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Yoo KH, Kim SH, Kim SH, Moon JY, Park HW, Chang YS, Beekman MJ. Short-acting β2-agonist prescriptions in patients with asthma: findings from the South Korean cohort of SABINA III. Korean J Intern Med 2024; 39:123-136. [PMID: 38057957 PMCID: PMC10790050 DOI: 10.3904/kjim.2023.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND/AIMS Despite short-acting β2-agonist (SABA) overuse being associated with poor asthma outcomes, data on SABA use in South Korea is scarce. Herein, we describe prescription patterns of SABA and other asthma medications in patients from the South Korean cohort of the SABA use IN Asthma (SABINA) III study. METHODS This study included patients with asthma aged ≥ 12 years, who had ≥ 3 consultations with the same healthcare provider, and medical records containing data for ≥ 12 months prior to the study visit. Patients were classified by investigator-defined asthma severity (per 2017 Global Initiative for Asthma recommendations) and practice type (primary or specialist care). Data on disease characteristics, asthma treatments, and clinical outcomes in the 12 months before the study visit were collected using electronic case report forms. RESULTS Data from 476 patients (mean age, 55.4 years; female, 63.0%) were analyzed. Most patients were treated by specialists (83.7%) and had moderate-to-severe asthma (91.0%). Overall, 7.6% of patients were prescribed ≥ 3 SABA canisters (defined as over-prescription). In patients prescribed SABA in addition to maintenance therapy, 47.4% were over-prescribed SABA. Most patients (95.4%) were prescribed a fixed-dose combination of an inhaled corticosteroid and a long-acting β2-agonist as maintenance therapy. Although asthma was well-controlled/partly-controlled in 91.6% of patients, 29.6% experienced ≥ 1 severe asthma exacerbation. CONCLUSION SABA over-prescription was reported in nearly 50% of patients prescribed SABA in addition to maintenance therapy, underscoring the need to align clinical practices with the latest evidence-based recommendations and educate physicians and patients on appropriate SABA use.
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Affiliation(s)
- Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul,
Korea
| | - Sang-Ha Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju,
Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul,
Korea
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul,
Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul,
Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul,
Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul,
Korea
| | - Yoon-Seok Chang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul,
Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul,
Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam,
Korea
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Chen W, Tran TN, Sadatsafavi M, Murray R, Wong NCB, Ali N, Ariti C, Bulathsinhala L, Gil EG, FitzGerald JM, Alacqua M, Al-Ahmad M, Altraja A, Al-Lehebi R, Bhutani M, Bjermer L, Bjerrum AS, Bourdin A, von Bülow A, Busby J, Canonica GW, Carter V, Christoff GC, Cosio BG, Costello RW, Fonseca JA, Gibson PG, Yoo KH, Heaney LG, Heffler E, Hew M, Hilberg O, Hoyte F, Iwanaga T, Jackson DJ, Jones RC, Koh MS, Kuna P, Larenas-Linnemann D, Lehmann S, Lehtimäki L, Lyu J, Mahboub B, Maspero J, Menzies-Gow AN, Newell A, Sirena C, Papadopoulos NG, Papaioannou AI, Perez-de-Llano L, Perng Steve DW, Peters M, Pfeffer PE, Porsbjerg CM, Popov TA, Rhee CK, Salvi S, Taillé C, Taube C, Torres-Duque CA, Ulrik C, Ra SW, Wang E, Wechsler ME, Price DB. Impact of Initiating Biologics in Patients With Severe Asthma on Long-Term Oral Corticosteroids or Frequent Rescue Steroids (GLITTER): Data From the International Severe Asthma Registry. J Allergy Clin Immunol Pract 2023; 11:2732-2747. [PMID: 37301430 DOI: 10.1016/j.jaip.2023.05.