From: Modified valsalva versus standard valsalva for cardioversion of supraventricular tachycardia: systematic review and meta-analysis
Study
Randomization
Deviations from the intended intervention
Missing outcomes data
Measurement of the outcome
Selection of the reported results
Overall risk of bias
Appelboam et al. [2]
⊖
Chen et al. (2019)
⍰
⊕
Ceylan et al. [3]
Çorbacıoğlu (2017) [5]