Patient characteristics
From 107 million discharges included in NRD 2016-2018, we identified a total of 7212 patients who presented with ventricular tachycardia and had catheter ablation. Baseline characteristics were stratified according to presence or absence of chronic kidney disease. 1679 patients had CKD and 5533 did not.
Mean age was higher in CKD group with 67.9 (±11.09) and 60.5 (±14.56) in non-CKD group. Female sex constituted 12% in patients with CKD and 21% in those without. CKD group was associated with Charlson comorbidity index score of 3 or more (98% vs 41%), congestive heart failure (92% vs 71%), history of MI (40% vs 32%), history of PCI (28% vs 21%), history of CABG (31% vs 18%), diabetes mellitus (46% vs 26%), and dyslipidemia (56% vs 49%). Other patient and hospital characteristics were not different between the two groups (Table 1).