2002
DOI: 10.1067/mob.2002.127304
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Hemodynamic changes and baroreflex gain in the supine hypotensive syndrome

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Cited by 53 publications
(35 citation statements)
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“…In supine position, the cardiac output tends to be lower than in lateral position, probably due to pressure of the gravid uterus upon the inferior vena cava, thus impeding venous return. In a small proportion of women, the latter is accompanied by a fall in blood pressure [24]. The more or less abrupt fall in systemic vascular tone in the sixth week of pregnancy is accompanied by an approximately 10 and 5 mmHg fall in diastolic and systolic blood pressure, respectively ( Fig.…”
Section: Hemodynamic Changes Of Normal Pregnancymentioning
confidence: 98%
“…In supine position, the cardiac output tends to be lower than in lateral position, probably due to pressure of the gravid uterus upon the inferior vena cava, thus impeding venous return. In a small proportion of women, the latter is accompanied by a fall in blood pressure [24]. The more or less abrupt fall in systemic vascular tone in the sixth week of pregnancy is accompanied by an approximately 10 and 5 mmHg fall in diastolic and systolic blood pressure, respectively ( Fig.…”
Section: Hemodynamic Changes Of Normal Pregnancymentioning
confidence: 98%
“…This syndrome is characterized by severe supine hypotension resulting from inferior vena cava compression by the gravid uterus and affects up to 8% of pregnant women in the second and third trimesters (1). …”
Section: Discussionmentioning
confidence: 99%
“…According to Lanni et al., there are no early predictors of this syndrome (1). However, a recent maternal history of supine position intolerance is likely to be an important indicator of risk of supine hypotensive syndrome, although this information may not always be obtained through direct inquiry also because patients sometimes fail to report their symptoms completely or accurately.…”
Section: Discussionmentioning
confidence: 99%
“…28,29 Uterine enlargement beyond 20 weeks of gestational age can compress the inferior vena cava, markedly reducing cardiac preload and causing the so-called "supine hypotensive syndrome" in approximately 8% of all pregnancies. 30,31 This syndrome is characterized by the symptoms and signs of reduced cardiac output, mean arterial pressure decrease of Ͼ 15 mm Hg, and sympathetic activation, within 3 to 10 min of lying supine, and can harm the mother and the fetus. A sedated patient may not be able to respond to early warning signs appropriately.…”
Section: Other Changes In Pregnancy Relevant To Bronchoscopymentioning
confidence: 99%