How to Differentiate VT or SVT13 + 2 weeks of gestation. During the examination, fetal. SVT at a rate of 292 bpm was identified, as well as severe fetal hydrops (Figure 1). In this issue - svtgbi? 1:1 AV relationship can occur in both VT and SVT ... SVT and adenosine-sensitive VT. ? AV block with ... Clinical arrhythmology and electrophysiology 2nd edition.