Neurocardiogenic syncope symptoms

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Lakshmi Gopalakrishnan, M.B.B.S. [2]

The classic features of neurocardiogenic syncope include the presence of triggering stimuli with subsequent prodrome of nausea and diaphoresis. Women and patients younger than forty tend to have more typical triggers, whereas older patients specifically may be triggered by cough, urination, and defacation.

• Family history of syncope is almost always present.

• The sight of blood.
• Loss of blood.
• Sudden stressful or painful experiences.
• Surgical manipulation.
• Trauma.
• Pain.
• Prolonged standing
• Heat
• Physical exertion
• Stress or anxiety
• Micturition
• Cough
• Deglutition

• Prior to the syncopal episode, patients may complain of a prodome consisting of:

• Nausea,
• Diaphoresis (absent in the elderly),
• Lightheadedness,
• Blurred vision,
• Headache,
• Palpitations,
• Paraesthesia,
• Pallor,

• The symptoms usually occur in the upright position and resolve almost immediately when the patient assumes the supine position. In the upright position there is downward displacement of 300-800 cc of blood.

• “Washed out” ,depressed and tired feeling.

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