Management of Orthostatic Hypotension
Initial Management Approach
- For immediate management of orthostatic hypotension, place the patient in Trendelenburg position to increase systolic blood pressure to 100-110 mmHg 1
- Small boluses (5-10 mL/kg) of normal saline can be administered for orthostatic hypotension, especially in elderly patients 3
- Assess for signs of orthostatic hypotension before discharge from care, defined as a drop in blood pressure of ≥20 mmHg systolic or ≥10 mmHg diastolic within 3 minutes of standing 4, 5
Non-Pharmacological Interventions (First-Line)
- Increased fluid and salt intake is an effective first-line treatment for orthostatic hypotension 6
- Consider compression with knee-high or thigh-high compression stockings, though these may have poor adherence due to difficulty applying/removing and stigma concerns 6
Pharmacological Management (If Needed)
- If non-pharmacological measures are insufficient, midodrine is the only FDA-approved medication specifically for symptomatic orthostatic hypotension 7
- Initial midodrine dosing should begin with 10 mg three times daily, taken at 4-hour intervals during daytime hours when the patient needs to be upright 7
- Monitor for common side effects of midodrine, including piloerection (goosebumps) 7
Special Considerations for Elderly Patients
- Orthostatic hypotension is highly prevalent in older adults (6% in community-dwelling elderly to 33% in elderly hospital inpatients) 8
- Patients over 65 years are at higher risk for orthostatic hypotension, requiring careful titration of therapy 1
- Elderly patients with widely variable blood pressure deserve consideration for a slow titration approach to avoid excessive hypotension 4
Cautions and Monitoring
- Assess for orthostatic hypotension before and after intervention by measuring blood pressure after having the patient sit or lie for 5 minutes and then 1 and/or 3 minutes after standing 2
- The goal of therapy should be to minimize postural symptoms rather than to restore normotension 7
- Be cautious with fluid boluses in patients with cardiac disease, as myocardial depression may limit the amount of fluid the patient can tolerate 3
When to Consider Alternative Approaches
- For patients with persistent orthostatic hypotension despite initial management, consider additional agents like pyridostigmine, which facilitates cholinergic neurotransmission without worsening supine hypertension 6