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Clinical experience with a new multiprogrammable dual chamber pacemaker.

We evaluated the clinical performance of anew dual chamber pacemaker, ELA Chorus[TM], in 35 patients. This device incorporates linear rate adaptive AV delay (AVDR), rate smoothing, fallback, impedance telemetry, pacemaker mediated tachycardia (PMT) recognition and reprogramming software, intracardia...

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Published in:Pacing & Clinical Electrophysiology Vol. 15; no. 11; pp. 1830 - 1836
Main Authors: Kutalek SP, Schuster MM, Hessen SE, Sheppard R, Maquilan M, Nydegger C
Format: Journal Article
Published: Wiley-Blackwell Nov1992
Online Access:View this record in EBSCOhost
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      dt: Nov1992
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      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        atl: Clinical experience with a new multiprogrammable dual chamber pacemaker.
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          Kutalek SP
          Schuster MM
          Hessen SE
          Sheppard R
          Maquilan M
          Nydegger C
      sug:
      ab: We evaluated the clinical performance of anew dual chamber pacemaker, ELA Chorus[TM], in 35 patients. This device incorporates linear rate adaptive AV delay (AVDR), rate smoothing, fallback, impedance telemetry, pacemaker mediated tachycardia (PMT) recognition and reprogramming software, intracardiac electrogram displays, autothreshold testing, diagnostic data, battery depletion curves, and laptop computer programming. Mean patient age was 68 years; 18 patients had AV block, six had sinus node dysfunction (one with AV block), nine had carotid sinus hypersensitivity (three with AV block), and two had vagally mediated syncope. At hospital discharge, programming was DDD with a mean low rate of 60 (50-70) beats/min, mean high rate of 126 (120-154) beats/min; AVDH was ON in 21 patients, rate smoothing ON in six patients, fallback ON in six patients, and PMT reprogramming algorithm ON in 27 patients. Pacemaker follow-up involved 500 clinic visits over 14.3 months (1-36). Three patients developed atrial fibrillation, reprogrammed to DDI mode (two patients) or fallback (one patient). Fallback was used 617 times. PMT occurred 427 times in six patients; the PMT algorithm reprogrammed AV delay and postventricular atrial refractory period (PVARP) automatically, a function unique to the Chorus[TM]. Intracardiac electrograms and autothreshold testing improved follow-up efficiency .This new dual chamber pacemaker enhances programming flexibility and improves diagnostic accuracy at follow-up.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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