• 한국임상수의학회지
• /
• 제39권6호
• /
• pp.400-404
• /
• 2022

A 3-year-old Thoroughbred gelding presented with left laryngeal hemiplegia with a history of laryngoplasty (tie-back surgery) failure. Postoperative endoscopy revealed no abduction or no inflammatory changes in the left arytenoid cartilage. The owner opted for the horse to undergo partial arytenoidectomy due to failed laryngoplasty. A tracheostomy tube was intubated through a mid-cervical tracheotomy to secure the airway under general anesthesia, and; laryngotomy was performed to access the arytenoid cartilage in dorsal recumbency. A partial arytenoidectomy was performed with endoscopic assistance through the left nostril, and the left arytenoid cartilage was removed, excluding the muscular process. Antibiotic and anti-inflammatory agents were administered postoperatively, and the incision site was cleaned using normal saline and antibiotic ointment twice daily. On the 12th postoperative day, endoscopy revealed redundant corniculate process mucosa at the surgical site, which was removed using rongeur forceps directly through the previous laryngotomy incision. The horse showed no significant complications during the hospitalization. Two months after surgery, the surgical site reportedly recovered with no evidence of granulation tissue. The horse returned to training and racing 3 and 7 months postoperatively, respectively. This is the first case report of a partial arytenoidectomy in a horse in South Korea. In this case, the horse returned to training after partial arytenoidectomy without significant complications, indicating that partial arytenoidectomy could be beneficial for failed laryngoplasty.

• 대한기관식도과학회지
• /
• 제4권2호
• /
• pp.219-224
• /
• 1998

Bilateral vocal cord paralysis can result in severe airway compromise. Over the years a variety of arytenoidectomy procedures have bee described, and one or more of these have been the gold standard for many years. A widely accepted treatment is endoscopic laser total arytenoidectomy. However, vocal results are usually poor. Objective : To evaluate the effect of treatment of endoscopic laser medial partial arytenoidectorny for bilateral vocal cord paralysis Material and Methods : We performed endoscopic medial partial arytenoidceomy with $CO_2$laser for 3 patients with bilateral vocal cord paralysis. The $CO_2$laser is operated with a continuous 7-watt beam in superpulse mode. We compared degree of dyspnea and glottic area of pre-operation with those of post-operation for 3 patients. We analysed aerodynamic study pre-operatively and post-operatively for 1 patient. Results The symptom of dyspnea was improved markedly and the glottic area was widened from 34% to 50% compared with that of pre-operation. The voice quality was slightly decreased. Tracheotomy was not necessary for not-tracheotomized patient and decanulation was possible for tracheotomized patient post-operatively. Cunclusion： The endoscopic laser medial partial arytenoidectomy is a convient and effective method for opening the posterior glottic airway.

• 대한기관식도과학회:학술대회논문집
• /
• 대한기관식도과학회 1987년도 제21차 학술대회 연제순서 및 초록
• /
• pp.16.1-16
• /
• 1987

양측성 정중위 성대마비는 양측 반회신경의 마비나 윤상피열연골관절이 염증이나 외상에 의하여 고정되는 경우에 발생하며 조기에 심한 호흡곤란을 초래하게 되므로 기관절개술을 요하게 되고, 또한 영구적인 기도확보를 목적으로 Woodman(1946), Orton(1948), Thornell(1959), Downey(1968)등의 여러 학자들에 의하여 다양한 방법으로 피열연골에 대한 수술법이 시도되어 왔다. 최근 10년간 본 교실에서 양측성 정중위 성대마비 7례, 양측성 윤상피열연골관절고정 2례에 대하여 endolaryngeal arytenoidectomy (Thornell's method) 6례 , extralaryngeal arytenoidectomy 3례 (Woodman's method l례, Downey's method 2례)를 각각 시행하여 비교적 좋은 성적을 거두었기에 이들을 비교 검토하여 문헌고찰과 함께 보고하는 바이다.

