Key result
Echo-guided atrial capture determination enables threshold programming in a pacemaker-dependent patient with CHD.
Why the study?
Identifying atrial depolarization on surface ECG can be difficult in dual-chamber pacing, complicating the ascertainment of reliable atrial capture.
Case Report (n=1)
Echocardiography can serve as a useful adjunct to surface ECG for determining atrial capture thresholds in pacemaker-dependent patients with severely diseased atria.
Determination of the pacemaker atrial capture threshold is critical to ensuring appropriate pacemaker function and is routinely assessed during device interrogation. However, in dual-chamber pacing, it is sometimes difficult to identify atrial depolarization on surface electrocardiogram (ECG), which complicates ascertainment of reliable atrial capture.1 Progressive cardiac disease can also result in elevated capture thresholds, which can manifest as a failure to capture. We present a case of echocardiography-guided determination of atrial capture for programming of atrial thresholds in a pacemaker-dependent patient with severely diseased atria resulting from congenital heart disease.
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Mehta et al. (2020) conducted a case report in Congenital heart disease with severely diseased atria, pacemaker-dependent (n=1). Echocardiography-guided determination of atrial capture was evaluated. Echocardiography-guided determination of atrial capture was utilized for programming atrial thresholds in a pacemaker-dependent patient with congenital heart disease.
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