Abstract | OBJECTIVE: SUBJECTS AND METHODS: We used FC-77 (Sumitomo 3M, Tokyo, Japan) perfluorocarbon and a rat hypoventilation model (room air, 20 breaths/min, a tidal volume of 10 ml/kg). Oxygenated FC-77 was perfused through the small intestine for 4 hours. Rats were allocated to 3 experimental groups according to the perfusion rate and a control group: Group 1 (n=6), 10 ml/min; Group 2 (n=6), 2.5 ml/min; Group 3 (n=6), 0.75 ml/min; Group 4 (n=6) served as a control ( hypoventilation only). Arterial blood samples were drawn every 30 minutes. Standard blood gas analysis was performed. RESULTS: After four hours of perfusion, the PaO2 levels in Groups 1 to 3 were significantly better than Group 4 (p<0.01, Group 1: 141.7 +/- 18.0 mmHg, Group 2: 145.2 +/- 25.1 mmHg, Group 3: 120.5 +/- 21.2 mmHg, Group 4: 67.4 +/- 7.2 mmHg). PaCO2 levels in Groups 1 and 2 were significantly better than Groups 3 and 4 (p<0.01, Group 1: 42.6 +/- 7.2 mmHg, Group 2: 52.1 +/- 7.7 mmHg, Group 3: 78.2 +/- 22.8 mmHg, Group 4: 75.3 +/- 10.3 mmHg). CONCLUSION: In the present settings, 8 ml/kg/min was adequate for oxygenation and CO2 clearance. This approach promises to become another modality for respiratory assistance.
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Authors | Kazutoshi Kotani, Itaru Nagahiro, Hidehiro Nakanishi, Hideaki Mori, Hiroshi Date, Nobuyoshi Shimizu |
Journal | The Japanese journal of thoracic and cardiovascular surgery : official publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai zasshi
(Jpn J Thorac Cardiovasc Surg)
Vol. 53
Issue 10
Pg. 539-44
(Oct 2005)
ISSN: 1344-4964 [Print] Japan |
PMID | 16279584
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Fluorocarbons
- Carbon Dioxide
- Oxygen
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Topics |
- Animals
- Carbon Dioxide
(blood)
- Fluorocarbons
(metabolism)
- Intestines
(blood supply)
- Oxygen
(blood)
- Rats
- Rats, Sprague-Dawley
- Respiratory Insufficiency
(therapy)
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