Table 4 The first clinical sign of MH cases. Values are number (proportion)
From: Malignant hyperthermia when dantrolene is not readily available
| Frequency (n = 92) | |
|---|---|
| Elevation of end tidal CO2 | 31 (33.7%) |
| Sinus tachycardia | 23 (25.0%) |
| Rapidly increasing temperature | 18 (19.6%) |
| Masseter spasm | 10 (10.9%) |
| Unrecorded | 6 (6.5%) |
| Reduction of oxygen saturation | 4 (4.3%) |
| Reduction of blood pressure | 4 (4.3%) |
| Convulsion | 3 (3.3%) |
| Elevation of blood pressure | 3 (3.3%) |
| Restlessness | 3 (3.3%) |
| Muscular rigidity | 3 (3.3%) |
| Poor muscle relaxation effectiveness | 3 (3.3%) |
| Dark red blood at surgical field | 2 (2.2%) |
| Elevation of muscular tension | 2 (2.2%) |
| Sweating | 2 (2.2%) |
| Elevation of airway resistance | 2 (2.2%) |
| Neck stiffness | 2 (2.2%) |
| Flushed face | 1 (1.1%) |
| Cyanosis of nail beds | 1 (1.1%) |
| Opisthotonos | 1 (1.1%) |
| Hot soda lime canister | 1 (1.1%) |
| Reduction of heart rate | 1 (1.1%) |
| Depression of ST segment in ECG | 1 (1.1%) |
| Cola-colored urine | 1 (1.1%) |
| Excessive bleeding at surgical field | 1 (1.1%) |
| Muscle tremors | 1 (1.1%) |