1.Consensus Statement: Postoperative Management After Balloon Dilation of the Eustachian Tube
Min Young KWAK ; Ho Yun LEE ; Soo-Keun KONG ; In Seok MOON ; Bong Jik KIM ; Myung-Whan SUH ; Jae Yun JUNG ; Hong Ju PARK ; Kyu-Yup LEE ; Hyong-Ho CHO ; Ryoukichi IKEDA ; Jae-Jin SONG ; Chi-Kyou LEE
Clinical and Experimental Otorhinolaryngology 2024;17(4):273-281
Objectives:
. Balloon dilation of the Eustachian tube (BDET) is widely recognized as a minimally invasive treatment for obstructive Eustachian tube dysfunction (ETD). We employed a Delphi consensus methodology to develop recommendations for the clinical management of BDET in cases of obstructive ETD.
Methods:
. A Delphi panel consisting of 26 expert physicians specializing in otology participated in two rounds of anonymous, iterative questionnaires. Consensus was defined as agreement from ≥70% of the panelists on a recommendation, while disagreement was defined as <70% agreement. The responses from the Delphi study were analyzed using both the content validity ratio and Kendall’s coefficient of concordance.
Results:
. The panel finally evaluated 26 topics, reaching agreement on 9 and failing to reach consensus on 17 after two rounds. While consensus was not achieved regarding the postoperative follow-up period, a duration of 12 months was most commonly adopted. The Valsalva maneuver and questionnaire responses were identified as the most agreed-upon postoperative assessment tools following BDET.
Conclusion
. Consensus was reached on several recommendations for managing BEDT in obstructive ETD. This agreement will guide future research aimed at defining standard postoperative management for BEDT.
2.Consensus Statement: Postoperative Management After Balloon Dilation of the Eustachian Tube
Min Young KWAK ; Ho Yun LEE ; Soo-Keun KONG ; In Seok MOON ; Bong Jik KIM ; Myung-Whan SUH ; Jae Yun JUNG ; Hong Ju PARK ; Kyu-Yup LEE ; Hyong-Ho CHO ; Ryoukichi IKEDA ; Jae-Jin SONG ; Chi-Kyou LEE
Clinical and Experimental Otorhinolaryngology 2024;17(4):273-281
Objectives:
. Balloon dilation of the Eustachian tube (BDET) is widely recognized as a minimally invasive treatment for obstructive Eustachian tube dysfunction (ETD). We employed a Delphi consensus methodology to develop recommendations for the clinical management of BDET in cases of obstructive ETD.
Methods:
. A Delphi panel consisting of 26 expert physicians specializing in otology participated in two rounds of anonymous, iterative questionnaires. Consensus was defined as agreement from ≥70% of the panelists on a recommendation, while disagreement was defined as <70% agreement. The responses from the Delphi study were analyzed using both the content validity ratio and Kendall’s coefficient of concordance.
Results:
. The panel finally evaluated 26 topics, reaching agreement on 9 and failing to reach consensus on 17 after two rounds. While consensus was not achieved regarding the postoperative follow-up period, a duration of 12 months was most commonly adopted. The Valsalva maneuver and questionnaire responses were identified as the most agreed-upon postoperative assessment tools following BDET.
Conclusion
. Consensus was reached on several recommendations for managing BEDT in obstructive ETD. This agreement will guide future research aimed at defining standard postoperative management for BEDT.
3.Consensus Statement: Postoperative Management After Balloon Dilation of the Eustachian Tube
Min Young KWAK ; Ho Yun LEE ; Soo-Keun KONG ; In Seok MOON ; Bong Jik KIM ; Myung-Whan SUH ; Jae Yun JUNG ; Hong Ju PARK ; Kyu-Yup LEE ; Hyong-Ho CHO ; Ryoukichi IKEDA ; Jae-Jin SONG ; Chi-Kyou LEE
Clinical and Experimental Otorhinolaryngology 2024;17(4):273-281
Objectives:
. Balloon dilation of the Eustachian tube (BDET) is widely recognized as a minimally invasive treatment for obstructive Eustachian tube dysfunction (ETD). We employed a Delphi consensus methodology to develop recommendations for the clinical management of BDET in cases of obstructive ETD.
