... symptoms. The main reasons for patients seeking therapy were tachycardic palpitations (281 patients, 91.5%) and increasing incidence of episodes (224 patients, 78.1%). In descending order, patients ... were included into the study. In 230 of the 309 patients the SVT substrate was an AVNRT (74.4%), in 66 patients an AVRT (21.4%) and in 13 patients an EAT (4.2%). The distribution between the ... are in line with the literature (1-6, 9, 10). Quality of life in long term follow-up: Prior to interventional therapy, patients mainly suffered from symptoms like tachycardia, increasing incidence...