Sanada H, Nagakawa T, Yamamoto M, Higashidani K, Tsuru H, Sugama J
School of Health Sciences, Kanazawa University, Japan.
Adv Wound Care. 1997 Oct;10(6):29-34.
Laser Doppler flowmetry was used to examine the relationships between skin blood flow and pressure ulcer development. Blood flow in the skin over the iliac and sacral bony prominences was measured intraoperatively in 24 consecutive patients undergoing lengthy surgical procedures. Patients who did not develop pressure ulcers postoperatively had a 500% mean increase in blood flow during the procedure as compared with the preoperative levels. Blood flow levels decreased during surgery in patients who developed pressure ulcers postoperatively. There was no statistical difference in the lengths of surgery between the two groups. These results suggest that the body's failure to increase blood flow in response to extended pressure during surgery may contribute to pressure ulcer development.
激光多普勒血流仪用于检测皮肤血流与压疮形成之间的关系。对24例接受长时间外科手术的连续患者在术中测量了髂骨和骶骨骨性突出部位皮肤的血流。术后未发生压疮的患者在手术过程中的血流平均较术前水平增加了500%。术后发生压疮的患者在手术过程中血流水平下降。两组患者的手术时长无统计学差异。这些结果表明，身体在手术期间未能因长时间受压而增加血流，可能会导致压疮的形成。