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Effectiveness of biologics has neither been established in patients with high oral corticosteroid exposure (HOCS) nor been compared with effectiveness of continuing with HOCS alone. OBJECTIVE To examine the effectiveness of initiating biologics in a large, real-world cohort of adult patients with severe asthma and HOCS. METHODS This was a propensity score-matched, prospective cohort study using data from the International Severe Asthma Registry. Between January 2015 and February 2021, patients with severe asthma and HOCS (long-term OCSs for ≥1 year or ≥4 courses of rescue OCSs within a 12-month period) were identified. Biologic initiators were identified and, using propensity scores, matched 1:1 with noninitiators. The impact of biologic initiation on asthma outcomes was assessed using generalized linear models. RESULTS We identified 996 matched pairs of patients. Both groups improved over the 12-month follow-up period, but improvement was greater for biologic initiators. Biologic initiation was associated with a 72.9% reduction in the average number of exacerbations per year versus noninitiators (0.64 vs 2.06; rate ratio, 0.27 [95% CI, 0.10-0.71]). Biologic initiators were 2.2 times more likely than noninitiators to take a daily long-term OCS dose of less than 5 mg (risk probability, 49.6% vs 22.5%; P = .002) and had a lower risk of asthma-related emergency department visits (relative risk, 0.35 [95% CI, 0.21-0.58]; rate ratio, 0.26 [0.14-0.48]) and hospitalizations (relative risk, 0.31 [95% CI, 0.18-0.52]; rate ratio, 0.25 [0.13-0.48]). CONCLUSIONS In a real-world setting, including patients with severe asthma and HOCS from 19 countries, and within an environment of clinical improvement, initiation of biologics was associated with further improvements across multiple asthma outcomes, including exacerbation rate, OCS exposure, and health care resource utilization.
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Affiliation(s)
- Wenjia Chen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | | | - Mohsen Sadatsafavi
- Respiratory Evaluation Sciences Program, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ruth Murray
- Optimum Patient Care Global, Cambridge, United Kingdom
| | | | - Nasloon Ali
- Optimum Patient Care Global, Cambridge, United Kingdom; Observational and Pragmatic Research Institute, Singapore
| | - Con Ariti
- Optimum Patient Care Global, Cambridge, United Kingdom; Observational and Pragmatic Research Institute, Singapore
| | - Lakmini Bulathsinhala
- Optimum Patient Care Global, Cambridge, United Kingdom; Observational and Pragmatic Research Institute, Singapore
| | | | - J Mark FitzGerald
- Department of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Mona Al-Ahmad
- Microbiology Department, Faculty of Medicine, Kuwait University, Al-Rashed Allergy Center, Ministry of Health, Kuwait City, Kuwait
| | - Alan Altraja
- Department of Pulmonology, University of Tartu and Lung Clinic, Tartu University Hospital, Tartu, Estonia
| | - Riyad Al-Lehebi
- Department of Pulmonology, King Fahad Medical City, Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Mohit Bhutani
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Leif Bjermer
- Respiratory Medicine and Allergology, Department of Clinical Sciences, Skåne University Hospital, Lund University, Lund, Sweden
| | - Anne-Sofie Bjerrum
- Department of Respiratory Medicine and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Arnaud Bourdin
- PhyMedExp, Univ Montpellier, CNRS, INSERM, CHU Montpellier, Montpellier, France
| | - Anna von Bülow
- Respiratory Research Unit, Bispebjerg University Hospital, Copenhagen, Denmark
| | - John Busby
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland
| | - Giorgio Walter Canonica
- Personalized Medicine, Asthma and Allergy, Humanitas Clinical and Research Center IRCCS, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Victoria Carter
