Spinal Cord Research Help
AboutCategoriesLatest ResearchContact
Subscribe
Spinal Cord Research Help

Making Spinal Cord Injury (SCI) Research Accessible to Everyone. Simplified summaries of the latest research, designed for patients, caregivers and anybody who's interested.

Quick Links

  • Home
  • About
  • Categories
  • Latest Research
  • Disclaimer

Contact

  • Contact Us
© 2025 Spinal Cord Research Help

All rights reserved.

  1. Home
  2. Research
  3. Spinal Cord Injury
  4. Double-Blinded, Placebo-Controlled Cross-Over Trial to Determine the Effects of Midodrine on Blood Pressure during Cognitive Testing in Persons with SCI

Double-Blinded, Placebo-Controlled Cross-Over Trial to Determine the Effects of Midodrine on Blood Pressure during Cognitive Testing in Persons with SCI

Spinal Cord, 2020 · DOI: 10.1038/s41393-020-0448-0 · Published: September 1, 2020

Spinal Cord InjuryCardiovascular ScienceNeurology

Simple Explanation

This study investigates whether midodrine, a medication, can help increase blood pressure in people with spinal cord injuries (SCI) who experience low blood pressure, especially during cognitive tasks. The researchers also wanted to see if midodrine could improve blood flow to the brain and overall cognitive function in these individuals. The study found that while midodrine did increase blood pressure on average, the effect varied greatly among participants, and it didn't consistently normalize blood pressure or improve cognitive function.

Study Duration
2-day study
Participants
41 healthy hypotensive individuals with chronic (≥ 1-year post-injury) SCI
Evidence Level
Level 1: Double-Blinded, Placebo-Controlled Cross-Over Trial

Key Findings

  • 1
    Midodrine increased SBP (4±13 vs. 18±24 mmHg, respectively; p<0.05) compared to placebo; however, responses varied widely with midodrine (−15.7 to +68.6 mmHg).
  • 2
    The proportion of SBP recordings within the normotensive range did not improve during cognitive testing with midodrine compared to placebo.
  • 3
    Although higher SBP was associated with higher CBFv (p=0.02), global cognitive function was not improved with midodrine.

Research Summary

The study aimed to determine the effectiveness of midodrine in increasing and maintaining systolic blood pressure within a normotensive range in hypotensive individuals with SCI during cognitive testing. Midodrine did increase blood pressure, but the response varied greatly among participants, with only a small percentage achieving systolic blood pressures within the normal range. Blood pressure stability was not improved with midodrine compared to placebo, and global cognitive function did not improve significantly, although higher blood pressures were associated with higher cerebral blood flow velocities.

Practical Implications

Personalized Treatment

Given the heterogeneity of response to midodrine, careful monitoring of patients following administration is crucial, and dosage adjustments may be necessary.

Further Research

Future studies should explore higher or more frequent lower doses of midodrine, and investigate the effects on supine blood pressure and during autonomic dysreflexia.

Comprehensive Management

Clinical management of hypotension in SCI should prioritize stabilizing as well as normalizing blood pressure, and consider alternative or combinatorial therapies.

Study Limitations

  • 1
    Single 10 mg dose of midodrine tested.
  • 2
    Brief observation period.
  • 3
    Homogeneous cohort of participants.

Your Feedback

Was this summary helpful?

Back to Spinal Cord Injury