TABLE 1.
Patient Characteristics and Preoperative Data
| All, n (%) | Pregroup, n (%) | Postgroup, n (%) | p | |
|---|---|---|---|---|
| Years | 2014 to April 2020 | 2014–2017 | May 2018 to April 2020 | |
| Patients, n | 145 | 78 | 67 | |
| Age, y | 75 (69–82.5) | 78 (70.75–85) | 74 (68–81) | 0.018* |
| Sex, male | 51 (35) | 25 (32) | 26 (39) | 0.396 |
| Charlson Comorbidity Index | 3 (2–4.5) | 3 (1–5) | 3 (2–4) | 0.444* |
| ASA classification 4–5 | 126 (87) | 67 (86) | 59 (88) | 0.700 |
| Dependent functional status | 38 (26) | 20 (26) | 18 (27) | 0.867 |
| Symptoms >24 h before first ED | 67 (46) | 34 (44) | 33 (49) | 0.495 |
| Referred from another hospital | 81 (56) | 37 (47) | 44 (66) | 0.027 |
| Refused ICU admission | 20 (14) | 14 (18) | 6 (9) | 0.117 |
| Acute organ dysfunctions | 0.878 | |||
| – No | 103 (71) | 55 (71) | 48 (72) | |
| – Yes, but no shock | 34 (23) | 18 (23) | 16 (24) | |
| – Shock | 8 (6) | 5 (6) | 3 (4) | |
| Lactate, mmol/L | 2 (1.3–3.4) | 2 (1.3–3.7) | 1.9 (1.3–3.2) | 0.671* |
| CRP, mg/L | 102 (26.5–251.5) | 101 (25.25–229.25) | 112 (27–264) | 0.644* |
| Preoperative imaging | ||||
| No CT | 7 (5) | 7 (9) | 0 (0) | 0.015** |
| CT, noncontrast | 17 (12) | 13 (17) | 4 (6) | 0.046 |
| CT, venous phase contrast | 63 (43) | 41 (53) | 22 (33) | 0.017 |
| CT, triple phase | 58 (40) | 17 (22) | 41 (61) | <0.001 |
| CT, any contrast | 121 (83) | 58 (74) | 63 (94) | 0.001 |
| AMI suspected in CT referral | 60 (43) | 26 (37) | 34 (51) | 0.039 |
| Diagnostic CT in the referring center | 67 (46) | 30 (38) | 37 (55) | 0.044 |
| Delay ED-OR in study hospital, hours | 5.5 (2.25–12) | 7 (3.5–12.5) | 3 (2–11) | 0.023* |
| Etiology embolism / thrombus | 54/91 (37/63) | 33/45 (42/58) | 21/46 (31/69) | 0.173 |
Continuous variables are presented as median (interquartile range). Boldface indicates statistical significance.
*Mann-Whitney U test.
**Fischer’s exact test (others, χ2).
ASA, American Society of Anesthesiologists; CRP, C-reactive protein; ED, emergency department.