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喉部病变与其局部微循环改变有重要关系。作者应用~(51)Cr放射性生物微球技术测量兔喉和气管血流,观察了扩血管药物维拉帕米对喉和气管血流量的影响。结果表明:①生物微球技术对测量喉和气管各部位血流量是一种简便、可靠的实验方法。②维拉帕米组平均血流量[(0.91±0.26ml)/(g·min)]与对照组[(0.45±0.28ml)(g.min)] 比较有显著差异(P<0.01),说明维拉帕米对喉气管血管有扩张作用,可增加局部血流量。③左右喉部、气管各段血流量无明显差异。
Laryngeal lesions and its changes in the local microcirculation has an important relationship. The authors measured the laryngeal and tracheal blood flow using ~ (51) Cr radioactive microspheres technique and observed the effect of vasopalmil, a vasodilator drug, on laryngeal and tracheal blood flow. The results showed that: (1) Bio-microsphere technology is a simple and reliable experimental method for measuring blood flow in various parts of larynx and trachea. ② The average blood flow in the verapamil group [(0.91 ± 0.26ml / g · min)] was significantly different from that in the control group (0.45 ± 0.28ml) (g · min) (P <0.01) Verapamil on the laryngotracheal vascular dilatation, can increase the local blood flow. ③ around the throat, tracheal blood flow no significant difference.