Table 2.
CPET Characteristics in Patients With ARVC/D
| Characteristic | No Transplant (n=28) | Transplant (n=10) | P Valuea | Total (n=38) |
|---|---|---|---|---|
| Absolute pVO2, mL/min | 1697 (766) | 1232 (1056) | 0.037 | 1659 (785) |
| Normalized pVO2, mL/kg per min | 22.6 (10.9) | 15.8 (10.3) | 0.006 | 21.1 (9.8) |
| Predicted VO2, % | 73.0 (34.6) | 55.0 (31.3) | 0.084 | 71.5 (36.1) |
| Ve/VCO2 slope (n=35) | 29.0 (5.6) | 37.2 (12.3) | <0.001 | 30.0 (8.3) |
| VO2 at anaerobic threshold (n=32), mL/kg per min | 14.7 (6.2) | 11.5 (5.6) | 0.068 | 13.0 (5.3) |
| RER | 1.14 (0.14) | 1.08 (0.11) | 0.353 | 1.10 (0.13) |
| Peak HR, beats per min | 155 (51) | 121 (31) | 0.111 | 140 (51) |
| Predicted HR, % | 82 (22) | 68 (17) | 0.101 | 81 (24) |
| Submaximal test (RER <1.05) | 6 (21) | 3 (30) | 0.673 | 9 (24) |
All variables are expressed as median (interquartile range) and n=38, unless noted. ARVC/D indicates arrhythmogenic right ventricular cardiomyopathy/dysplasia; CPET, cardiopulmonary exercise testing; HR, heart rate; pVO2, peak VO2; RER, respiratory exchange ratio; Ve/VCO2 slope, ventilatory efficiency; VO2, oxygen consumption.
a
Continuous variables were analyzed using Wilcoxon rank‐sum test (Mann‐Whitney U test), and categorical data were analyzed using Fisher exact test.