Acute blood pressure changes after the onset of atrioventricular nodal reentrant tachycardia: A time-course analysis

Mehdi Razavi, David M. Luria, Arshad Jahangir, David O. Hodge, Phillip Anson Low, Win Kuang Shen

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Introduction: We aimed to characterize blood pressure (BP) response at the beginning of atrioventricular nodal reentrant tachycardia (AVNRT) and its relationship to orthostatic challenge and variable atrioventricular interval. Methods and Results: In this prospective study of 17 consecutive patients with documented AVNRT, mean BP was analyzed in the supine and upright positions during sinus rhythm, AVNRT, and pacing with atrioventricular delay of 150 msec (AV150) and 0 msec (AV0). Mean BPs were compared at 3-5 seconds, 8-10 seconds, and 28-30 seconds after the onset of AVNRT or pacing. BP decreased immediately after AVNRT initiation, with gradual recovery during the first 30 seconds from 71.9 ± 16.5 mmHg to 86 ± 13.8 mmHg, P < 0.01. A similar pattern was observed during AV0, but not during AV150, pacing. While supine, mean BP decrease was more pronounced during AVNRT and AV0 pacing (-26.1% and -32.1%, respectively) than during AV150 pacing (-8%, P = 0.02 and P = 0.07, respectively). This difference subsided 30 seconds after the onset of AVNRT or pacing. When upright, the mean BP time course was similar, but mean BP recovery during AVNRT was slower, and the difference between mean BP during AVNRT and AV150 persisted at 30 seconds. Conclusions: The initial mean BP decrease during AVNRT recovered gradually within 30 seconds. A short atrioventricular interval is associated with a greater mean BP decrease at the onset of tachycardia. These observations may explain clinical symptoms immediately after the onset of AVNRT.

Original languageEnglish (US)
Pages (from-to)1037-1040
Number of pages4
JournalJournal of Cardiovascular Electrophysiology
Volume16
Issue number10
DOIs
StatePublished - Oct 2005

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Atrioventricular Nodal Reentry Tachycardia
Blood Pressure
Supine Position
Tachycardia

Keywords

  • Atrioventricular interval
  • Atrioventricular nodal reentrant tachycardia
  • Upright tilt test

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology

Cite this

Acute blood pressure changes after the onset of atrioventricular nodal reentrant tachycardia : A time-course analysis. / Razavi, Mehdi; Luria, David M.; Jahangir, Arshad; Hodge, David O.; Low, Phillip Anson; Shen, Win Kuang.

In: Journal of Cardiovascular Electrophysiology, Vol. 16, No. 10, 10.2005, p. 1037-1040.

Research output: Contribution to journalArticle

Razavi, Mehdi ; Luria, David M. ; Jahangir, Arshad ; Hodge, David O. ; Low, Phillip Anson ; Shen, Win Kuang. / Acute blood pressure changes after the onset of atrioventricular nodal reentrant tachycardia : A time-course analysis. In: Journal of Cardiovascular Electrophysiology. 2005 ; Vol. 16, No. 10. pp. 1037-1040.
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abstract = "Introduction: We aimed to characterize blood pressure (BP) response at the beginning of atrioventricular nodal reentrant tachycardia (AVNRT) and its relationship to orthostatic challenge and variable atrioventricular interval. Methods and Results: In this prospective study of 17 consecutive patients with documented AVNRT, mean BP was analyzed in the supine and upright positions during sinus rhythm, AVNRT, and pacing with atrioventricular delay of 150 msec (AV150) and 0 msec (AV0). Mean BPs were compared at 3-5 seconds, 8-10 seconds, and 28-30 seconds after the onset of AVNRT or pacing. BP decreased immediately after AVNRT initiation, with gradual recovery during the first 30 seconds from 71.9 ± 16.5 mmHg to 86 ± 13.8 mmHg, P < 0.01. A similar pattern was observed during AV0, but not during AV150, pacing. While supine, mean BP decrease was more pronounced during AVNRT and AV0 pacing (-26.1{\%} and -32.1{\%}, respectively) than during AV150 pacing (-8{\%}, P = 0.02 and P = 0.07, respectively). This difference subsided 30 seconds after the onset of AVNRT or pacing. When upright, the mean BP time course was similar, but mean BP recovery during AVNRT was slower, and the difference between mean BP during AVNRT and AV150 persisted at 30 seconds. Conclusions: The initial mean BP decrease during AVNRT recovered gradually within 30 seconds. A short atrioventricular interval is associated with a greater mean BP decrease at the onset of tachycardia. These observations may explain clinical symptoms immediately after the onset of AVNRT.",
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T1 - Acute blood pressure changes after the onset of atrioventricular nodal reentrant tachycardia

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AU - Razavi, Mehdi

AU - Luria, David M.

AU - Jahangir, Arshad

AU - Hodge, David O.

AU - Low, Phillip Anson

AU - Shen, Win Kuang

PY - 2005/10

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AB - Introduction: We aimed to characterize blood pressure (BP) response at the beginning of atrioventricular nodal reentrant tachycardia (AVNRT) and its relationship to orthostatic challenge and variable atrioventricular interval. Methods and Results: In this prospective study of 17 consecutive patients with documented AVNRT, mean BP was analyzed in the supine and upright positions during sinus rhythm, AVNRT, and pacing with atrioventricular delay of 150 msec (AV150) and 0 msec (AV0). Mean BPs were compared at 3-5 seconds, 8-10 seconds, and 28-30 seconds after the onset of AVNRT or pacing. BP decreased immediately after AVNRT initiation, with gradual recovery during the first 30 seconds from 71.9 ± 16.5 mmHg to 86 ± 13.8 mmHg, P < 0.01. A similar pattern was observed during AV0, but not during AV150, pacing. While supine, mean BP decrease was more pronounced during AVNRT and AV0 pacing (-26.1% and -32.1%, respectively) than during AV150 pacing (-8%, P = 0.02 and P = 0.07, respectively). This difference subsided 30 seconds after the onset of AVNRT or pacing. When upright, the mean BP time course was similar, but mean BP recovery during AVNRT was slower, and the difference between mean BP during AVNRT and AV150 persisted at 30 seconds. Conclusions: The initial mean BP decrease during AVNRT recovered gradually within 30 seconds. A short atrioventricular interval is associated with a greater mean BP decrease at the onset of tachycardia. These observations may explain clinical symptoms immediately after the onset of AVNRT.

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KW - Upright tilt test

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