- Optimum Patient Care Global, Cambridge, United Kingdom; Observational and Pragmatic Research Institute, Singapore
| | | | - Borja G Cosio
- Son Espases University Hospital-IdISBa-Ciberes, Mallorca, Spain
| | - Richard W Costello
- Department of Respiratory Medicine, RCSI Clinical Research Centre, Smurfit Building Beaumont Hospital, Dublin, Ireland
| | - João A Fonseca
- Health Information and Decision Sciences Department (MEDCIDS) & Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine of University of Porto, Porto, Portugal
| | - Peter G Gibson
- Australian Severe Asthma Network, Priority Research Centre for Healthy Lungs, University of Newcastle, Newcastle, New South Wales, Australia; Department of Respiratory and Sleep Medicine, Hunter Medical Research Institute, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Kwang-Ha Yoo
- KonKuk University School of Medicine, Seoul, Korea
| | - Liam G Heaney
- Wellcome-Wolfson Centre for Experimental Medicine, Queen's University Belfast, Belfast, Northern Ireland
| | - Enrico Heffler
- Personalized Medicine, Asthma and Allergy, Humanitas Clinical and Research Center IRCCS, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Mark Hew
- Allergy, Asthma & Clinical Immunology Service, Alfred Health, Melbourne, Victoria, Australia; Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Ole Hilberg
- Medical Department, Vejle University Hospital, Vejle, Denmark
| | - Flavia Hoyte
- Division of Allergy & Clinical Immunology, Department of Medicine, National Jewish Health, Denver, Colo; Division of Allergy & Clinical Immunology, Department of Medicine, University of Colorado School of Medicine, Aurora, Colo
| | - Takashi Iwanaga
- Center for General Medical Education and Clinical Training, Kindai University Hospital, Osakasayama, Japan
| | - David J Jackson
- UK Severe Asthma Network and National Registry, Guy's and St Thomas' NHS Trust, London, United Kingdom; School of Immunology & Microbial Sciences, King's College London, London, United Kingdom
| | - Rupert C Jones
- Research and Knowledge Exchange, Plymouth Marjon University, Plymouth, United Kingdom
| | - Mariko Siyue Koh
- Respiratory & Critical Care Medicine, Singapore General Hospital, Singapore; SingHealth Duke-NUS Lung Centre, Singapore
| | - Piotr Kuna
- Division of Internal Medicine, Asthma and Allergy Medical University of Łódź, Łódź, Poland
| | | | - Sverre Lehmann
- Section of Thoracic Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Lauri Lehtimäki
- Allergy Centre, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Juntao Lyu
- Observational and Pragmatic Research Institute, Singapore; Optimum Patient Care, Brisbane, Queensland, Australia
| | - Bassam Mahboub
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates; Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates
| | - Jorge Maspero
- Clinical Research for Allergy and Respiratory Medicine, CIDEA Foundation, Buenos Aires, Argentina; University Career of Specialists in Allergy and Clinical Immunology at the Buenos Aires University School of Medicine, Buenos Aires, Argentina
| | | | - Anthony Newell
- Observational and Pragmatic Research Institute, Singapore; Optimum Patient Care, Brisbane, Queensland, Australia
| | | | - Nikolaos G Papadopoulos
- Division of Infection, Immunity & Respiratory Medicine, University of Manchester, Manchester, United Kingdom; Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
| | - Andriana I Papaioannou
- 2nd Respiratory Medicine Department, National and Kapodistrian University of Athens Medical School, Attikon University Hospital, Athens, Greece
| | - Luis Perez-de-Llano
- Pneumology Service, Lucus Augusti University Hospital, EOXI Lugo, Monforte, Cervo, Lugo, Spain; Biodiscovery Research Group, Health Research Institute of Santiago de Compostela, Santiago de Compostela, Spain
| | - Diahn-Warng Perng Steve
