Abstract
Supine hypotensive syndrome is characterized by severe supine symptoms and hypotension in late pregnancy, which compel the unconstrained subject to change position. Rarely, it may manifest even from the fifth month of pregnancy or postpartum, as well as in the pelvic tilt or sitting positions. Although inferior vena cava compression influenced primarily by the size of the uterus and exact maternal and fetal position, is the major determinant in its development, other factors may also be important in modulating the circulatory effects of such compression. As there seems to be a spectrum of severity from minimal central cardiovascular alterations to severe syncopal shock resulting from supine inferior vena cava compression, it is difficult to define a cut-off point at which the syndrome occurs. This syndrome is a major consideration in dental treatment of a pregnant patient.
Highlights
The effects of supine hypotensive syndrome are very similar to that of shock, but they are not treated in the same fashion
When the pregnant female in these stages lies in the supine position, the added weight of the enlarged uterus and its contents will press down on the interior vena cava
The inferior vena cava is the route by which de-oxygenated blood from the lower half of the body returns to the heart
Summary
Abstracts Supine hypotensive syndrome is characterized by severe supine symptoms and hypotension in late pregnancy, which compel the unconstrained subject to change position. As there seems to be a spectrum of severity from minimal central cardiovascular alterations to severe syncopal shock resulting from supine inferior vena cava compression, it is difficult to define a cut-off point at which the syndrome occurs This syndrome is a major consideration in dental treatment of a pregnant patient. Supine hypotensive syndrome can mimic symptoms of shock This is because when the blood flow from the inferior vena cava is constricted the blood pressure will drop and will contract the uterine arteries and redirect blood to the major organs. In case of spine injury, patient should be secured to a backboard which could be tilted by placing a towel or sheet under it which would raise the patient and angle-up the position revealing the pressure from the uterus This method is used in case of transferring of the pregnant women in cases of trauma to avoid shock[13]
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