Methods:
. A Delphi panel consisting of 26 expert physicians specializing in otology participated in two rounds of anonymous, iterative questionnaires. Consensus was defined as agreement from ≥70% of the panelists on a recommendation, while disagreement was defined as <70% agreement. The responses from the Delphi study were analyzed using both the content validity ratio and Kendall’s coefficient of concordance.
Results:
. The panel finally evaluated 26 topics, reaching agreement on 9 and failing to reach consensus on 17 after two rounds. While consensus was not achieved regarding the postoperative follow-up period, a duration of 12 months was most commonly adopted. The Valsalva maneuver and questionnaire responses were identified as the most agreed-upon postoperative assessment tools following BDET.
Conclusion
. Consensus was reached on several recommendations for managing BEDT in obstructive ETD. This agreement will guide future research aimed at defining standard postoperative management for BEDT.
4.Outcomes in Refractory Diffuse Large B-Cell Lymphoma: Results from Two Prospective Korean Cohorts
Jun Ho YI ; Seong Hyun JEONG ; Seok Jin KIM ; Dok Hyun YOON ; Hye Jin KANG ; Youngil KOH ; Jin Seok KIM ; Won-Sik LEE ; Deok-Hwan YANG ; Young Rok DO ; Min Kyoung KIM ; Kwai Han YOO ; Yoon Seok CHOI ; Whan Jung YUN ; Yong PARK ; Jae-Cheol JO ; Hyeon-Seok EOM ; Jae-Yong KWAK ; Ho-Jin SHIN ; Byeong Bae PARK ; Seong Yoon YI ; Ji-Hyun KWON ; Sung Yong OH ; Hyo Jung KIM ; Byeong Seok SOHN ; Jong Ho WON ; Dae-Sik HONG ; Ho-Sup LEE ; Gyeong-Won LEE ; Cheolwon SUH ; Won Seog KIM
Cancer Research and Treatment 2023;55(1):325-333
Purpose:
Diffuse large B-cell lymphoma (DLBCL) is the most common hematologic malignancy worldwide. Although substantial improvement has been achieved by the frontline rituximab-based chemoimmunotherapy, up to 40%-50% of patients will eventually have relapsed or refractory disease, whose prognosis is extremely dismal.
Materials and Methods:
We have carried out two prospective cohort studies that include over 1,500 DLBCL patients treated with rituximab plus CHOP (#NCT01202448 and #NCT02474550). In the current report, we describe the outcomes of refractory DLBCL patients. Patients were defined to have refractory DLBCL if they met one of the followings, not achieving at least partial response after 4 or more cycles of R-CHOP; not achieving at least partial response after 2 or more cycles of salvage therapy; progressive disease within 12 months after autologous stem cell transplantation.
Results:
Among 1,581 patients, a total of 260 patients met the criteria for the refractory disease after a median time to progression of 9.1 months. The objective response rate of salvage treatment was 26.4%, and the complete response rate was 9.6%. The median overall survival (OS) was 7.5 months (95% confidence interval, 6.4 to 8.6), and the 2-year survival rate was 22.1%±2.8%. The median OS for each refractory category was not significantly different (p=0.529).
Conclusion
In line with the previous studies, the outcomes of refractory DLBCL patients were extremely poor, which necessitates novel approaches for this population.
5.Arthroscopic Treatment for External Snapping Hip.
Jae Youn YOON ; Hong Suk KWAK ; Kang Sup YOON ; Jae Suk CHANG ; Pil Whan YOON
Hip & Pelvis 2014;26(3):173-177
PURPOSE: The purpose of this study was to evaluate the clinical outcome of arthroscopic treatment for recalcitrant external snapping hip. MATERIALS AND METHODS: Between September 2011 and June 2013, we evaluated 7 patients (10 cases) with snapping hip who were refractory to conservative treatments for at least 3 months. Two patients (4 cases) were impossible to adduct both knees in 90degreesof hip flexion. Surgery was done in lateral decubitus position, under spinal anesthesia. We made 2 arthroscopic portals to operate the patients, and used cross-cutting with flap resection technique to treat the lesion. We performed additional gluteal sling release in those 2 patients (4 cases) with adduction difficulty. Average follow-up length was 19 months (range, 12-33 months). Clinical improvement was evaluated with visual analog scale (VAS), modified Harris hip score (mHHS), and also investigated for presence of limping or other complications as well. RESULTS: The VAS decreased from 6.8 (range, 6-9) preoperatively to 0.2 (range, 0-2) postoperatively, and the mHHS improved from 68.2 to 94.8 after surgery. None of the patients complained of post-operative wound problem or surgical complications. CONCLUSION: The clinical outcome of arthroscopic treatment for recalcitrant external snapping hip was encouraging and all patients were also satisfied with the cosmetic results.
