Myocardial Perfusion Echocardiography to Detect Human Heart Transplant
Overview
- Phase
- N/A
- Intervention
- Optison
- Conditions
- Heart Transplantation
- Sponsor
- Brigham and Women's Hospital
- Enrollment
- 10
- Locations
- 1
- Primary Endpoint
- Global and regional microvascular myocardial perfusion
- Status
- Terminated
- Last Updated
- 2 years ago
Overview
Brief Summary
The primary objective of this proposal is to show the efficacy of contrast enhanced ultrasonography in detecting heart transplant rejection in humans. The secondary objective is to demonstrate the efficacy of this technique in generating data which allow for the assessment of short and long term outcomes.
Investigators
Michael Givertz, MD
Medical Director, Heart Transplant and Mechanical Circulatory Support
Brigham and Women's Hospital
Eligibility Criteria
Inclusion Criteria
- •All adult subjects (ages 18 to 75) who have undergone heart transplant at Brigham and Women's Hospital
Exclusion Criteria
- •hemodynamic instability (e.g., systolic blood pressure \< 90 mmHg)
- •atrial fibrillation with rapid ventricular response (e.g., heart rate \> 120 bpm)
- •premature atrial or ventricular complexes of a frequency that will not allow adequate echocardiographic assessment
- •poor acoustic windows
- •inability to provide informed consent
- •any contraindication listed in the Optison package insert (i.e., history of an allergic reaction)
Arms & Interventions
Heart Transplant Rejection
Patients presenting with acute cellular rejection
Intervention: Optison
Heart Transplant Control
Patients presenting for routine office visit
Intervention: Optison
Outcomes
Primary Outcomes
Global and regional microvascular myocardial perfusion
Time Frame: Baseline
Myocardial blood flow (dB/s)