The Influence of the Maternal Heart Rate on the Uterine Artery Pulsatility Index in the Pregnant Ewe

We investigated the influence of the maternal heart rate on the uterine artery pulsatility index in pregnant ewes. We used an external pacemaker to alter the heart rate of 5 pregnant ewes at 16–17 weeks of pregnancy and examined the effect of changes in the maternal heart rate on the uterine artery...

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Veröffentlicht in:	Gynecologic and obstetric investigation 1999-01, Vol.47 (2), p.73-75
Hauptverfasser:	Ochi, Hiroshi, Matsubara, Keiichi, Kusanagi, Yasuki, Furutani, Kouichi, Katayama, Tomihiro, Ito, Masaharu
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Arteries - physiology Biological and medical sciences Cardiac Pacing, Artificial Female Fundamental and applied biological sciences. Psychology Heart Rate - physiology Hemodynamics. Rheology Laser-Doppler Flowmetry Original Paper Pregnancy Pulsatile Flow Sheep Uterus - blood supply Vertebrates: cardiovascular system
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Zusammenfassung:	We investigated the influence of the maternal heart rate on the uterine artery pulsatility index in pregnant ewes. We used an external pacemaker to alter the heart rate of 5 pregnant ewes at 16–17 weeks of pregnancy and examined the effect of changes in the maternal heart rate on the uterine artery flow velocity waveforms and the pulsatility index, as determined by Doppler velocimetry. The uterine artery pulsatility index showed a significant negative correlation with the maternal heart rate. There were no significant changes in other hemodynamic parameters. The maternal heart rate had a significant influence on the uterine artery pulsatility index.
ISSN:	0378-7346 1423-002X
DOI:	10.1159/000010066