レーザードップラー血流計を用いた顔面および口腔の血流計測について : 第2報体位変化による顔面血流変化

概要

論文の詳細を見る
The laser doppler flowmeter was developed by Stern in 1975 and applied to practical use by Nilsson et al. in 1980. Since then it has been used in various fields of medicine. The laser doppler flowmeters primary advantages are that it is noninvasive and can monitor the blood flow continuously and rapidly. The authors used a laser doppler flowmeter (a product of PERMED Co., Sweden; PERIFLUX PF 2 B; hereinafter abbreviated as PLDF) to continuously monitor the change in the facial peripheral blood flow (i.e., PERIFLUX blood flow; herein-after abbreviated as PBF) due to changes in the body position of patients in a dental chair, since such changes are unavoidable during the course of dental treatment.<BR>A change from the sitting position to the supine position caused an increase in PBF in 19 of 20 patients. In terms of the mean value per minute, PBF was about 25% larger in the supine position; the increase was 63% immediately after the change, 47% after 4 sec and 36% after 8 sec, all of which were statistically significant changes. After 60 sec, PBF returned to a level about 10% higher than the initial level in the sitting position.