Venous and arterial behavior during normal pregnancy
1 Department of Anesthesiology, A. Béclère Hospital, 92140 Clamart; and 2 Department of Internal Medicine (Medicine 1) and Institut National de la Santé et de la Recherche Médicale, U 337, Broussais Hospital, 75674 Paris Cedex 14, France To assess the contribution of the arterial and venous system...
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| Veröffentlicht in: | American journal of physiology. Heart and circulatory physiology 1998-05, Vol.274 (5), p.H1605-H1612 |
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| container_issue | 5 |
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| container_title | American journal of physiology. Heart and circulatory physiology |
| container_volume | 274 |
| creator | Edouard, D. A Pannier, B. M London, G. M Cuche, J. L Safar, M. E |
| description | 1 Department of Anesthesiology,
A. Béclère Hospital, 92140 Clamart; and
2 Department of Internal Medicine
(Medicine 1) and Institut National de la Santé et de la Recherche
Médicale, U 337, Broussais Hospital, 75674 Paris Cedex 14, France
To assess the contribution of the arterial and
venous systems in the hemodynamic changes of normal pregnancy, we
studied blood flow, vascular resistance, venous tone, and the
viscoelastic properties ("creep") of the upper and lower limbs
(using plethysmography), aortic distensibility (using pulse wave
velocity measurements), and cardiac dimensions (using echocardiography)
in nine healthy women. Studies were longitudinally performed at the
first (10-13 wk) and third (33-38 wk) trimesters of pregnancy
in comparison with the period between the third and sixth month after
delivery. From the first trimester, heart rate significantly increased
while systemic blood pressure and limb vascular resistances did not change significantly and aortic distensibility increased
( P < 0.05). Lower limb viscoelastic
properties decreased at the third trimester
( P |
| doi_str_mv | 10.1152/ajpheart.1998.274.5.h1605 |
| format | Article |
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A. Béclère Hospital, 92140 Clamart; and
2 Department of Internal Medicine
(Medicine 1) and Institut National de la Santé et de la Recherche
Médicale, U 337, Broussais Hospital, 75674 Paris Cedex 14, France
To assess the contribution of the arterial and
venous systems in the hemodynamic changes of normal pregnancy, we
studied blood flow, vascular resistance, venous tone, and the
viscoelastic properties ("creep") of the upper and lower limbs
(using plethysmography), aortic distensibility (using pulse wave
velocity measurements), and cardiac dimensions (using echocardiography)
in nine healthy women. Studies were longitudinally performed at the
first (10-13 wk) and third (33-38 wk) trimesters of pregnancy
in comparison with the period between the third and sixth month after
delivery. From the first trimester, heart rate significantly increased
while systemic blood pressure and limb vascular resistances did not change significantly and aortic distensibility increased
( P < 0.05). Lower limb viscoelastic
properties decreased at the third trimester
( P < 0.05) and venous tone increased
from the first trimester ( P < 0.01),
whereas little changes were observed at the site of upper limbs. The
decrease in calf venous tone was significantly correlated with the
increase in left ventricular diastolic diameter at the first
( P < 0.001) and the third trimester ( P < 0.05). The study provides
evidence that during normal pregnancy, changes in the arterial and
venous sides of the circulation occur independently of pressure
alterations. The increase in venous tone, contributing to preload
augmentation, and the decrease in aortic stiffness, reducing afterload,
both optimize cardiac function until delivery.
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A. Béclère Hospital, 92140 Clamart; and
2 Department of Internal Medicine
(Medicine 1) and Institut National de la Santé et de la Recherche
Médicale, U 337, Broussais Hospital, 75674 Paris Cedex 14, France
To assess the contribution of the arterial and
venous systems in the hemodynamic changes of normal pregnancy, we
studied blood flow, vascular resistance, venous tone, and the
viscoelastic properties ("creep") of the upper and lower limbs
(using plethysmography), aortic distensibility (using pulse wave
velocity measurements), and cardiac dimensions (using echocardiography)
in nine healthy women. Studies were longitudinally performed at the
first (10-13 wk) and third (33-38 wk) trimesters of pregnancy
in comparison with the period between the third and sixth month after
delivery. From the first trimester, heart rate significantly increased
while systemic blood pressure and limb vascular resistances did not change significantly and aortic distensibility increased
( P < 0.05). Lower limb viscoelastic
properties decreased at the third trimester
( P < 0.05) and venous tone increased
from the first trimester ( P < 0.01),
whereas little changes were observed at the site of upper limbs. The
decrease in calf venous tone was significantly correlated with the
increase in left ventricular diastolic diameter at the first
( P < 0.001) and the third trimester ( P < 0.05). The study provides
evidence that during normal pregnancy, changes in the arterial and
venous sides of the circulation occur independently of pressure
alterations. The increase in venous tone, contributing to preload
augmentation, and the decrease in aortic stiffness, reducing afterload,
both optimize cardiac function until delivery.
