Comparison of Differences in Minimized Ventricular Pacing Strategies and In Pacing Sites for Dual Chamber Pacemaker
LIU Wen-xiu
QI Shu-ying
SU Chang
LI Jie
RU Lei-sheng
DING Chao
Abstract：Objective To evaluate the different pacing sites and risk of atria high rate ( AHR ) episodes through two algorithms:managed ventricular pacing ( MVP ) and automatic atrioventricular interval search ( Search AV/ +) . Methods A total of 103 patients who were implanted with permanent dual chamber pacemakers in our hospital were included in the study. Patients were randomly divided into MVP group ( n=51 ) and Search AV/ +group (n=52). Search AV/ + algorithms were programmed off and MVP on in MVP group. By contrast, Search AV/ + algorithms were programmed on in Search AV/ + group after operation. Follow-up results of percentage of ventricular pacing(VP) and atrial pacing( AP) , as well as atrial high-ate (AHR) episodes at 3 months and 6 months after operation were recorded and analyzed. Results After operation, percentage of VP at 3 months and 6 months as well as AHR at 6 months in MVP Group were significantly lower than those in Search AV/ + group ( P<0.05 ) . Those indicators described above were remarkably lower in sick sinus syndrome ( SSS) patients in MVP group than in Search AV/ + group (P<0.05). Six months after operation, AHR in MVP group was significantly lower than that in intermittent atrioventricular block (AVB) patients in Search AV/ + group (P<0.05). At 3 and 6 months after operation, percentage of VP and AHR in MVP Group was significantly lower than that in Search AV/ + group in in-termittent AVB patients ( P<0.05 ) . Conclusion MVP algorithm is more likely to reduce VP percentage and AHR in patients with dual chamber pacemaker due to SSS or intermittent AVB, and has superior safety.
Keywords：PacemakerartificialSick sinus syndromeAtrioventricular block
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 87-90 )