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MICTURITION AND THE HEART PERIOD CYCLE IN THE HUMAN FETUS
Author(s) -
Visser G. H. A.,
Goodman J. D. S.,
Levine D. H.,
Da Wes G. S.
Publication year - 1981
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1981.tb01306.x
Subject(s) - fetus , urination , gestation , medicine , fetal heart rate , gestation period , heart rate , cardiology , anesthesia , pregnancy , urinary system , biology , blood pressure , genetics
Summary Campbell et al (1973) suggested that from 32 weeks gestation there was a cyclic filling and emptying of the fetal bladder, with a mean cycle length of 110 minutes. In the present study it was found that emptying of the bladder was associated with cyclic changes in fetal heart rate variation. In 95 per cent of the observations voiding occurred within 30 minutes after a change from a low to a high fetal heart rate variation episode. The possible relation of this association to fetal behavioural states is discussed.