BIOIMPEDANCE BASED CONTROL OF RATE LIMITS IN ARTIFICIAL CARDIAC PACING

摘要

The limits of pacing rate can be made dynamically changeable in implantable cardiac pacemakers through the keeping of myocardium's energy consumption and supply in balance automatically. The energy balance of the myocardium can be estimated indirectly by the aid of measurement of the intracardiac bioimpedance. All the information needed for adaptive control of the pacing rate limits (both, higher and lower limits), can be obtained from analysis of dynamic variations of the measured bioimpedance.