Transesophageal versus intracardiac atrial stimulation in assessing electrophysiologic parameters of the sinus and AV nodes and of the atrial myocardium

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Fältnamn	Indikatorer	Metadata
000		03377naa a2200457 4500
001		oai:DiVA.org:uu-69375
003		SwePub
008		050331s1987 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-693752 URI
024	7	a https://doi.org/10.1111/j.1540-8159.1987.tb06127.x2 DOI
040		a (SwePub)uu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Blomström-Lundqvist, Cu Uppsala universitet,Institutionen för medicinska vetenskaper,Cardiology-arrhythmia4 aut0 (Swepub:uu)carinabl
245	1 0	a Transesophageal versus intracardiac atrial stimulation in assessing electrophysiologic parameters of the sinus and AV nodes and of the atrial myocardium
264	1	b Wiley,c 1987
338		a print2 rdacarrier
520		a Electrophysiological porameters of the sinus and AV nodes and of the atrial myocardium were assessed with both transesophageal atrial stimulation (TAS) and intracardiac atrial stimulation (ICS) in the same patient during the same study. The study group was comprised of nine men and seven women, aged 45 to 79 years, referred for the evaluation of syncope of possible arrhythmogenic origin. Twelve patients were included for analysis. Autonomic inhibition (AI) was obtained in five patients. The most striking result was the significantly longer AERP with TAS (mean 286 ± 9 ms) than with ICS (mean 244 ± 12 ms; p < 0.02). After AI, the AERP was even more prolonged with TAS (mean 332 ± 20 ms) than with ICS (mean 237 ± 8 ms; p < 0.01). Intraatrial and AV nodal conduction times assessed at multiple paced cycle lengths were significantly shorter with TAS than with ICS. There was no difference between TAS and ICS with regard to AVERP, Wenckebach periodicity and H-V intervals. Although a tendency towards shorter sinus node recovery time (SNRT) and sinoatrial conduction time (SACT) was observed with TAS, the difference was not statistically significant. Possible mechanisms of the differences are discussed. It seemed clear that the site of origin of an atrial impulse can have definite effects upon excitability and conduction properties of atrial and AV nodal fibers. Enhanced sympathetic activity during TAS was also suggested. The electrophysiological properties inherent in the TAS technique warrant further elucidation.
653		a Aged
653		a Atrial Function
653		a Atrioventricular Node/*physiology
653		a Cardiac Pacing; Artificial/*methods
653		a Esophagus
653		a Female
653		a Heart Conduction System/*physiology
653		a Humans
653		a Male
653		a Middle Aged
653		a Research Support; Non-U.S. Gov't
653		a Sinoatrial Node/*physiology
653		a Syncope/physiopathology
653		a MEDICINE
653		a MEDICIN
700	1	a Edvardsson, N4 aut
710	2	a Uppsala universitetb Institutionen för medicinska vetenskaper4 org
773	0	t Pacing and Clinical Electrophysiologyd : Wileyg 10:5, s. 1081-1095q 10:5<1081-1095x 0147-8389x 1540-8159
856	4	u http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Retrieve&list_uids=2444932&dopt=Citation
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-69375
856	4 8	u https://doi.org/10.1111/j.1540-8159.1987.tb06127.x

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Av lärosätet: Uppsala universitet

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