Data collection
From each patient, besides demographic data [body mass index (BMI),age, gender], we collected the AF type, AF duration, medical history [hypertension, heart failure (HF), prior stroke/transient ischemic attack (TIA),coronary heart disease (CAD) and diabetes mellitus (DM)], hematological indices [hemoglobin (Hb), platelet (PLT) count], serum biochemical parameters [aspartate aminotransferase (AST), alanine aminotransferase (ALT), direct bilirubin (DBIL), total bilirubin (TBIL), creatinine], echocardiographic parameters [left ventricular end diastolic diameter (LVEDD), left atrium diameter (LAD), left ventricular ejection fraction (LVEF)], CHA2DS2-VASc score, HAS-BLED score, EHRA stratification and medical therapy (drugs for rhythm control, rate control and anticoagulation). We estimated the glomerular filtration rate (eGFR) according to the Cockcroft-Gault equation.
For renal and hepatic transplant recipients, we also reviewed the history of transplantation, the time from transplantation to ablation and the combination of immunosuppressive drugs.