Stanford, California 94305

  • Pulmonary Hypertension

Purpose:

The purpose of the study is to determine whether patients with pulmonary hypertension (PH) have dysynchrony, and if so whether it is electrical or mechanical. Once this has been determined, during a catheterization the investigators will test if pacing the heart improves blood circulation.


Study summary:

This is a two part study of ventricular dysynchrony in patients with pulmonary hypertension. The first part is an observational study, reviewing routinely obtained clinical information (such as echocardiograms) to assess whether patients with pulmonary hypertension have electrical or mechanical dysynchrony. If so, we will proceed to the second part of the study which will assess whether temporarily pacing the right ventricle, during a clinically indicated catheterization can acutely improve hemodynamics. We will also gather control data for phase 1 from clinically indicated echos and ECG's in patients with ASD's (RV volume load) and in patients who are evaluated for an innocent murmur ( Nl heart). We hope to learn whether patients with pulmonary hypertension, and compromised right ventricles have electrical and mechanical dysnchrony. If this is true, it is theoretically possible that resynchronization (pacing) of the right ventricle could improve hemodynamics, symptoms and long term outcomes.


Criteria:

Inclusion Criteria: - Pulmonary artery mean pressure at rest of 25 mm Hg - Controls (for phase 2) Patients undergoing transcatheter closure of secundum ASD Patients undergoing echocardiogram and ECG as part of work-up for functional murmur who have normal intracardiac anatomy Exclusion Criteria: - Reversible cause of pulmonary hypertension - Age < 5 yrs (for phase 2)


NCT ID:

NCT01571700


Primary Contact:

Principal Investigator
Jeffrey Feinstein, MD, MPH
Stan

Jeffrey Feinstein, MD, MPH
Phone: 660-723-7913
Email: jeff.feinstein@stanford.edu


Backup Contact:

N/A


Location Contact:

Stanford, California 94305
United States

Jeffrey Feinstein, MD, MPH
Phone: 650-723-7913
Email: jeff.feinstein@stanford.edu

Site Status: Recruiting


Data Source: ClinicalTrials.gov

Date Processed: September 16, 2021

Modifications to this listing: Only selected fields are shown, please use the link below to view all information about this clinical trial.


Click to view Full Listing

If you would like to be contacted by the clinical trial representative please fill out the form below.