1.Consensus Statements on Tinnitus Treatment: A Delphi Study by the Korean Tinnitus Study Group
Junhui JEONG ; Ho Yun LEE ; Oak-Sung CHOO ; Hantai KIM ; Kyu-Yup LEE ; Jae-Jin SONG ; Jae-Hyun SEO ; Yoon Chan RAH ; Jae-Jun SONG ; Eui-Cheol NAM ; Shi Nae PARK ; In Seok MOON ; Hyun Joon SHIM
Journal of Korean Medical Science 2025;40(18):e75-
		                        		
		                        			 Background:
		                        			Tinnitus is a bothersome condition associated with various mechanisms of action. Although treatment methods vary according to these mechanisms, standardized guidelines would benefit both patients and clinicians. We conducted a Delphi study, a method that collects expert opinions through multiple rounds of questionnaires, to reach a consensus on tinnitus treatment with professional experts. 
		                        		
		                        			Methods:
		                        			A two-round modified Delphi survey was conducted to develop a clinical consensus on tinnitus treatment. The experts scored each statement on a scale of 1 (highest disagreement) to 9 (highest agreement) for their level of agreement on tinnitus treatment.Consensus was defined when 75% or more of the participants scored 7–9, and 15% or less scored 1–3. To ensure reliability of the responses, the content validity ratio and Kendall’s coefficient of concordance were evaluated. 
		                        		
		                        			Results:
		                        			Approximately 19 of 31 statements reached a consensus. All 3 statements reached a consensus regarding the candidates for treatment. Regarding treatment, 3 of 8 statements on medication, 2 of 2 statements on tinnitus retraining therapy/cognitive behavioral therapy, and 5 of 7 statements on auditory rehabilitation reached a positive consensus. Although all 6 statements regarding miscellaneous treatment reached a consensus, most were negatively agreed. For treatment with neuromodulation, none of the 5 statements reached a consensus. 
		                        		
		                        			Conclusion
		                        			The experts reached a high level of consensus on treatment candidates, tinnitus retraining therapy/cognitive behavioral therapy, and auditory rehabilitation in this modified Delphi study. The results of this study can provide beneficial and practical information for clinicians regarding the treatment of tinnitus. 
		                        		
		                        		
		                        		
		                        	
2.Consensus Statements on Tinnitus Treatment: A Delphi Study by the Korean Tinnitus Study Group
Junhui JEONG ; Ho Yun LEE ; Oak-Sung CHOO ; Hantai KIM ; Kyu-Yup LEE ; Jae-Jin SONG ; Jae-Hyun SEO ; Yoon Chan RAH ; Jae-Jun SONG ; Eui-Cheol NAM ; Shi Nae PARK ; In Seok MOON ; Hyun Joon SHIM
Journal of Korean Medical Science 2025;40(18):e75-
		                        		
		                        			 Background:
		                        			Tinnitus is a bothersome condition associated with various mechanisms of action. Although treatment methods vary according to these mechanisms, standardized guidelines would benefit both patients and clinicians. We conducted a Delphi study, a method that collects expert opinions through multiple rounds of questionnaires, to reach a consensus on tinnitus treatment with professional experts. 
		                        		
		                        			Methods:
		                        			A two-round modified Delphi survey was conducted to develop a clinical consensus on tinnitus treatment. The experts scored each statement on a scale of 1 (highest disagreement) to 9 (highest agreement) for their level of agreement on tinnitus treatment.Consensus was defined when 75% or more of the participants scored 7–9, and 15% or less scored 1–3. To ensure reliability of the responses, the content validity ratio and Kendall’s coefficient of concordance were evaluated. 
		                        		
		                        			Results:
		                        			Approximately 19 of 31 statements reached a consensus. All 3 statements reached a consensus regarding the candidates for treatment. Regarding treatment, 3 of 8 statements on medication, 2 of 2 statements on tinnitus retraining therapy/cognitive behavioral therapy, and 5 of 7 statements on auditory rehabilitation reached a positive consensus. Although all 6 statements regarding miscellaneous treatment reached a consensus, most were negatively agreed. For treatment with neuromodulation, none of the 5 statements reached a consensus. 
		                        		
