Comparing Physical, Pharmacological, Pacemaker, and Cardioneuroablation Therapies for Patients with Vasovagal Syncope: A systematic review and network meta-analysis
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引用次数: 0
Abstract
Background
Vasovagal syncope (VVS) represents the most frequent syncope subtype, but evidence comparing treatment strategies remains limited. This network meta-analysis (NMA) evaluates physical, pharmacological, pacemaker, and cardioneuroablation (CNA) therapies for VVS.
Methods
We conducted a Bayesian NMA of randomized controlled trials (RCTs) from PubMed, Embase, and Web of Science. The primary outcome was spontaneous syncope recurrence, and the secondary outcome was head-up tilt test (HUTT) positivity. Network geometry and treatment rankings were evaluated using Surface Under the Cumulative Ranking values.
Results
A total of 49 RCTs involving 2,798 patients assigned to various treatments were included. For spontaneous syncope recurrence, CNA [OR = 0.077, 95% CrI (0.015, 0.403)], pacing [OR = 0.075, 95% CrI (0.023, 0.22)], pharmacological [OR = 0.33, 95% CrI (0.11, 0.94)], and physical [OR = 0.27, 95% CrI (0.13, 0.57)] therapies were all superior to conventional therapy. Regarding HUTT outcomes, only pharmacological [OR = 5.5, 95% CrI (2.6, 12.0)] and physical [OR = 12, 95% CrI (2.9, 50.0)] therapies showed significant differences compared with placebo. Subgroup analysis identified dual-chamber pacing with closed-loop stimulation (DDD-CLS) as the highest-ranked therapy. Midodrine was the superior pharmacological option, and selective serotonin reuptake inhibitors demonstrated efficacy.
Conclusions
This NMA supports a stratified management approach for VVS. Physical and conventional therapies should be first-line. DDD-CLS pacing shows superior efficacy for cardioinhibitory VVS, while midodrine is the preferred pharmacological option. Although CNA demonstrates promise, it is constrained by limited direct evidence and should be considered hypothesis-generating, underscoring the need for head-to-head RCTs with long-term follow-up.
期刊介绍:
IJC Heart & Vasculature is an online-only, open-access journal dedicated to publishing original articles and reviews (also Editorials and Letters to the Editor) which report on structural and functional cardiovascular pathology, with an emphasis on imaging and disease pathophysiology. Articles must be authentic, educational, clinically relevant, and original in their content and scientific approach. IJC Heart & Vasculature requires the highest standards of scientific integrity in order to promote reliable, reproducible and verifiable research findings. All authors are advised to consult the Principles of Ethical Publishing in the International Journal of Cardiology before submitting a manuscript. Submission of a manuscript to this journal gives the publisher the right to publish that paper if it is accepted. Manuscripts may be edited to improve clarity and expression.