Methods and systems for mitigating the occurrence of arrhythmia during atrial pacing

US8452405B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Eric K. Enrooth · Lino Lakes, US
• Yanting Dong · Windom, US
• Kenneth N. Hayes · Blaine, US
• Gary T. Seim · Minneapolis, US
• Kevin J. Stalsberg · White Bear Lake, US
• Aaron R. McCabe · Edina, US

Key dates

• Filing date: May 3, 2010
• Grant date: May 28, 2013
• Expiry date: Dec 29, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3714
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Noncaptured atrial paces can result in long-short cardiac cycles which are proarrhythmic for ventricular tachyarrhythmia. Approaches are described which are directed to avoiding proarrhythmic long-short cycles. For cardiac cycles in which the atrial pace captures the atrium, a first post ventricular refractory period (PVARP) and a first A-A interval are used. For cardiac cycles in which the atrial pace does not capture the atrium, both an extended PVARP and an extended A-A interval are used. The A-A interval following a noncaptured atrial pace is extended from an atrial depolarization sensed during the extended PVARP.