The most interesting finding was that the programmer showed 99% atrial pacing
and less than 1% ventricular pacing (Fig.
The system is comprised of the Sonr hemodynamic sensor embedded in the Sonrtip atrial pacing
lead and the Paradym RF Sonr CRT D device, which includes an algorithm designed to automatically optimize the patient's atrioventricular delay and interventricular delay timing.
Until now, my approach for patients who do not require atrial pacing
has been to implant single-chamber ICDs," said Bradley P.
These were the two major findings of the large, international, randomized ASSERT (Asymptomatic Atrial Fibrillation and Stroke Evaluation in Pacemaker Patients and the Atrial Fibrillation Reduction Atrial Pacing
In the presence of atrial pacing
leads, accurate diagnostic information can be obtained by obtaining a multi-lead atrial electrogram recording.
By gradually increasing the pacing current until stable capture of atrial pacing
was confirmed by surface ECG, the pacing threshold of all 9 electrode positions was found.
did not have a significant effect on episodes of sleep apnea, and the authors continue to recommend CPAP as the treatment of choice.
All pacemakers were initially programmed to initiate atrial pacing
when the heart rate fell below 40 beats per minute.
, the use of a pacemaker to control arrhythmia, was found to reduce the incidence of AF after cardiac surgery; however, biatrial pacing is recommended over single atrial pacing
Indeed, 36% of the 2,580 participants in ASSERT (Asymptomatic Atrial Fibrillation and Stroke Evaluation in Pacemaker Patients and the Atrial Fibrillation Reduction Atrial Pacing
Trial) had at least one such episode lasting for more than 6 minutes at an atrial rate of greater than 190 beats/min during a mean 2.
capitalize on the benefits of fixed high rate atrial pacing
The ASSERT study, or ASymptomatic AF and Stroke Evaluation in Pacemaker Patients and the AF Reduction Atrial Pacing
Trial, was designed to determine whether the detection of arrhythmias using pacemaker-based diagnostics predicts an increased risk of stroke in elderly, hypertensive patients without any history of atrial fibrillation (AF).