• 대한기관식도과학회:학술대회논문집
• /
• 대한기관식도과학회 1987년도 제21차 학술대회 연제순서 및 초록
• /
• pp.19.1-19
• /
• 1987

피열연골절제술 (arytenoidectomy)은 양측성대마비 환자의 호흡곤란을 해결하기 위한 방법의 하나로서 현재까지 사용되고 있으며, 술식을 대별하면 Woodman등이 시행한 extralaryngeal approach방법과 Thornell등이 시도한 내시경적 피열연골 절제술로 나눌 수 있다. 최근에는 $CO_2$레이저에 의한 내시경적 피열연골절제술이 각광을 받고 있는데 그 장점으로는 첫째, 수술방법이 쉽고, 둘째, 수술시 출혈이 적으며, 세째, 병변부에 기구를 직접 접촉시키지 않고 수술할 수 있어 수술시야를 방해받지 않으며, 네째, 술후 육아조직 발생이 적고, 다섯째, 국소염증 반응이 적어 치유가 빠르다는 점 등이라 할 수 있다. 저자들은 최근 여러 원인에 의해 발생된 양측 성대마비 환자 3례에서 coherent $CO_2$레이저를 이용한 내시경적 피열연골절제술을 시행하여 그 경과가 좋았기에 문헌고찰과 함께 보고하는 바이다.

• 대한후두음성언어의학회지
• /
• 제8권1호
• /
• pp.75-81
• /
• 1997

The clinical investigation was done in the 42 patients with bilateral vocal cord palsy who visited the otorhinolaryngologic department of the Yongdong Severance Hospital during the 10-year period between August 1986 to August 1996. On the sex and age distribution, the ratio of male to female patients was 2.8 : 1 and the age was evenly distributed and average was 46 years old. Of their chief complaints, dyspnea was the most common symptom. Among the position of the paralyzed vocal cords, paramedian position was most common. The most common causes of the bilateral vocal cord palsy was idiopathic Other causes include iatrogenic, prolonged intubation, head ＆ neck trauma, brain tumor, Myasthenia Gravis, and mediastinitis. Our treament results were as follows. Recovery rate of idiopathic bilateral vocal cord palsy was 77.7% and recovery period after bilateral vocal cord palsy was shortened remarkedly after use with steroid. We performed laser arytenoidectomy in patients with irreversible idiopathic vocal cord palsy, neural injury, and cricoarytenoid joint fixation. Decannualtion was possible to be carried out in 86% of the patients and none of complication except for 1 case of aspiration developed. Thus we concluded that it was meaningful surgical treatment of bilateral vocal cord palsy.

• 대한후두음성언어의학회지
• /
• 제20권1호
• /
• pp.36-41
• /
• 2009

Background and Objectives: Topical administration of mitomycin-C (MMC) has been reported to reduce or delay scar formation in airway surgery. However, it is not infrequent to experience recurrent stenosis or adhesion of operative wound even after a meticulous MMC application during the laryngeal surgery. Therefore we aimed to evaluate the effectiveness of repeated postoperative MMC applications and the technical feasibility of MMC applications to the laryngeal wound at an outpatient clinic. Methods: We reviewed medical records of 13 consecutive patients who received office-based MMC applications after laryngeal airway surgery at Samsung Medical Center, Seoul, Korea. The patients were grouped into 3 categories according to the site of surgical wound and the purpose of MMC application; group I : supraglottic stenosis (n=5), group II : cordectomy and arytenoidectomy site granulation prevention (n=3), Group III : laryngeal web prevention (n=5). Outcomes in each group and adverse effects of repeated MMC applications were evaluated. Results: Office-based MMC application was successfully performed one to four times with a week interval for each patient. No significant complications were observed except slightly decreased mucosal wave in one female patient who received 4 times of MMC application at the anterior commissure of vocal fold. Repeated MMC applications at the outpatient clinic resulted in wide or acceptable supraglottic airway in group I, clean wound healing without granulation formation in group II, and negligible or no web formation at the anterior commissure in group III. Conclusion : Office-based topical administration of MMC to the larynx was technically feasible. Postoperative repeated MMC applications were effective to reduce recurrent stenosis or adhesion of supraglottic structures, to prevent granuloma formation after laser arytenoidectomy and glottic web formation after anterior commissure resection.

