Abstract
His bundle recordings and premature atrial stimulation from coronary sinus, mid right atrium and high right atrium were performed in a patient with repetitive supraventricular tachycardias. Regardless of the paced site, there was a range of coupling intervals during which testing stimuli elicited short runs of premature beats. The corresponding P waves were positive in leads I, II and III and had a high to low right atrial activation sequence. Their morphology was similar to that of sinus beats. However, sustained tachycardia occurred only when pacing was performed from the coronary sinus. Therefore, it is postulated that the site of stimulation might be important in the genesis and (perhaps) perpetuation of this arrhythmia by changing the site and (or) mode of entry into the area where this type of tachycardia occurs. Though sinus node reentry was the most likely mechanism, it could not be determined whether the circuit involved the sinus node per se or the so called perinodal fibers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 165-169 |
| Number of pages | 5 |
| Journal | Journal of Electrocardiology |
| Volume | 9 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1976 |
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ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Effects of the pacing site in sinus node reentrant tachycardia. / Castellanos, Agustin; Aranda, J.; Moleiro, F.; Mallon, S. M.; Befeler, B.
In: Journal of Electrocardiology, Vol. 9, No. 2, 1976, p. 165-169.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of the pacing site in sinus node reentrant tachycardia
AU - Castellanos, Agustin
AU - Aranda, J.
AU - Moleiro, F.
AU - Mallon, S. M.
AU - Befeler, B.
PY - 1976
Y1 - 1976
N2 - His bundle recordings and premature atrial stimulation from coronary sinus, mid right atrium and high right atrium were performed in a patient with repetitive supraventricular tachycardias. Regardless of the paced site, there was a range of coupling intervals during which testing stimuli elicited short runs of premature beats. The corresponding P waves were positive in leads I, II and III and had a high to low right atrial activation sequence. Their morphology was similar to that of sinus beats. However, sustained tachycardia occurred only when pacing was performed from the coronary sinus. Therefore, it is postulated that the site of stimulation might be important in the genesis and (perhaps) perpetuation of this arrhythmia by changing the site and (or) mode of entry into the area where this type of tachycardia occurs. Though sinus node reentry was the most likely mechanism, it could not be determined whether the circuit involved the sinus node per se or the so called perinodal fibers.
AB - His bundle recordings and premature atrial stimulation from coronary sinus, mid right atrium and high right atrium were performed in a patient with repetitive supraventricular tachycardias. Regardless of the paced site, there was a range of coupling intervals during which testing stimuli elicited short runs of premature beats. The corresponding P waves were positive in leads I, II and III and had a high to low right atrial activation sequence. Their morphology was similar to that of sinus beats. However, sustained tachycardia occurred only when pacing was performed from the coronary sinus. Therefore, it is postulated that the site of stimulation might be important in the genesis and (perhaps) perpetuation of this arrhythmia by changing the site and (or) mode of entry into the area where this type of tachycardia occurs. Though sinus node reentry was the most likely mechanism, it could not be determined whether the circuit involved the sinus node per se or the so called perinodal fibers.
UR - http://www.scopus.com/inward/record.url?scp=84886613385&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886613385&partnerID=8YFLogxK
U2 - 10.1016/S0022-0736(76)80061-1
DO - 10.1016/S0022-0736(76)80061-1
M3 - Article
VL - 9
SP - 165
EP - 169
JO - Journal of Electrocardiology
JF - Journal of Electrocardiology
SN - 0022-0736
IS - 2
ER -