venous tone; aortic compliance; arterial distensibility; cardiac
function</description><subject>Adult</subject><subject>Arteries - physiology</subject><subject>Echocardiography</subject><subject>Estrogens - blood</subject><subject>Extremities - blood supply</subject><subject>Female</subject><subject>Heart - physiology</subject><subject>Hemodynamics - physiology</subject><subject>Humans</subject><subject>Pregnancy - physiology</subject><subject>Progesterone - blood</subject><subject>Veins - physiology</subject><issn>0363-6135</issn><issn>0002-9513</issn><issn>1522-1539</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kEtPwzAQhC0EKqXwE5DChVtSP2KnFidUUYqExKVwtezYeVR5YSdA_j2uWqpeOK20szM7-gC4QzBCiOK53HaFkbaPEOeLCCdxRKMCMUjPwNTrOESU8HMwhYSRkCFCL8GVc1sIIU0YmYAJZwiTBE5B_GGadnCBbHTgA40tZRUoU8ivsrWBHmzZ5EHT2tqvO2vyRjbpeA0uMlk5c3OYM_C-etos1-Hr2_PL8vE1TCmmfUiIyhRCfjC2iP0_HDPMpVYao4SYLOWxhjozCGsisxgnJlFKZzFThECMFJmB-31uZ9vPwbhe1KVLTVXJxvjSIuEc8gWh_pDvD1PbOmdNJjpb1tKOAkGxIyb-iIkdMeGJCSrWO2Lee3t4Mqja6KPzgMjrD3u9KPPiu7RGdMXoyrZq81GshqramJ_-mH-SLDqdeff8f_ex1GmfX3-5kHg</recordid><startdate>19980501</startdate><enddate>19980501</enddate><creator>Edouard, D. A</creator><creator>Pannier, B. M</creator><creator>London, G. M</creator><creator>Cuche, J. L</creator><creator>Safar, M. E</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19980501</creationdate><title>Venous and arterial behavior during normal pregnancy</title><author>Edouard, D. A ; Pannier, B. M ; London, G. M ; Cuche, J. L ; Safar, M. E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c525t-33bfb1133b668423724629adbd2173efc94d0dfe12d3af427e7bbdf46b33021b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Adult</topic><topic>Arteries - physiology</topic><topic>Echocardiography</topic><topic>Estrogens - blood</topic><topic>Extremities - blood supply</topic><topic>Female</topic><topic>Heart - physiology</topic><topic>Hemodynamics - physiology</topic><topic>Humans</topic><topic>Pregnancy - physiology</topic><topic>Progesterone - blood</topic><topic>Veins - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Edouard, D. A</creatorcontrib><creatorcontrib>Pannier, B. M</creatorcontrib><creatorcontrib>London, G. M</creatorcontrib><creatorcontrib>Cuche, J. L</creatorcontrib><creatorcontrib>Safar, M. E</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of physiology. Heart and circulatory physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Edouard, D. A</au><au>Pannier, B. M</au><au>London, G. M</au><au>Cuche, J. L</au><au>Safar, M. E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Venous and arterial behavior during normal pregnancy</atitle><jtitle>American journal of physiology. Heart and circulatory physiology</jtitle><addtitle>Am J Physiol</addtitle><date>1998-05-01</date><risdate>1998</risdate><volume>274</volume><issue>5</issue><spage>H1605</spage><epage>H1612</epage><pages>H1605-H1612</pages><issn>0363-6135</issn><issn>0002-9513</issn><eissn>1522-1539</eissn><abstract>1 Department of Anesthesiology,
A. Béclère Hospital, 92140 Clamart; and
2 Department of Internal Medicine
(Medicine 1) and Institut National de la Santé et de la Recherche
Médicale, U 337, Broussais Hospital, 75674 Paris Cedex 14, France
To assess the contribution of the arterial and
venous systems in the hemodynamic changes of normal pregnancy, we
studied blood flow, vascular resistance, venous tone, and the
viscoelastic properties ("creep") of the upper and lower limbs
(using plethysmography), aortic distensibility (using pulse wave
velocity measurements), and cardiac dimensions (using echocardiography)
in nine healthy women. Studies were longitudinally performed at the
first (10-13 wk) and third (33-38 wk) trimesters of pregnancy
in comparison with the period between the third and sixth month after
delivery. From the first trimester, heart rate significantly increased
while systemic blood pressure and limb vascular resistances did not change significantly and aortic distensibility increased
( P < 0.05). Lower limb viscoelastic
properties decreased at the third trimester
( P < 0.05) and venous tone increased
from the first trimester ( P < 0.01),
whereas little changes were observed at the site of upper limbs. The
decrease in calf venous tone was significantly correlated with the
increase in left ventricular diastolic diameter at the first
( P < 0.001) and the third trimester ( P < 0.05). The study provides
evidence that during normal pregnancy, changes in the arterial and
venous sides of the circulation occur independently of pressure
alterations. The increase in venous tone, contributing to preload
augmentation, and the decrease in aortic stiffness, reducing afterload,
both optimize cardiac function until delivery.
venous tone; aortic compliance; arterial distensibility; cardiac
function</abstract><cop>United States</cop><pmid>9612370</pmid><doi>10.1152/ajpheart.1998.274.5.h1605</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0363-6135 |
| ispartof | American journal of physiology. Heart and circulatory physiology, 1998-05, Vol.274 (5), p.H1605-H1612 |
| issn | 0363-6135 0002-9513 1522-1539 |
| language | eng |
| recordid | cdi_highwire_physiology_ajpheart_274_5_H1605 |
| source | MEDLINE; American Physiological Society Paid; EZB Electronic Journals Library |
| subjects | Adult Arteries - physiology Echocardiography Estrogens - blood Extremities - blood supply Female Heart - physiology Hemodynamics - physiology Humans Pregnancy - physiology Progesterone - blood Veins - physiology |
| title | Venous and arterial behavior during normal pregnancy |
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