The dynamics of fetal cardiac activity

Persianinov, L. S.; Ilyin, I.V.; Karpman, V. L.; Savelieva, G.

doi:10.1016/0002-9378(66)90658-2

Cited by 14 publications

(7 citation statements)

References 11 publications

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“…The first, however, to indicate the clinical significance of these intervals between electro-and phonocardiographically recorded phenomena of the fetal heart action, were Kelly (1965), Persianinov et al (1966 and Peeters (1968). Goodlin et al (1972) succeeded in recording the PEP of a fetus in utero for the first time.…”

Section: Historymentioning

confidence: 99%

Cardiac Pre-Ejection Period during Prenatal Life

Evers¹

1980

Gynecol Obstet Invest

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Perinatal clinicians are confronted with the problem that they are supposed to gather information about the condition of the unborn child almost exclusively by monitoring the rate of the fetal heart. Human heart rate recording, however, is no more or less informative in utero than in the newborn nursery. Determination of the pre-ejection period (PEP) of the fetal heart might provide information regarding the performance of the heart of the human fetus in utero and about its cardiovascular adjustments during fetal distress. On the verge of introduction of clinical human fetal PEP monitoring, this article presents a review of the results obtained from chronically instrumented fetal animals as well as some preliminary data from human perinatal research. Finally, possible future developments in human fetal PEP recording are anticipated and it is concluded that the most promising feature of the PEP for clinical use appears to be its predictive value as an early antepartum indicator of possible fetal distress during subsequent labor.

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Section: Historymentioning

confidence: 99%

Cardiac Pre-Ejection Period during Prenatal Life

Evers¹

1980

Gynecol Obstet Invest

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“…The consistent and significant (p <0.001) prolongation of mech anical systole at birth has been described previously [7]. It appears likely that this may be due to the sudden and persistent increase in resistance to blood flow produced by the change from circulation in parallel to circulation in series.…”

Section: Discussionmentioning

confidence: 56%

“…Since they changed significantly with variation in the beat to beat interval preceding the propositus [7,16], regression equations were developed to relate them and the intervals between the peak of the R and the 1st and 2nd major components of the 1st sound of the new born (see above) separately to the instantaneous pulse rate and to the beat to beat interval. There was no significant difference in the adequacy of fit between the relationship of the 4 S,S2 intervals to pulse rate and to beat interval except in constants.…”

Section: Analysis Of Interval Duration Measurementsmentioning

confidence: 99%

Characteristics of Fetal Heart Sounds and Murmurs in the Second Half of Gestation

Urbach¹,

Carrington²,

Friel³

et al. 1968

Neonatology

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“…The onset of aortic valve opening has been demonstrated by two noninvasive methods, phonocardiogram and Doppler cardiogram. Detection of mitral valve and aortic valve closure by using phonocardiogram was attempted in an earlier stage of the investigation for fetal STIs [4]. However, this method has not been applied in clinical practice because of the difficulty in collecting fetal heart sound clearly through the maternal abdomen.…”

Section: Recording Techniquementioning

confidence: 99%

“…The first attempt to measure the PEP was 1966 by Persianinov et al, who reported fetal cardiac intervals measured from simultaneous recordings of fetal ECG and phonocardiogram, both of which were obtained through the maternal abdomen [4]. Moreover, Murata et al and Organ et al reported in the 1970s that PEP could be detected more accurately by measuring the interval between the onset of the QRS wave in fetal ECG, which can be detected by using a scalp electrode, and the opening of the aortic valve in Doppler cardiogram [5,6].…”

Section: Introductionmentioning

confidence: 99%

Fetal evaluation with ultrasonic Doppler cardiac isovolumetric contraction time

Satoh

Yumoto

2006

The Ultrasound Review of Obstetrics & Gynecology

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The measurement of isovolumetric contraction time (ICT) has been established as a method to evaluate cardiac function. In the fetus, the ICT is calculated from each valve signal obtained by Doppler cardiogram, noninvasively. Recently, the suitable digital-filter setting dividing fetal Doppler cardiac signal enabled us to detect fetal ICT more accurately. In fetal lamb study with this digital band-pass filter, it has been reported that as fetal acidosis developed, a drastic prolongation of the ICT occurred. A prolongation of ICT in potentially compromised fetuses predicted adverse fetal outcome, probably because acidemia following chronic hypoxemia could affect myocardial contractility in human fetuses. Fetal ICT obtained by Doppler cardiac signal is regarded as a simplified and useful index for clinical use in the assessment of fetal cardiac function.

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The dynamics of fetal cardiac activity

Cited by 14 publications

References 11 publications

Cardiac Pre-Ejection Period during Prenatal Life

Cardiac Pre-Ejection Period during Prenatal Life

Characteristics of Fetal Heart Sounds and Murmurs in the Second Half of Gestation

Fetal evaluation with ultrasonic Doppler cardiac isovolumetric contraction time

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