Akkuş Şaban, Çorbacıoğlu Şeref Kerem, Çevik Yunsur, Akıncı Emine, Uzunosmanoğlu Hüseyin
Department of Emergency Medicine, Kecioren Training and Research Hospital, Ankara, Turkey.
Department of Emergency Medicine, Kecioren Training and Research Hospital, Ankara, Turkey.
Am J Emerg Med. 2016 Oct;34(10):1959-1962. doi: 10.1016/j.ajem.2016.06.105. Epub 2016 Jul 1.
The purpose of the study is to investigate whether spinal immobilization with a long backboard (LBB) and semirigid cervical collar (CC) at 20° instead of 0° conserve pulmonary functions, including forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and FEV1/FVC ratio.
The study included 56 adult healthy volunteers. Volunteers were randomly divided into 2 groups, and those in the first group (group 1) had LBBs and CCs applied at 0° (n=30), whereas volunteers in the second group (group 2) had LBBs and CCs applied at 20° (n=26). All volunteers were given pulmonary function tests, which included FEV1 and FVC levels and FEV1/FVC ratios, while in the sitting position. Measurements were repeated at 0, 5, and 30 minutes.
Results showed significant decreases in FEV1 and FVC values and FEV1/FVC ratios in group 1 and significant decreases in FEV1 values and FEV1/FVC ratios in group 2 (P<.001). However, FVC values were not decreased in group 2 when compared to basal levels taken while in a sitting position (P=.45). In addition, the study evaluated the amounts of decrease in the FEV1 and FVC levels and the FEV1/FVC ratios (ΔFEV1, ΔFVC, and ΔFEV1/FVC ratio). Results showed that ΔFEV1 values compared to basal levels and levels at 0, 5, and 30 minutes were all lower in group 2 than in group 1. However, ΔFEV1/FVC ratios were similar in both groups.
The results of this and previous studies have shown that traditional spinal immobilization decreases respiratory function, whereas using spinal immobilization at 20° can reduce this decrease in function.
本研究旨在调查使用长背板（LBB）和半刚性颈托（CC）在20°而非0°进行脊柱固定是否能保留肺功能，包括一秒用力呼气量（FEV1）、用力肺活量（FVC）和FEV1/FVC比值。
本研究纳入56名成年健康志愿者。志愿者被随机分为两组，第一组（第1组）以0°应用LBB和CC（n = 30），而第二组（第2组）的志愿者以20°应用LBB和CC（n = 26）。所有志愿者在坐位时均接受肺功能测试，包括FEV1和FVC水平以及FEV1/FVC比值。在0、5和30分钟时重复测量。
结果显示，第1组的FEV1和FVC值以及FEV1/FVC比值显著下降，第2组的FEV1值和FEV1/FVC比值显著下降（P <.001）。然而，与坐位时的基础水平相比，第2组的FVC值没有下降（P = 0.45）。此外，该研究评估了FEV1和FVC水平以及FEV1/FVC比值的下降量（ΔFEV1、ΔFVC和ΔFEV1/FVC比值）。结果显示，与基础水平以及0、5和30分钟时的水平相比，第2组的ΔFEV1值均低于第1组。然而，两组的ΔFEV1/FVC比值相似。
本研究及先前研究的结果表明，传统的脊柱固定会降低呼吸功能，而在20°进行脊柱固定可以减少这种功能下降。
