Long-Term Results of Intraoral Excision for Submandibular Mixed Tumors

홍용태,김준선,여차동,홍기환 대한이비인후과학회 2019 대한이비인후과학회지 두경부외과학 Vol.62 No.2

Background and Objectives Generally, the benign mixed tumors of the submandibular gland are successfully removed via transcervical approach. Recently, however, an alternative to the standard transcervical approach, such as an intraoral approach, has been reported. The surgical results of intraoral excisions for submandibular mixed tumors are discussed here. Subjects and Method A retrospective review was carried out for 24 patients with submandibular mixed tumors who were past 3 years of follow-up. Surgical morbidities and benefits were studied using these data. Results All patients successfully received an excision of the submandibular gland with tumor via an intraoral approach. Early postoperative complications of temporary lingual sensory paresis were developed in 75% of patients, followed by 54% of patients with temporary limitation of tongue movement. In contrast, there were no permanent paresis. Late complications were developed in two cases of mild deviation of tongue due to scar contracture on the floor of mouth, whereas two cases of tumor recurrence and one case of post-gustatory sweating syndrome were observed after surgery. Conclusion This approach might be safe, if used with proper expertise, for the treatment of submandibular mixed tumors. The main advantages of this approach are that no external scars nor permanent injury are incurred to the related nerves. However, disadvantages are temporary lingual paresis and temporary limitation of tongue movement. Unfortunately, there were two cases showing recurrence after surgery and thus required more follow-up.

The Phonetic Characteristics in Patients of Bilateral Vocal Fold Paralysis Without Tracheotomy

홍용태,박민주,신유정,Phan Huu Ngoc Minh,홍기환 대한이비인후과학회 2017 Clinical and Experimental Otorhinolaryngology Vol.10 No.3

Objectives. Patients with bilateral vocal fold paralysis (BVFP) theoretically have difficulty producing voiceless consonants. However, perceptual studies have revealed clear production of voiceless consonants with good articulation scores in nontracheostomized patients. The purpose of this study was to clarify the production of voiceless stops during articulation in patients with BVFP compared to normal speakers. Methods. The perceptual, acoustic, and aerodynamic characteristics of patients with BVFP and those with normal speech were investigated with special reference to voiceless stop consonants. Test words were prepared to place the stop consonants in different phonological environments, and were all nonsense words. Results. The patients with BVFP perceptually produced the three types of stops successfully. However, they acoustically varied voice onset time to produce phonetically representative stops but decreased voice onset time of /ph/ and /p/ compared to those of normal speakers. These patients may properly control air pressure to produce the three types of stop consonants similar to normal speakers. Conclusion. The patients with BVFP realized the distinctions between the three types of stops similar to the normal speakers. Although vocal mobility was absent in the patients with BVFP, voice onset time, vowel duration, closure duration, and air pressure were similar to those of normal speakers.

A Case of Ectopic Lingual Thyroid with Situs Inversus Totalis

홍용태,오종석,윤연섭,양윤수,홍기환 대한갑상선학회 2013 International Journal of Thyroidology Vol.6 No.2

Situs inversus totalis (SIT) is a rare congenital condition in which the viscera are transposed as a mirror of normal physiologic arrangement. We describe a rare case of lingual thyroid associated with SIT. A 64-year-old female who was diagnosed with SIT, visited our clinic due to pharyngeal foreign body sensation. Physical examination revealed a 2.5× 2.5×2.0 cm sized, pinkish, round mass in the base of the tongue. Computed tomography suggested the diagnosis of lingual thyroid. She has been on regular follow up with levothyroxine therapy. To our best knowledge, this is the first case of lingual thyroid (LT) associated with SIT. The literature is reviewed and clinical features about LT and SIT are presented.

Which Plosive Consonant Is More Useful for the Aerodynamic Analysis of Pathologic Voice?

홍용태,phan huu ngoc minh,홍기환 대한이비인후과학회 2020 Clinical and Experimental Otorhinolaryngology Vol.13 No.2

Objectives. Both acoustic and aerodynamic analyses are essential to evaluate the phonetic characteristics of voice pathology. The purpose of the study is to determine the magnitude of their correlation with the different types of bilabial plosive consonants. Methods. A controlled prospective study of 35 patients diagnosed with unilateral vocal fold paralysis was performed. The sustained vowel /a/ and bilabial voiceless consonants were used. Three common acoustic parameters were measured from a sustained vowel /a/ and aerodynamic parameters from a set of syllables /pi/, /phi/, and /p’i/. We determined the correlation coefficients between acoustic and aerodynamic measurements for the bilabial plosive consonants /pi/, /phi/, and /p’i/. Results. The mean values of acoustic parameters were higher than the thresholds of pathology. The mean values of aerodynamic parameters varied according to the types of consonants. The correlation between acoustic and aerodynamic parameters was significantly larger with the consonant /phi/ compared with the consonants /p’/ and /p/. The magnitudes of correlation were higher with the consonant /phi/ compared with the consonants /p’/ and /p/. Conclusion. The plosive consonant /phi/ may represent a more valuable investigative consonant than the consonants /p/ or/p’/ for aerodynamic analysis of voice pathology, especially in patients with unilateral vocal fold paralysis.

