Evaluation of tissue oxygen measurements for flap monitoring in an animal model |
| |
Authors: | Bonde Christian Holstein-Rathlou Niels-Henrik Elberg Jens |
| |
Institution: | Department of Plastic Surgery and Treatment of Burns, Copenhagen University Hospital, Copenhagen, Denmark. |
| |
Abstract: | Tissue oxygen tension (p (ti)O (2)) measurements are common in neurosurgery but uncommon in plastic surgery. We examined this technique as a monitoring method with probe placement in the subcutaneous tissue and addressed the importance of probe placement. Myocutaneous flaps were raised in an animal model and p (ti)O (2) measurements performed at different levels in the subcutaneous fat. Flap artery and vein were occluded until a 50% p (ti)O (2) reduction had occurred (T (1/2)). We found no significant effect of depth ( P > 0.10) on the level of p (ti)O (2). T (1/2)(arterial) was 7.2 minutes and T (1/2)(venous) was 18 minutes. We found no significant relation between intitial levels of p (ti)O (2) and T (1/2). Location of the probe and absolute p (ti)O (2) value is of little relevance for flap monitoring. It is the relative change in p (ti)O (2) that is important. The p (ti)O (2) technique is well suited for monitoring in the subcutaneous tissue and is highly sensitive to changes in both arterial and venous blood flow. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |