Reflex syncope
Reflex Syncope
Reflex syncope (pronounced: /ˈriː.flɛks ˈsɪŋ.kə.pi/), also known as neurocardiogenic syncope, vasovagal syncope, or autonomic mediated syncope, is a subtype of syncope that is mediated by the autonomic nervous system. The term "reflex" refers to the reflexive response of the body to certain triggers, while "syncope" is derived from the Greek word "synkope", meaning "cutting off" or "interrupting".
Definition
Reflex syncope is a brief loss of consciousness due to a neurologically induced drop in blood pressure. It is the most common type of syncope and is typically triggered by emotional stress or physical factors such as standing for long periods or heat exposure.
Causes
The exact cause of reflex syncope is not fully understood, but it is believed to involve an inappropriate response by the autonomic nervous system to certain triggers. This can result in a sudden drop in blood pressure and/or heart rate, leading to reduced blood flow to the brain and temporary loss of consciousness.
Symptoms
Symptoms of reflex syncope can include lightheadedness, nausea, cold and clammy skin, blurred vision, and a rapid recovery after a brief loss of consciousness.
Diagnosis
Diagnosis of reflex syncope typically involves a detailed medical history and physical examination, as well as tests such as an electrocardiogram (ECG) to rule out other potential causes of syncope.
Treatment
Treatment for reflex syncope primarily involves managing the triggers and symptoms. This can include lifestyle changes such as staying hydrated, avoiding triggers, and learning techniques to counteract the onset of syncope.
See Also
External links
- Medical encyclopedia article on Reflex syncope
- Wikipedia's article - Reflex syncope
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