What is supine hypotensive syndrome?

What is supine hypotensive syndrome?

Supine hypotensive syndrome (also referred to as inferior vena cava compression syndrome) is caused when the gravid uterus compresses the inferior vena cava when a pregnant woman is in a supine position, leading to decreased venous return centrally.

When does supine hypotensive syndrome occur?

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.

Is supine hypotensive syndrome common?

However, up to 15% of women at term can demonstrate supine hypotensive syndrome of pregnancy, defined as a decrease in systolic blood pressure of at least 15–30 mmHg.

How do you prevent supine hypotensive syndrome?

Note the following: For patients beyond the 20th to 24th week of gestation, the patient should be tilted 15° to the left by placing rolled towels beneath the spinal board. This is completed to prevent supine hypotension syndrome, which occurs when the gravid uterus compresses the inferior vena cava.

How is supine hypertension treated?

Which medications are used in the treatment of supine hypertension in patients with multiple system atrophy (MSA)?

1. Nitrates, transdermal nitroglycerin (0.1–0.2 mg/h)
2. Hydralazine (50 mg)
3. Nifedipine; short-acting calcium blocker (10-30 mg)
4. Clonidine (0.1 mg), early in the evening.

What causes supine hypertension?

In many autonomic failure patients, supine hypertension is driven by residual sympathetic tone acting on hypersensitive receptors and unrestrained by the impairment of baroreflex buffering.

What does supine mean in medical terms?

Medical Definition of supine 1 : lying on the back or with the face upward. 2 : marked by supination.

What is supine blood pressure?

The blood pressure measured automatically during a 10-minute supine rest is lower than sitting blood pressure. We suggest supine blood pressure ≥ 130/80 mm Hg as a specific and sensitive threshold for diagnosis of hypertension.

Why does Midodrine cause supine hypertension?

Midodrine is a prodrug which, when converted to its active form, is an alpha-1 adrenergic receptor agonist. It causes arterial and venous constriction, thereby helping to increase BP and likely venous return by decreasing venous compliance.

Whats the definition of supine?

Definition of supine (Entry 1 of 2) 1a : lying on the back or with the face upward. b : marked by supination. 2 : exhibiting indolent or apathetic inertia or passivity especially : mentally or morally slack. 3 archaic : leaning or sloping backward.

What are the signs and symptoms of supine hypotension?

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.

What diseases can cause postural hypotension?

Falls. Falling down as a result of fainting is a common complication in people with orthostatic hypotension.

Stroke. The swings in blood pressure when you stand and sit as a result of orthostatic hypotension can be a risk factor for stroke due to the reduced blood supply

Cardiovascular diseases.

How does supine position affect health?

Obstructive sleep apnea. According to a 2014 study,more than half of all people with obstructive sleep apnea (OSA) are classified as supine-related OSA.

Pregnancy.

Gastroesophageal reflux disease (GERD) GERD affects up to 20 percent of the American population.

What does it mean to have postural hypotension?

What is postural hypotension? Postural hypotension (also called orthostatic hypotension) is a condition in which a person’s blood pressure drops abnormally when they stand up after sitting or lying down. Not all people who have this condition have symptoms, but it can lead to dizziness, light-headedness and fainting, and possible falls.