| Follow-up of asystolic episodes in patients with cardioinhibitory, neurally mediated syncope and VVI pacemaker. | |
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MedLine Citation:
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PMID: 8237805 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The occurrence rate of spontaneous asystolic episodes during long-term follow-up in patients with abnormal asystolic responses induced by means of vasovagal maneuvers was evaluated. The heart rate of 23 patients (mean age 64 +/- 12 years; 6 women and 17 men) affected by neurally mediated syncope (mean 4.3 +/- 4.9 episodes) was continuously monitored by a specially designed implanted pacemaker able to detect and store in its memory all asystolic episodes lasting 3 to 6 or > 6 seconds. Asystolic, neurally mediated syncope was diagnosed when a reflex asystole of > 3 seconds was induced during carotid sinus massage (n = 22), eyeball compression test (n = 3) or head-up tilt test (n = 2). During a total of 357 months (mean 15 +/- 7) of monitoring, asystolic episodes occurred in 17 patients (74%): 1,765 episodes of 3- to 6-second (median 3) duration occurred in 14 patients, and 47 episodes of > 6-second (median 2) duration occurred in 11. The actuarial estimates of occurrence of asystolic episodes of > 3 and > 6 seconds were 82 and 53%, respectively, after 2 years of follow-up. Only 12 episodes of 3 to 6 seconds (0.7%), and 20 episodes of > 6 seconds (43%) resulted in presyncopal or syncopal symptoms. Thus, an asystolic response to vasovagal maneuvers predicts the occurrence of spontaneous asystolic episodes during follow-up. With few exceptions, spontaneous episodes are asymptomatic and their incidence is low. |
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Authors:
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C Menozzi; M Brignole; G Lolli; N Bottoni; D Oddone; L Gianfranchi; G Gaggioli |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The American journal of cardiology Volume: 72 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1993 Nov |
Date Detail:
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Created Date: 1993-12-17 Completed Date: 1993-12-17 Revised Date: 2007-09-04 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1152-5 Citation Subset: AIM; IM; S |
Affiliation:
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Laboratory of Electrophysiology and Pacing, Ospedale S. Maria Nuova, Reggio Emilia, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Electrocardiography, Ambulatory Female Follow-Up Studies Heart Arrest / etiology, physiopathology* Heart Rate / physiology Humans Life Tables Male Middle Aged Pacemaker, Artificial* Predictive Value of Tests Prospective Studies Syncope / complications, physiopathology*, therapy Vagus Nerve / physiopathology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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