scholarly journals Preservation of Internal Branch of Superior Laryngeal Nerve during Surgery for Hypopharyngeal Cancer

2020 ◽  
pp. 014556132094947
Author(s):  
Wei Sun ◽  
Wei-Ping Wen ◽  
Xiao-Lin Zhu
Keyword(s):  
Squamous Cell Carcinoma ◽  
Superior Laryngeal Nerve ◽  
Posterior Wall ◽  
Hypopharyngeal Cancer ◽  
Laryngeal Nerve ◽  
Internal Wall ◽  
Main Trunk ◽  
Internal Branch ◽  
Cough Reflex ◽  
Oral Diet

Objectives: This study was performed to evaluate the significance of intraoperative preservation of the internal branch of the superior laryngeal nerve (ibSLN) during surgery for hypopharyngeal squamous cell carcinoma (HSCC). Methods: Twelve patients with HSCC underwent surgery between January 2017 and December 2018. Sensation in the hypopharyngeal mucosa was tested using a flexible laryngeal endoscope on postoperative day 5. Results: Surgeries were successfully performed in 10 patients with HSCC arising from the internal wall of the pyriform fossa and in 2 patients with HSCC arising from the posterior wall of the hypopharynx. The main trunk of the ibSLN was preserved in all patients. Testing of sensation in the hypopharyngeal mucosa revealed the presence of the cough reflex in all patients. All patients achieved a full normal oral diet at a median of 8.5 days (range, 6-11 days) and removal of the tracheal tube at a median of 10 days (range, 7-12 days). Conclusions: Our results showed that preservation of the ibSLN during surgery for HSCC is feasible and important in the recovery of sensation in the hypopharyngeal mucosa.

scholarly journals Surgical anatomy of the internal branch of the superior laryngeal nerve

2006 ◽  
Vol 15 (9) ◽  
pp. 1320-1325 ◽  
Author(s):  
Amac Kiray ◽  
Sait Naderi ◽  
Ipek Ergur ◽  
Esin Korman
Keyword(s):  
Superior Laryngeal Nerve ◽  
Surgical Anatomy ◽  
Laryngeal Nerve ◽  
Internal Branch

Aberrant Reinnervation of the Internal Branch of the Superior Laryngeal Nerve after Total Laryngectomy

1994 ◽  
Vol 110 (1) ◽  
pp. 122-125
Author(s):  
Paul A. Levine ◽  
Daniel G. Deschler ◽  
Jeffrey A. McKenna ◽  
Thomas A. Tami
Keyword(s):  
Total Laryngectomy ◽  
Superior Laryngeal Nerve ◽  
Laryngeal Nerve ◽  
Internal Branch

Anatomy of the internal branch of the superior laryngeal nerve

1999 ◽  
Vol 12 (2) ◽  
pp. 79-83 ◽  
Author(s):  
Robert E. Stephens ◽  
Karen Haas Wendel ◽  
W. Robert Addington
Keyword(s):  
Superior Laryngeal Nerve ◽  
Laryngeal Nerve ◽  
Internal Branch

Laryngeal Phonatory Reflex

1975 ◽  
Vol 84 (2) ◽  
pp. 206-212 ◽  
Author(s):  
Masahiro Tanabe ◽  
Kazutomo Kitajima ◽  
Wilbur J. Gould
Keyword(s):  
Fundamental Frequency ◽  
Computer Analysis ◽  
Control Mechanism ◽  
Superior Laryngeal Nerve ◽  
Acoustic Signals ◽  
Laryngeal Nerve ◽  
Cycle Frequency ◽  
Internal Branch ◽  
Fine Control ◽  
Frequency Changes

The laryngeal phonatory reflex through the internal branch of the superior laryngeal nerve (SLN) was investigated by means of anesthetization of the nerve, after which acoustic signals were subjected to computer analysis to determine how anesthesia affected basic vocal parameters. Results showed that the anesthetization did not affect the abrupt cycle-to-cycle frequency changes and also did not influence the gross control of the fundamental frequency. But slower fluctuation of the fundamental frequency increased following anesthesia. From these results, it is suggested that the anesthetization of the internal branch of the SLN may derange the fine control mechanism of the larynx without affecting overall or gross performance of the phonatory apparatus.

scholarly journals Ultrasound-guided internal branch of superior laryngeal nerve block on postoperative sore throat: A randomized controlled trial

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241834
Author(s):  
Li Zhipeng ◽  
He Meiyi ◽  
Wang Meirong ◽  
Jiang Qunmeng ◽  
Jia Zhenhua ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Sore Throat ◽  
Nerve Block ◽  
Superior Laryngeal Nerve ◽  
Laryngeal Nerve ◽  
Secondary Outcome ◽  
Ultrasound Guided ◽  
Postoperative Sore Throat ◽  
Internal Branch ◽  
Group I

Introduction Ultrasound-guided internal branch of the upper laryngeal nerve block (USG-guided iSLN block) have been used to decrease the perioperative stress response of intubation. It is more likely to be successful than blindly administered superior laryngeal nerve blocks with fewer complications. Here, we evaluated the efficacy of USG-guided iSLN block to treat postoperative sore throat (postoperative sore throat, POST) after extubation. Methods 100 patients, aged from 18 to 60 years old, ASA I~II who underwent general anesthesia and suffered from the moderate to severe postoperative sore throat after extubation were randomized into two groups(50 cases per group). Patients in group S received USG-guided iSLN block bilaterally (60mg of 2% lidocaine, 1.5ml each side), whereas those in group I received inhalation with 100 mg of 2% lidocaine and 1mg of budesonide suspension diluted with normal saline (oxygen flow 8 L /min, inhalation for 15 minutes). The primary outcome were VAS scores in both groups before treatment (T0), 10 min (T1), 30 min(T2), 1h(T3), 2 h(T4), 4h(T5), 8h(T6), 24h(T7), and 48h(T8) after treatment. The secondary outcome were satisfaction scores after treatment, MAP, HR, and SPO2 fromT0 to T8. The adverse reactions such as postoperative chocking or aspiration, cough, hoarseness, dyspnea were also observed in both groups. Results Patients in group S had significantly lower VAS score than that in group I at points of T1 ~ T6 (P < 0.01). HR of group S was lower than that of group I at points of T1 ~ T2and T4 (P < 0.05), and MAP was lower than that of group I at points of T1 ~ T3 (P < 0.05). Satisfaction scores of group S were higher than that of group I (P <0.05), In group S, 2 case (4%) needed to intravenous Flurbiprofen Injection 50 mg to relieve pain; in group I, 13 cases (26%) received Flurbiprofen Injection. 2 case of group S appeared throat numbness after treatment for 3 hours; 2 patients have difficult in expectoration after treatment recovered after 3hour. No serious adverse events were observed in both groups. Conclusion Compared with inhalation, USG-guided iSLN block may effectively relieve the postoperative sore throat after extubation under general anesthesia and provided an ideal treatment for POST in clinical work.

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