Table 1.

Clinical characteristics of NOH symptoms

1. NOH symptoms occur only during standing position and alleviate when the patient seats or lies down.

2. The recognition and description of NOH symptoms varies from patient to patient. OH can be asymptomatic in some patients.

3. Factors that may worsen NOH symptoms include getting up quickly in the morning, prolonged standing position, walking, activation of arm muscles during standing, eating carbohydrate-rich meals, a hot environment, immobility, Valsalva maneuver, and drugs with hypotensive effects.

4. In patients with NOH, it is important to ask about symptoms related to other autonomic domains like gastrointestinal, genitourinary, sudomotor, and pupillary function.

Abbreviations: NOH, neurogenic orthostatic hypotension; OH, orthostatic hypotension.