Journal article
Cardiac Function and Ventricular Interactions in Persistent Pulmonary Hypertension of the Newborn
Pediatric critical care medicine, Vol.22(2), pp.E145-E157
02/01/2021
DOI: 10.1097/PCC.0000000000002579
PMID: 33044416
Abstract
Objectives:
The aim of this study was to use a comprehensive imaging protocol to identify echocardiographic correlations of right and left ventricular size, function, and hemodynamics in neonates with persistent pulmonary hypertension of newborn and describe their relationship with key clinical variables.
Design:
Retrospective case-control echocardiography-based study of persistent pulmonary hypertension of newborn.
Setting:
A tertiary neonatal ICU in Canada.
Patients:
Forty-nine neonates (gestational age >= 35 wk old) diagnosed with persistent pulmonary hypertension of newborn within first 3 days after birth and 50 age-matched controls.
Interventions:
None.
Measurements and Main Results:
The echocardiographic measurements comprised of right ventricular and left ventricular functional markers, including tricuspid annular plane systolic excursion, fractional area change, tissue Doppler imaging, and deformation imaging. Sample size was based on detecting an intergroup difference of 10% in tricuspid annular plane systolic excursion, which was considered the primary outcome. Linear correlations between the right and left ventricular indices, as well as their association with the outcome of death or extracorporeal membrane oxygenation were evaluated. Persistent pulmonary hypertension of newborn was associated with lower tricuspid annular plane systolic excursion (6.81 +/- 1.92 vs 9.25 +/- 1.30 mm), right-ventricular global longitudinal strain (16.9% +/- 5.4% vs -21.6% +/- 4.6%); left ventricular ejection fraction (49% +/- 7% vs 55% +/- 6%), left ventricular global longitudinal strain (-16.7% +/- 3.3% vs -21.4% +/- 2.0%) (all p < 0.01). Right and left ventricular diastolic and global function was also lower in persistent pulmonary hypertension of newborn, with more pronounced changes seen for the right ventricle. Moderate-to-strong linear correlations were observed between the right and left ventricular functional markers, with right ventricular global longitudinal strain and left ventricular global longitudinal strain being the strongest (r = 0.8). Within persistent pulmonary hypertension of newborn group, hypoxic ischemic encephalopathy was associated with lower right and left ventricular systolic and right ventricular diastolic performance. Tricuspid annular plane systolic excursion (p =0.08) and left ventricular systolic velocity (p = 0.09) tended to be lower in patients who subsequently died/needed extracorporeal membrane oxygenation.
Conclusions:
Persistent pulmonary hypertension of newborn is characterized by global cardiac dysfunction, involving both the right and left ventricles, with significant interventricular functional correlation. Cardiac dysfunction early in disease course may identify patients at highest risk of adverse outcome.
Details
- Title: Subtitle
- Cardiac Function and Ventricular Interactions in Persistent Pulmonary Hypertension of the Newborn
- Creators
- Amish Jain - Mount Sinai HospitalAfif F. El-Khuffash - Royal College of Surgeons in IrelandClaar H. van Herpen - Mount Sinai HospitalMaura H. F. Resende - Mount Sinai HospitalRegan E. Giesinger - University of TorontoDany Weisz - University of TorontoLuc Mertens - University of TorontoRobert P. Jankov - University of TorontoPatrick J. McNamara - University of Toronto
- Resource Type
- Journal article
- Publication Details
- Pediatric critical care medicine, Vol.22(2), pp.E145-E157
- Publisher
- Lippincott Williams & Wilkins
- DOI
- 10.1097/PCC.0000000000002579
- PMID
- 33044416
- ISSN
- 1529-7535
- eISSN
- 1947-3893
- Number of pages
- 13
- Grant note
- Sick Kids Research Training Centre Clinician Scientist Training Program Doctoral Award
- Language
- English
- Date published
- 02/01/2021
- Academic Unit
- Stead Family Department of Pediatrics; Neonatology; Internal Medicine
- Record Identifier
- 9984354154202771
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