A pacemaker having a motion sensor delivers atrial-synchronized ventricular pacing by detecting events from a signal produced by the motion sensor and delivering ventricular pacing pulses at a rate that tracks the rate of the detected events. The pacemaker is configured to confirm atrial tracking of...
A method and apparatus for preventing atrial fibrillation arising from a premature atrial contraction. Upon detection of a premature atrial contraction, a pace is delivered to a ventricle at a specified AV interval selected as either a late-pace or early-pace value. The resulting ventricular depolar...
During the first level of right ventricular pacing mean cardiac index was 1.87 L./min./M. 2, 21.8 per cent lower than during coronary sinus pacing (p < 0.005) and 21.4 per cent lower than right atrial pacing (p < 0.005). For the second level of right ventricular pacing, the mean ...
: Simultaneous Atrial and Ventricular Pacing to Facilitate Mapping of Concealed Left-Sided Accessory Pathways. Several local electrogram characteristics have been proposed as criteria to predict successful ablation. However, poor specificity due to obscuration of the retrograde atrial electrogram by the ...
However, RR intervals shorter than the right ventricular pacing intervals were also eliminated. It is difficult to explain the elimination of RR intervals shorter than the pacing intervals with the accepted concepts concerning the mechanisms governing the rate and rhythm of the ventricular response to ...
1. 心房同步心室抑制型起搏 ... atrial pacing test [医]心房调搏试验 atrial synchronous ventricular inhibited pacing [医]心房同步心室抑制型起搏 ... www.fastdict.net|基于1 个网页 例句 释义: 全部,心房同步心室抑制型起搏 更多例句筛选 1. Atrial synchronous ventricular inhibited pacing, VDD 心房同步心...
A feature named "atrial tracking recovery" (ATR) provides for restoring delivery of cardiac pacing therapy upon identification of an atrial refractory sense-ventricular sense (AR-VS) pattern of cardiac activity. In one embodiment, such patterns are monitored to determine if they are terminable. Onc...
摘要: We have used pulsed Doppler to ascertain effective atrial contribution to ventricular filling in sequential pacemaker rhythm. The technique is particularly valuable when electrocardiographic evidence of atrial capture is uncertain.关键词:sequential pacing pulsed Doppler atrial contraction P wave ...
5) Right ventricular apical pacing 右室心尖部起搏 1. Objective To find a forecasting index of left cardiac structure and function in patients with right ventricular apical pacing. 目的探讨右室心尖部起搏QRS波时限在左室结构及功能评价中的价值。
A method or system for computing and/or setting optimal cardiac resynchronization pacing parameters is presented. Among the parameters which may be optimized in this manner are an atrio-ventricular delay interval, an inter-atrial interval and a biventricular offset interval.Também publicado como US...