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Proangiogenic Growth Factor Therapy for the Treatment of Refractory Angina: A Meta-analysis. | LitMetric

AI Article Synopsis

Article Abstract

Background: Refractory angina (RFA; limiting angina despite optimal medical therapy) is a growing, global problem, with limited treatment options. Therefore, we conducted a systematic review of randomized controlled trials (RCTs) to evaluate the effect of proangiogenic growth factor therapy (in the form of vascular growth factors delivered either as recombinant proteins or gene therapy) in patients with RFA ineligible for revascularization.

Methods: We performed a meta-analysis (PROSPERO: CRD42018107283) of RCTs as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses methodology. A comprehensive search of the PubMed, CENTRAL, Embase, Cochrane, ClinicalTrials.gov and Google Scholar databases, as well as scientific session abstracts, were performed. The pooled outcomes included major adverse cardiac events (MACE), mortality, myocardial perfusion, and indices of angina severity (Canadian Cardiovascular Society angina class [CCS] and exercise tolerance). A prespecified subgroup analysis was performed for delivery method, vector, and protein type. The standardized mean difference (SMD) or odds ratio (OR) was calculated to assess relevant outcomes. We assessed heterogeneity using the χ and I tests.

Results: We included 16 RCTs involving 1607 patients (1052 received proangiogenic growth factor therapy and 555 received a placebo or optimal medical therapy). Our analysis showed a significant decreased risk of MACE (OR, 0.72; 95% confidence interval [CI], 0.55-0.93) and significantly improved CCS class (SMD, -0.55; 95% CI, -1.10 to 0.00), but not mortality (OR, 0.66; 95% CI, 0.28-1.54) or exercise tolerance (SMD, 0.47; 95% CI, -0.14 to 1.09), in treated patients compared to those in the control group.

Conclusions: Proangiogenic growth factor therapy is a promising treatment option for RFA, with beneficial effects seen on MACE and CCS class. The results of ongoing trials are needed before it can be considered for clinical practice.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11307391PMC
http://dx.doi.org/10.1016/j.jscai.2022.100527DOI Listing

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