- Division of Clinical Respiratory Physiology, Chest Department, Taipei Veterans General Hospital, Taipei, Taiwan; COPD Assembly of the Asian Pacific Society of Respirology, Tokyo, Japan
| | - Matthew Peters
- Department of Thoracic Medicine, Concord Hospital, Sydney, New South Wales, Australia
| | - Paul E Pfeffer
- Department of Respiratory Medicine, Barts Health NHS Trust, London, United Kingdom; Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Celeste M Porsbjerg
- Respiratory Research Unit, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Todor A Popov
- University Hospital "Sv. Ivan Rilski," Sofia, Bulgaria
| | - Chin Kook Rhee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sundeep Salvi
- Pulmocare Research and Education Foundation, Pune, Maharashtra, India
| | - Camille Taillé
- Department of Respiratory Diseases, Bichat Hospital, AP-HP Nord-Université de Paris, Paris, France
| | - Christian Taube
- Department of Pulmonary Medicine, University Medical Center Essen-Ruhrlandklinik, Essen, Germany
| | - Carlos A Torres-Duque
- CINEUMO, Respiratory Research Center, Fundación Neumológica Colombiana, Bogotá, Colombia
| | - Charlotte Ulrik
- Department of Respiratory Medicine, Copenhagen University Hospital-Hvidovre, Hvidovre, Denmark
| | - Seung-Won Ra
- Division of Pulmonology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Eileen Wang
- Division of Allergy & Clinical Immunology, Department of Medicine, National Jewish Health, Denver, Colo; Division of Allergy & Clinical Immunology, Department of Medicine, University of Colorado School of Medicine, Aurora, Colo
| | - Michael E Wechsler
- NJH Cohen Family Asthma Institute, Department of Medicine, National Jewish Health, Denver, Colo
| | - David B Price
- Optimum Patient Care Global, Cambridge, United Kingdom; Observational and Pragmatic Research Institute, Singapore; Division of Applied Health Sciences, Centre of Academic Primary Care, University of Aberdeen, Aberdeen, United Kingdom.
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Kim Y, An TJ, Park YB, Kim K, Cho DY, Rhee CK, Yoo KH. COPD is not associated with a poor prognosis in COVID-19. Tuberc Respir Dis (Seoul) 2021; 85:74-79. [PMID: 34775736 PMCID: PMC8743630 DOI: 10.4046/trd.2021.0121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/15/2021] [Indexed: 01/08/2023] Open
Abstract
Background The effect of underlying chronic obstructive pulmonary disease (COPD) on coronavirus disease 2019 (COVID-19) during a pandemic is controversial. The purpose of this study was to examine the prognosis of COVID-19 according to the underlying COPD. Methods COVID-19 patients were assessed using nationwide health insurance data. Comorbidities were evaluated using the modified Charlson Comorbidity Index (mCCI) which excluded COPD from conventional CCI scores. Baseline characteristics were assessed. Univariable and multiple logistic and linear regression analyses were performed to determine effects of variables on clinical outcomes. Ages, sex, mCCI, socioeconomic status, and underlying COPD were selected as variables. Results COPD patients showed older age (71.3±11.6 years vs. 47.7±19.1 years, p<0.001), higher mCCI (2.6±1.9 vs. 0.8±1.3, p<0.001), and higher mortality (22.9% vs. 3.2%, p<0.001) than non-COPD patients. The intensive care unit admission rate and hospital length of stay were not significantly different between the two groups. All variables were associated with mortality in univariate analysis. However, underlying COPD was not associated with mortality unlike other variables in the adjusted analysis. Older age (odds ratio [OR], 1.12; 95% confidence interval [CI], 1.11–1.14; p<0.001), male sex (OR, 2.29; 95% CI, 1.67–3.12; p<0.001), higher mCCI (OR, 1.30; 95% CI, 1.20–1.41; p<0.001), and medical aid insurance (OR, 1.55; 95% CI, 1.03–2.32; p=0.035) were associated with mortality. Conclusion Underlying COPD is not associated with a poor prognosis of COVID-19.
