06 December 2022
: Case report 
A Novel Case Report of Iatrogenic Tracheal Rupture Caused by a Laser-Resistant Endotracheal Tube Under Transoral Laser Laryngeal and Nasopharyngeal Surgery
Diagnostic / therapeutic accidents
Yoko Shimamoto1ABDEF*, Michiyoshi Sanuki1ABDEF, Shigetaki Kurita1BE, Masaya Ueki1B, Yoshie Kuwahara1BDOI: 10.12659/AJCR.938357
Am J Case Rep 2022; 23:e938357
Table 1. Blood gas analysis after surgery in the Intensive Care Unit.
| Variables | Normal range | Day 1 | Day 2 | Day 3 | Day 4 | Day 5 | Day 6 |
|---|---|---|---|---|---|---|---|
| pH | 7.35–7.45 | 7.359 | 7.422 | 7.413 | 7.473 | 7.453 | 7.467 |
| PaCO, mmHg | 35–45 | 41.0 | 34.2 | 36.3 | 36.8 | 40.9 | 43.3 |
| PaO, mmHg | 75–100 | 171 | 102 | 117 | 115 | 96.7 | 76.8 |
| HCO, mmol/L | 22–26 | 22.5 | 21.9 | 22.7 | 26.6 | 28.2 | 30.9 |
| Base excess, mmol/L | −2-2 | −2.2 | −1.6 | −1.0 | 3.3 | 4.4 | 6.8 |
| SaO, % | 95–98 | 99.1 | 96.7 | 98.6 | 98.7 | 97.7 | 95.9 |
| Anion gap (K), mmol/L | 10–14 | 10.1 | 6.8 | 6.4 | 9.7 | 8.5 | 9.5 |
| Lactate, mmol/L | 0.5–1.6 | 2.1 | 1.4 | 1.4 | 0.7 | 0.9 | 1.3 |
| FiO | 0.5 | 0.5 | 0.5/0.4 | 0.4 | 0.4 | 0.4 | |
| Day 1 indicates the date of surgery. The patient was extubated on Day 6. | |||||||