Biomaterial Database

Fetal heart rate and uterine contraction during automobile driving. 2004

Yukari Nakajima, and Kenji Yamaji, and Kazutomo Ohashi

Division of Child and Reproductive Health, Area of Nursing Science, Course of Health Science, Graduate School of Medicine, Osaka University, Osaka, Japan. nakajima@sahs.med.osaka-u.ac.jp

OBJECTIVE The purpose of this study was to clarify the influence of automobile driving in the third trimester of pregnancy on fetal heart rate and uterine contraction. METHODS Twenty-nine pregnant women with singleton pregnancies after 28 weeks of gestation were monitored using a portable cardiotocogram during driving, and the results obtained before and after driving were compared. RESULTS Baseline fetal heart rate and its variability, as well as periodic fetal heart rate patterns, showed no abnormal patterns during car driving. Automobile driving in late pregnancy was not a reinforcement factor for uterine activity. Maternal systolic and diastolic blood pressure and heart rate showed no specific characteristic or adverse change during driving. CONCLUSIONS The results of this study suggest that automobile driving in the third trimester of pregnancy has no adverse influences on either pregnant women or fetuses.

UI	MeSH Term	Description	Entries
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011263	Pregnancy Trimester, Third	The last third of a human PREGNANCY, from the beginning of the 29th through the 42nd completed week (197 to 294 days) of gestation.	Pregnancy, Third Trimester,Trimester, Third,Last Trimester,Last Trimesters,Pregnancies, Third Trimester,Pregnancy Trimesters, Third,Third Pregnancy Trimester,Third Pregnancy Trimesters,Third Trimester,Third Trimester Pregnancies,Third Trimester Pregnancy,Third Trimesters,Trimester, Last,Trimesters, Last,Trimesters, Third
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D005260	Female		Females
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006340	Heart Rate, Fetal	The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute.	Fetal Heart Rate,Fetal Heart Rates,Heart Rates, Fetal,Rate, Fetal Heart,Rates, Fetal Heart
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001334	Automobile Driving	The effect of environmental or physiological factors on the driver and driving ability. Included are driving fatigue, and the effect of drugs, disease, and physical disabilities on driving.	Automobile Drivings,Driving, Automobile,Drivings, Automobile
D014590	Uterine Contraction	Contraction of the UTERINE MUSCLE.	Myometrial Contraction,Contraction, Myometrial,Contraction, Uterine,Contractions, Myometrial,Contractions, Uterine,Myometrial Contractions,Uterine Contractions
D015148	Cardiotocography	Monitoring of FETAL HEART frequency before birth in order to assess impending prematurity in relation to the pattern or intensity of antepartum UTERINE CONTRACTION.	CTG, Antepartum,Cardiotocogram,Electronic Fetal Monitoring,External Cardiotocography,External Fetal Monitoring,Internal Cardiotocography,Internal Fetal Monitoring,Antepartum CTG,Cardiotocograms,Cardiotocography, External,Cardiotocography, Internal,Fetal Monitoring, Electronic,Fetal Monitoring, External,Fetal Monitoring, Internal,Monitoring, Electronic Fetal,Monitoring, External Fetal,Monitoring, Internal Fetal