PMID- 31099302 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2045-8932 (Print) IS - 2045-8940 (Electronic) IS - 2045-8932 (Linking) VI - 9 IP - 2 DP - 2019 Apr-Jun TI - Ventricular-ventricular interaction variables correlate with surrogate variables of clinical outcome in children with pulmonary hypertension. PG - 2045894019854074 LID - 10.1177/2045894019854074 [doi] LID - 2045894019854074 AB - Determination of biventricular dimensions, function, and ventricular-ventricular interactions (VVI) is an essential part of the echocardiographic examination in adults with pulmonary hypertension (PH); however, data from according pediatric studies are sparse. We hypothesized that left and right heart dimensions/function and VVI variables indicate disease severity and progression in children with PH. Left heart, right heart, and VVI variables (e.g. end-systolic LV eccentricity index [LVEI], right ventricular [RV]/left ventricular [LV] dimension ratio) were echocardiographically determined in 57 children with PH, and correlated with New York Heart Association (NYHA) functional class (FC), N-terminal-pro brain natriuretic peptide (NT-proBNP), and invasive hemodynamic variables (e.g. pulmonary vascular resistance index [PVRi]). Clinically sicker patients (higher NYHA FC) had lower LV ejection fraction (LVEF) and higher LVEI - a surrogate of LV compression. In PH children, the ratio of systolic pulmonary arterial pressure divided by systolic systemic arterial pressure (sPAP/sSAP) and the PVRi correlated well with the LVEI ( P < 0.001). Patients with more severe PH (sPAP/sSAP ratio, PVRi) had increased RV/LV and right-to-left atrial dimension ratios ( P < 0.01). When stratified using NYHA-FC, sicker PH children had greater RV and right atrial dimensions with lower exercise capacity, while the tricuspid annular plane systolic excursion as surrogate for longitudinal systolic RV function decreased. Consistent with previous studies, serum NT-proBNP correlated with both, sPAP/sSAP ratio ( P < 0.001) and NYHA FC ( P < 0.01). Taken together, the VVI variables LVEI and RV/LV dimension ratio are associated with lower FC, worse hemodynamics, and higher NT-proBNP levels, thus highlighting the importance of ventricular interdependence in pediatric PH. FAU - Koestenberger, Martin AU - Koestenberger M AUID- ORCID: 0000-0003-1766-7859 AD - 1 Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Austria. AD - 2 European Pediatric Pulmonary Vascular Disease Network, Berlin, Germany. FAU - Sallmon, Hannes AU - Sallmon H AD - 2 European Pediatric Pulmonary Vascular Disease Network, Berlin, Germany. AD - 3 Department of Pediatric Cardiology, Charite - Universitatsmedizin Berlin, Berlin, Germany. FAU - Avian, Alexander AU - Avian A AD - 4 Institute for Medical Informatics, Statistics and Documentation, Medical University Graz, Austria. FAU - Cantinotti, Massimiliano AU - Cantinotti M AD - 5 Fondazione CNR-Regione Toscana G. Monasterio, Massa and Pisa, Italy. FAU - Gamillscheg, Andreas AU - Gamillscheg A AD - 1 Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Austria. AD - 2 European Pediatric Pulmonary Vascular Disease Network, Berlin, Germany. FAU - Kurath-Koller, Stefan AU - Kurath-Koller S AD - 1 Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Austria. AD - 2 European Pediatric Pulmonary Vascular Disease Network, Berlin, Germany. FAU - Schweintzger, Sabrina AU - Schweintzger S AD - 1 Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Austria. FAU - Hansmann, Georg AU - Hansmann G AD - 2 European Pediatric Pulmonary Vascular Disease Network, Berlin, Germany. AD - 6 Department of Pediatric Cardiology and Critical Care, Hannover Medical School, Hannover, Germany. LA - eng PT - Journal Article PL - United States TA - Pulm Circ JT - Pulmonary circulation JID - 101557243 PMC - PMC6542130 OTO - NOTNLM OT - New York Health Association functional class OT - left ventricular eccentricity index OT - pediatric pulmonary hypertension OT - ventricular-ventricular interactions EDAT- 2019/05/18 06:00 MHDA- 2019/05/18 06:01 PMCR- 2019/05/29 CRDT- 2019/05/18 06:00 PHST- 2019/05/18 06:00 [pubmed] PHST- 2019/05/18 06:01 [medline] PHST- 2019/05/18 06:00 [entrez] PHST- 2019/05/29 00:00 [pmc-release] AID - 10.1177_2045894019854074 [pii] AID - 10.1177/2045894019854074 [doi] PST - ppublish SO - Pulm Circ. 2019 Apr-Jun;9(2):2045894019854074. doi: 10.1177/2045894019854074.