1.Introduction of Multidisciplinary Team Approach for Head and Neck Cancer: Patient Satisfaction
Min Kyu PARK ; Chang Myeon SONG ; Hae jin PARK ; Yoon-Young CHOI ; Young-Jun LEE ; Jae Kyung MYUNG ; Suk Joong OH ; Seong Oh PARK ; Hye Young SEO ; Jin Won LEE ; Yong-Bae JI ; Kyung TAE
Korean Journal of Otolaryngology - Head and Neck Surgery 2022;65(12):806-812
		                        		
		                        			 Background and Objectives:
		                        			The head and neck multidisciplinary team (MDT) approach plays a crucial role in bringing together the ideas of various medical professionals. This study aimed to evaluate the early characteristics of the MDT approach for head and neck cancer and analyzed patients’ satisfaction.Subjects and Method We analyzed 450 head and neck cancer patients who received MDT care from August 2014 to June 2022. Patient satisfaction with MDT care was evaluated by selfadministered questionnaires consisting of 9 questions. 
		                        		
		                        			Results:
		                        			Of 450, 298 (66.2%) were male and 152 (33.8%) were female. The mean age was 60.8±14.7 year. The most common primary site was the larynx (17.3%), followed by the oral cavity and oropharynx. A total of 726 cases of the MDT approach were performed in 266 MDT sessions, and the mean number of patients per MDT session was 2.74. The number of medical professionals participating in MDT ranged from a minimum of 3 to a maximum of 9, with a mean of 5.11. The mean running time of MDT meetings per case was 19.51 minutes. The time of the 2nd MDT was significantly shorter than that of the 1st or 3rd MDT. The mean score was close to very satisfactory in each of the 9 patient satisfaction questions. 
		                        		
		                        			Conclusion
		                        			We believe that the MDT approach is feasible and recommend its introduction for the treatment of head and neck cancer as most patients have shown very high satisfaction. Further studies on the role and efficacy of MDT care for head and neck cancer are necessary. 
		                        		
		                        		
		                        		
		                        	
2.Case Report: Intracapsular Carcinoma Ex Pleomorphic Adenoma of Parotid Gland
Seungyeol LEE ; Hwangkyu SON ; Ho Sub PARK ; Chang Myeon SONG
Korean Journal of Head and Neck Oncology 2022;38(1):43-47
		                        		
		                        			
		                        			 Among a variety of malignant types for parotid gland tumors, intracapsular carcinoma ex pleomorphic adenoma which is classified as a non-invasive tumor has been reported rarely. We report a case of a 69-years old patient, who presented with a left parotid mass that was detected 30 years ago. Fine needle aspiration biopsy result of the mass was “suggestive of pleomorphic adenoma”. Superficial partial parotidectomy was performed for the mass and the permanent pathologic finding was “intracapsular carcinoma ex pleomorphic adenoma” which was a salivary ductal carcinoma with well-preserved myoepithelial cells surrounding the malignant epithelial cell clusters. Surgical resection is the main treatment modality for the treatment of intracapsular carcinoma ex pleomorphic adenoma. Herein, we present the case with a review of literature. 
		                        		
		                        		
		                        		
		                        	
3.Standardization of FEES Evaluation for the Accurate Diagnosis of Dysphagia
Bo Young KIM ; Bo Young KIM ; Jin LEE ; Jin LEE ; Bo Hae KIM ; Bo Hae KIM ; Hanaro PARK ; Hanaro PARK ; Sung Joon PARK ; Sung Joon PARK ; Chang Myeon SONG ; Chang Myeon SONG ; Eun-Jae CHUNG ; Eun-Jae CHUNG ; Tack-Kyun KWON ; Tack-Kyun KWON ; Young Ju JIN ; Young Ju JIN
Journal of the Korean Dysphagia Society 2022;12(1):59-63
		                        		
		                        			 Objective:
		                        			Fiberoptic endoscopic evaluation of swallowing (FEES) is a standard diagnostic tool for swallowing disorders. However, it has not been used frequently in Korea because of the long test time, low cost, and the absence of a standard evaluation system. The purpose of this study was to suggest a standard fill-out form for the FEES result. 
		                        		
