Status:

COMPLETED

InterventiOn of Biventricular Pacemaker Function on ventrIcular Function Among Patients With LVAD's

Lead Sponsor:

University of Colorado, Denver

Conditions:

Heart Diseases

Left Ventricular Dysfunction

Eligibility:

All Genders

18-80 years

Brief Summary

The primary reason the investigators are doing this study are to understand how the right side of the heart functions in heart failure patients with left ventricular assist devices (LVADs, or "mechani...

Detailed Description

Healthy individuals, as well as patients with advanced heart failure supported by LVADs, completed invasive hemodynamic analysis at rest and with exercise to characterize right-sided heart function at...

Eligibility Criteria

Inclusion

  • 15 patients with advanced heart failure (HF) who have already undergone implantation of a continuous-flow left ventricular assist device (CF-LVAD) implantation.
  • Inclusion criteria:
  • Have already received CF-LVADs and are clinically stable,
  • Ambulatory outpatients and are fully recovered (at least 3 months) from LVAD implantation;
  • Exclusion criteria:
  • Individuals with clinical right ventricular (RV) failure under resting conditions, defined as moderate-severely reduced RV systolic function on echocardiography, or
  • Clinical evidence of RV failure (elevated jugular venous pressures, 3 or 4+ \[significant\] peripheral edema);
  • Disorders that adversely influence exercise ability (e.g. arthritis, peripheral vascular disease, pulmonary disease); and
  • 10 healthy individuals will serve as a control group to define normal RV function during exercise.
  • Inclusion criteria:
  • 1\) Persons without a past medical history of cardiovascular disease or related disease such as:
  • hypertension,
  • diabetes,
  • peripheral vascular disease,
  • arrhythmias,
  • f. are not taking any cardiac-related medications (e.g. antihypertensive medications).
  • Exclusion criteria:
  • Individuals requiring systemic anticoagulation with vitamin-K antagonists or new/direct oral anticoagulants ("NOAC"/"DOAC");
  • Disorders that adversely influence exercise ability (e.g. arthritis, peripheral vascular disease).

Exclusion

    Key Trial Info

    Start Date :

    October 1 2017

    Trial Type :

    OBSERVATIONAL

    Allocation :

    ACTUAL

    End Date :

    January 30 2020

    Estimated Enrollment :

    22 Patients enrolled

    Trial Details

    Trial ID

    NCT03232736

    Start Date

    October 1 2017

    End Date

    January 30 2020

    Last Update

    November 14 2023

    Active Locations (1)

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    1

    University of Colorado Hospital

    Aurora, Colorado, United States, 80045