Potential dangers of the Valsalva maneuver and adenosine in paroxysmal supraventricular tachycardia--beware preexcitation.

@article{Nagappan2002PotentialDO,
  title={Potential dangers of the Valsalva maneuver and adenosine in paroxysmal supraventricular tachycardia--beware preexcitation.},
  author={Ramesh Nagappan and Sumesh M. Arora and Craig Winter},
  journal={Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine},
  year={2002},
  volume={4 2},
  pages={107-11}
}
Paroxysmal supraventricular tachycardia (PSVT) is a common clinical problem. Valsalva maneuver and adenosine are effective therapies for many patients with PSVT, although any conversion to an irregular or wide complex tachycardia should prompt consideration of a preexcitation syndrome. We report a case where the Valsalva maneuver and adenosine, in a patient with PSVT and previously undiagnosed Wolff-Parkinson-White syndrome, caused atrial fibrillation and led to a haemodynamically unstable wide… CONTINUE READING