TABLE 1.
Patient characteristics and outcomes
| Variable | Value |
|---|---|
| No. of patients | 1622 |
| Age in yrs, mean (SD) | 52.9 (15.8) |
| Range | (18–89) |
| Sex | |
| Male | 769 (47.4) |
| Female | 853 (52.6) |
| BMI in kg/m2 | 28.9 (6.2) |
| Range | (14.6–59.8) |
| History of VTE | 50 (3.1) |
| KPS score <80 | 281 (17.3) |
| Preop motor deficit | 212 (13.1) |
| Chronic steroid use | 544 (33.5) |
| Preop antiplatelet use | 336 (20.7) |
| Preop anticoagulation | 64 (3.9) |
| Admission type | |
| Elective | 1502 (92.6) |
| Nonelective | 120 (7.4) |
| Revision craniotomy | 317 (19.5) |
| Location | |
| Supratentorial | 1362 (84.0) |
| Infratentorial | 260 (16.0) |
| Intraaxial | 963 (59.4) |
| Extraaxial | 659 (40.6) |
| Pathology | |
| Glial-based tumor | 784 (48.3) |
| Schwannoma/meningioma | 570 (35.1) |
| Metastatic lesion | 108 (6.7) |
| Other | 160 (9.9) |
| Pathological grade* | |
| 1 | 568 (35.5) |
| 2 | 270 (16.9) |
| 3 | 247 (15.4) |
| 4 | 516 (32.2) |
| New postop motor deficit | 165 (10.1) |
| Inpatient extremity ultrasound | 137 (8.4) |
| VTE | 48 (3.0) |
| Inpatient VTE | 20 (1.2) |
| Outpatient VTE | 28 (1.7) |
| DVT | 38 (2.3) |
| PE | 14 (0.9) |
| DVT & PE | 4 (0.2) |
| Day of VTE diagnosis | 13.1 (9.5) |
| Inpatient VTE | 5.4 (4.3) |
| Range | (0–18) |
| Outpatient VTE | 18.6 (8.3) |
| Range | (6–30) |
| Prophylactic anticoagulation | 192 (11.8) |
| Subcutaneous heparin | 77 (40.1)† |
| Subcutaneous LMWH | 110 (57.3)† |
| Oral anticoagulant | 5 (2.6)† |
| Day of chemoprophylaxis initiation | 4.6 (3.8) |
| Range | (0–22) |
| Postop ICH | 30 (1.9) |
| ICH after DVT chemoprophylaxis | 1 (0.5)† |
| Intubated >24 hr/reintubated | 58 (3.6) |
| Mean LOS in days | 3.8 (4.5) |
| Range | (1–119) |
| Discharge location | |
| Home | 1298 (80.0) |
| Inpatient rehabilitation | 240 (14.8) |
| Skilled nursing facility | 82 (5.1) |
| Inpatient mortality | 2 (0.1) |
LOS = length of stay.
Values are presented as number of patients (%) unless otherwise indicated.
*
There were 21 lesions that were not assigned a pathological grade.
†
Denominator for percentage was number of patients receiving VTE chemoprophylaxis.