		                        			Methods:
		                        			From February 2019 to June 2020, a total of 98 FEES tests were performed by an otolaryngologist (JYJ) at the Wonkwang University Hospital. After the exclusion of 68 cases, 30 cases were analyzed twice by 4 raters with over 5 years of experience as otolaryngologists working in various hospitals. The results were measured for the rater’s test-retest reliability and inter-rater consistency. 
		                        		
		                        			Results:
		                        			Cohen’s kappa values for measuring the intra-rater consistency of the four raters were 0.984, 0.887, 0.848, and 0.930, respectively, meaning very good alignment of 0.8 or more, respectively. The Fleiss Kappa value for measuring inter-rater consistency was 0.276, meaning ‘fair’ for values of 0.2 or more. To examine consistency, an intraclass correlation coefficient (ICC) analysis conducted by assuming the grading score to be a constant continuous variable gave an ICC value of 0.729 (P<0.001), showing a very reliable tendency. 
		                        		
		                        			Conclusion
		                        			In this study, all the items of the fill-out form were rated using a three-step grading scale, so the degree of agreement was high when performed twice by the same rater, but the degree of agreement among raters was relatively low. Therefore, our fill-out form for FEES will be useful in evaluating the improvement of a patient over the course of clinical treatment. 
		                        		
		                        		
		                        		
		                        	
4.Guidelines for Tracheostomy From the Korean Bronchoesophagological Society
; Inn-Chul NAM ; Yoo Seob SHIN ; Woo-Jin JEONG ; Min Woo PARK ; Seong Yong PARK ; Chang Myeon SONG ; Young Chan LEE ; Jae Hyun JEON ; Jongmin LEE ; Chang Hyun KANG ; Il-Seok PARK ; Kwhanmien KIM ; Dong Il SUN
Clinical and Experimental Otorhinolaryngology 2020;13(4):361-375
		                        		
		                        			
		                        			 The Korean Bronchoesophagological Society appointed a task force to develop a clinical practice guideline for tracheostomy. The task force conducted a systematic search of the Embase, Medline, Cochrane Library, and KoreaMed databases to identify relevant articles, using search terms selected according to key questions. Evidence-based recommendations for practice were ranked according to the American College of Physicians grading system. An external expert review and a Delphi questionnaire were conducted to reach a consensus regarding the recommendations. Accordingly, the committee developed 18 evidence-based recommendations, which are grouped into seven categories. These recommendations are intended to assist clinicians in performing tracheostomy and in the management of tracheostomized patients. 
		                        		
		                        		
		                        		
		                        	
5.A Case of Laryngeal Inflammatory Myofibroblastic Tumor
Sang Gyu PARK ; Yeseul KIM ; Jun Hyun WOONG ; Chang Myeon SONG
Korean Journal of Head and Neck Oncology 2019;35(2):71-75
		                        		
		                        			
		                        			Inflammatory myofibrolastic tumor (IMT) is a rare borderline neoplasm. It frequently occurs in the lung but occasionally occurs in extrapulmonary sites such as the genitourinary tract, gastrointestinal tract, breast, salivary glands, sinonasal tract, orbit, and the central nervous system. Laryngeal involvement of IMT is very rare.A 61-year-old woman who complained of hoarseness persisting for 3 months visited our hospital. Laryngoscopy showed an elevated lesion in the right true vocal cord. Incisional biopsy was confirmed as larygeal inflammatory myofibrolastic tumor. We performed a transoral excision with CO2 LASER under suspension examination. Regional recurrence or distant metastasis was not observed after 9 months of follow-up. Herein we report a case of larygeal inflammatory myofibrolastic tumor that was treated with surgery alone, with a literature review.
		                        		
