Benutzer: Gast  Login
Dokumenttyp:
journal article 
Autor(en):
Fleischmann, E; Kurz, A; Niedermayr, M; Schebesta, K; Kimberger, O; Sessler, DI; Kabon, B; Prager, G 
Titel:
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. 
Zeitschriftentitel:
Obes Surg 
Jahr:
2005 
Band / Volume:
15 
Heft / Issue:
Seitenangaben Beitrag:
813-9 
Sprache:
eng 
Print-ISSN:
0960-8923 
TUM Einrichtung:
r Psychiatrie und Psychotherapie