Blood oxygen saturation was measured with Model 9500 instrument in the patients preoperatively and postoperatively at 7 am for 7 days.

 
  • 采用国产Model 9500型指夹式血氧饱和度测量仪,监测2种术式患者手术前1 d及术后连续7 d早晨7:00血氧饱和度的变化。
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