		                        		
		                        		
		                        			Biopsy
		                        			;
		                        		
		                        			Breast
		                        			;
		                        		
		                        			Central Nervous System
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Gastrointestinal Tract
		                        			;
		                        		
		                        			Hoarseness
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laryngoscopy
		                        			;
		                        		
		                        			Larynx
		                        			;
		                        		
		                        			Lasers, Gas
		                        			;
		                        		
		                        			Lung
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Myofibroblasts
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Orbit
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Salivary Glands
		                        			;
		                        		
		                        			Vocal Cords
		                        			
		                        		
		                        	
6.Risk Factors and On-site Rescue Treatments for Endoscopic Variceal Ligation Failure.
Dong Hyun KIM ; Eunae CHO ; Chung Hwan JUN ; Dong Jun SON ; Myeon Jae LEE ; Chang Hwan PARK ; Sung Bum CHO ; Seon Young PARK ; Hyun Soo KIM ; Sung Kyu CHOI ; Jong Sun REW
The Korean Journal of Gastroenterology 2018;72(4):188-196
		                        		
		                        			
		                        			BACKGROUND/AIMS: The success rate of endoscopic variceal ligation (EVL) is about 85–94%. There is only a few studies attempting to determine the cause of EVL failure, and to date, on-site rescue treatments remains unestablished. This study aimed to elucidate the risk factors for EVL failure and the effectiveness of on-site rescue treatment. METHODS: Data of 454 patients who underwent emergency EVL at Chonnam National University Hospital were retrospectively analyzed. Enrolled patients were divided into two groups: the EVL success and EVL failure groups. EVL failures were defined as inability to ligate the varices due to poor endoscopic visual field, or failure of hemostasis after band ligation for the culprit lesion. RESULTS: Forty-seven patients experienced EVL failure. In the multivariate analysis, male patients, initial hypovolemic shock, active bleeding on endoscopy, and history of previous EVL were independent risk factors for EVL failure. During endoscopic procedure, we came across the common causes of EVL failure, including unsuctioned varix due to previous EVL-induced scars followed by insufficient ligation of the stigmata and inability to ligate the varix due to poor endoscopic visual field. Endoscopic variceal obturation using N-butyl-2-cyanoacrylate (48.9%) was the most commonly used on-site rescue treatment method, followed by insertion of Sangstaken Blakemore tube (14.9%), and EVL retrial (12.8%). The rescue treatments successfully achieved hemostasis in 91.7% of those in the EVL failure group. CONCLUSIONS: The risk factors of EVL failure should be considered before performing EVL, and in case of such scenario, on-site rescue treatment is needed.
		                        		
		                        		
		                        		
		                        			Christianity
		                        			;
		                        		
		                        			Cicatrix
		                        			;
		                        		
		                        			Emergencies
		                        			;
		                        		
		                        			Enbucrilate
		                        			;
		                        		
		                        			Endoscopy
		                        			;
		                        		
		                        			Esophageal and Gastric Varices
		                        			;
		                        		
		                        			Hemorrhage
		                        			;
		                        		
		                        			Hemostasis
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Jeollanam-do
		                        			;
		                        		
		                        			Ligation*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Multivariate Analysis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Risk Factors*
		                        			;
		                        		
		                        			Salvage Therapy
		                        			;
		                        		
		                        			Shock
		                        			;
		                        		
		                        			Treatment Failure
		                        			;
		                        		
		                        			Varicose Veins
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
7.Long-Term Effects of Adenotonsillectomy on Growth and Symptoms in Childhood.
Woo Sung PARK ; Yong Bae JI ; Seung Hwan LEE ; Jin Hyeok JEONG ; Chang Myeon SONG ; Kyung TAE
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(12):681-685
		                        		
