Abstract
Coronary reimplantation during arterial switch operation (ASO) may affect coronary artery growth and function during childhood. The purpose of this study was to assess coronary artery diameter and regional myocardial blood flow (MBF) and myocardial flow reserve (MFR) in children after neonatal ASO. We measured proximal diameters of left anterior descending (LAD), left circumflex, and posterior descending coronary arteries on coronary angiogram in 12 children (median age 11 years, range 7.6 to 15.1) with a history of neonatal ASO. These children then underwent cardiac positron emission tomographic imaging using nitrogen-13 ammonia to assess MBF at baseline and during intravenous adenosine hyperemia in regions supplied by these 3 coronary arteries. Coronary artery z-scores were within normal range (-2.0 to 2.0) for 32 of 36 coronary arteries. MFR (ratio of hyperemic to basal MBF) was normal (>2.5) in all myocardial regions in 10 of 12 patients. The remaining 2 patients, 1 with a dual LAD and 1 with LAD origin from the right coronary artery, had generalized impairment of hyperemic MBF (<2.0 ml/g/min) and low MFR (<2.5). Coronary artery z-scores and MFR in corresponding myocardial territories were not correlated (r = 0.15, p = 0.36...Continue Reading
References
Aug 1, 1978·Thorax·M H Yacoub, R Radley-Smith
Dec 1, 1992·American Heart Journal·E TsudaT Kamiya
Apr 1, 1989·Circulation·L L DemerM E Merhige
Jun 1, 1981·Circulation·H R SchelbertD E Kuhl
Apr 1, 1981·Circulation·R M FreedomG A Trusler
Jul 15, 1995·The American Journal of Cardiology·R E TanelR P Burke
Apr 1, 1995·Circulation·M Di CarliH R Schelbert
Sep 1, 1994·Journal of the American College of Cardiology·A M HayesM Tynan
Jun 23, 1994·The New England Journal of Medicine·N G UrenP G Camici
Feb 1, 1994·Journal of the American College of Cardiology·S N WeindlingS T Treves
Sep 1, 1996·Journal of the American College of Cardiology·O MuzikM F Di Carli
Jan 1, 1997·Journal of the American College of Cardiology·P BonhoefferD Sidi
Oct 6, 1997·The Annals of Thoracic Surgery·K YatsunamiY Imai
Dec 19, 1998·Journal of the American College of Cardiology·F M BengelJ Hess
Feb 13, 2001·European Heart Journal·M Giulia GagliardiP Ragonese
Apr 11, 2001·Circulation·M HauserJ Hess
Jun 28, 2001·The Annals of Thoracic Surgery·J W BrownM W Turrentine
Sep 25, 2002·Circulation·Gylfi OskarssonPeeter Jögi
Sep 13, 2003·Circulation·A LegendreC Planche
Citations
Apr 13, 2011·Current Cardiology Reports·Susan Lucy RocheErwin Notker Oechslin
Nov 30, 2010·Pediatric Clinics of North America·Masato Takahashi
Jul 12, 2013·Pediatric Cardiology·María N PizziJaume Candell-Riera
Aug 14, 2012·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Belma Saygili KaragolSelmin Karademir
Jul 4, 2016·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Meryl S CohenLeo Lopez
May 12, 2018·Pediatric Cardiology·Cory V NoelRajesh Krishnamurthy