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Laryngeal reinnervation by ansa cervicalis nerve implantation for unilateral vocal cord paralysis in humans.
J Am Coll Surg. 2007 Jan; 204(1):64-72.JA

Abstract

BACKGROUND

Ansa cervicalis (AC)-recurrent laryngeal nerve anastomosis (RLN) is usually not desirable for correction of paralytic dysphonia when it is difficult to find a viable distal stump of the recurrent laryngeal nerve. Nerve implantation of the thyroarytenoid muscle with the ansa cervicalis is a simple alternative method.

STUDY DESIGN

Ten patients with unilateral vocal cord paralysis were prospectively designed to receive nerve implantation. A minimum period of 12 months after onset of paralysis was allowed to elapse to permit possible spontaneous reinnervation or compensation. Patients were followed long enough (at least 2 years) to determine if the procedure was successful. All patients were subjected to preoperative and postoperative voice recording, acoustic analysis, and videolaryngoscopy. Some of them underwent laryngeal electromyography.

RESULTS

Ten patients underwent nerve implantation of the thyroarytenoid muscles by using the ansa cervicalis, and 8 of 10 (80%) had improved phonatory quality. Laryngeal electromyography showed that the procedure produced satisfactory reinnervation of the thyroarytenoid muscle.

CONCLUSIONS

Nerve implantation of the thyroarytenoid muscle by the anso cervicalis is a simple and efficient alternative to nerve transfer if dense scarring at the cricothyroid articulation and lack of a viable distal stump of the recurrent laryngeal nerve preclude the procedure of nerve transfer. But careful selection of the appropriate candidate seems to be the earliest prerequisite for a successful procedure.

Authors+Show Affiliations

Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17189114

Citation

Su, Wan-Fu, et al. "Laryngeal Reinnervation By Ansa Cervicalis Nerve Implantation for Unilateral Vocal Cord Paralysis in Humans." Journal of the American College of Surgeons, vol. 204, no. 1, 2007, pp. 64-72.
Su WF, Hsu YD, Chen HC, et al. Laryngeal reinnervation by ansa cervicalis nerve implantation for unilateral vocal cord paralysis in humans. J Am Coll Surg. 2007;204(1):64-72.
Su, W. F., Hsu, Y. D., Chen, H. C., & Sheng, H. (2007). Laryngeal reinnervation by ansa cervicalis nerve implantation for unilateral vocal cord paralysis in humans. Journal of the American College of Surgeons, 204(1), 64-72.
Su WF, et al. Laryngeal Reinnervation By Ansa Cervicalis Nerve Implantation for Unilateral Vocal Cord Paralysis in Humans. J Am Coll Surg. 2007;204(1):64-72. PubMed PMID: 17189114.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Laryngeal reinnervation by ansa cervicalis nerve implantation for unilateral vocal cord paralysis in humans. AU - Su,Wan-Fu, AU - Hsu,Yaw-Don, AU - Chen,Hsin-Chien, AU - Sheng,Hwa, PY - 2006/06/28/received PY - 2006/08/01/revised PY - 2006/08/18/accepted PY - 2006/12/26/pubmed PY - 2007/2/7/medline PY - 2006/12/26/entrez SP - 64 EP - 72 JF - Journal of the American College of Surgeons JO - J Am Coll Surg VL - 204 IS - 1 N2 - BACKGROUND: Ansa cervicalis (AC)-recurrent laryngeal nerve anastomosis (RLN) is usually not desirable for correction of paralytic dysphonia when it is difficult to find a viable distal stump of the recurrent laryngeal nerve. Nerve implantation of the thyroarytenoid muscle with the ansa cervicalis is a simple alternative method. STUDY DESIGN: Ten patients with unilateral vocal cord paralysis were prospectively designed to receive nerve implantation. A minimum period of 12 months after onset of paralysis was allowed to elapse to permit possible spontaneous reinnervation or compensation. Patients were followed long enough (at least 2 years) to determine if the procedure was successful. All patients were subjected to preoperative and postoperative voice recording, acoustic analysis, and videolaryngoscopy. Some of them underwent laryngeal electromyography. RESULTS: Ten patients underwent nerve implantation of the thyroarytenoid muscles by using the ansa cervicalis, and 8 of 10 (80%) had improved phonatory quality. Laryngeal electromyography showed that the procedure produced satisfactory reinnervation of the thyroarytenoid muscle. CONCLUSIONS: Nerve implantation of the thyroarytenoid muscle by the anso cervicalis is a simple and efficient alternative to nerve transfer if dense scarring at the cricothyroid articulation and lack of a viable distal stump of the recurrent laryngeal nerve preclude the procedure of nerve transfer. But careful selection of the appropriate candidate seems to be the earliest prerequisite for a successful procedure. SN - 1072-7515 UR - https://www.unboundmedicine.com/medline/citation/17189114/Laryngeal_reinnervation_by_ansa_cervicalis_nerve_implantation_for_unilateral_vocal_cord_paralysis_in_humans_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1072-7515(06)01586-9 DB - PRIME DP - Unbound Medicine ER -