0.658). PVP remained the most cost-effective treatment across all decision-making thresholds, with the technology costing less and providing similar clinical outcomes. Extrapolating the results to a provincial level indicated (based on an estimated case volume of 12,335 TURPs) that there is an opportunity to reallocate just over $14 million (Cdn), primarily related to the reduced need for hospital admission.LimitationsThis study was nonrandomized, and the results should be interpreted with some caution, despite generally similar baseline characteristics between the 2 groups. Recruiting individuals to the TURP arm was a challenge, resulting in a size imbalance between treatment arms.ConclusionsBased on this analysis, PVP appears to be a cost-effective alternative to TURP, providing similar clinical benefit at a lower cost to the health system.

Project description:OBJECTIVE:To assess the efficacy and safety of different endoscopic surgical treatments for benign prostatic hyperplasia. DESIGN:Systematic review and network meta-analysis of randomised controlled trials. DATA SOURCES:A comprehensive search of PubMed, Embase, and Cochrane databases from inception to 31 March 2019. STUDY SELECTION:Randomised controlled trials comparing vapourisation, resection, and enucleation of the prostate using monopolar, bipolar, or various laser systems (holmium, thulium, potassium titanyl phosphate, or diode) as surgical treatments for benign prostatic hyperplasia. The primary outcomes were the maximal flow rate (Qmax) and international prostate symptoms score (IPSS) at 12 months after surgical treatment. Secondary outcomes were Qmax and IPSS values at 6, 24, and 36 months after surgical treatment; perioperative parameters; and surgical complications. DATA EXTRACTION AND SYNTHESIS:Two independent reviewers extracted the study data and performed quality assessments using the Cochrane Risk of Bias Tool. The effect sizes were summarised using weighted mean differences for continuous outcomes and odds ratios for binary outcomes. Frequentist approach to the network meta-analysis was used to estimate comparative effects and safety. Ranking probabilities of each treatment were also calculated. RESULTS:109 trials with a total of 13?676 participants were identified. Nine surgical treatments were evaluated. Enucleation achieved better Qmax and IPSS values than resection and vapourisation methods at six and 12 months after surgical treatment, and the difference maintained up to 24 and 36 months after surgical treatment. For Qmax at 12 months after surgical treatment, the best three methods compared with monopolar transurethral resection of the prostate (TURP) were bipolar enucleation (mean difference 2.42 mL/s (95% confidence interval 1.11 to 3.73)), diode laser enucleation (1.86 (-0.17 to 3.88)), and holmium laser enucleation (1.07 (0.07 to 2.08)). The worst performing method was diode laser vapourisation (-1.90 (-5.07 to 1.27)). The results of IPSS at 12 months after treatment were similar to Qmax at 12 months after treatment. The best three methods, versus monopolar TURP, were diode laser enucleation (mean difference -1.00 (-2.41 to 0.40)), bipolar enucleation (0.87 (-1.80 to 0.07)), and holmium laser enucleation (-0.84 (-1.51 to 0.58)). The worst performing method was diode laser vapourisation (1.30 (-1.16 to 3.76)). Eight new methods were better at controlling bleeding than monopolar TURP, resulting in a shorter catheterisation duration, reduced postoperative haemoglobin declination, fewer clot retention events, and lower blood transfusion rate. However, short term transient urinary incontinence might still be a concern for enucleation methods, compared with resection methods (odds ratio 1.92, 1.39 to 2.65). No substantial inconsistency between direct and indirect evidence was detected in primary or secondary outcomes. CONCLUSION:Eight new endoscopic surgical methods for benign prostatic hyperplasia appeared to be superior in safety compared with monopolar TURP. Among these new treatments, enucleation methods showed better Qmax and IPSS values than vapourisation and resection methods. STUDY REGISTRATION:CRD42018099583.

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Different lasers in the treatment of benign prostatic hyperplasia: a network meta-analysis.

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