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An Open Label Trial to Decrease Signs and Symptoms of Orthostatic Hypotension Using Midodrine or Intravenous Fluid Bolus in Patients Following Total Hip Arthroplasty

NCT02154243 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 13

Last updated 2017-07-31

Study results available
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Summary

Orthostatic hypotension following total hip arthroplasty is known to limit the ability of patients to perform physical therapy (PT) and increase the length of hospital stay and costs. Our goal is to prospectively study the effects of oral midodrine on the signs and symptoms of orthostatic hypotension in 20 patients and the effects of intravenous fluid on the signs of symptoms of orthostatic hypotension in 10 patients. Midodrine will be administered to patients with suspected low SVV, and an intravenous fluid bolus will be administered to patients with low CO. 120 patients will be consented with a view to studying 30 patients who meet the inclusion criteria for orthostatic hypotension. Patients who receive midodrine or the fluid bolus will undergo hemodynamic measurements at 30 min, 1 hr, 2 hrs, 3 hrs, and 4 hrs post-intervention. All patients will undergo measurements for blood pressure, arterial augmentation index, and heart rate at baseline (pre-op; holding area) and the time of first PT attempt. Patients will be monitored up to post-operative day 3. The working hypothesis is that midodrine or fluid therapy will significantly raise the mean arterial blood pressure (MAP) by 5 mmHg+ and/or cause a significant change in the Orthostatic Hypotension Questionnaire (characterized by a two-point improvement in symptom score).

Conditions

  • Orthostatic Hypotension

Interventions

DRUG

Midodrine

10 mg, p.o., once, on day of surgery after first physical therapy session

OTHER

Intravenous fluid bolus

15 cc/kg, once, on day of surgery after first physical therapy session

Sponsors & Collaborators

  • Hospital for Special Surgery, New York

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-06-30
Primary Completion
2015-01-31
Completion
2015-01-31

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02154243 on ClinicalTrials.gov