Table 2. Circumstances of death.

Circumstances of death	n
Heart rhythm disorder     • One case of atrial and ventricular extrasystole     • One case of persistent flat T waves despite preventive therapy with potassium and magnesium	2
Chronic respiratory insufficiency	2
Sudden death One of had a very high QTc without potassium disorders or another cause	3
Gastrointestinal bleeding	2
Septic shock	4
Heart failure	1
Severe depression	1