Retrograde catheterisation of left atrium.

Retrograde catheterisation of the left atrium using a no. 8 F pigtail catheter introduced percutaneously via a femoral artery was successfully accomplished in 48 out of 50 patients undergoing diagnostic cardiac catheterisation. There was one episode of ventricular fibrillation requiring cardioversion (without sequelae), and one episode of ventricular tachycardia which was self-terminating, but no other complications and no deaths. The average fluoroscopy time was four minutes.