		                        			Conclusion
		                        			The experts reached a high level of consensus on treatment candidates, tinnitus retraining therapy/cognitive behavioral therapy, and auditory rehabilitation in this modified Delphi study. The results of this study can provide beneficial and practical information for clinicians regarding the treatment of tinnitus. 
		                        		
		                        		
		                        		
		                        	
3.Consensus Statements on Tinnitus Treatment: A Delphi Study by the Korean Tinnitus Study Group
Junhui JEONG ; Ho Yun LEE ; Oak-Sung CHOO ; Hantai KIM ; Kyu-Yup LEE ; Jae-Jin SONG ; Jae-Hyun SEO ; Yoon Chan RAH ; Jae-Jun SONG ; Eui-Cheol NAM ; Shi Nae PARK ; In Seok MOON ; Hyun Joon SHIM
Journal of Korean Medical Science 2025;40(18):e75-
		                        		
		                        			 Background:
		                        			Tinnitus is a bothersome condition associated with various mechanisms of action. Although treatment methods vary according to these mechanisms, standardized guidelines would benefit both patients and clinicians. We conducted a Delphi study, a method that collects expert opinions through multiple rounds of questionnaires, to reach a consensus on tinnitus treatment with professional experts. 
		                        		
		                        			Methods:
		                        			A two-round modified Delphi survey was conducted to develop a clinical consensus on tinnitus treatment. The experts scored each statement on a scale of 1 (highest disagreement) to 9 (highest agreement) for their level of agreement on tinnitus treatment.Consensus was defined when 75% or more of the participants scored 7–9, and 15% or less scored 1–3. To ensure reliability of the responses, the content validity ratio and Kendall’s coefficient of concordance were evaluated. 
		                        		
		                        			Results:
		                        			Approximately 19 of 31 statements reached a consensus. All 3 statements reached a consensus regarding the candidates for treatment. Regarding treatment, 3 of 8 statements on medication, 2 of 2 statements on tinnitus retraining therapy/cognitive behavioral therapy, and 5 of 7 statements on auditory rehabilitation reached a positive consensus. Although all 6 statements regarding miscellaneous treatment reached a consensus, most were negatively agreed. For treatment with neuromodulation, none of the 5 statements reached a consensus. 
		                        		
		                        			Conclusion
		                        			The experts reached a high level of consensus on treatment candidates, tinnitus retraining therapy/cognitive behavioral therapy, and auditory rehabilitation in this modified Delphi study. The results of this study can provide beneficial and practical information for clinicians regarding the treatment of tinnitus. 
		                        		
		                        		
		                        		
		                        	
4.Consensus Statements on Tinnitus Treatment: A Delphi Study by the Korean Tinnitus Study Group
Junhui JEONG ; Ho Yun LEE ; Oak-Sung CHOO ; Hantai KIM ; Kyu-Yup LEE ; Jae-Jin SONG ; Jae-Hyun SEO ; Yoon Chan RAH ; Jae-Jun SONG ; Eui-Cheol NAM ; Shi Nae PARK ; In Seok MOON ; Hyun Joon SHIM
Journal of Korean Medical Science 2025;40(18):e75-
		                        		
		                        			 Background:
		                        			Tinnitus is a bothersome condition associated with various mechanisms of action. Although treatment methods vary according to these mechanisms, standardized guidelines would benefit both patients and clinicians. We conducted a Delphi study, a method that collects expert opinions through multiple rounds of questionnaires, to reach a consensus on tinnitus treatment with professional experts. 
		                        		
		                        			Methods:
		                        			A two-round modified Delphi survey was conducted to develop a clinical consensus on tinnitus treatment. The experts scored each statement on a scale of 1 (highest disagreement) to 9 (highest agreement) for their level of agreement on tinnitus treatment.Consensus was defined when 75% or more of the participants scored 7–9, and 15% or less scored 1–3. To ensure reliability of the responses, the content validity ratio and Kendall’s coefficient of concordance were evaluated. 
		                        		
		                        			Results:
		                        			Approximately 19 of 31 statements reached a consensus. All 3 statements reached a consensus regarding the candidates for treatment. Regarding treatment, 3 of 8 statements on medication, 2 of 2 statements on tinnitus retraining therapy/cognitive behavioral therapy, and 5 of 7 statements on auditory rehabilitation reached a positive consensus. Although all 6 statements regarding miscellaneous treatment reached a consensus, most were negatively agreed. For treatment with neuromodulation, none of the 5 statements reached a consensus. 
		                        		
