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Blood gas analyses in doubly-vascularised free jejunal transfers.
MedLine Citation:
PMID:  20338673     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The vascular supercharge (additional microvascular anastomosis) has rarely been used for free flaps, and the blood circulation in the transferred tissue has not been recorded. We have made double vascular anastomoses during free jejunal transfer to reduce the possibility of loss of the flap from vascular occlusion. To evaluate the efficacy of additional arterial and venous anastomoses to improve the circulation in the transferred tissue, we analysed the results of blood gas measurements including venous partial pressure of oxygen (pO(2)) and carbon dioxide (pCO(2)) from the distal arcade vein. The free jejunal transfer was made using two pairs of arterial and venous anastomoses. Blood gas concentrations were analysed in samples drawn from the vein in the jejunal arcade before harvest, after the anastomosis of one paired artery and vein, after an additional arterial anastomosis, and after anastomoses of two pairs of artery/vein. The results showed that the venous pCO(2) was not changed by increasing the number of anastomosed vessels. The venous pO(2) was raised both by an additional arterial anastomosis and by two pairs of anastomoses, compared with that at the other two time points measured (p=0.04, p=0.02, respectively). An additional arterial anastomosis seemed to have more effect on the pO(2) than an additional artery/vein pair. Additional arterial and venous supercharging therefore has a similar effect on hyperbaric oxygenation. This effect is mainly caused by arterial supercharging.
Authors:
Toshiaki Numajiri; Yoshihiro Sowa; Kenichi Nishino; Hitoshi Fujiwara; Hiroshi Nakano; Taketoshi Shimada; Shigeru Nakai; Yasuo Hisa
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Publication Detail:
Type:  Journal Article     Date:  2010-03-24
Journal Detail:
Title:  The British journal of oral & maxillofacial surgery     Volume:  49     ISSN:  1532-1940     ISO Abbreviation:  Br J Oral Maxillofac Surg     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405235     Medline TA:  Br J Oral Maxillofac Surg     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  112-5     Citation Subset:  D; IM    
Copyright Information:
Copyright © 2010 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Plastic and Reconstructive Surgery, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan.
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