| Autor: |
Tremper, Kevin K., Konchigeri, Halappa N., Cullen, Bruce F., Kapur, Patricia A., Thangathurai, Duraiyah, Percival, Carlisle |
| Zdroj: |
Journal of Thoracic and Cardiovascular Surgery; July 1984, Vol. 88 Issue: 1 p22-25, 4p |
| Abstrakt: |
Twenty adult patients were monitored with a transcutaneous oxygen tension sensor during one-lung ventilation. Anesthesia was maintained with enflurane-oxygen or isoflurane-oxygen. The transcutaneous oxygen tension values accurately followed the trend of arterial oxygen tension (r = 0.94, n = 96, transcutaneous oxygen tension = 4.8 + 0.78 × arterial oxygen tension). The transcutaneous oxygen tension values averaged 80% of the arterial oxygen tension values (transcutaneous oxygen tension index = transcutaneous oxygen tension/arterial oxygen tension = 0.80 ± 0.18) (mean ± standard deviation). When one-lung ventilation was initiated, there was a progressive drop in transcutaneous oxygen tension which reached a minimum of 19 ± 10 minutes. The mean of the minimum transcutaneous oxygen tension and arterial oxygen tension values was 66 ± 44 torr and 83 ± 43 torr, respectively. This resulted in a mean alveolar-arterial oxygen gradient of 515 ± 152 torr during one-lung ventilation. In eight patients, the arterial oxygen tension fell below 60 torr, 45 ± 9 torr. When two-lung ventilation was resumed, the transcutaneous oxygen tension and arterial oxygen tension values promptly rose to mean values of 342 ± 121 torr and 411 ± 103 torr, respectively in 9 ± 3 minutes. The transcutaneous oxygen tension monitor provided a continuous assessment of the patient’s oxygenation, gave early warning of potentially hazardous hypoxia, and permitted nearly real-time assessment of the efficacy of corrective therapies. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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