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在动脉疾病中,温度对下肢的数位缩压的影响
1Department of Physiology, University of Manitoba, Winnipeg, Canada.
Circulation
|March 1, 1992
概括
脚的压力测量对于评估外围动脉疾病至关重要. 在测量过程中保持最佳脚温度可以显著提高测量准确度,从而更好地预测伤口愈合和降低截肢风险.
科学领域:
- 血管医学 血管医学
- 足部医学是一门专业.
- 外围动脉疾病诊断 诊断 外围动脉疾病诊断
背景情况:
- 脚压力是皮肤病变愈合,截肢风险和死亡率的重要指标.
- 与脚压力不同,脚压力受到骨血管不压缩的影响较小.
- 数字压力可能会受到环境温度变化的影响.
研究的目的:
- 为了研究受控的脚温度对脚压力测量的影响.
- 为了确定最佳的温度条件,以准确评估脚压力.
- 为了提高脚压在周围动脉疾病的诊断效用.
主要方法:
- 在77个肢体中,在常规条件下与受控温度 (10°C,30°C和27°C-39°C的增量) 的脚压力进行了比较.
- 使用透水袖口7分钟,以平衡脚和袖口的温度.
- 在温度平衡过程中,血液流动中断时使用带.
主要成果:
- 10°C (34±4 mm Hg) 的平均脚压明显低于常规测量 (57±4 mm Hg) 和30°C (69±4 mm Hg) 的测量.
- 脚的压力随着温度从27°C增加到39°C (p<0.01) 逐渐增加.
- 在30°C时,脚压力高于常规测量时,当初始指甲温度低于30°C时 (p<0.01).
结论:
- 由于数字动脉效应,在较低的温度下,常规脚压力测量可能错误地低.
- 最佳的脚温度 (36°C-39°C) 产生了最高的压力.
- 更温暖的测量温度可以提高评估动脉阻塞严重程度和预测病变愈合的准确性.
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