		                        			Conclusion
		                        			The experts reached a high level of consensus on treatment candidates, tinnitus retraining therapy/cognitive behavioral therapy, and auditory rehabilitation in this modified Delphi study. The results of this study can provide beneficial and practical information for clinicians regarding the treatment of tinnitus. 
		                        		
		                        		
		                        		
		                        	
5.Changes in Vestibular Symptoms and Function After Cochlear Implantation: Relevant Factors and Correlations With Residual Hearing
Jeong Hun JANG ; Hantai KIM ; Oak-Sung CHOO ; Hun Yi PARK ; Yun-Hoon CHOUNG
Clinical and Experimental Otorhinolaryngology 2021;14(1):69-75
		                        		
		                        			 Objectives:
		                        			. The aim of this study was to evaluate vestibular function loss after cochlear implantation (CI) and the relationship between vestibular function and hearing changes. 
		                        		
		                        			Methods:
		                        			. Seventy-five patients with CI were enrolled and divided into those with normal preoperative caloric function (group I) and those with a normal preoperative waveform in cervical vestibular evoked myogenic potential (c-VEMP) testing (group II). The relationship between hearing and changes in the vestibular system was analyzed preoperatively and at 3 and 6 months postoperatively. 
		                        		
		                        			Results:
		                        			. In group I, unilateral weakness on the implanted side was detected in five (7.7%) and eight (12.3%) patients at 3 and 6 months post-CI, respectively. By 3 months post-CI, the total slow-phase velocity (SPV; warm and cold stimulations) was significantly different between the implanted and non-implanted sides (P=0.011), and the shift in total SPV from pre- to post-CI was significantly correlated with the average hearing threshold at 6 months post-CI. In group II, an abnormal c-VEMP was detected on the implanted side in six patients (16.2%) at 3 months post-CI, and in six patients (16.2%) at 6 months post-CI. Significant changes were noticed in the P1 and N1 amplitude at 3 months postCI (P=0.027 and P=0.019, respectively). 
		                        		
		                        			Conclusion
		                        			. Vestibular function and residual hearing function should be afforded equal and simultaneous consideration in terms of preservation. 
		                        		
		                        		
		                        		
		                        	
6.Cochlear Implantation via the Transmeatal Approach in an Adolescent with Hunter Syndrome—Type II Mucopolysaccharidosis
Hantai KIM ; Jun Young AN ; Oak-Sung CHOO ; Jeong Hun JANG ; Hun Yi PARK ; Yun-Hoon CHOUNG
Journal of Audiology & Otology 2021;25(1):49-54
		                        		
		                        			
		                        			 Type II mucopolysaccharidosis (MPS II) commonly known as Hunter syndrome, is a rare X-linked lysosomal storage disorder caused by iduronate-2-sulfatase deficiency, which in turn causes otorhinolaryngological manifestations, including sensorineural hearing loss (SNHL). Previously, the median survival age of patients with MPS was approximately 13.4 years. However, in the era of enzyme replacement therapy and other multidisciplinary care modalities, the life expectancy has increased. Herein, we report a rare case of an adolescent with MPS II who underwent SNHL treatment with cochlear implantation (CI). Based on unexpected findings of mastoid emissary veins and overgrowth of the vessels around the temporal bone, CI was performed using the transmeatal approach instead of the conventional transmastoid method, to avoid damage to the vessels. The average hearing threshold after CI was 35 dB and no surgical complications were encountered. Adolescent MPS II may present vessel abnormalities, which can reduce the success rate of surgery. In patients with MPS II with SNHL, CI should be performed under careful monitoring of vessel overgrowth. Moreover, with regard to feasibility of CI in adolescent patients with MPS II with SNHL, surgical techniques such as the transmeatal approach should be selected based on adequate assessment of the case. 
		                        		
