Table 1. Results for all patients with CO poisoning and those with 1 month follow-up.
Clinical findings are shown for patients who sustained CO poisoning in the first column. Those with follow-up results at 1 month as Global Deterioration Scale (GDS) are shown in the second with a split between those with a good outcome (GDS = 1) and neurological sequelae (GDS > 1). The rows show the %COHb level, blood lactate, and troponin when first seen in the ED, number (and %) of those who sustained a loss of consciousness and who were intubated in the ED, first Glasgow Coma Score (GCS) on ED arrival, estimated duration of CO exposure with the number (n) of patients where an estimate could be made, number of patients who received hyperbaric oxygen treatment (HBO2), and GDS score at 1 month follow-up. Values are mean ± SD for continuous variables and count (proportion) for categorical variables. Statistical comparison was made between good outcome and neurological sequelae groups.
| All patients (n = 150) | GDS follow-up (n = 98) | ||
|---|---|---|---|
| Good (n = 65) | Neuro-Seq (n = 33) | ||
| COHb% | 19.8 ± 11.6 | 19.2 ± 10.9 | 21.3 ± 12.6 |
| Lactate (mM) | 3.8 ± 5.0 | 4.0 ± 6.5 | 4.0 ± 3.2 |
| Troponin (ng/ml) | 1111 ± 3628 | 286 ± 772 | 3120 ± 6328* |
| LOC, n (%) | 65 (43%) | 29 (43%) | 16 (50%) |
| Intubated, n (%) | 30 (20%) | 12 (17%) | 11 (34%)* |
| Acute GCS | 13.1 ± 3.7 | 13.0 ± 3.5 | 12.2 ± 4.3 |
| CO exposure (hours) | 9.6 ± 23.1 (n = 78) | 14.0 ± 34.3 (n = 30) | 4.7 ± 4.7 (n = 13) |
| HBO treatment | 133 (89%) | 59 (91%) | 29 (88%) |
| GDS (1 month) | 1.9 ± 1.7 (n = 97) | 1.0 ± 0.0 | 3.8 ± 1.8* |
*P < 0.05 (t test).