Outpatient radiofrequency catheter ablation has been shown to be safe and cost effective in the treatment of supraventricular tachycardias due to atrioventricular nodal reentrant tachycardia and atrioventricular reentry tachycardia. Complications secondary to vascular access are similar to those during outpatient cardiac catheterization procedures. Specific complications due to catheter manipulation and radiofrequency ablation include among others cardiac tamponade, AV block and proarrhythmia. Proper patient selection can help to prevent specific complications in outpatient ablations. Patients probably not suitable for outpatient procedures include the elderly as well as comorbid patients. Not all ablation procedures are suitable for the outpatient setting. Ablation procedures with an increased risk of AV block or proarrhythmia should not be performed on an outpatient basis. In order to effectively perform outpatient procedures a back up support with specially trained personnel is helpful. Radiofrequency ablations require considerable experience, therefore ablation procedures int he outpatient setting should be restricted to operators with adequate experience.