QT Sensing Rate Responsive Pacing and Myocardial Infarction:

Edelstam, C.; Hedman, Anders; Nordlander, Rolf; Pehrsson, S. Kenneth

doi:10.1111/j.1540-8159.1989.tb02687.x

Cited by 9 publications

(1 citation statement)

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“…In patients with coronary artery disease, there is a particular need for care when using QT-based rate modulation pacing settings. In these patients, ischemic pain may induce a pacemaker response in the form of an increase in heart rate by increasing the adrenergic response, which carries a small risk of increasing pain in a vicious circle by increasing the heart rate [ 87 , 88 , 89 ].…”

Section: Rate Response In Implantable Cardiac Pacemakersmentioning

confidence: 99%

Rate-Responsive Cardiac Pacing: Technological Solutions and Their Applications

Świerżyńska

Oręziak

Główczyńska

et al. 2023

Sensors

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Modern cardiac pacemakers are equipped with a function that allows the heart rate to adapt to the current needs of the patient in situations of increased demand related to exercise and stress ("rate-response" function). This function may be based on a variety of mechanisms, such as a built-in accelerometer responding to increased chest movement or algorithms sensing metabolic demand for oxygen, analysis of intrathoracic impedance, and analysis of the heart rhythm (Q-T interval). The latest technologies in the field of rate-response functionality relate to the use of an accelerometer in leadless endocavitary pacemakers; in these devices, the accelerometer enables mapping of the mechanical wave of the heart's work cycle, enabling the pacemaker to correctly sense native impulses and stimulate the ventricles in synchrony with the cycles of atria and heart valves. Another modern system for synchronizing pacing rate with the patient's real-time needs requires a closed-loop system that continuously monitors changes in the dynamics of heart contractions. This article discusses the technical details of various solutions for detecting and responding to situations related to increased oxygen demand (e.g., exercise or stress) in implantable pacemakers, and reviews the results of clinical trials regarding the use of these algorithms.

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Section: Rate Response In Implantable Cardiac Pacemakersmentioning

confidence: 99%