Using a Cloud Computing System to Reduce Door-to-Balloon Time in Acute ST-Elevation Myocardial Infarction Patients Transferred for Percutaneous Coronary Intervention
Table 2
Time interval difference between traditional referral and transfer with protocol.
Variables
Transferred through protocol group ( = 262)
Traditional referral process group ( = 107)
value
Door-to-ECG time (mins)
2 (1, 4)
2 (0, 4)
0.618
Killip I/II
2 (1, 4)
2 (0, 4.75)
0.921
Killip III/IV
2 (1, 5)
1 (0, 2)
0.944
Door-to-CathLab time (mins)
27 (20, 33)
28 (21, 36)
0.466
Killip I/II
25 (19, 33)
28 (21, 36)
0.060
Killip III/IV
31 (25, 36)
27 (20, 37)
0.438
CathLab-to-balloon time (mins)
18 (14, 22)
18 (13, 23)
0.497
Killip I/II
17 (14, 21.75)
16.5 (13, 21)
0.729
Killip III/IV
18 (13, 22.25)
22 (16, 31)
0.041
Door-to-balloon time (mins)
45 (37, 55)
47 (38, 58)
0.388
Killip I/II
43 (36, 54)
46 (36.25, 57.75)
0.375
Killip III/IV
51.5 (40.75, 61)
50 (44, 64)
0.672
Pain to door of STEMI receiving center time (mins)
163 (116, 264)
174 (118, 275)
0.309
Killip I/II
154 (115, 240)
180.5 (113, 274.75)
0.154
Killip III/IV
185 (122.25, 314.25)
160 (118, 247)
0.777
Pain to ECG time (mins)
165 (119, 266)
174 (118, 274)
0.123
Killip I/II
157.5 (117.5, 239.25)
186 (119.5, 286.0)
0.043
Killip III/IV
185 (125, 330.5)
161 (127, 244)
0.777
Pain to balloon (mins)
199 (161, 306)
214 (165, 327)
0.159
Killip I/II
194.5 (159.25, 270)
215.5 (160.5, 327.75)
0.056
Killip III/IV
229 (172, 381.25)
212 (176, 327)
0.619
Door-to-balloon time < 60 mins
85.1% (223)
79.4% (85)
0.183
Killip I/II
88.2% (180)
81.0% (68)
0.104
Killip III/IV
74.1% (43)
73.9% (17)
0.983
Door-to-balloon time < 90 mins
99.2% (260)
99.1% (106)
0.868
Killip I/II
100% (204)
100% (84)
1.000
Killip III/IV
96.6% (56)
95.7% (22)
0.847
Data are expressed as median (25% percentile, 75% percentile) or % (); CathLab: catheterization laboratory; ECG: electrocardiogram.
