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Bronchopulmonary Dysplasia Associated Pulmonary
Hypertension – A Survey of Current Practices in USA
and Canada
Amna Qasim*, Aman Jain and Sunil K Jain
University of Texas Medical Branch, USA
Introduction
The increased survival of premature infants has led to an
increased incidence of complications associated with prematurity.
Bronchopulmonary dysplasia (BPD) is the most common chronic
lung disease associated with prematurity that affects approximately
10,000-15,000 preterm infants [1] in USA alone with health costs
exceeding $2.4 billion in USA alone [2] Pulmonary hypertension
(PH) is one of the most significant complications of BPD due
to its high associated morbidity and mortality. PH complicates
approximately one-third infants with BPD cases [3-5] with high
mortality (40%) [6].
There are several risk factors associated with the development
of BPD_PH and multiple studies have been done in the past few
years to understand this common and significant complication of
prematurity. However, due to the scarcity of large-scale studies,
questions like when we should screen for BPD_PH, what the
appropriate screening tools are and how to optimally manage once
screening tests are positive remain unanswered.
The American Heart Association (AHA) and American Thoracic
Society (ATS) published the first set of guidelines for BPD-PH in
2015 (summarized in Table 1) [7]. Shortly after that, in 2017, the
Pediatric Pulmonary hypertension network published their own
guidelines [8]. The purpose of our study was to find out what the
current practices are in the management of BPD-PH in USA and
Canada in response to the AHA/ATS 2015 guidelines.
Table 1: Summary of AHA/ATS Guidelines for BPD_PH (2015) [7].
1. PH screening by echocardiogram is recommended in infants with
established BPD (Class I; Level of Evidence B); Timing of screening:
a) Depending on clinical condition of worsening respiratory distress or
risk factors of extreme prematurity (gestational age < 26 weeks);
b) Every infant at 36 weeks who is diagnosed with moderate or severe
BPDi.
2. Evaluation and treatment of lung disease, including assessments
for hypoxemia, aspiration, structural airway disease, and the need for
changes in respiratory support, are recommended in infants with BPD_
PH before initiation of PAHii-targeted therapy (Class I; Level of Evidence
B).
*Corresponding author: Amna Qasim, Department of Pediatrics, University of Texas
Medical Branch, USA.
Received Date: February 10, 2019
Published Date: February 15, 2019
Global Journal of
Pediatrics & Neonatal Care
Open Access
Research Article Copyright © All rights are reserved by Amna Qasim
This work is licensed under Creative Commons Attribution 4.0 License GJPNC.MS.ID.000504.
Abstract
Objective: To evaluate the implementation of the American Heart Association (AHA) and American Thoracic Society (ATS)
2015 guidelines in the diagnosis (including the utility of cardiac catheterization) and management of bronchopulmonary dysplasia
associated pulmonary hypertension (BPD-PH) in USA and Canada.
Methods: A validated 25-item questionnaire was sent to academic neonatal centers in USA and Canada to collect information on
diagnosis, screening protocols, availability of resources and management of BPD-PH.
Results: 133 responses were included (112 USA and 21 Canadian providers). There were no significant differences in the
resources and practices between USA and Canada. ECHO alone is most commonly used to screen infants for BPD-PH and cardiac
catheterization is rarely utilized. Treatment of BPD-PH includes use of oxygen to maintain saturations > 95%, Sildenafil, Nitric oxide
and combination of all above.
Conclusion: The AHA/ATS guidelines are being implemented partly. There is an urgent need for appropriate and practical
guidelines for the management of BPD-PH.