What does this research mean for the field?

A short atrioventricular delay decreases cardiac output by approximately 12% due to interrupted late diastolic atrial transport, demonstrating that properly timed atrial contraction is necessary for optimal AV sequential pacing. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

December 1, 1990Pacing and Clinical Electrophysiology

Effect of Short Atrioventricular Delay on Cardiac Output

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Why the study?

Does short AV delay reduce cardiac output in AV blocked canine preparations during AV sequential pacing?

Population

Closed chest, AV blocked canine preparations (N=10)

Comparison

Short AV delay during AV sequential pacing vs Longer AV delay during AV sequential pacing

Design

Preclinical

Authors

ARA RónaszékiSemmelweis University HEHugo EctorEuropean Society of Cardiology BDB DenefUniversitair Ziekenhuis Leuven

Discussion

Member takes

Implication

Short AV delay may reduce CO in paced canines; leaves open relevance to human AV optimization.

Structured PICO

Does short AV delay reduce cardiac output in AV blocked canine preparations during AV sequential pacing?

Population

Closed chest, AV blocked canine preparations (N=10)

Intervention

Short AV delay (PR: 56 +/- 11 ms) during AV sequential pacing (80 bpm)

Comparator

Longer AV delay (PR: 219 +/- 25 ms) during AV sequential pacing (80 bpm)

Outcome

Cardiac output (CO) measured by thermodilution techniquesurrogate

Short AV delay during AV sequential pacing decreases cardiac output by interrupting late diastolic atrial transport in a canine model.

Cite This Study

Rónaszéki et al. (1990) studied this question.

synapsesocial.com/papers/6a1bd85d26cb5670aa9cfed2 https://doi.org/10.1111/j.1540-8159.1990.tb06880.x

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Effect of Short Atrioventricular Delay on Cardiac Output

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Effect of Short Atrioventricular Delay on Cardiac Output

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Also Consider

Also Consider