Research article - Peer-reviewed, 2007
Less syncope and milder symptoms in patients treated with pacing for induced cardioinhibitory carotid sinus syndrome: a randomized study
Claesson JE, Kristensson BE, Edvardsson N, Wahrborg PAbstract
Aims The aim of this study was to examine the effect on symptoms in patients with induced cardio-inhibitory carotid sinus syndrome (ICSS) when treated or not treated with a pacemaker. Methods and results Sixty patients with a history of syncope or pre-syncope and ICSS were randomized to receive a permanent pacemaker (P group, n = 30) or no pacing (NP group, n = 30). ICSS was defined as a ventricular pause (i.e. asystole) Lasting 3 s or more in response to carotid sinus stimulation. The patients were seen at 3 and 12 months and at symptoms. At 12 months, the rate of syncope in the NP group was 40% (n = 12) compared with 10% (n = 3) in the P group (P = 0.008). The majority (11 of 12) of the syncope recurrences in the NP group occurred during the first 3 months. Pre-syncope occurred in two patients (7%) in the NP group and in eight (27%) in the P group. Ten patients (33%) with recurrent syncope in the NP group later crossed-over to receive pacemaker implant. Conclusions A history of syncope or pre-syncope, plus ICSS, was a strong predictor of subsequent syncope or pre-syncope. Most of the new symptoms occurred within 3 months. Pacemaker treatment effectively reduced syncope and/or resulted in milder symptomsPublished in
EP-Europace2007, volume: 9, number: 10, pages: 932-936
Publisher: OXFORD UNIV PRESS
Authors' information
Währborg, Peter
Swedish University of Agricultural Sciences, Department of Work Science, Business Economics and Environmental Psychology
Claesson, Jan-Eric
Edvardsson, Nils
Kristensson, Bo-Erik
UKÄ Subject classification
Social Sciences
Economics and Business
Publication Identifiers
DOI: https://doi.org/10.1093/europace/eum180
URI (permanent link to this page)
https://res.slu.se/id/publ/16874