HPSD ablation: Complications
There has been concern regarding using HPSD ablation with CF sensing catheters especially over the thin posterior wall of the LA due to potential complications like atrioesophageal fistula and steam pops leading to cardiac tamponade. Most previous clinical studies utilized high power and longer ablation duration to perform segmental PV isolation using non-CF catheters that resulted in an increased incidence of cardiac tamponade and PV stenosis.38, 49, 50Therefore, it was thought that shortening the duration of the high power ablation might mitigate these complications. Subsequent studies shortened the ablation duration to less than 15 seconds depending on the power used and demonstrated a comparable safety profile to conventional ablation.23, 29, 39