[The related factors analysis of difficult laryngeal exposure under retaining laryngoscope].

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[The related factors analysis of difficult laryngeal exposure under retaining laryngoscope].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2015 Sep;29(17):1519-21

Authors: Wang J, Hu Y, Wang D, Zhao G, Li X, Li Y

Abstract
OBJECTIVE: To analyze the related factors of difficult laryngeal exposure under retaining laryngoscope.
METHOD: We did a retrospective analysis of 287 retaining laryngoscope surgery patients' clinical datas to observe the relationship between difficult glottis exposure and patients' gender, degree of mouth opening, BMI, neck circumference, head and neck flexion, TMD, HMD and SMD.
RESULT: By ROC curve analysis, we determine the optimal threshold for TMD was 7.35 cm, HMD was 6.33 cm, SMD was 14.75 cm. Univariate analysis showed that gender, and glottis exposure had no significant correlation with difficult laryngeal exposure under retaining laryngoscope. Degree of mouth opening, BMI, neck circumference, head and neck flexion, TMD, HMD and SMD had correlation with difficult laryngeal exposure. Multivariate analysis showed that neck circumference, head and neck flexion, TMD, SMD were independent factors of difficult laryngeal exposure under retaining laryngoscope.
CONCLUSION: Measurement of neck circumference, head and neck flexion, TMD, SMD before the operation is important for the prediction of difficult laryngeal exposure under retaining laryngoscope.

PMID: 26647534 [PubMed - indexed for MEDLINE]

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