		                        		
		                        		
		                        	
7.Volumetric change of the latissimus dorsi muscle after postoperative chemotherapy and radiotherapy in immediate breast reconstruction with an extended latissimus dorsi musculocutaneous flap: final results from serial studies
Kyeong Ho SONG ; Won Seok OH ; Jae Woo LEE ; Min Wook KIM ; Dae Kyun JEONG ; Seong Hwan BAE ; Hyun Yul KIM ; Youn Joo JUNG ; Ki Seok CHOO ; Kyung Jin NAM ; Ji Hyeon JOO ; Mi Sook YUN ; Su Bong NAM
Archives of Plastic Surgery 2021;48(6):607-613
		                        		
		                        			 Background:
		                        			Breast reconstruction using an extended latissimus dorsi (eLD) flap can supplement more volume than reconstruction using various local flaps after partial mastectomy, and it is a valuable surgical method since the reconstruction area is not limited. However, when performing reconstruction, the surgeon should consider latissimus dorsi (LD) volume reduction due to postoperative chemotherapy (POCTx) and postoperative radiotherapy (PORTx). To evaluate the effect of POCTx and PORTx on LD volume reduction, the effects of each therapy—both separately and jointly—need to be demonstrated. The present study quantified LD volume reduction in patients who underwent POCTx and PORTx after receiving breast-conserving surgery (BCS) with an eLD flap. 
		                        		
		                        			Methods:
		                        			This study included 48 patients who received immediate breast reconstruction using an eLD flap from January 2013 to March 2017, had chest computed tomography (CT) 7–10 days after surgery and 10–14 months after radiotherapy completion, and were observed for more than 3 years postoperatively. One surgeon performed the breast reconstruction procedures, and measurements of breast volume were obtained from axial CT views, using a picture archiving and communication system. A P-value <0.05 was the threshold for statistical significance. 
		                        		
		                        			Results:
		                        			The average volume reduction of LD at 10–14 months after completing POCTx and PORTx was 64.5% (range, 42.8%–81.4%) in comparison to the volume measured 7–10 days after surgery. This change was statistically significant (P<0.05). 
		                        		
		                        			Conclusions
		                        			Based on the findings of this study, when harvesting an eLD flap, surgeons should anticipate an average LD volume reduction of 64.5% if chemotherapy and radiotherapy are scheduled after BCS with an eLD flap. 
		                        		
		                        		
		                        		
		                        	
8.Clinical and Imaging Findings of Neonatal Seizures Presenting as Diffuse Cerebral White Matter Abnormality on Diffusion-Weighted Imaging without any Structural or Metabolic Etiology
Maeran KIM ; Jae-Yeon HWANG ; Yeoun Joo LEE ; Yong-Woo KIM ; Shin Yun BYUN ; Yun-Jin LEE ; Jeong A YEOM ; Ung Bae JEON ; Ki Seok CHOO ; Kyung Jin NAM ; Storm Nicholas SHAUN REID
Journal of the Korean Radiological Society 2020;81(6):1412-1423
		                        		
		                        			 Purpose:
		                        			Some patients with neonatal seizures show diffuse, symmetric diffusion-restricted lesions in the cerebral white matter. The aim of this study was to describe clinical and imaging findings of patients with neonatal seizures who had diffuse, symmetric diffusion-restricted lesions without any structural or metabolic etiology. 
		                        		
		                        			Materials and Methods:
		                        			A total of 56 neonates aged less than 1 week underwent brain magnetic resonance imaging (MRI) for evaluation of seizures from November 2008 to February 2017. After excluding 43 patients, 13 patients showed diffuse white matter abnormality on diffusion-weighted imaging. Initial and follow-up clinical and MRI findings were analyzed retro-spectively. 
		                        		
		                        			Results:
		                        			All 13 patients were born at full term. Among the ten patients who underwent a stool test for viruses, six were positive for rotavirus and one for astrovirus. MRI revealed diffuse, symmetric diffusion-restricted lesions distributed along the cerebral white matter, thalami, and midbrain variably. 
		                        		
		                        			Conclusion
		                        			Diffuse, symmetric diffusion-restricted lesions involving the cerebral white matter can be seen in patients with neonatal seizures without any structural or metabolic etiology. Rotavirus is commonly but not exclusively detected in these patients. Nevertheless, viral infection-associated encephalopathy should be considered for patients with characteristic clinical and MRI findings. 
		                        		
