Table 2. Procedural outcomes
Control (n=451) ICE (n=155)
Origins
RVOT, n(%) 269 (59.6) 65 (41.9)*
LVOT, n(%) 79 (17.5) 33 (21.3)
Papillary muscle, n(%) 6 (1.3) 18 (11.6)*
Tricuspid or mitral annulus, n(%) 21 (4.7) 13 (8.4)
Epicardium or summit, n(%) 55 (11.3) 11 (7.1)
Other positions, n(%) 25 (5.5) 15 (9.7)
Total procedure time, mean (SD), minutes 103.9 (47.2) 115.6 (51.0)*
Total ablation time, mean (SD), seconds 170.5 (94.1) 173.5 (89.7)
Fluoroscopy time, mean (SD), minutes 129.1 (85.8) 83.8 (70.4)*
Dose of X-ray, mean (SD), mGy 12.15 (8.2) 7.9 (6.7)*
Number of ablation lesions, n(%) 1.66 (0.94) 1.52 (0.82)
Instant results
Success, n(%) 377 (83.4) 130 (83.4)
Partial response, n(%) 35 (7.8) 15 (9.7)
Failure, n(%) 39 (8.6) 10 (6.5)
Complications
Major, n(%) 4 (0.9) 0 (0)
Minor, n(%) 72 (16.0) 15 (9.7)
Length of stay post procedure, mean (SD), days 1.99 (2.35) 1.56 (0.95)*
Abbreviations: ICE: intracardiac echocardiography; RVOT: right ventricular outflow tract; LVOT: left ventricular outflow tract. Abbreviations: ICE: intracardiac echocardiography; RVOT: right ventricular outflow tract; LVOT: left ventricular outflow tract. Abbreviations: ICE: intracardiac echocardiography; RVOT: right ventricular outflow tract; LVOT: left ventricular outflow tract.
P<0.05, compared with control group * P<0.05, compared with control group * P<0.05, compared with control group