Micturition syncope

Micturition syncope is a syncope or fainting episode that occurs during or immediately after urination. It is a type of situational syncope. Micturition syncope is most commonly seen in older men and usually occurs at night after a deep sleep. The underlying cause is not fully understood but it may be related to vasovagal response, dehydration, hypertension, or prostatic hyperplasia.

Signs and Symptoms

Micturition syncope is characterized by fainting during or immediately after urination. Other symptoms may include dizziness, nausea, sweating, and blurred vision. The person may also experience a rapid, weak pulse and may feel lightheaded upon standing.

Causes

The exact cause of micturition syncope is not known. However, it is believed to be related to a drop in blood pressure that occurs when standing up or straining to urinate. This can cause a decrease in blood flow to the brain, leading to fainting. Other factors that may contribute to micturition syncope include dehydration, hypertension, prostatic hyperplasia, and certain medications.

Diagnosis

Micturition syncope is typically diagnosed based on the patient's medical history and a physical examination. The doctor may also order tests such as a urinalysis, blood tests, electrocardiogram, and tilt table test to rule out other conditions.

Treatment

Treatment for micturition syncope is usually aimed at managing the underlying cause. This may include adjusting medications, treating dehydration, or managing hypertension. In some cases, the doctor may recommend lifestyle changes such as avoiding standing for long periods, increasing fluid intake, and avoiding alcohol.

See Also

• Syncope
• Vasovagal response
• Orthostatic hypotension

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