Abstract
A twenty-two-years-old male presented a slow junctional rhythm without “P” wave activity and was subsequently found to have atrial paralysis.
The EKG revealed a slow junctional rhythm at 48/min without “P” wave activity.
The vectorcardiogram showed normal QRS loops but no identifiable P loops.
Intracavitary EKGs recorded simultaneously with the scalar EKG showed no evidence of P wave activity. And absence of “A” wave in right atrial pressure curve.
The His's bundle electrogram revealed no “A” spike, but “H” and “V” potentials were clearly seen.
The H-V time was 70 msec.
Attempts at pacing the right atrium at various sites with stimuli up to 20 mA were unsuccessful.
This patient has no complications