		                        		
		                        		
		                        	
9.Quantity over Quality? Perception of Designating Long-Term Care Hospitals as Providers of Hospice and Palliative Care
Yaeji KIM-KNAUSS ; Eunseok JEONG ; Jin ah SIM ; Jihye LEE ; Jiyeon CHOO ; Young Ho YUN
Korean Journal of Hospice and Palliative Care 2019;22(4):145-155
		                        		
		                        			
		                        			PURPOSE: Amendment to the Act on Decisions on Life-sustaining Treatment was recently enacted to designate long-term care hospitals as providers of hospice and palliative care. Despite its benefit of providing improved accessibility to end-of-life care, the amendment has raised concerns about its effect on quality of service. This study aimed to use information obtained from an expert group interview and previous studies to compare how cancer patients, family caregivers, physicians, and the general Korean population perceive the potential benefits and risks of this amendment.METHODS: We conducted a multicenter cross-sectional study from July to October 2016. The included participants answered a structured questionnaire regarding the extent to which they agree or disagree with the questionnaire items indicating the potential benefits and risks of the amendment. Chi-square tests and univariate and multivariate logistic regression analyses were performed.RESULTS: Compared with the general population, physicians agreed more that long-term care hospitals are currently not adequately equipped to provide quality hospice and palliative care. Family caregivers found improved access to long-term care hospitals more favorable but were more likely to agree that these hospitals might prioritize profits, thereby threatening the philosophy of hospice care, and that families might cease to fulfill filial responsibilities. Compared with the general population, cancer patients were more concerned about the potentially decreased service quality in this setting.CONCLUSION: Although potential service beneficiaries and providers expected improved accessibility of hospice and palliative care services, they were also concerned whether the system can provide adequate quality of end-of-life care.
		                        		
		                        		
		                        		
		                        			Caregivers
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Health Personnel
		                        			;
		                        		
		                        			Hospice Care
		                        			;
		                        		
		                        			Hospices
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Interviews as Topic
		                        			;
		                        		
		                        			Logistic Models
		                        			;
		                        		
		                        			Long-Term Care
		                        			;
		                        		
		                        			Palliative Care
		                        			;
		                        		
		                        			Philosophy
		                        			;
		                        		
		                        			Risk Assessment
		                        			;
		                        		
		                        			Terminal Care
		                        			
		                        		
		                        	
10.Hospital-based Influenza Morbidity and Mortality (HIMM) Surveillance for A/H7N9 Influenza Virus Infection in Returning Travelers
Joon Young SONG ; Ji Yun NOH ; Jacob LEE ; Heung Jeong WOO ; Jin Soo LEE ; Seong Heon WIE ; Young Keun KIM ; Hye Won JEONG ; Shin Woo KIM ; Sun Hee LEE ; Kyung Hwa PARK ; Seong Hui KANG ; Sae Yoon KEE ; Tae Hyong KIM ; Eun Ju CHOO ; Han Sol LEE ; Won Suk CHOI ; Hee Jin CHEONG ; Woo Joo KIM
Journal of Korean Medical Science 2018;33(7):e49-
		                        		
		                        			
		                        			Since 2013, the Hospital-based Influenza Morbidity and Mortality (HIMM) surveillance system began a H7N9 influenza surveillance scheme for returning travelers in addition to pre-existing emergency room (ER)-based influenza-like illness (ILI) surveillance and severe acute respiratory infection (SARI) surveillance. Although limited to eastern China, avian A/H7N9 influenza virus is considered to have the highest pandemic potential among currently circulating influenza viruses. During the study period between October 1st, 2013 and April 30th, 2016, 11 cases presented with ILI within seven days of travel return. These patients visited China, Hong Kong, or neighboring Southeast Asian countries, but none of them visited a livestock market. Seasonal influenza virus (54.5%, 6 among 11) was the most common cause of ILI among returning travelers, and avian A/H7N9 influenza virus was not detected during the study period.
		                        		
		                        		
		                        		
		                        			Asian Continental Ancestry Group
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Emergency Service, Hospital
		                        			;
		                        		
		                        			Hong Kong
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Influenza A Virus, H7N9 Subtype
		                        			;
		                        		
		                        			Influenza, Human
		                        			;
		                        		
		                        			Livestock
		                        			;
		                        		
		                        			Mortality
		                        			;
		                        		
		                        			Orthomyxoviridae
		                        			;
		                        		
		                        			Pandemics
		                        			;
		                        		
		                        			Seasons
		                        			
		                        		
		                        	
            
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