Aortocaval Compression in Pregnancy: The Effect of Changing ... - LWW
When women in late pregnancy lie flat on their backs, the gravid uterus completely occludes the inferior vena cava (1) and laterally displaces the subrenal aorta (2). This aortocaval compression reduces maternal cardiac output (3–6), an event that is often concealed, because only 10% of pregnant women will exhibit supine hypotension syndrome (7,8).
Aortocaval Compression Syndrome - StatPearls - NCBI Bookshelf
2023年8月7日 · It typically occurs in pregnant females, usually after 20 weeks of gestation, when the patient is in the supine position. Blood flow from the lower extremities back to the maternal heart and central circulation is impeded due to the uterus compressing the …
Aortocaval Compression Syndrome - PubMed
2023年8月7日 · Aortocaval compression syndrome is also known as a supine hypotensive syndrome. This pathophysiologic state occurs in a pregnant female, typically after 20 weeks gestation, when the patient is placed in the percent position.
Aortocaval compression syndrome - Wikipedia
Aortocaval compression syndrome, also known as supine hypotensive syndrome, is compression of the abdominal aorta and inferior vena cava by the gravid uterus when a pregnant woman lies on her back, i.e. in the supine position.
Aortocaval compression during early pregnancy: are there other …
The principal maneuver to alleviate aortocaval compression involves displacement of the gravid uterus from the abdominal great vessels using the lateral tilt position. Multiple studies have shown radiographic and physiologic improvement in aortocaval compression in the lateral compared to the supine position. 3,6,10 Although left lateral tilt ...
Haemodynamic effects from aortocaval compression at different …
Aortocaval compression (ACC) occurs when the gravid uterus compresses the maternal abdominal aorta and inferior vena cava (IVC). Compression of the IVC impedes venous return which decreases cardiac output (CO), and compression of the aorta may reduce uteroplacental perfusion which may result in fetal acidosis. 1–3 It is recommended that the ...
Aortocaval compression in pregnancy: the effect of changing …
Using thoracic bioimpedance to measure maternal cardiac output, we were unable to demonstrate any benefit from increasing the magnitude of lateral table tilt. This implies that it is unnecessary to use extremes of lateral table tilt in healthy pregnancy although …
[Aortocaval compression syndrome] - PubMed
Aortocaval compression syndrome (supine hypotensive syndrome) represents a common complication mainly of late pregnancy, although the syndrome has been described to occur as early as 16 weeks of gestation. The nature and severity of symptoms range from unspecific complaints to severe maternal hypote …
Aortocaval compression during early pregnancy: are there other …
Left lateral tilt to displace the gravid uterus from the aorta and inferior vena cava is standard care in pregnant women from around 20 weeks of gestation. Failure to prevent aortocaval compression often leads to refractory hypotension.
Effect of maternal positioning during cardiopulmonary …
Aortocaval compression in late pregnancy further reduces cardiac output to around 10% of the nonpregnant cardiac output [20, 21]. Clinical guidelines [22 – 27] recommend relief of aortocaval compression during maternal resuscitation. However, there is no consensus on the best strategy to relieve aortocaval compression during maternal resuscitation.