		                        			
		                        			BACKGROUND AND OBJECTIVES: This study was performed to evaluate the long-term effect of adenotonsillectomy on childhood growth by examining preoperative growth status and presenting symptoms. SUBJECTS AND METHOD: One hundred and four patients who underwent adenotonsillectomy from January to December 2009 were enrolled in this study. Clinical data were collected from medical record reviews and through the administered questionnaire. We investigated symptoms and growth changes during 5 years following the surgery. RESULTS: The mean age of patients was 6.0±1.94 years (range, 3–10), with the male to female ratio of 62:42. Pre-operative symptoms were significantly improved after the surgery. The mean pre-operative height and weight percentiles were 53.6±27.4 and 59.6±29.2 at initial evaluation, and 67.1±26.4 and 59.6±28.6 at 5 years post adenotonsillectomy (p < 0.001, p=0.989), respectively. An increase in height percentile was more prominent in patients whose pre-operative height percentile was less than 50 compared to those with a percentile of 50 or more (p < 0.001). Weight percentile was significantly increased in those with the pre-operative weight percentile of less than 50 and decreased in patients with a percentile of 50 or more. CONCLUSION: Adenotonsillectomy has a positive effect on height growth in children with adenotonsillar hypertrophy, especially in patients whose height percentile is less than 50. Weight gain also can be expected in preoperative low-weight children.
		                        		
		                        		
		                        		
		                        			Adenoidectomy
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypertrophy
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Medical Records
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Tonsillectomy
		                        			;
		                        		
		                        			Weight Gain
		                        			
		                        		
		                        	
8.Guidelines for the Surgical Management of Laryngeal Cancer: Korean Society of Thyroid-Head and Neck Surgery.
Soon Hyun AHN ; Hyun Jun HONG ; Soon Young KWON ; Kee Hwan KWON ; Jong Lyel ROH ; Junsun RYU ; Jun Hee PARK ; Seung Kuk BAEK ; Guk Haeng LEE ; Sei Young LEE ; Jin Choon LEE ; Man Ki CHUNG ; Young Hoon JOO ; Yong Bae JI ; Jeong Hun HAH ; Minsu KWON ; Young Min PARK ; Chang Myeon SONG ; Sung Chan SHIN ; Chang Hwan RYU ; Doh Young LEE ; Young Chan LEE ; Jae Won CHANG ; Ha Min JEONG ; Jae Keun CHO ; Wonjae CHA ; Byung Joon CHUN ; Ik Joon CHOI ; Hyo Geun CHOI ; Kang Dae LEE
Clinical and Experimental Otorhinolaryngology 2017;10(1):1-43
		                        		
		                        			
		                        			Korean Society of Thyroid-Head and Neck Surgery appointed a Task Force to develop clinical practice guidelines for the surgical treatment of laryngeal cancer. This Task Force conducted a systematic search of the EMBASE, MEDLINE, Cochrane Library, and KoreaMed databases to identify relevant articles, using search terms selected according to the key questions. Evidence-based recommendations were then created on the basis of these articles. An external expert review and Delphi questionnaire were applied to reach consensus regarding the recommendations. The resulting guidelines focus on the surgical treatment of laryngeal cancer with the assumption that surgery is the selected treatment modality after a multidisciplinary discussion in any context. These guidelines do not, therefore, address non-surgical treatment such as radiation therapy or chemotherapy. The committee developed 62 evidence-based recommendations in 32 categories intended to assist clinicians during management of patients with laryngeal cancer and patients with laryngeal cancer, and counselors and health policy-makers.
		                        		
		                        		
		                        		
		                        			Advisory Committees
		                        			;
		                        		
		                        			Consensus
		                        			;
		                        		
		                        			Counseling
		                        			;
		                        		
		                        			Drug Therapy
		                        			;
		                        		
		                        			Glottis
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laryngeal Neoplasms*
		                        			;
		                        		
		                        			Neck*
		                        			
		                        		
		                        	
9.Treatment Outcomes and Prognostic Factors of Nasopharyngeal Carcinoma.
Woo Sung PARK ; Sun Wook KIM ; Yong Bae JI ; Chang Myeon SONG ; Chul Won PARK ; Kyung TAE
Korean Journal of Otolaryngology - Head and Neck Surgery 2016;59(3):222-228
		                        		
