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Impact of a modified Valsalva manoeuvre in the termination of paroxysmal supraventricular tachycardia.
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Abstract
Paroxysmal supraventricular tachycardia (SVT) is a relatively common problem presented to the emergency department. Most sources advocate the use of vagal manoeuvres as first-line management, including Valsalva manoeuvre. Despite this, there is lack of standardisation as to how the technique is performed. There is currently no 'gold standard' Valsalva manoeuvre. We propose a modified Valsalva manoeuvre, based on techniques described in small-scale electrophysiological studies, but no large clinical trials.