To validate the accuracy and consistency of respiratory inductive plethysmography (RIP) in measuring tidal volume after an overnight sleep, tidal volumes of 18 patients with suspected sleep disordered breathing and 8...To validate the accuracy and consistency of respiratory inductive plethysmography (RIP) in measuring tidal volume after an overnight sleep, tidal volumes of 18 patients with suspected sleep disordered breathing and 8 normal volunteers were measured simultaneously with RIP (V TRIP ) and with an ultrasonic airflow meter (V TUFM ) before and after an unstrained overnight sleep on supine and lateral decubitus. The bias of the V TRIP was expressed as (V TRIP V TUFM )/ V TUFM ·100 %, limits of agreement between V TRIP and V TUFM was measured by averaged bias ±2 s . Results showed that in normal subjects, the bias of RIP before and after overnight sleep was precise and consistent in both supine (0.7 % and -1.6 %) and lateral decubitus (3.7 % and -0.56 %). In these patients, the bias of RIP before and after sleep in supine also remained small (1.9 % and 1.7 %), but it became larger in lateral decubitus (24.5 % and 20.4 %) and 11.5 % exceeded the limits of agreement observed in the evening. The patients′ body mass indices (BMI) were higher than those of normal subjects (median 34.2 vs. 27.8 kg/m 2). Pooled data showed that the bias of V TRIP in the morning on lateral decubitus but not on supine was correlated to BMI (Spearman R=0.32, n =52, P =0.02). Thus, we were led to conclude that the accuracy of V TRIP overnight was precise and consistent in normal subjects, but the deviation of V TRIP measured on lateral decubitus in patients especially in those with excessive obesity was greater, thus, the method should not be used for quantitative determination.展开更多
[提示]只要你是脑力劳动者,或是本科生,硕士生,博士生,此文对你的作用绝对不可小看。本文的标题,一语道破了文章之主旨:思维之创造性来自充足的睡眠: Problem-solving appear to be directly linked to adequate sleep. Sleep is often ...[提示]只要你是脑力劳动者,或是本科生,硕士生,博士生,此文对你的作用绝对不可小看。本文的标题,一语道破了文章之主旨:思维之创造性来自充足的睡眠: Problem-solving appear to be directly linked to adequate sleep. Sleep is often the best medicine. Creativity also appears to be enhanced in the process. Sleep can help to turn yesterday’s problem into today’s solution. 偌大校园,子夜时分,寝室里照样灯火通明,学子仍然谈笑风生,黎明时刻,寝室里照样鼾声四起,学子仍然独步梦境,这是何等令人揪心的场景!须知,你们的思维创造力就流失于此!展开更多
文摘To validate the accuracy and consistency of respiratory inductive plethysmography (RIP) in measuring tidal volume after an overnight sleep, tidal volumes of 18 patients with suspected sleep disordered breathing and 8 normal volunteers were measured simultaneously with RIP (V TRIP ) and with an ultrasonic airflow meter (V TUFM ) before and after an unstrained overnight sleep on supine and lateral decubitus. The bias of the V TRIP was expressed as (V TRIP V TUFM )/ V TUFM ·100 %, limits of agreement between V TRIP and V TUFM was measured by averaged bias ±2 s . Results showed that in normal subjects, the bias of RIP before and after overnight sleep was precise and consistent in both supine (0.7 % and -1.6 %) and lateral decubitus (3.7 % and -0.56 %). In these patients, the bias of RIP before and after sleep in supine also remained small (1.9 % and 1.7 %), but it became larger in lateral decubitus (24.5 % and 20.4 %) and 11.5 % exceeded the limits of agreement observed in the evening. The patients′ body mass indices (BMI) were higher than those of normal subjects (median 34.2 vs. 27.8 kg/m 2). Pooled data showed that the bias of V TRIP in the morning on lateral decubitus but not on supine was correlated to BMI (Spearman R=0.32, n =52, P =0.02). Thus, we were led to conclude that the accuracy of V TRIP overnight was precise and consistent in normal subjects, but the deviation of V TRIP measured on lateral decubitus in patients especially in those with excessive obesity was greater, thus, the method should not be used for quantitative determination.
文摘[提示]只要你是脑力劳动者,或是本科生,硕士生,博士生,此文对你的作用绝对不可小看。本文的标题,一语道破了文章之主旨:思维之创造性来自充足的睡眠: Problem-solving appear to be directly linked to adequate sleep. Sleep is often the best medicine. Creativity also appears to be enhanced in the process. Sleep can help to turn yesterday’s problem into today’s solution. 偌大校园,子夜时分,寝室里照样灯火通明,学子仍然谈笑风生,黎明时刻,寝室里照样鼾声四起,学子仍然独步梦境,这是何等令人揪心的场景!须知,你们的思维创造力就流失于此!
