PMID- 28904266 OWN - NLM STAT- MEDLINE DCOM- 20190219 LR - 20190320 IS - 1347-4820 (Electronic) IS - 1346-9843 (Linking) VI - 82 IP - 2 DP - 2018 Jan 25 TI - Clinical Impact of Main Pulmonary Artery Dilatation on Outcome in Pediatric Idiopathic and Heritable Pulmonary Arterial Hypertension. PG - 541-545 LID - 10.1253/circj.CJ-17-0092 [doi] AB - BACKGROUND: Few studies have investigated the clinical impact of pulmonary artery (PA) dilatation on outcomes in pediatric pulmonary arterial hypertension (PAH).Methods and Results:This study investigated the clinical outcomes of idiopathic or heritable PAH in 66 children aged <18 years at diagnosis. Main PA/thorax (MPA/T) ratio was measured on chest radiography in PAH patients. Patients were divided into 2 groups based on MPA/T ratio, and compared with a control group of 166 age- and gender-matched healthy children. Group A had higher MPA/T ratio than normal, and group B had normal MPA/T ratio. Composite outcomes included cardiac death, lung transplantation, and hospitalization due to heart failure. Group A consisted of 27 patients and group B, 39 patients. At diagnosis, group A had significantly higher brain natriuretic peptide (BNP), cardiothoracic ratio, PA pressure, and pulmonary vascular resistance index compared with group B. The number of patients with New York Heart Association (NYHA) functional class III and IV was significantly higher in group A than in group B. Cumulative event-free survival rate was significantly lower in group A. CONCLUSIONS: MPA dilatation correlated with BNP, NYHA functional class, and hemodynamics with regard to disease severity, and may be a potential prognostic factor in pediatric idiopathic and heritable PAH. FAU - Ikehara, Satoshi AU - Ikehara S AD - Department of Pediatrics, Toho University Omori Medical Center. FAU - Takatsuki, Shinichi AU - Takatsuki S AD - Department of Pediatrics, Toho University Omori Medical Center. FAU - Nakayama, Tomotaka AU - Nakayama T AD - Department of Pediatrics, Toho University Omori Medical Center. FAU - Naoi, Kazuyuki AU - Naoi K AD - Department of Pediatrics, Toho University Omori Medical Center. FAU - Matsuura, Hiroyuki AU - Matsuura H AD - Department of Pediatrics, Toho University Omori Medical Center. FAU - Saji, Tsutomu AU - Saji T AD - Department of Pediatrics, Toho University Omori Medical Center. LA - eng PT - Journal Article PT - Observational Study DEP - 20170913 PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 SB - IM MH - Adolescent MH - Case-Control Studies MH - Child MH - Child, Preschool MH - Death MH - Dilatation, Pathologic/diagnostic imaging/mortality MH - Familial Primary Pulmonary Hypertension/*complications/mortality MH - Female MH - Hemodynamics MH - Hospitalization MH - Humans MH - Hypertension, Pulmonary/*complications/mortality MH - Infant MH - Male MH - Pulmonary Artery/*pathology MH - Radiography, Thoracic MH - Retrospective Studies MH - Survival Analysis OTO - NOTNLM OT - Children OT - Main pulmonary artery dilatation OT - Outcome OT - Pulmonary hypertension EDAT- 2017/09/15 06:00 MHDA- 2019/03/21 06:00 CRDT- 2017/09/15 06:00 PHST- 2017/09/15 06:00 [pubmed] PHST- 2019/03/21 06:00 [medline] PHST- 2017/09/15 06:00 [entrez] AID - 10.1253/circj.CJ-17-0092 [doi] PST - ppublish SO - Circ J. 2018 Jan 25;82(2):541-545. doi: 10.1253/circj.CJ-17-0092. Epub 2017 Sep 13.