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January 1, 2021Mathematical Biosciences & EngineeringOpen Access

Modelling the cardiac response to a mechanical stimulation using a low-order model of the heart

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Key result

Diastolic mechanical stimulation eliminates ectopic beats in computational models, while systolic stimulation triggers arrhythmia.

Why the study?

Dysfunction of cardiac electrical mechanisms causes significant mortality, and mechano-electric feedback plays a key role in mechanical generation and recovery from arrhythmia.

Does mechanical stimulation affect the cardiac cycle and arrhythmia generation or recovery in a computational model of the heart?

Population

A minimal, multiscale model of the heart coupling organ-level and contractile dynamics

Comparison

Mechanical stimulation impulse timing, amplitude, and duration

Design

Computational modeling study

Authors

NPNicholas F. PearceEKEun‐jin Kim

Discussion

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Overview

Hypothesis-generating for timing-specific mechanical effects on arrhythmia; requires in vivo validation before clinical consideration.

Structured PICO

Does mechanical stimulation affect the cardiac cycle and arrhythmia generation or recovery in a computational model of the heart?

P
Population
A minimal, multiscale computational model of the heart coupling organ level dynamics (left ventricular pressure and volume) and contractile dynamics
I
Intervention
Mechanical stimulation introduced as a short, sudden impulse in the muscle microscale stress
O
Outcome
Effect of timing, amplitude, and duration of the mechanical impulse on the cardiac cycle (stabilisation of pulse rate, elimination of ectopic beats, or generation of arrhythmia)surrogate

A computational model demonstrates that mechanical stimulation can either stabilize arrhythmias or generate them depending on its timing within the cardiac cycle.

Cite This Study

Pearce et al. (2021) studied Arrhythmia. Mechanical stimulation (computational model) was evaluated on Cardiac cycle response (pulse rate stabilization and arrhythmia generation). Mechanical stimulation introduced during the diastolic period in a computational heart model stabilized pulse rate and eliminated ectopic beats, whereas systolic stimulation generated arrhythmia.

synapsesocial.com/papers/6a08dbee27ceb0c2a2d609d4https://doi.org/10.3934/mbe.2021248
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Also Consider

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

  1. 1Mechano-electric effect and a heart assist device in the synergistic model of cardiac function2020 · 7 citations
  2. 2Computational modelling of mechano-electric feedback and its arrhythmogenic effects in human ventricular models2022 · 10 citations
  3. 3Mechanoelectric effects in healthy cardiac function and under Left Bundle Branch Block pathology2023 · 7 citations
  4. 4An integrative appraisal of mechano-electric feedback mechanisms in the heart2017 · 50 citations
  5. 5Mechanoelectric feedback in cardiac cells2001 · 109 citations