Supine hypotensive Syndrome Definition, Symptoms, Prevention, Treatment

Supine hypotensive syndrome occur in pregnant women with the 2nd half duration of pregnancy. The mother when try to lie down on her back at the supine position she feels drop in blood pressure and dizziness. This dizziness occurs due to the compression of inferior vena cava which ultimately reduce the blood approach to the heart and less cardiac output. The inferior vena cava compresses by the weight of the infant and uterus, placenta and amniotic fluid collectively. The supine hypotensive syndrome causes the effects similar to the shock condition but their treatment regimen is different.

There are chances of supine hypotensive syndrome in the 2nd trimester but there are greater chances in the 3rd trimester of pregnancy. Due to the supine position, the inferior vena cava get compress and the cardiac output decreases up to 30% of the effective circulating blood concentration. This situation leads to the hypotension which develops in about 3 to 7 minutes. The compression of inferior vena cava and ultimately reduction in cardiac output leads to the contraction of uterine walls which may result in fetal distress in which hypoxia in fetus occur and if the condition become severe, fetal demise can occur.

Supine hypotensive Syndrome Definition, Symptoms, Prevention, Treatment

Supine hypotensive Syndrome Symptoms

The sign and symptoms associated with the supine hypotensive syndrome mimics the signs occur in shock condition. The main signs and symptoms experience by the pregnant women are:

  • Mother feels nausea while laying down and sometimes may vomit also. 
  • Hypotension occurs due to decreased blood pressure and sweating also occurs. 
  • While lying down, first the patient feel tachycardia but then after some time tachycardia is replaced by bradycardia. 
  • Pallor and dizziness may also occur due to decreased blood pressure. 
  • Edema may develop in the lower part of the body i.e. in limbs. 
  • Last but not least decreased femoral pulse is the sign.

Supine hypotensive syndrome Treatment

There is not any proper treatment of this syndrome. There is neither a surgical treatment nor medicine therapy to treat supine hypotensive syndrome. There are some modifications or treatment guidelines to avoid this condition. The patient should lie on the left lateral recumbent position or should lie in elevated right hip position. High flow oxygen mask should be used via non-rebreathe. If there are chances of spinal injury or trauma, the patient should ask to lie down on to the left side. Patient should keep warm and cozy.

Supine hypotensive syndrome Prevention

Signs and symptoms related to supine hypotensive syndrome are transient in nature and can be eliminated with some change in the positioning of lying down. The left lateral position is recommended for the patient as this position enables less compression of the inferior vena cava as compare to the supine position. After left lateral position, the left lateral tilt position is recommended. Left lateral tilt position is with about 15 to 30 degrees of angle which is achieved by placing a wedge under the right hip side. This position may also be used during delivery.
Supine hypotensive Syndrome Definition, Symptoms, Prevention, Treatment Supine hypotensive Syndrome Definition, Symptoms, Prevention, Treatment Reviewed by Simon Albert on July 19, 2017 Rating: 5
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