Changes in left ventricular strain parameters following pediatric heart transplantation.
STE is increasingly utilized to assess strain in a variety of pathologies. Strain measurements have demonstrated utility following HTx and may aid in the detection of rejection and CAV. Strain parameters have not been well defined in the pediatric HTx population. This study aimed to describe strain in pediatric HTx recipients compared to controls and assess changes over time. All pediatric HTx recipients with available echocardiograms (2004-2015) without rejection or CAV were identified. Longitudinal and circumferential strain was measured at <1 month, 1 year, 3 years, and 5 years post-transplant and compared to controls. A total of 218 echocardiograms were analyzed in 79 HTx recipients. At <1 month post-transplant, there was a significant decrement in longitudinal strain (GLS -14.6 vs -19.2, P < .001) with concurrent augmentation of circumferential strain (GCS -27.3 vs -24.3, P = .005). By 1 year post-HTx, all strain parameters normalized and were not significantly different from the control population. In the absence of graft complications, strain parameters did not change up to 5 years post-transplant. Abnormal longitudinal strain parameters are present in the early post-HTx period with a compensatory increase in circumferential strain. These changes normalize by 1 year post-transplant and do not change over time in the absence of graft complications.
['Godown|Justin|J|0000-0002-7068-0625', 'Dodd|Debra A|DA|', 'Stanley|Michael|M|', 'Havens|Corey|C|', 'Xu|Meng|M|', 'Slaughter|James C|JC|', 'Bearl|David W|DW|', 'Soslow|Jonathan H|JH|0000-0001-9194-5330']
D000293:Adolescent D016022:Case-Control Studies D002648:Child D002675:Child, Preschool D004452:Echocardiography D005260:Female D005500:Follow-Up Studies D016027:Heart Transplantation D006352:Heart Ventricles D006801:Humans D007223:Infant D007231:Infant, Newborn D008297:Male D011183:Postoperative Complications D012016:Reference Values D012189:Retrospective Studies D018487:Ventricular Dysfunction, Left D016277:Ventricular Function, Left
strain pediatric heart transplant echocardiography