Contra-indications
- Decompensated heart failure
- Uncontrolled hypertension
- Refractory arrhythmia
- Severe contrast medium allergy
- Inability for patient cooperation
- Pregnancy
- Active infection
- Severe renal failure
- Coagulopathy / anticoagulant state ( high INR / PT)
- Severe hemorrhage
- Intoxication (digitalis)
- Electrolyte disturbance (hypokaliema)