PMID: 29098260Nov 4, 2017Paper

Applications of ultrasound-guided superior laryngeal nerve block and cricothyroid membrane puncture in conscious endotracheal intubation

Shanghai kou qiang yi xue = Shanghai journal of stomatology
Jun-An WangHong Jiang

Abstract

To explore the clinical value of ultrasound-guided superior laryngeal nerve block and cricothyroid membrane puncture in conscious endotracheal intubation. Thirty ASA classⅠorII patients scheduled for selective surgeries were randomly divided into 2 groups, Group U was ultrasound-guided group (n=15), group A was anatomical location group (n=15). Transnasal tracheal intubation was performed in all patients. In patient of group U, thyrohyoid membrane was shown hyperecho by ultrasound and echoless superior laryngeal artery passed across it. Then local anesthetic was injected into inner side of the artery by ultrasound-guided in-plane technology. The same process was conducted in the contralateral side. The cricothyroid membrane was shown as strong echo by ultrasound and the needle was inserted across the membrane by ultrasound-guided in-plane technology. Local anesthetic was injected for surface anesthesia. In patients of group A, superior horn of thyroid cartilage and horn of hyoid cartilage were identified by palpation of the anatomical structure. Traditional bilateral superior laryngeal nerve block was then performed. Thyroid cartilage and cricoid cartilage were marked by palpation of the anatomical structure and local anestheti...Continue Reading

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