Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
EFFECT OF LOWER STIMULATION RATE ON AV SY NCHRONICITY OF VDD PACEMAKERS
Autore:
SCHUCHERT A; SCHMIDT W; JAKOB M; JUNG W; KARMANN W; KREUZER J; STAEDT U; STERTMANN WA; TREESE N; MEINERTZ T;
Indirizzi:
UNIV HAMBURG,HOSP EPPENDORF,MED KLIN & POLIKLIN,ABT KARDIOL,MARTINISTR 52 D-20246 HAMBURG GERMANY STADT KLINIKEN KASSEL GMBH D-34125 KASSEL GERMANY KNAPPSCHAFTSKRANKENHAUS SULZBACH,MED KLIN D-66280 SULZBACH GERMANY UNIV BONN,ZENTRUM INNERE MED,MED EINRICHTUNGEN D-53105 BONN GERMANY KREISKRANKENHAUSES,INNERE ABT D-97318 KITZINGEN GERMANY CARDIOL ANGIOLOG ZENTRUM BETHANIEN D-60389 FRANKFURT GERMANY KLINIKUM STADT NURNBERG,MED KLIN D-68167 MANNHEIM GERMANY UNIV GIESSEN,HERZ & GEFASSCHIRURG KLIN D-35292 GIESSEN GERMANY MARIEN HOSP D-49074 OSNABRUCK GERMANY
Titolo Testata:
Deutsche Medizinische Wochenschrift
fascicolo: 43, volume: 122, anno: 1997,
pagine: 1303 - 1307
Fonte:
ISI
Lingua:
GER
Soggetto:
PACING SYSTEM; SINGLE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
A. Schuchert et al., "EFFECT OF LOWER STIMULATION RATE ON AV SY NCHRONICITY OF VDD PACEMAKERS", Deutsche Medizinische Wochenschrift, 122(43), 1997, pp. 1303-1307

Abstract

Background and objective: Implantation of a VDD pacemaker (ventricular pacing; dual sensing [atrial and ventricular]; dual response [triggered + inhibited]) together with a single VDD electrode catheter restores synchronous AV ventricular stimulation in patients with higher-grade AV block and intact sinus function. If higher-frequency stimulation occurs it may be a sign of pacemaker malfunction or of inadequate pacemaker programing. This study was undertaken to determine, at first follow-up examination, in how many patients with a VDD pacemaker VVI stimulation occurred more than 5% of the time; how such patients differed from those with 5% or fewer VVI stimulations; and whether a changed program reduced the proportion of VVI stimulations. Patients and methods: 67 consecutive patients were tested 1 to 3 months after implantationof the Unity VDD pacemaker (Sulzer Intermedics). The frequency of VVIstimulations was determined via a diagnostic pacemaker memory store. After intermediate analysis, programing was optimized and the patientsthen re-tested 12 months after the initial implantation. Results: At the first follow-up examination 54 patients had VVI stimulations of less than or equal to 5% (0.5 +/- 0.9%) and 13 had > 5% of the time (19.8 +/- 10.7%). The two groups differed significantly from one another in their lower intervention frequency less than or equal to 5% VVI stimulations: 47 +/- 6/min; > 5% VVI stimulations: 58 +/- 5/min). In particular, the pacemakers in patients with > 5% VVI stimulations had been significantly more often programed to values of > 50/min. As a result,the pacemakers of these patients were reprogramed to a lower frequency. A year after implantation there was no longer any difference in thelower intervention frequency, 44 +/- 4/min, between patients with initially > 5% VVI stimulations and those with initially less than or equal to 5% stimulations. At the same time, the proportion of VVI stimulations fell to 4 +/- 6%, with 67% of patients having AV synchronicity of > 95%. Interpretation: At first follow-up, patients with > 5% VVI stimulations differed from those with less than or equal to 5% stimulations with regard to an increased lower intervention frequency. In most of these patients the proportion of AV stimulations was increased to >95 % by reducing the lower intervention frequency to less than or equal to 50/min.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 04:53:51