		                        			
		                        			BACKGROUND AND OBJECTIVES: Nasopharyngeal carcinoma is an uncommon disease that is usually found in the advanced stage becuase its anatomical location makes early detection difficult. Radiation therapy or concurrent chemoradiation therapy is mainstay for treatment of nasopharyngeal carcinoma. We evaluated clinical characteristics and treatment outcomes of nasopharyngeal carcinoma and assessed prognostic factors related to survival. SUBJECTS AND METHOD: We retrospectively reviewed medical records of 87 patients who were treated for nasopharyngeal carcinoma from 1994 to 2013. Clinical characteristics, pathologic type, stage, treatment modality, recurrence and survival were investigated. RESULTS: The mean follow-up period was 66.7 (12-232) months. Recurrence rates were not significantly different between the radiation therapy group and combined chemoradiation groups in the early stage (27.3% vs. 21.6%, p=0.644) and the advanced stage (21.4% vs. 31.3%, p=0.496). Five-year overall survival and disease free survival rate was 74.0% and 58.9%, respectively. Five-year overall survival rate of the combined chemoradiation therapy group was significantly lower than that of the radiation therapy group (64.4% vs. 94.1%, p=0.001). Distant metastasis was significantly correlated with survival in multivariate analysis. CONCLUSION: In this study, the five-year overall survival rate was better in the radiation therapy group than in the combined chemoradiation group. This might be related to the fact that advanced stage disease was more common in the combined chemoradiation group. Further studies with larger study samples and longer follow-up are necessary to verify these results and determine optimal modalities for the treatment of nasopharyngeal carcinoma.
		                        		
		                        		
		                        		
		                        			Disease-Free Survival
		                        			;
		                        		
		                        			Drug Therapy
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Medical Records
		                        			;
		                        		
		                        			Multivariate Analysis
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Survival Rate
		                        			
		                        		
		                        	
10.Significance of the Extracapsular Spread of Metastatic Lymph Nodes in Papillary Thyroid Carcinoma.
Chang Ho PARK ; Chang Myeon SONG ; Yong Bae JI ; Ju Yeon PYO ; Ki Jong YI ; Young Soo SONG ; Yong Wook PARK ; Kyung TAE
Clinical and Experimental Otorhinolaryngology 2015;8(3):289-294
		                        		
		                        			
		                        			OBJECTIVES: The extracapsular spread (ECS) of metastatic lymph nodes is associated with aggressive tumor behavior, and is regarded as a major risk factor for local recurrence in patients with head and neck squamous cell carcinoma. However, the significance of ECS of metastatic lymph nodes has not been well established in well-differentiated thyroid carcinoma. The purpose of this study was to examine this question. METHODS: A retrospective review was performed of 335 patients with papillary thyroid carcinoma who underwent total thyroidectomy with lymph node dissection from April 2001 to December 2009. We analyzed various clinical characteristics, pathologic factors, and the size, number, and ECS of foci in metastatic lymph nodes. RESULTS: On pathologic review, 201 of the patients (56.6%) had lymph node metastasis. This was significantly related to age and tumor size. ECS was noted in 64 of these 201 patients (31.8%), and was significantly related to male gender, tumor size, presence of extrathyroidal extension, metastatic lymph node size, and focus size. Recurrence occurred in 13 patients (3.9%), and the presence of ECS was significantly related to recurrence. CONCLUSION: ECS of metastatic lymph nodes is an important prognostic factor for loco-regional recurrence in papillary thyroid carcinoma.
		                        		
		                        		
		                        		
		                        			Carcinoma, Squamous Cell
		                        			;
		                        		
		                        			Head
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Lymph Node Excision
		                        			;
		                        		
		                        			Lymph Nodes*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Neck
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Thyroid Gland*
		                        			;
		                        		
		                        			Thyroid Neoplasms*
		                        			;
		                        		
		                        			Thyroidectomy
		                        			
		                        		
		                        	
            
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