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- Document type:
- Journal Article; Proceedings Paper
- Author(s):
- Fleischmann, E; Kurz, A; Niedermayr, M; Schebesta, K; Kimberger, O; Sessler, DI; Kabon, B; Prager, G
- Title:
- Tissue oxygenation in obese and non-obese patients during laparoscopy.
- Abstract:
- BACKGROUND: Wound infection risk is inversely related to subcutaneous tissue oxygenation, which is reduced in obese patients and may be reduced even more during laparoscopic procedures. METHODS: We evaluated subcutaneous tissue oxygenation (PsqO(2)) in 20 patients with a body mass index (BMI) > or=40 kg/m(2) (obese group) and 15 patients with BMI <30 kg/m(2) (non-obese group) undergoing laparoscopic surgery with standardized anaesthesia technique and fluid administration. Arterial oxygen tension was maintained near 150 mmHg. PsqO(2) was measured from a surrogate wound on the upper arm. RESULTS: A mean FIO(2) of 51% (13%) was required in obese patients to reach an arterial oxygen tension of 150 mmHg; however, a mean FIO(2) of only 40% (7%) was required to reach the same oxygen tension in non-obese patients (P=0.007). PsqO(2) was significantly less in obese patients: 41 (10) vs 57 (15) mmHg (P<0.001). CONCLUSION: Obese patients having laparoscopic surgery require a significantly greater FIO(2) to reach an arterial oxygen tension of about 150 mmHg than non-obese patients; they also have significantly lower subcutaneous oxygen tensions. Both factors probably contribute to an increased infection risk in obese patients.
- Journal title abbreviation:
- Obes Surg
- Year:
- 2005
- Journal volume:
- 15
- Journal issue:
- 6
- Pages contribution:
- 813-9
- Language:
- eng
- Fulltext / DOI:
- doi:10.1381/0960892054222867
- Pubmed ID:
- http://view.ncbi.nlm.nih.gov/pubmed/15978153
- Print-ISSN:
- 0960-8923
- TUM Institution:
- Klinik und Poliklinik für Psychiatrie und Psychotherapie
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