Huge Subglottic Polyp Treated with Tracheotomy and Laryngofissure

홍용태,여차동,홍기환,Hong, Yong Tae,Yeo, Cha Dong,Hong, Ki Hwan The Korean Society of Laryngology 2017 대한후두음성언어의학회지 Vol.28 No.1

Vocal polyps are benign laryngeal lesions which arise from the Reinke's space abd hoarseness is the most common symptom. However, airway compromised is rarely presented in the vocal polyp. A rare case of large subglottic polyp causing dyspnea is reported. Tracheostomy was performed under local anesthesia and then the mass was resected under general anesthesia using a laryngofissure approach. The dyspnea and hoarseness disappeared after surgery immediately. The histopathological findings indicated a diagnosis of vocal cord polyp with chronic inflammatiuon. We consider that tracheostomy is the safest and most useful procedure to guarantee the upper airway in cases of large vocal polyp showing dyspnea. We hereby report a case of huge subglottic polyp in which a tracheostomy and laryngofissure was required for removing the subglottic mass successfully.

Cardiovocal (Ortner's) Syndrome with Injection Laryngoplasty

홍용태,한소라,임석태 대한이비인후과학회 부산,울산,경남 지부회 2022 임상이비인후과 Vol.33 No.2

Ortner’s syndrome is an uncommon clinical condition characterized by hoarseness caused by recurrent laryngeal nerve (RLN) palsy in cardiovascular illness. A series of three cases of Ortner’s syndrome involving the RLN was collected, and the cases were treated with injection laryngoplasty. We evaluated the cardiovascular abnormalities, status of vocal fold paralysis, and voice outcome after injection laryngoplasty. The causes in these three cases of Ortner’s syndrome were a sac-like aneurysm of the aortic arch combined with an intramural thrombus, an intramural hematoma of the aortic arch, and a dissection-like giant aneurysm in the aortic arch directed inferiorly. All patients received an injection laryn- goplasty using hyaluronic acid and their voice was improved after injection laryngoplasty. The possibility of cardiovocal syndrome should be kept in mind in cardiovascular disease patients with hoarseness. Injection laryngoplasty can be easily performed for achieving proper production of voice in a clinic setting.

구강 내시경 갑상선 수술의 이점 및 한계점

홍용태 대한이비인후과학회 2023 대한이비인후과학회지 두경부외과학 Vol.66 No.1

Transoral endoscopic thyroidectomy (TOET) is the recent remote access approach whichleaves no cutaneous scar in the body. It has advantages in minimize the surgical dissection,could perform total thyroidectomy and central lymph node dissection easily under a good surgicalview. TOET has gained popularity in both the East and Western countries since the firstlarge series report by Dr. Anuwong in 2016. In this article we described and critically analyzethe indications and contraindications, advantages and limitations, landmarks for recurrent laryngealnerve and strategies for superior pole dissection in transoral thyroidectomy.

Robotic Modified Radical Neck Dissection Through the Bilateral Axillary Breast Approach

홍용태,우승훈 대한이비인후과학회 2021 Clinical and Experimental Otorhinolaryngology Vol.14 No.1

.

Aberrant Carotid Artery Associated with Throat Discomfort and Retropharyngeal Mass

홍용태,김솔,김민지,홍기환 대한후두음성언어의학회 2020 대한후두음성언어의학회지 Vol.31 No.1

We present four cases of aberrant carotid arteries manifesting as pharyngeal masses with throat discomfort. The symptoms of this anomaly are very similar to those of laryngopharyngeal reflux or globus pharyngeus. The identification of this anomalous artery is essential for the head and neck surgeon because the anomaly frequently manifests as a symptomatic pulsatile mass in the pharynx. All patients complained of foreign body sensation in the throat and showed protrusion of the posterolateral pharyngeal wall anteromedially. CT scans demonstrated that there were two cases involving the right common carotid artery (CCA) and two cases involving both CCAs in the retropharyngeal space. As conclusion, the aberrant course of the artery can occur on both sides of CCAs, and it can manifest as a pharyngeal mass. When the patients complain of foreign body sensation in the throat without any other abnormal findings in the pharynx, we should consider the possibility that it may be due to the aberrant course of the CCA and its bifurcations in the retropharyngeal space.

An Unusual Metastasis of Posterior Neck and Axillary Lymph Nodes from Nasopharyngeal Carcinoma

홍용태(Yong Tae Hong),Phan Huu Ngoc Minh,홍기환(Ki Hwan Hong) 대한두경부종양학회 2016 대한두경부 종양학회지 Vol.32 No.2

비인강암은 비인강상피에 발생한 암으로 경부전이 및 간, 폐, 뼈 등의 원격전이가 흔히 나타난다. 본 증례에서는 제 4기 병기를 가진 비인강암환자에서 항암 화학요법 및 방사선 치료 후 매우 드물게 후경부 및 액와 림프절 전이를 보인 환자를 보고하는 바이다. 진행된 병기를 보이는 비인강암 환자는 방사선 치료 후 피부전이가 종종 나타나는 현상이나 후경부 림프절 전이는 흔치 않다. 특히 액와 림프절 전이는 비인강암에서 거의 전이를 보이지 않으나 본 증례에서는 매우 드물게 액와 림프절 전이를 보여 보고하는 바이다.