Show simple item record

dc.contributor.authorMacefield, Vaughan G.
dc.date.accessioned2021-03-29T05:49:10Z
dc.date.available2021-03-29T05:49:10Z
dc.date.issued2017-07-03
dc.identifier.other204-2017.49
dc.identifier.urihttps://repository.mbru.ac.ae/handle/1/223
dc.description.abstractObjective and methods: Muscle sympathetic nerve activity and baroreflex sensitivity were examined at rest before, during (weeks 6, 11, 17, 22, 25, 33 and 36) and after a normotensive pregnancy. Results: Muscle sympathetic nerve activity is elevated during pregnancy with a large peak in the first trimester (D17 bursts/min) and a secondary peak in the third trimester (D11 bursts/min). Cardiac baroreflex sensitivity peaked in the first trimester (10 vs. 6 ms/mmHg prepregnancy), whereas sympathetic baroreflex sensitivity was greater throughout. Interpretation: The increase in sympathetic outflow early in pregnancy cannot be explained by a reduction in baroreflex sensitivity, while the secondary increase in burst frequency in the third trimester may, in part, be explained by the elevated heart rate.en_US
dc.language.isoenen_US
dc.subjectPregnancyen_US
dc.subjectBlood pressureen_US
dc.subjectBaroreflexen_US
dc.subjectSensitivityen_US
dc.subjectMicroneurographyen_US
dc.titleMuscle sympathetic nerve activity peaks in the first trimester in healthy pregnancy: a longitudinal case studyen_US
dc.typeArticleen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record