BACKGROUND As the probability increases that the arterial switch operation is optimal treatment for transposition, detailed information about outcomes and the circumstances in which they are suboptimal becomes important. METHODS AND RESULTS A multi-institutional prospective study with annual detailed follow-up included 513 neonates with simple transposition or transposition and ventricular se...

BACKGROUND An intramural coronary is an uncommon but potentially significant risk factor for transfer of the coronary arteries as part of the arterial switch operation for transposition of the great arteries. Preoperative diagnosis is advantageous because it helps prevent accidental injury to the intramural coronary artery during transection of the aortic root and excision of the coronary arter...

Anatomical studies were made on 70 necropsied hearts with atrioventricular defects from patients with situs solitus and atrioventricular concordance, all having a common atrioventricular orifice. The arterial connections were concordant in 68 and were double outlet right ventricle in two; cases with arterial discordance (transposition) or single outlet of the heart were excluded. It proved pos...

Real-time, two dimensional echocardiography was used to identify great artery relations in 23 infants and small children, including 16 patients with angiography documented transposition of the great arteries, tetralogy of Fallot, or pulmonary aresia. Using this technique, the heart was scanned perpendicular to its long axis at the origin of the great arteries. Great arteries cross-sectioned per...

PURPOSE To assess the mechanical ability of the inferior oblique neurofibrovascular bundle (NFVB) to act as an ancillary origin for the inferior oblique muscle after anterior transposition. METHODS Stress-strain relations and Young's modulus of elasticity, a measure of tissue stiffness, were determined for the NFVB in vitro, in situ, and in vivo in dynamic and static conditions. For compariso...

OBJECTIVE To evaluate the results from transposition of the triceps for elbow flexion in patients with chronic and complete injury to the upper trunk of the brachial plexus. METHODS This was a retrospective study, including only patients who had biceps grade 0 and triceps grade 5, who underwent anterior transfer of the triceps muscle, performed between 1998 and 2005. The affected side, sex, t...

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