1066 Analysis of the systemic right ventricle (RV) in patients after atrial switch operation for the correction of complete transposition of great arteries (d-TGA) by MRI
© Hoffmann et al; licensee BioMed Central Ltd. 2008
Published: 22 October 2008
To determine morphologic and functional alterations of the systemic ventricle in patients after atrial switch operation for the correction of complete transposition of the great arteries (d-TGA). Right (RV) and left ventricular (LV) volumes were compared with those of normals.
MRI examinations were performed in 37 patients (24 male and 13 female) after Mustard/Senning-operation (MSO-atrial switch) to correct d-TGA. A complete set of short axis slices were acquired using steady state free precession sequences on a 1,5 T-scanner (Gyroscan ASC-NT, PowerTrak 6000, Philips). RV and LV parameters were compared between the patient group and normal values.
MRI is useful to examine cardiac morphology and function of patients after MSO (atrial switch) for the correction of d-TGA. The RV hypertrophy is a normal adaption due to the higher blood pressure in the systemic circulation. Patients whose hypertrophy of the right ventricular is more distinctive have better heart function and less heart dilatation. The extent of hypertrophy after MSO may be an important prognostic factor to predict the development of RV insufficiency in these patients.
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