[Congenitally corrected transposition of the great arteries with coexisting stenosis of pulmonary trunk valve and ventricular septum defect in a 55-year-old woman--a case report].

Congenitally corrected transposition of the great arteries (CCTGA) is a rare cardiac malformation. This anomaly is characterised by atrioventricular as well as ventriculoarterial discordance. Isolated CCTGA may cause no symptoms until adult life.

[QRS and cycle length alternans during atrioventricular nodal reentry tachycardia: case report].

A 23-year old man with paroxysmal, poorly tolerated and spontaneously terminating palpitations, was referred to our department for electrophysiological study. Burst pacing from high right atrium using a cycle length of 350 ms induced a slowfast atrioventricular nodal reentry tachycardia. We excluded the presence of accessory atrioventricular tracts.