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Affiliation(s)
- Youlim Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Konkuk University, Seoul, Korea.,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea
| | - Tai Joon An
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal medicine, Yeouido St. Mary`s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong Bum Park
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal medicine, Seoul St. Mary`s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Do Yeon Cho
- Big Data Research Division, Health Insurance Review and Assessment Service, Wonju, Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal medicine, Seoul St. Mary`s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Konkuk University, Seoul, Korea
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An TJ, Kim Y, Park YB, Kim K, Cho DY, Yoo KH, Rhee CK. Inhaled corticosteroid is not associated with a poor prognosis in COVID-19. Respirology 2021; 26:812-815. [PMID: 34173692 PMCID: PMC8447022 DOI: 10.1111/resp.14108] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 04/07/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Tai Joon An
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Youlim Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea
| | - Yong Bum Park
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Republic of Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Do Yeon Cho
- Big Data Research Division, Health Insurance Review and Assessment Service, Wonju, Republic of Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University Hospital, School of Medicine, Konkuk University, Seoul, Republic of Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Park SJ, Han HS, Shin SH, Yoo KH, Li K, Kim BJ, Seo SJ, Park KY. Adverse skin reactions due to use of face masks: a prospective survey during the COVID-19 pandemic in Korea. J Eur Acad Dermatol Venereol 2021; 35:e628-e630. [PMID: 34131961 PMCID: PMC8447351 DOI: 10.1111/jdv.17447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S H Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Han HS, Park JW, Yoo KH, Kim BJ. A phase I clinical trial to evaluate the safety of HU-045 for treating moderate-to-severe glabellar lines: a pilot study. J Eur Acad Dermatol Venereol 2021; 35:e614-e617. [PMID: 34014571 DOI: 10.1111/jdv.17369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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7
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Park SJ, Park JW, Ahn GR, Choi SY, Yoo KH, Li K, Kim BJ. A study of the microbiological profile of filler-induced skin necrosis. Clin Exp Dermatol 2021; 46:901-905. [PMID: 33763910 DOI: 10.1111/ced.14653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
Skin necrosis is one of the most severe complications following filler injections, and can result in permanent aesthetic defects. Although an increasing number of studies have addressed the management of dermal filler complications, no study has described the spectrum of microbial pathogens. The aim of this study was to delineate the bacterial profile and prognostic factors of filler-related skin necrosis by reviewing the clinical and microbiological features of these patients. A retrospective medical record review of patients undergoing treatment for skin necrosis induced by fillers was conducted. In total, 10 cases were identified, with injection sites being the nasolabial fold (70%; n = 7), nasal dorsum (20%; n = 2) and nasal tip (10%; n = 1). Reviewing the culture results, the true culture-positive rate was found to be 50% after cases of contamination were excluded. To avoid permanent sequelae, all physicians should be aware of possible secondary infections when treating filler-induced skin necrosis.
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Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - G R Ahn
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S Y Choi
- Department of Dermatology, Seoul Paik Hospital, Inje University, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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Yoo KH, Park SJ, Han HS, Won CH, Lee YW, Kim BJ. Randomized, double-blind, active-controlled, multicentre, phase III clinical trial with two stages to assess the safety and efficacy of letibotulinum toxin a vs. onabotulinum toxin a for subjects with moderate to severe crow's feet. J Eur Acad Dermatol Venereol 2021; 35:1587-1594. [PMID: 33721365 DOI: 10.1111/jdv.17217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/24/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Letibotulinum toxin A (LeBA) was approved by the Ministry of Food and Drug Safety (known as the Korea Food & Drug Administration) for cosmetic indications in 2012. However, the efficacy and safety of this newly introduced LeBA have not been investigated in crow's feet lines (CFL) treatment and standardization before its universal use. OBJECTIVE The aim of this multicentre, double-blind, randomized, parallel, active-controlled Phase III clinical trial with two stages (ClinicalTrials.gov identifier: NCT03408236) was to investigate the non-inferiority of LeBA vs. the existing onabotulinum toxin A (OnBA) for the treatment of CFL. METHODS A total of 240 subjects were randomized to either the test (LeBA) or control (OnBA) group. At the baseline and at weeks 4 while maximum smiling (primary efficacy assessment), 8, 12 and 16, investigator's on-site evaluation, independent evaluator, evaluation by the subjects, subjects' satisfaction assessment and safety assessment were performed. RESULTS At week 4, the response rate of primary efficacy assessment was 69.75% and 68.33% in the test (LeBA) and control (OnBA) groups, respectively, without a significant difference. Other minor secondary evaluation results showed significant differences suggesting that LeBA offered better improvement than OnBA, but the overall results did not show significant differences between the two groups. CONCLUSION This study showed that LeBA was as effective and safe as OnBA for the treatment of CFL at the same doses.
