Fig. 1.

ECGs of two sisters, both of whom experienced sudden cardiac arrest. a ECG recorded only 1 month before sudden cardiac death at the age of 31 years while in bed. b ECG recorded only a few months before resuscitation from IVF at the age of 44 years, while drinking coffee. ECG a, courtesy of Dr. M.P. van den Berg, University Medical Center Groningen, the Netherlands