• 대한기관식도과학회:학술대회논문집
• /
• 대한기관식도과학회 2007년도 제47차 학술대회 초록집
• /
• pp.47-47
• /
• 2007

• 대한후두음성언어의학회지
• /
• 제20권2호
• /
• pp.118-125
• /
• 2009

Bilateral vocal fold immobility (BVFI) is a challenging condition which may result from diverse etiologies including vocal fold paralysis, synkinesis, cricoarytenoid joint fixation, and interarytenoid scar. Most patients present with dyspnea and stridor, but sometimes with a breathy dysphonia. Careful history taking, laryngoscopic evaluation under general anesthesia or awaken status, laryngeal EMG, and imaging studies with CT and/or MRI are helpful for providing a precise diagnosis and planning appropriate managements. In children, congenital neurological disorder is one of the most common etiologies, and spontaneous recovery has been reported in more than 50% of cases. Therefore, observation for more than 6 months while securing the upper airway with tracheostomy if needed is a generally accepted rule before deciding any destructive procedure to be undertaken. In children with advanced posterior glottic stenosis, laryngotracheal reconstruction with rib cartilage graft should be considered. In contrast to children, BVFI most commonly occurs as sequalae of surgical complication in adults. Diverse static or dynamic procedures can be applied; posterior cordotomy, vocal fold lateralization, endoscopic or open arytenoidectomy, arytenoid abduction, and reinnervation, electrical laryngeal pacing, which need to be carefully selected according to each patient's needs and pathophysiology of BVFI.

• 대한기관식도과학회지
• /
• 제5권2호
• /
• pp.182-190
• /
• 1999

OBJECTIVES : To determine the results of posterior cricoid split with costal cartilage graft in the treatment of moderate and severe subglottic stenosis in adults, and to assess the effect of T-tube as a stent in this surgery. PATIENTS AND METHODS : Four adults with moderate and severe subglottic stenosis who underwent posterior cricoid split with costal cartilage graft from 1994 to 1995. Three patients were male and one was female. All of the patients had acquired subglottic stenosis, 2 of whom had a bilateral vocal folds paralysis. The surgical procedure we used included a cricoid lamina split with costal cartilage grafting and T-tube stenting. Arytenoidectomy was a added in 2 patients with bilateral vocal folds paralysis. RESULTS : Three of the 4 patients underwent decannulation, and 1 is still undergoing treatment. 3 patients who underwent decannulation demonstrated marked improvement in their symptoms of airway obstruction and good postoperative voice quality. CONCLUSIONS : The posterior cricoidotomy lumen augmentation with costal cartilage grafting is a safe and effective technique for the treatment of moderate and severe subglottic stenosis in adults and T-tube is a good alternative stenting material for this procedure.

• 대한후두음성언어의학회지
• /
• 제20권1호
• /
• pp.68-70
• /
• 2009

Acromegalic patients can develop mild upper airway obstruction. However, the limitation of both vocal folds mobility developing dyspnea is rare. We report a case with bilateral vocal cord paralysis associated with acromegaly. The patient visited our clinic presenting dyspnea showing bilateral vocal cord hypomobility in laryngoscopy. The patient underwent a tracheostomy and a transsphenoidal resection of the pituitary adenoma. Thereafter, laser cordotomy with medial arytenoidectomy was done for the permanent treatment of glottal obstruction. The tracheotomy canula was successfully removed one month after the surgery.