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Affiliation(s)
- K H Yoo
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - S J Park
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - H S Han
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - C H Won
- Department of Dermatology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Y W Lee
- Department of Dermatology, College of Medicine, Konkuk University Hospital, Seoul, Korea
| | - B J Kim
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
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9
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Hong JK, Han HS, Yoo KH. Inflammatory linear verrucous epidermal naevus successfully treated with a combination of triple topical agents (corticosteroid, calcipotriol and 20% urea). Clin Exp Dermatol 2021; 46:940-942. [PMID: 33577097 DOI: 10.1111/ced.14603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 11/28/2022]
Affiliation(s)
- J K Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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10
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Shin HJ, Kim TO, Kim YI, Kim SH, Kim HK, Kim YH, Byun MK, Jung KS, Yoo KH, Lee JS, Lim SC. The paradoxical response to short-acting bronchodilator administration in patients with chronic obstructive pulmonary disease. J Thorac Dis 2021; 13:511-520. [PMID: 33717524 PMCID: PMC7947541 DOI: 10.21037/jtd-20-985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background There are a few studies about paradoxical bronchodilator response (BDR), which means a decrease in forced expiratory volume in 1 second (FEV1) or forced vital capacity (FVC) after short-acting bronchodilator administration in patients with chronic obstructive pulmonary disease (COPD). We evaluated the effect of paradoxical BDR on the clinical outcomes of COPD patients in South Korea. Methods We analyzed the KOrea COpd Subgroup Study team (KOCOSS) cohort data in South Korea between January 2012 and December 2017. BDR was defined as at least a 12% and 200-mL reduction in FEV1 or FVC after bronchodilator administration. Results A total of 1,991 patients were included in this study. A paradoxical BDR was noted in 57 (2.9%) patients and was independently associated with worse dyspnea and poor quality of life. High C-reactive protein (CRP) levels were associated with a paradoxical BDR (OR, 1.05; 95% CI, 1.01-1.09; P=0.003). However, paradoxical BDR was not associated with severe acute exacerbations. Pre-bronchodilator FEV1 (L) showed a higher area under the curve (AUC) for predicting severe acute exacerbations than the post-bronchodilator FEV1 (L) in the paradoxical BDR group (0.788 vs. 0.752). Conclusion A paradoxical reduction of FEV1 or FVC after bronchodilator administration may be associated with chronic inflammation in the airway and independently associated with worse respiratory symptoms and poor quality of life.
