TABLE 2.
Time delays in patients undergoing primary percutaneous coronary intervention (PCI) grouped according to hospital of first contact
| QHLI (n=69) | Referring hospitals (n=128) | P | |
|---|---|---|---|
| Median delays, min* | |||
| Total door-to-balloon time | 87 (74, 110) | 114 (91, 141) | <0.0001 |
| First door to ECG | 10 (6, 18) | 9 (3.5, 15.5) | 0.3 |
| First door to ambulance call | NA | 29 (20, 46.5) | NA |
| Ambulance call to QHLI door | NA | 40 (32, 48) | NA |
| QHLI door to cath lab door | 54 (46, 72) | 9 (6, 16) | <0.0001 |
| Cath lab door to balloon | 30 (22, 36) | 29 (21, 34) | 0.3 |
| Door-to-balloon time, n (%) | |||
| ≤60 min | 9 (13) | 0 (0) | <0.0001 |
| ≤90 min | 38 (55) | 31 (24) | <0.0001 |
| ≤120 min | 58 (84) | 74 (58) | <0.0001 |
| ≤180 min | 67 (97) | 115 (90) | 0.09 |
*
Values are given as median (25th percentile, 75th percentile). Cath lab Catheterization laboratory; ECG Electrocardiogram; NA Not applicable; QHLI Quebec Heart and Lung Institute