Isoda S, Yano Y, Jin Y, Walters H L, Kondo J, Matsumoto A
First Department of Surgery, Yokhama City University, School of Medicine, Japan.
Ann Thorac Surg. 1995 Mar;59(3):632-7; discussion 638. doi: 10.1016/0003-4975(94)00954-6.
The regional and total blood flow of canine latissimus dorsi muscle flaps (LDMFs) were examined to study the effect of a delay procedure, ligation of the perforators, before complete flap elevation. The regional blood flow of the middle and distal regions of the nondelayed LDMFs was poor and significantly lower than the proximal region at rest. The regional blood flow during the exercise test was improved and significantly higher in the middle (62% increase) and distal regions (187% increase) of the delayed LDMFs as compared with the nondelayed LDMFs. The mean total blood flow of the delayed LDMFs was 14 mL.min-1.100(-1) g at rest, increased to 30 mL.min-1.100(-1) g during exercise tests with intermittent burst electrical stimulation, and was maximal at 40 mL.min-1.100(-1) g immediately after the exercise. The phasic arterial blood flow of the delayed LDMFs was inhibited during contraction at 9 mL.min-1.100(-1) g, whereas it was 44 mL.min-1.100(-1) g during relaxation. In contrast, the phasic venous blood flow was accentuated during contraction to 32 mL.min-1.100(-1) g compared with 16 mL.min-1.100(-1) g during relaxation.
研究延迟手术（即在完全掀起皮瓣前结扎穿支血管）对犬背阔肌皮瓣（LDMFs）局部和总血流量的影响。未延迟的LDMFs中、远端区域的局部血流量较差，静息时显著低于近端区域。与未延迟的LDMFs相比，延迟的LDMFs在运动试验期间局部血流量有所改善，其中部（增加62%）和远端区域（增加187%）显著更高。延迟的LDMFs静息时平均总血流量为14 mL·min-1·100(-1) g，在间歇性爆发性电刺激运动试验期间增加到30 mL·min-1·100(-1) g，运动后立即达到最大值40 mL·min-1·100(-1) g。延迟的LDMFs在收缩时相动脉血流量被抑制，为9 mL·min-1·100(-1) g，而在舒张时为44 mL·min-1·100(-1) g。相比之下，时相静脉血流量在收缩时增强至32 mL·min-1·100(-1) g，而在舒张时为16 mL·min-1·100(-1) g。