Anesthesia, Spinal
;
Arthroscopy
;
Follow-Up Studies
;
Hip*
;
Humans
;
Knee
;
Visual Analog Scale
;
Wounds and Injuries
6.Inhibition of mouse brown adipocyte differentiation by second-generation antipsychotics.
Jee Eun OH ; Yoon Mi CHO ; Su Nam KWAK ; Jae Hyun KIM ; Kyung Won LEE ; Hyosan JUNG ; Seong Whan JEONG ; Oh Joo KWON
Experimental & Molecular Medicine 2012;44(9):545-553
Brown adipose tissue is specialized to burn lipids for thermogenesis and energy expenditure. Second-generation antipsychotics (SGA) are the most commonly used drugs for schizophrenia with several advantages over first-line drugs, however, it can cause clinically-significant weight gain. To reveal the involvement of brown adipocytes in SGA-induced weight gain, we compared the effect of clozapine, quetiapine, and ziprasidone, SGA with different propensities to induce weight gain, on the differentiation and the expression of brown fat-specific markers, lipogenic genes and adipokines in a mouse brown preadipocyte cell line. On Oil Red-O staining, the differentiation was inhibited almost completely by clozapine (40 microM) and partially by quetiapine (30 microM). Clozapine significantly down-regulated the brown adipogenesis markers PRDM16, C/EBPbeta, PPARgamma2, UCP-1, PGC-1alpha, and Cidea in dose- and time-dependent manners, whereas quetiapine suppressed PRDM16, PPARgamma2, and UCP-1 much weakly than clozapine. Clozapine also significantly inhibited the mRNA expressions of lipogenic genes ACC, SCD1, GLUT4, aP2, and CD36 as well as adipokines such as resistin, leptin, and adiponectin. In contrast, quetiapine suppressed only resistin and leptin but not those of lipogenic genes and adiponectin. Ziprasidone (10 microM) did not alter the differentiation as well as the gene expression patterns. Our results suggest for the first time that the inhibition of brown adipogenesis may be a possible mechanism to explain weight gain induced by clozapine and quetiapine.
Adipocytes, Brown/drug effects
;
Adipogenesis/drug effects
;
Adipokines/metabolism
;
Animals
;
*Antipsychotic Agents/administration & dosage/adverse effects
;
Cell Differentiation/drug effects
;
Cell Line
;
Cell Survival/drug effects
;
*Clozapine/administration & dosage/adverse effects
;
*Dibenzothiazepines/administration & dosage/adverse effects
;
Gene Expression Regulation/drug effects
;
Humans
;
Mice
;
*Piperazines/administration & dosage/adverse effects
;
Schizophrenia/drug therapy
;
*Thiazoles/administration & dosage/adverse effects
;
Weight Gain/*drug effects
7.A Case of Oral Tuberculosis Confirmed by Histopathology.
Jinwoo LEE ; Young Sik PARK ; Hyo Jeong LIM ; Min Sun KWAK ; Woo Hyun LIM ; Jae Joon YIM ; Seok Chul YANG ; Chul Gyu YOO ; Young Whan KIM ; Sung Koo HAN ; Young Soo SHIM ; Sang Min LEE
Tuberculosis and Respiratory Diseases 2009;67(4):356-358
Although tuberculosis is a chronic infectious disease that can occur in any section of the body, oral tuberculosis is rare. Here, we report a case of oral tuberculosis in which the patient sought treatment for a painful oral lesion. A histopathologic examination revealed the characteristics of tuberculosis and pulmonary lesions were detected on subsequent examination. The patient was treated with antituberculosis therapy, and his symptoms improved. This case emphasizes the importance of including oral tuberculosis as part of the differential diagnosis for mucosal lesions.
