Table 4 Secondary endpoints—freeze parameters
From: Comparison of pulmonary vein isolation between two commercially available cryoballoon systems
Minimal temperature (°C, median, interquartile range) | Temperature at TTI (°C, median, interquartile range) | TTI (s, median, interquartile range) | |||||||
|---|---|---|---|---|---|---|---|---|---|
Arctic Front™ (n = 306) | PolarX™ (n = 146) | p value | Arctic Front™ (n = 306) | PolarX™ (n = 146) | p value | Arctic Front (n = 306) | PolarX™ (n = 146) | p value | |
LSPV | − 52 (− 55 to − 47) | − 56.5 (− 60 to − 55) | < 0.001 | − 40 (− 45 to − 33) | − 48.5 (− 50 to − 44) | < 0.001 | 49 (37–64) | 60 (38–74) | 0.819 |
LIPV | − 48 (− 52 to − 47) | − 53 (− 56 to − 51) | < 0.001 | − 37 (− 42 to − 27) | − 42.5 (− 47 to − 40) | < 0.001 | 39 (25–74) | 56.5 (35–87) | 0.218 |
RSPV | − 54 (− 57 to − 51) | − 60 (− 64 to − 53) | < 0.001 | − 39.5 (− 43 to − 32) | − 42.5 (− 50 to − 35.0) | < 0.001 | 40(28–66) | 44.5 (25–79) | 0.424 |
RIPV | − 51 (− 54 to − 46) | − 57 (− 65 to − 53) | < 0.001 | − 40 (− 42 to − 35) | − 43 (− 49 to − 34) | < 0.001 | 52.5 (36–90) | 47.5 (31–100) | 0.062 |