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首页> 外文期刊>Anaesthesia and intensive care >Ratio of patient's height to thyromental distance improves prediction of difficult laryngoscopy.
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Ratio of patient's height to thyromental distance improves prediction of difficult laryngoscopy.

机译：患者身高与胸膜距离的比率改善了喉镜检查的难度。

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摘要

Several tests have been proposed to predict difficult laryngoscopy or intubation. The thyromental distance (TMD) is often used for these purposes but this measurement, used alone, is unreliable. This study tested the hypothesis that the ratio of the patient's height to TMD (ratio of height to TMD = RHTMD) would improve the accuracy of predicting difficult laryngoscopy compared with TMD alone. Two hundred and seventy patients were evaluated preoperatively using the TMD and RHTMD. The two tests were compared analyzing the area under the receiver operating characteristic curves (AUC). Difficult laryngoscopy occurred in 16 patients (5.9%). The AUC of RHTMD was significantly greater (P < 0.007) when compared to TMD, indicating a more accurate prediction by the RHTMD. A ratio of 25 for the RHTMD was found to be the optimal cut-off value to predict difficult laryngoscopy. When the sensitivity of both tests was 0.81, the RHTMD had a significantly greater specificity (0.91) than the TMD (0.73). Based on our results, we recommend that the RHTMD should be used instead of the TMD.
机译：已经提出了几种测试来预测困难的喉镜检查或插管。胸膜距离（TMD）通常用于这些目的，但是单独使用该测量方法是不可靠的。这项研究检验了以下假设：与单独使用TMD相比，患者的身高与TMD的比（身高与TMD的比= RHTMD）将提高预测困难喉镜的准确性。术前使用TMD和RHTMD对270例患者进行了评估。比较了两个测试，分析了接收器工作特性曲线（AUC）下的面积。困难的喉镜检查发生在16例患者中（5.9％）。与TMD相比，RHTMD的AUC显着更大（P <0.007），表明RHTMD的预测更为准确。发现RHTMD的比率25是预测困难的喉镜检查的最佳临界值。当两个测试的灵敏度均为0.81时，RHTMD的特异性（0.91）比TMD（0.73）大得多。根据我们的结果，我们建议使用RHTMD代替TMD。

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