Table 6. Complications of CM-1 Patients, spinal decompression cohort, and non-spinal decompression cohort.
| Complication | CM-1 patients (N=5,438) | Spinal decompression (N=3,596) | Non-spinal decompression (N=1,842) | P value |
|---|---|---|---|---|
| Dysphagia, n (%) | 44 (0.8) | 29 (0.8) | 15 (0.8) | 0.545 |
| Nervous, n (%) | 77 (1.4) | 50 (1.4) | 27 (1.5) | 0.809 |
| Cardiac, n (%) | 12 (0.2) | 9 (0.3) | 3 (0.2) | 0.761 |
| PVD, n (%) | 1 (0.1) | 0 | 1 (0.1) | 0.339 |
| Respiratory, n (%) | 29 (0.5) | 19 (0.5) | 10 (0.5) | 0.542 |
| Digestive, n (%) | 27 (0.5) | 15 (0.4) | 12 (0.7) | 0.307 |
| Urinary, n (%) | 13 (0.2) | 8 (0.2) | 5 (0.3) | 0.772 |
| Device, n (%) | 3 (0.1) | 2 (0.1) | 1 (0.1) | 0.734 |
| Shock, n (%) | 1 (0.1) | 1 (0.1) | 0 | 0.661 |
| Hematoma/seroma, n (%) | 4 (0.1) | 3 (0.1) | 1 (0.1) | 0.583 |
| Puncture, n (%) | 14 (0.3) | 10 (0.3) | 4 (02) | 0.784 |
| Infection, n (%) | 8 (0.1) | 2 (0.1) | 6 (0.3) | 0.021* |
| Anemia, n (%) | 22 (0.4) | 16 (0.4) | 6 (0.3) | 0.654 |
| ARDS, n (%) | 29 (0.5) | 18 (0.5) | 11 (0.6) | 0.695 |
| Wound, n (%) | 2 (0.1) | 1 (0.1) | 1 (0.1) | 0.563 |
| Dural tear, n (%) | 21 (0.4) | 17 (0.5) | 4 (0.2) | 0.172 |
| PE, n (%) | 1 (0.1) | 1 (0.1) | 0 | 0.661 |
| DVT, n (%) | 3 (0.1) | 2 (0.1) | 1 (0.1) | 0.734 |
| Any complication, n (%) | 261 (4.8) | 168 (4.7) | 93 (5.0) | 0.547 |
*, significance of P<0.05. CM-1, Chiari malformations type 1; PVD, peripheral vascular disease; ARDS, acute respiratory distress syndrome; PE, pulmonary embolism; DVT, deep vein thrombosis.