Communicable Diseases
;
Diagnosis, Differential
;
Humans
;
Mouth
;
Tuberculosis
;
Tuberculosis, Oral
8.A Study of Microsatellite Instability in Primary Small Cell Lung Cancers by Microsatellite Analysis.
Eun Song CHO ; Joon CHANG ; Jae Min PARK ; Dong Whan SHIN ; Se Hoon KIM ; Young Sam KIM ; Yoon Soo CHANG ; Chul Ho CHO ; Seung Min KWAK ; Jun Gu LEE ; Kyung Young CHUNG ; Sung Kyu KIM ; Won Young LEE ; Se Kyu KIM
Tuberculosis and Respiratory Diseases 2000;48(2):180-190
BACKGROUND: Genomic instability, which is manifested by the replication error (RER) phenotype, has been proposed for the promotion of genetic alterations necessary for carcinogenesis. Merlo et al. reported frequent microsatellite instability in primary small cell lung cancers. However, Kim et al. found that instability occurred in only 1% of the loci tested and did not resemble the replication error-positive phenotype. The significance of microsatellite instability in the tumorigenesis of small cell lung cancer ( as well as the relationship between microsatellite instability and its clinical prognosis was investigated in our study. METHODS: Fifteen primary small cell lung cancers were chosen for this study. The DNAs extracted from paraffin-embedded tissue blocks with both primary tumor and corresponding control tissue were investigated. This phrase is unclear. Does this mean the blocks contained both primary tumor and control tissue samples? Forty microsatellite markers on chromosome 1p, 2p, 3p, 5q, 6p, 6q, 9p, 9q, 13q, and 17p were used in the microsatellite analysis. RESULTS: 1) Thirteen (86.7%) of 15 tumors exhibited LOH in at least one of the tested microsatellite markers. 2) Three of 13 tumors exhibiting LOH lost a larger area in chromosome 9p. 3) LOH was shown in 72.7% on chromosome 2p, 40% on 3p, 50% on 5q, 46.7% on 9p, 69.2% on 13q, and 66.7% on 17p(Table 1). 4) Nine (60%) of 15 tumors exhibited shifted bands in at least one of the tested microsatellite markers. 5) Nine cases exhibiting shifted bands showed altered loci ranging 2.5~52.5% (mean 9.4% +/-16.19)(Table 2). 6) Shifted bands occurred in 5.7% (34 of 600) of the loci tested Table 2. 7) Nine cases with shifted bands exhibited LOH ranging between 0~83.3%(,) and the median survival duration of those cases was 35 weeks. Six cases without shifted bands exhibited LOH ranging between 0~83.3%(,) and the median survival duration of those cases was 73 weeks. There was no significant difference between median survival durations of the two groups(p=0.4712). CONCLUSION: Microsatellite instability as well as the inactivation of several tumor suppressor genes may play important roles in the development and progression process of tumors. However, the relationship between microsatellite instability and its clinical prognosis in primary small cell lung cancer could not be established.
Carcinogenesis
;
DNA
;
Genes, Tumor Suppressor
;
Genomic Instability
;
Loss of Heterozygosity
;
Lung Neoplasms*
;
Lung*
;
Microsatellite Instability*
;
Microsatellite Repeats*
;
Phenotype
;
Prognosis
;
Small Cell Lung Carcinoma
9.The Effects of Urokinase Instillation Therapy via Percutaneous Transthoracic Catheter Drainage in Loculated Tuberculous Pleural Effusion: A randomized prospective study.
