| Relationship between oral tissue blood flow and oxygen tension in rabbit. | |
| | |
MedLine Citation:
|
PMID: 19815995 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Several studies have reported tissue blood flow and tissue oxygen tension during anesthesia, whereas there are few reports that discuss the relationship between tissue blood flow and tissue oxygen tension. The goal of this study was to investigate the relationship between these two variables before and after stellate ganglion block (SGB). We utilized 8 male Japan White rabbits. Anesthesia was maintained with propofol. For SGB, 0.2 ml of 1% lidocaine was injected and changes in mandibular bone marrow blood flow (BBF) and mandibular bone marrow oxygen tension (PbO(2)) were observed (Group B). After the observed variables completely recovered, 0.2 ml of 1% lidocaine was again injected and changes in masseter muscle blood flow (MBF) and masseter muscle oxygen tension (PmO(2)) were observed (Group M). The observed variables were hemodynamic parameters, common carotid artery blood flow, L (left side)-BBF, R (right side)-BBF, L-PbO(2), R-PbO(2), L-MBF, R-MBF, L-PmO(2) and R-PmO(2). In both groups, positive correlations (r=0.99; y=0.68x - 3.49 in Group B and r=0.99; y=0.62x + 0.47 in Group M) were observed when tissue blood flow was set at the X-axis and tissue oxygen tension at the Y-axis. In contrast, when tissue blood flow was set at the Y-axis and tissue oxygen tension at the X-axis, two regression lines almost overlapped (y=1.47x + 5.12 in Group B and y=1.59x - 0.28 in Group M). Therefore, it is estimated that tissue blood flow increases by approximately 15 ml/min/100g when tissue oxygen tension increases by 10 mmHg. In conclusion, there is a positive correlation between tissue blood flow and tissue oxygen tension. Changes in tissue oxygen tension should reflect the increase or decrease in tissue blood flow. |
| | |
Authors:
|
Yui Terakawa; Tatsuya Ichinohe; Yuzuru Kaneko |
Related Documents
:
|
1739685 - Finger blood flow in patients with low tension glaucoma and primary open-angle glaucoma. 14575 - Effect of adrenalectomy in the dog on blood gas tensions and oxygen content. 6705005 - Tissue oxygen tension in normal and ischaemic human skin. 8945885 - Regulation of oxygen diffusion in hypoxic isolated cardiac myocytes. 21292845 - The interdependent contributions of gravitational and structural features to perfusion ... 11120365 - 40 mhz doppler characterization of umbilical and dorsal aortic blood flow in the early ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Bulletin of Tokyo Dental College Volume: 50 ISSN: 0040-8891 ISO Abbreviation: Bull. Tokyo Dent. Coll. Publication Date: 2009 May |
Date Detail:
|
Created Date: 2009-10-09 Completed Date: 2009-12-30 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7505414 Medline TA: Bull Tokyo Dent Coll Country: Japan |
Other Details:
|
Languages: eng Pagination: 83-90 Citation Subset: D |
Affiliation:
|
Department of Dental Anesthesiology, Tokyo Dental College, Mihama-ku, Chiba, Japan. terakawayui@tdc.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Anesthetics, Intravenous
/
administration & dosage Anesthetics, Local / administration & dosage Animals Bone Marrow / blood supply* Carotid Artery, Common Lidocaine / administration & dosage Male Mandible / blood supply Masseter Muscle / blood supply* Nerve Block / methods* Oxygen / blood*, physiology Partial Pressure Propofol / administration & dosage Rabbits Regional Blood Flow Stellate Ganglion / drug effects |
| Chemical | |
Reg. No./Substance:
|
0/Anesthetics, Intravenous; 0/Anesthetics, Local; 137-58-6/Lidocaine; 2078-54-8/Propofol; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Influence of mandibular fixation method on stability of the maxillary occlusal plane after occlusal ...
Next Document: Reestablishment of occlusion with prosthesis and composite resin restorations.