Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation

BackgroundNO bioavailability has not been systematically examined in congenital heart disease (CHD). To assess NO in patients with CHD, we measured nasal NO (nNO) generated by the nasal epithelia, given blood NO is difficult to measure (half‐life, <2 ms). Given NO's role in hemodynamic regul...

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Main Authors: Phillip S. Adams, Maliha Zahid, Omar Khalifa, Brian Feingold, Cecilia W. Lo
Format: Article
Language:English
Published: Wiley 2017-12-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.117.007447
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author Phillip S. Adams
Maliha Zahid
Omar Khalifa
Brian Feingold
Cecilia W. Lo
author_facet Phillip S. Adams
Maliha Zahid
Omar Khalifa
Brian Feingold
Cecilia W. Lo
author_sort Phillip S. Adams
collection DOAJ
description BackgroundNO bioavailability has not been systematically examined in congenital heart disease (CHD). To assess NO in patients with CHD, we measured nasal NO (nNO) generated by the nasal epithelia, given blood NO is difficult to measure (half‐life, <2 ms). Given NO's role in hemodynamic regulation and the association of NO bioavailability with heart failure risk, we hypothesized NO levels may differ with varying severity of CHD physiologic characteristics. Methods and ResultsSix‐hundred eighteen subjects, 483 with CHD and 135 controls, had nNO measured noninvasively via the nares using American Thoracic Society/European Respiratory Society guidelines. Subjects were dichotomized as having low or normal nNO based on age‐specific cutoff values. Prevalence of low nNO was examined by various CHD physiologic feature types. Low nNO was more prevalent with CHD than controls (odds ratio, 2.28; P=0.001). A logistic regression model showed overall significance (P=0.035) for single ventricle, systemic right ventricle, ventricular dysfunction, oxygen desaturation, and heterotaxy predicting low nNO, with systemic right ventricle independently having twice the odds of low nNO (odds ratio, 2.04; P=0.014). Patients with low nNO had a higher risk of experiencing heart transplant or death (hazard ratio, 2.75; P=0.048), and heart transplant recipients (N=16) exhibited 5 times the odds of low nNO (69% versus 30%; odds ratio, 5.1; P=0.001). ConclusionsPatients with CHD have increased prevalence of low nNO, with highest odds seen with systemic right ventricle and heart transplant. Further studies are needed to investigate heart failure risks in patients with CHD with left versus right systemic ventricle physiologic characteristics and utility of low nNO for predicting heart failure risk.
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spelling doaj.art-26e9b0cbd6954df689164c768dc4d7122022-12-22T02:39:29ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802017-12-0161210.1161/JAHA.117.007447Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac TransplantationPhillip S. Adams0Maliha Zahid1Omar Khalifa2Brian Feingold3Cecilia W. Lo4Division of Pediatric Anesthesiology, Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PADepartment of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PADepartment of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PADivision of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PADepartment of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PABackgroundNO bioavailability has not been systematically examined in congenital heart disease (CHD). To assess NO in patients with CHD, we measured nasal NO (nNO) generated by the nasal epithelia, given blood NO is difficult to measure (half‐life, <2 ms). Given NO's role in hemodynamic regulation and the association of NO bioavailability with heart failure risk, we hypothesized NO levels may differ with varying severity of CHD physiologic characteristics. Methods and ResultsSix‐hundred eighteen subjects, 483 with CHD and 135 controls, had nNO measured noninvasively via the nares using American Thoracic Society/European Respiratory Society guidelines. Subjects were dichotomized as having low or normal nNO based on age‐specific cutoff values. Prevalence of low nNO was examined by various CHD physiologic feature types. Low nNO was more prevalent with CHD than controls (odds ratio, 2.28; P=0.001). A logistic regression model showed overall significance (P=0.035) for single ventricle, systemic right ventricle, ventricular dysfunction, oxygen desaturation, and heterotaxy predicting low nNO, with systemic right ventricle independently having twice the odds of low nNO (odds ratio, 2.04; P=0.014). Patients with low nNO had a higher risk of experiencing heart transplant or death (hazard ratio, 2.75; P=0.048), and heart transplant recipients (N=16) exhibited 5 times the odds of low nNO (69% versus 30%; odds ratio, 5.1; P=0.001). ConclusionsPatients with CHD have increased prevalence of low nNO, with highest odds seen with systemic right ventricle and heart transplant. Further studies are needed to investigate heart failure risks in patients with CHD with left versus right systemic ventricle physiologic characteristics and utility of low nNO for predicting heart failure risk.https://www.ahajournals.org/doi/10.1161/JAHA.117.007447congenital heart diseasenasal NONOright ventriclesingle ventricletransplant
spellingShingle Phillip S. Adams
Maliha Zahid
Omar Khalifa
Brian Feingold
Cecilia W. Lo
Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
congenital heart disease
nasal NO
NO
right ventricle
single ventricle
transplant
title Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
title_full Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
title_fullStr Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
title_full_unstemmed Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
title_short Low Nasal NO in Congenital Heart Disease With Systemic Right Ventricle and Postcardiac Transplantation
title_sort low nasal no in congenital heart disease with systemic right ventricle and postcardiac transplantation
topic congenital heart disease
nasal NO
NO
right ventricle
single ventricle
transplant
url https://www.ahajournals.org/doi/10.1161/JAHA.117.007447
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