Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Hemodynamic effect of rapid atrial pacing in fetal lambs
Autore:
Shiraishi, H; Kikuchi, Y; Momoi, MY; Yanagisawa, M;
Indirizzi:
Jichi Med Sch, Dept Pediat, Minami Kawachi, Tochigi 32904, Japan Jichi MedSch Minami Kawachi Tochigi Japan 32904 hi, Tochigi 32904, Japan Univ Tokyo, Tokyo, Japan Univ Tokyo Tokyo JapanUniv Tokyo, Tokyo, Japan
Titolo Testata:
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY
fascicolo: 2, volume: 22, anno: 1999,
pagine: 320 - 325
SICI:
0147-8389(199902)22:2<320:HEORAP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPRAVENTRICULAR TACHYCARDIA; VENTRICULAR OUTPUT; HYDROPS-FETALIS; MANAGEMENT; DIAGNOSIS; DIGOXIN; SHEEP; TACHYARRHYTHMIAS; ECHOCARDIOGRAPHY;
Keywords:
fetal lamb; cardiac output; atrial pacing; hydrops fetalis; supraventricular tachyarrhythmia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Shiraishi, H Jichi Med Sch, Dept Pediat, Minami Kawachi, Tochigi 32904, Japan Jichi Med Sch Minami Kawachi Tochigi Japan 32904 2904, Japan
Citazione:
H. Shiraishi et al., "Hemodynamic effect of rapid atrial pacing in fetal lambs", PACE, 22(2), 1999, pp. 320-325

Abstract

To determine the threshold at which rapid atrial pacing brings on fetal circulatory failure, rte made a fetal supraventricular tachyarrhythmia model and measured the central venous pressure, aortic pressure, and right and left ventricular outputs in five fetal lambs. Under maternal anesthesia, the uterus rr as opened, and under local anesthesia, polyvinyl catheters were inserted into the fetal superior vena car a and ascending aorta through a neck incision. Pacing leads (Medtronic model 6492) were then sutured onto thefetal right atrial appendage via right thoracotomy. Ventricular output rr as estimated using a Toshiba SSH-65A echocardiography by a transuterine approach. Fetal hemodynamics rr-ere observed without pacing (control), and at the atrial pacing rates of 200, 300, 350, and 400/min. Central venous pressure (CVP) increased and the aortic pressure decreased when the right atriumwas paced at 350/min or more. Right ventricular output decreased rr hen the right atrium was paced at 300/min or more. The left ventricular output, however, remained constant. The right ventricular output rt as 382 +/- 106 mL/kg/min at control, and 391 +/- 117 mL/kg/min rt hen paced at 200/min, butdecreased to 210 +/- 138 mL/kg/min rt hen paced at 300/min, to 223 +/- 102mL/kg/min rr hen paced at 350/min, and to 186 +/- 86 mL/kg/min rt hen paced at 400/min. Fetal circulatory failure occurred when the right atrium rt as paced at 300/min or more.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 03:26:57