Antiarrhythmic or time bomb? A severe iatrogenic bradyarrhythmia

We report a case of severe bradyarrythmia with hypotension and extremely large QRS due to proarrhythmic effect of drug combination (amiodarone following infusion of propafenone) for the conversion of Paroxysmal Atrial Fibrillation (PAF) in a 74 year old woman. The authors focus on the important side effects and complications due to aggressive treatment of not life-threatening arrhythmias, such as PAF without haemodinamic compromise in older patients. At conclusion “primum non nocere“.