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Submitted: 27 May 2016 Modified: 29 August 2017
HERDIN Record #: PCHRD16052715192416

Myocardial perfusion scintigraphy in transposition of the great arteries after an arterial switch operation in infants.

Herwin John M. Aycocho,
Jerry M. Obaldo

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An abnormal myocardial perfusion is not uncommon in congenital heart defects (CHD). Many case reports and prospective studies were done describing myocardial peOision scintigraphy (MPS)findings after an arterial switch operation (ASO) among transposition of the great arteries (TCA), but to the best of the authors' knowledge, none have cited MPS findings in the immediate post-operative petiod. This paper aims to show two ckfferent clinicalthuatiomts in which (MPS) was used in the assessment of myocarchalfiinction in TCA immediatelyfollowing an arterial switch operation. Two male infants; aged 2 months and 4 months; both diagnosed with transposition of the great arteries presenting with past-operative morbidities after an arterial switch operation were referred to the Department of Nuclear Medicine/or evaluation. The younger infant was ditty discharged improved with an earlier magical intervention in contrast to the other who expired Bothpatients revealed a scintigraphic picture of myocarcbal ischemia and left ventricular a54ifiniction with concomitant right ventricular hypertrophy MPS .findings and reflective clinical pictures of patients with corrected congenital disease are yet to be/illy elticidated,.from the expected natural course after the stag/Cal intervention and long term complications ofsuch cases. The two cases present an invaluable avenue of non-invasive diagnostic modality using-MPS to assess probable pathologic mechanisms that occur after an arterial switch operation, and perhaps suggest incremental value not only in the post-operative period but in the preoperative scenario in the prognostication of these patients.

Publication Type
Journal
Publication Sub Type
Case Series
Title
The Philippine Journal of Nuclear Medicine
Frequency
Semi-Annual
Publication Date
July-December 2016
Volume
11
Issue
2
Page(s)
60-66
LocationLocation CodeAvailable FormatAvailability
Philippine Council for Health Research and Development Library Box No. 21 Fulltext (Request Document)