Int J Arrhythm.  2021 Mar;22(1):2. 10.1186/s42444-021-00030-2.

Modified valsalva versus standard valsalva for cardioversion of supraventricular tachycardia: systematic review and meta‑analysis

Affiliations
  • 1College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
  • 2College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
  • 3King Abdullah International Medical Research Center, Jeddah, Saudi Arabia.

Abstract

Background
Supraventricular tachycardia (SVT) is a major cause of emergency room visits where vagal maneuver is used as first-line therapy. The valsalva maneuver (VM) is proven to be safe and, to some extent, effective in termi‑ nating SVT episodes. We aimed to compare the standard VM (SVM) to the modified valsalva maneuver (MVM). We hypothesized that MVM is more effective in terminating SVT episodes and reducing the time spent in the emergency department.
Methods
In this systematic review and meta-analysis, we searched Medline/PubMed, Ovid, Web of Science, and Cochrane Central Register of Controlled trials. We included only randomized controlled trials (RCTs) that compared the modified valsalva to the standard valsalva maneuver in treating SVT. Our main outcome was the termination of SVT within 1 min.
Results
Four articles met the eligibility criteria of our review. Sinus rhythm was achieved 2.5 times more in the MVM group compared to the SVM group (risk ratio (RR) = 2.54, CI 1.98–3.24, P < 0.001) and thus lowered the need of intrave‑ nous SVT termination medication without any significant increase in adverse events or time spent in the emergency department.
Conclusion
Our review found MVM to be more effective than the SVM in terminating SVT. This should encourage broader adoption of the MVM as a first-line vagal maneuver in subjects presenting with SVT in the emergency room.

Keyword

Supraventricular tachycardia; Valsalva maneuver; Trendelenburg position
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