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November 1, 1996Pacing and Clinical Electrophysiology

Reliability of a New Algorithm for Automatic Mode Switching from DDDR to DDIR Pacing Mode in Sinus Node Disease Patients with Chronotropic Incompetence and Recurrent Paroxysmal Atrial Fibrillation

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Key result

The new automatic mode switching algorithm in the Medtronic Thera DR pacemaker reliably detected paroxysmal atrial fibrillation, with simultaneous activation in all 22 recorded episodes.

Why the study?

Does a new automatic mode switching algorithm reliably detect and respond to paroxysmal atrial fibrillation in patients with sinus node disease and chronotropic incompetence?

Population

26 patients with sinus node disease, chronotropic incompetence, and recurrent paroxysmal atrial…

Design

Case_series

Follow-up

1 year

Authors

RRRenato Pietro RicciElectrophysiologyAPAndrea PuglisiUniversité Paris-SudPAPaolo AzzoliniNational School of Public Health

Discussion

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Implication

Case report supports algorithm evaluation in sinus node disease; leaves open broader validation before practice change.

Study Design

Type

Observational (n=26)

Structured PICO

Does a new automatic mode switching algorithm reliably detect and respond to paroxysmal atrial fibrillation in patients with sinus node disease and chronotropic incompetence?

P
Population
26 patients (mean age 73, 61.5% female) with sinus node disease, chronotropic incompetence, and recurrent paroxysmal atrial fibrillation followed for 1 year after pacemaker implantation.
E
Exposure
Medtronic Thera DR pacemaker featuring a new algorithm for automatic mode switching (AMS) from DDD-DDDR to DDIR based on running average of intrinsic atrial rate.
O
Outcome
Safety and efficacy of the new AMS algorithm (evaluated via clinical evaluation, 12-lead ECG, Holter monitoring, and exercise testing compared with pacemaker memory data).surrogate

The evaluated automatic mode switching algorithm is highly reliable, sensitive, and specific for managing paroxysmal atrial fibrillation in pacemaker patients.

Cite This Study

Ricci et al. (1996) conducted an observational in Sinus node disease, chronotropic incompetence, and recurrent paroxysmal atrial fibrillation (n=26). Medtronic Thera DR pacemaker with new automatic mode switching algorithm was evaluated on Safety and efficacy of automatic mode switching (AMS episodes and Holter recordings). The new automatic mode switching algorithm in the Medtronic Thera DR pacemaker reliably detected paroxysmal atrial fibrillation, with simultaneous activation in all 22 recorded episodes.

synapsesocial.com/papers/6a21cc42033871db2707c8d3https://doi.org/10.1111/j.1540-8159.1996.tb03213.x

Topics

Persistent AF managementAtrial fibrillationAF ablation outcomesAnticoagulation in AF
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Also Consider

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

  1. 1Initial Experience with Mode Switching in a Dual Sensor, Dual Chamher Pacemaker in Patients with Paroxysmal Atrial Tachyarrhythmias1994 · 40 citations
  2. 2A New Automode Switch Algorithm for Supraventricular Tachycardias1994 · 19 citations
  3. 3Undesirable Mode Switching with a Dual Chamher Rate Responsive Pacemaker1993 · 24 citations
  4. 4Atrial Arrhythmia Management with Sensor Controlled Atrial Refractory Period and Automatic Mode Switching in Patients with Minute Ventilation Sensing Dual Chamber Rate Adaptive Pacemakers1992 · 41 citations
  5. 5The Natural History of Sick Sinus Syndrome1986 · 288 citations