Assessment of pressure-volume relations in univentricular hearts: Comparison of obtainment by real-time 3D echocardiography and mini pressure-wire with conductance technology.

ABSTRACT:

Objectives

The gold standard to obtain pressure-volume relations (PVR) of the heart, the conductance technology (PVRCond), is rarely used in children. PVR can also be obtained by 3D-echocardiography volume data combined with simultaneously measured pressure data by a mini pressure-wire (PVR3DE). We sought to investigate the feasibility of both methods in patients with univentricular hearts and to compare them, including hemodynamic changes.

Methods

We studied 19 patients (age 2-29 years). PVR3DE and PVRCond were assessed under baseline conditions and stimulation with dobutamine.

Results

Obtaining PVR3DE was successful in all patients. Obtaining PVRCond was possible in 15 patients during baseline (79%) and in 12 patients under dobutamine (63%). Both methods showed that

SUBMITTER: Linden K 

PROVIDER: S-EPMC7850469 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature