EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Electrophysiologic test in supine and upright position in patients with wolff parkinson white syndrome






Giornale Italiano di Cardiologia 17(7): 569-574

Electrophysiologic test in supine and upright position in patients with wolff parkinson white syndrome

It is well known that in patients with Wolff-Parkinson-White (W.P.W.) adrenergic activity stimulation induced by exercise or isoproterenol I.V. infusion shortens the anteroigrade effective refractory period (E.R.P.) of the accessory pathway. Our purpose was to evaluate whether the upright position produces similar changes on the electrophysiologic properties of the accessory pathway and influences reciprocating tachycardias induction. In 18 patients, with W.P.W. syndrome, who underwent electrophysiologic study, we determined the anterograde E.R.P. of the accessory pathway and attempted to induce a reciprocating tachycardia in the supine and in the supine and in the upright position. In 13 patients (72%) the anterograde E.R.P. of the accessory pathway shortened in the upright position (303 .+-. 104 msec vs 331 .+-. 123 msec; p < 0.001): in 4 patients (22%) it was unchanged; in 1 patient was not defined, being inferior to the atrium E.R.P. We were able to induce a reciprocating tachycardia in 3 patients in the supine position, in 6 patients in the upright position. Electrophysiologic testing in the upright position improves the evaluation of the accessory pathway electrophysiologic properties.


Accession: 005349362



Related references

Electrophysiologic study in supine and upright positions in patients with Wolff-Parkinson-White syndrome. Giornale Italiano di Cardiologia 17(7): 569-574, 1987

Usefulness of electrophysiologic testing in a standing position or during exercise in a supine position in patients with Wolff-Parkinson-White syndrome. Japanese Circulation Journal 57(7): 705, 1993

Clinical significance of exercise and electrophysiologic test in patients with asymptomatic wolff parkinson white syndrome. Japanese Circulation Journal 50(6): 553, 1986

Diagnosis and cure of the Wolff-Parkinson-White syndrome or paroxysmal supraventricular tachycardias during a single electrophysiologic test. New England Journal of Medicine 324(23): 1612-1618, 1991

Appropriate electrophysiologic study and treatment of patients with the Wolff-Parkinson-White syndrome. Journal of the American College of Cardiology 11(5): 1124-1129, 1988

Atrial electrophysiologic properties of patients with asymptomatic Wolff-Parkinson-White syndrome. European Heart Journal 9(5): 479-483, 1988

Electrophysiologic effects of disopyramide phosphate in patients with Wolff-Parkinson-White syndrome. Circulation 65(5): 869-878, 1982

Electrophysiologic examination in surgical treatment of patients with Wolff-Parkinson-White syndrome. Kardiologia Polska 38(1): 43-48, 1993

Sotalol in patients with Wolff-Parkinson-White syndrome Electrophysiologic and clinical study. Cardiovascular Drugs & Therapy 7(SUPPL 2): 400, 1993

Electrophysiologic and long term effects of propafenone in patients with wolff parkinson white syndrome. American Heart Association Monograph (107): II-55, 1984