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March 1, 1983Pacing and Clinical Electrophysiology

Comparison of Resting Hemodynamic Indices and Exercise Performance During Atrial Synchronized and Asynchronous Ventricular Pacing

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Why the study?

Does atrial synchronized ventricular pacing improve resting hemodynamics and exercise tolerance compared to asynchronous ventricular pacing in patients with implanted pacemakers?

Population

35 patients with implanted pacemakers capable of being externally programmed to function in either atrial…

Comparison

Atrial synchronized ventricular pacing (VAT) vs Asynchronous ventricular pacing (VOO)

Design

Other, Double-blind

Follow-up

several weeks

Authors

LFLameh FananapazirNorthside HospitalVSVENKATESWARAN SRINIVASWythenshawe HospitalDBDavid BennettUniversity of Idaho

Discussion

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Implication

May support preferring VAT over VOO pacing in pacemaker patients; leaves open confirmation in randomized trials.

Structured PICO

Does atrial synchronized ventricular pacing improve resting hemodynamics and exercise tolerance compared to asynchronous ventricular pacing in patients with implanted pacemakers?

P
Population
35 patients with implanted pacemakers capable of being externally programmed to function in either atrial synchronized (VAT) or asynchronous ventricular (VOO) pacing modes.
I
Intervention
Atrial synchronized ventricular pacing (VAT)
C
Comparator
Asynchronous ventricular pacing (VOO)
O
Outcome
Resting hemodynamic indices (cardiac output, mean systemic arterial pressure, pulmonary artery end-diastolic pressure) and maximal exercise performance using the Bruce protocolsurrogate

Atrial synchronized ventricular pacing significantly improves resting hemodynamics and exercise tolerance compared to asynchronous pacing, with fewer adverse events during exercise.

Cite This Study

Fananapazir et al. (1983) studied this question.

synapsesocial.com/papers/6a9718288a4936f1ceb315cbhttps://doi.org/10.1111/j.1540-8159.1983.tb04347.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of physical work capacity and systolic time intervals with ventricular inhibited and atrial synchronous ventricular inhibited pacing.1981 · 67 citations
  2. 2Hemodynamic Consequences of Atrioventricular and Ventriculoatrial Pacing1978 · 138 citations
  3. 3SYNCHRONICITY OF VENTRICULAR CONTRACTION: OBSERVATIONS COMPARING HAeMODYNAMIC EFFECTS OF ATRIAL AND VENTRICULAR PACING1963 · 201 citations
  4. 4HAEMODYNAMIC EFFECT OF ATRIAL TRIGGERED VERSUS FIXED RATE PACING AT REST AND DURING EXERCISE IN COMPLETE HEART BLOCK1975 · 253 citations
  5. 5Chronic Ventricular Pacing with Ventriculoatrial Conduction Versus Atrial Pacing in Three Patients with Symptomatic Sinus Bradycardia1981 · 33 citations