Key result
Accurate CIED diagnostics require careful attention to device settings, ventriculoatrial conduction, and far-field R-wave sensing.
Why the study?
Accurate diagnostic information from implantable dual-chamber cardiac devices requires careful attention to device settings and sensing parameters to detect atrial tachyarrhythmias correctly.
Accurate diagnostic information from implantable dual-chamber devices requires careful attention to device settings such as PVARP, atrial sensitivity, and far-field R wave sensing to avoid misinterpretation of atrial tachyarrhythmias.
Device settings and VA conduction warrant scrutiny for accurate mode-switch diagnostics; leaves open prospective validation of standardized protocols.
State‐of‐the‐art, implantable, dual‐chamber cardiac devices provide useful diagnostic information, including the number and duration of automatic‐mode switch episodes in cases of atrial tachycardia and atrial fibrillation encountered in clinical practice. However, to acquire accurate diagnostic information, special attention must be paid to the device settings; to the presence or absence of ventriculoatrial conduction, which, when present, often represents repetitive non‐reentrant synchrony (RNRVAS) or pacemaker‐mediated tachycardia; to the post‐ventricular atrial‐blanking period and atrial sensitivity; and to the sensing of far‐field R waves (FFRW) in the atrial channel. Physicians should be careful about the information gathered during the monitoring of patients with implantable devices.
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Haruhiko Abe (2012) conducted a review in Atrial tachycardia and atrial fibrillation. Implantable dual-chamber cardiac devices was evaluated. Accurate diagnostic information from implantable cardiac devices requires careful attention to device settings, ventriculoatrial conduction, and far-field R wave sensing.
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