Yong Whan LEE ; Seung Min KWAK ; Mee Young KWON ; In Young BAE ; Chan Sup PARK ; Tae Hun MOON ; Jae Hwa CHO ; Jeong Seon RYU ; Hyong Lyeol LEE ; Hyung Keun ROH ; Chul Ho CHO
Tuberculosis and Respiratory Diseases 1999;47(5):601-608
BACKGROUND: Tuberculous pleural effusion responds well to the anti-tuberculosis agents in general, so no further aggressive therapeutic managements to drain the tuberculous effusion is necessary except in case of diagnostic thoracentesis. But in clinical practice, we often see some patients who later decortication need due to dyspnea caused by pleural thickening despite the completion of anti-tuberculosis therapy in the patients with tuberculous effusion. Especially, the patients with loculated tuberculous effusion might have increased chance of pleural thickening after treatment. The purpose of this study was that intrapleural urokinase instillation could reduce the pleural thickining in the treatment of loculated tuberculous pleural effusion. METHODS: Thirty-seven patients initially diagnosed as having loculated tuberculous pleural effusion were randomly assigned to receive either the combined treatment of urokinase instillation and anti-tuberculosis agents(UK group) and anti-tuberculosis agents(Non-UK group) alone. The 16 patients in UK group received a single radiographically guided pig-tail catheter ranging in size from 10 to 12 French. 100,000 units of urokinase was dissolved in 150 ml of normal saline and instilled into the pleural cavity via pig-tail catheter every day, also this group was treated with anti-tuberculosis agents. While the 21 patients in Non-UK group were teated with anti-tuberculosis agents only except diagnostic thoracentesis. Then we evaluated the residual pleural thickening after treatment for their loculated tuberculous pleural effusion between the two groups. Also the duration of symptoms and the pleural fluid biochemistry like WBC counts, pH, lactic dehydrogenase (LDH), glucose, proteins, and adenosine deaminase (ADA) were compared. RESULTS: 1) The residual pleural thickening (RPT) (5.08 +/- 6.77 mm) of UK group was significantly lower than that (20.32 +/- 26.37 mm) of Non-UK group (P<0.05). 2) The duration of symptoms before anti-tuberculosis drug therapy of patients with RPT >or=10 mm(5.23 +/- 3.89 wks) was significantly longer than the patients with RPT <10 mm(2.63 +/- 1.99 wks) (P<0.05). 3) There were no significant differences in the pleural fluid findings like WBC count, glucose, LDH, proteins, pH, ADA between the patients with RPT >or=10 mm and the patients with RPT <10 mm. CONCLUSION: The treatment of loculated tuberculous pleural effusion with the urokinase instillation via percutaneous transthoraic catheter was effective to reduce the pleural thickening.
Adenosine Deaminase
;
Biochemistry
;
Catheters*
;
Drainage*
;
Drug Therapy
;
Dyspnea
;
Glucose
;
Humans
;
Hydrogen-Ion Concentration
;
Oxidoreductases
;
Pleural Cavity
;
Pleural Effusion*
;
Prospective Studies*
;
Tuberculosis
;
Urokinase-Type Plasminogen Activator*
10.Unidirectional Valve Patch Closure for Ventricular Septal Defect with Severe Pulmonary Hypertension: A Case Report.
Seok Whan MOON ; Kuen Hyon JO ; Yoon Hee JANG ; Sung Ryong PARK ; Young Pil WANG ; Se Wha KIM ; Moon Sub KWAK ; Jae Kul KANG
The Korean Journal of Thoracic and Cardiovascular Surgery 1998;31(7):718-721
The surgical closure of VSD in patient with severe pulmonary hypertension has been considered a difficult problem for surgeons, because sudden hemodynamic change after closure of the defect could bring on high perioperative mortality. Recently, it was reported that UVP (unidirectional valve patch), which allows some blood to flow from right to left in case of acute right heart failure, is effective in improving the postoperative hemodynamics after closing septal defects. This 42-year old woman had suffered from VSD for 20 years and recently complained of worsening exertional dyspnea for three months, and was diagnosed of a large VSD (2.0 cm in diameter) with severe pulmonary hypertension (116/38 mm Hg), equal to systemic arterial pressure. We could successfully close VSD with severe pulmonary hypertension using one UVP and the other UVP for the creative ASD to be prepared against possible acute right heart failure. She was discharged on the fourteenth postoperative day and has been well for twelve months with spontanenous closure of UVP patch at the ninth postopeative month.
Adult
;
Arterial Pressure
;
Dyspnea
;
Female
;
Heart Failure
;
Heart Septal Defects
;
Heart Septal Defects, Ventricular*
;
Hemodynamics
;
Humans
;
Hypertension, Pulmonary*
;
Mortality

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