Study by Doppler Ultrasonography of the Effect of Smoking on the Fetal and Maternal Circulations
| Autor: | J. Gonzalez Merlo, A. Rodriguez Veret, P. J. Torres I Pons, L. Fite Exojo, C. Bru |
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| Rok vydání: | 1990 |
| Předmět: |
medicine.medical_specialty
Fetus business.industry Obstetrics Cerebral arteries Fetal circulation medicine.anatomical_structure Internal medicine Placenta medicine.artery Cardiology Vascular resistance Medicine Gestation Radiology Nuclear Medicine and imaging medicine.symptom Cardiology and Cardiovascular Medicine business Uterine artery Vasoconstriction |
| Zdroj: | Echocardiography. 7:593-596 |
| ISSN: | 1540-8175 0742-2822 |
| DOI: | 10.1111/j.1540-8175.1990.tb00407.x |
| Popis: | Forty healthy pregnant women with a normal pregnancy between 24 and 36 weeks of gestation and who were habitual smokers were studied. The changes produced by cigarette smoking on fetal-maternal circulation were observed using Doppler ultrasonography (Duplex scanning). Twenty minutes after smoking the resistance index in different vascular territories and the fetal and maternal heart rates were measured. Statistically significant increases in heart rates as well as in the resistance index of the umbilical and anterior cerebral arteries were obtained; these could be due to an increase in the vascular resistance of the placenta (umbilical arteries) or to a vasoconstriction in these vessels (umbilical and cerebral). No increase in the resistance index in the uterine artery suggesting vasoconstriction with decreased utero-placental flow was observed. |
| Databáze: | OpenAIRE |
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