Ablation of atrial tachyarrhythmias late after surgical correction of tetralogy of Fallot: long-term follow-up.

Background: After the surgical correction of tetralogy of Fallot, surgical scars and natural obstacles form pathways capable of supporting an atrial tachyarrhythmia (AT). Radiofrequency (RF) ablation is effective, although the few studies published on this topic had relatively short follow-up periods.

Aim: The aims of the study were to evaluate the acute and long-term effects of RF ablation of AT and examine the charac-teristics of arrhythmia recurrence.

Ablation of Macro-Re-Entrant Atrial Arrhythmia Late after Surgical Aortic Valve Replacement.

Background: Re-entrant atrial arrhythmias are common in patients after cardiac surgery. To date, however, no studies have reported the safety and efficacy of radiofrequency (RF) ablation of macro-re-entrant atrial arrhythmias in a unique, homogeneous group of patients after surgical replacement of the aortic valve and single right atriotomy.

Methods: Among over 4,000 RF catheter ablations performed at the authors' center between 2008 and 2014, eight patients (seven males, one female; mean age 55.

Old markers, new approach to assessment of risk in heart failure.

Background: Heart transplantation (HTx) is still the optimal treatment for refractory heart failure (HF). However, there is great disproportion between the number of donors and potential recipients. Several parameters are used in patient evaluation before HTx, but the qualification process still requires improvement.

Severe chronic heart failure in patients considered for heart transplantation in Poland.

Background: Based on the results of clinical trials, the prognosis for patients with severe heart failure (HF) has improved over the last 20 years. However, clinical trials do not reflect 'real life' due to patient selection. Thus, the aim of the POLKARD-HF registry was the analysis of survival of patients with refractory HF referred for orthotopic heart transplantation (OHT).