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Affiliation(s)
- Hong-Joon Shin
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Kwangju, South Korea
| | - Tae-Ok Kim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Kwangju, South Korea
| | - Yu-Il Kim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Kwangju, South Korea
| | - Sang-Hoon Kim
- Department of Internal Medicine, Eulji General Hospital, Eulji University School of Medicine, Seoul, South Korea
| | - Hyun Kuk Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, South Korea
| | - Yong-Hyun Kim
- Division of Allergy and Pulmonology, Department of Internal Medicine, Bucheon St Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, South Korea
| | - Min Kwang Byun
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, South Korea
| | - Ki-Suck Jung
- Division of Pulmonary Medicine, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University Medical School, Anyang, South Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, South Korea
| | - Jae Seung Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, South Korea
| | - Sung-Chul Lim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Kwangju, South Korea
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11
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Park SJ, Park JW, Park KY, Li K, Seo SJ, Kim BJ, Yoo KH. Systemic contact dermatitis induced by Rhus allergens in Korea: exercising caution in the consumption of this nutritious food. Clin Exp Dermatol 2020; 46:324-327. [PMID: 32974941 DOI: 10.1111/ced.14458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/11/2020] [Accepted: 09/16/2020] [Indexed: 11/29/2022]
Abstract
Systemic contact dermatitis (SCD) develops when a person who was previously sensitized to an allergen is exposed to the same allergen via the systemic route. In East Asia, the use of lacquer for polishing furniture is common and a part of the traditional culture. Contact exposure to tableware polished with Rhus lacquer may lead to sensitization. In Korea, SCD is commonly observed after systemic exposure to Rhus, a nutritious food item consumed because of the common belief of it improving the immune system. In this study, we reviewed the medical records of 21 Korean patients with SCD caused by Rhus ingestion. We found that the most significant epidemiological factor for SCD was the season of the year. Furthermore, 66.67% of the patients presented with leucocytosis and 23.81% showed increased liver enzyme levels. It is important to educate people on the risks associated with the systemic ingestion of Rhus.
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Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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12
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Park HJ, Byun MK, Kim T, Rhee CK, Kim K, Kim BY, Ahn SI, Jo YU, Yoo KH. Frequent Outpatient Visits Prevent Exacerbation of Chronic Obstructive Pulmonary Disease. Sci Rep 2020; 10:6049. [PMID: 32269274 PMCID: PMC7142121 DOI: 10.1038/s41598-020-63064-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/23/2020] [Indexed: 11/09/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory airway disease requiring frequent outpatient visits and lifelong management. We aimed to evaluate the roles of frequent outpatient visits in prognosis of COPD. We used claims data in the national medical insurance review system provided by the Health Insurance Review and Assessment Service of Korea from May 1, 2014 to April 30, 2015. A definition of COPD was used based on the diagnosis code and medication. Frequent visitors were defined as subjects who visited the outpatient clinic for COPD three or more times per year. Among 159,025 subjects, 117,483 (73.9%) were classified as frequent visitors. Frequent visitors underwent pulmonary function tests and used various inhalers more often than did infrequent visitors. The rates of COPD exacerbation requiring admission to a general ward, emergency room, or intensive care unit were significantly lower in frequent visitors than in infrequent visitors. In multivariable analysis, frequent visits were identified as an independent factor preventing COPD exacerbation that required admission to a ward (odds ratio [OR], 0.387), emergency room, (OR, 0.558), or intensive care unit (OR, 0.39) (all P < 0.001). In conclusion, we showed frequent outpatient visits reduce the risk of COPD exacerbation by 45-60%.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
| | - Taehee Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho, South Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seocho, South Korea
| | - Bo Yeon Kim
- Healthcare Review and Assessment Committee, Health Insurance Review & Assessment Service, Seoul, Korea
| | - Sang In Ahn
- Division of Chronic Disease Assessment, Health Insurance Review & Assessment Service, Seoul, Korea
| | - Yon U Jo
- Division of Quality Assessment Management, Health Insurance Review & Assessment Service, Seoul, Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, South Korea
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13
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Park HY, Kang D, Shin SH, Yoo KH, Rhee CK, Suh GY, Kim H, Shim YM, Guallar E, Cho J, Kwon OJ. Chronic obstructive pulmonary disease and lung cancer incidence in never smokers: a cohort study. Thorax 2020; 75:506-509. [PMID: 32241883 PMCID: PMC7279186 DOI: 10.1136/thoraxjnl-2019-213732] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 11/25/2019] [Accepted: 12/31/2019] [Indexed: 12/31/2022]
Abstract
There has been limited evidence for the association between chronic obstructive pulmonary disease (COPD) and the incidence of lung cancer among never smokers. We aimed to estimate the risk of lung cancer incidence in never smokers with COPD, and to compare it with the risk associated with smoking. This cohort study involved 338 548 subjects, 40 to 84 years of age with no history of lung cancer at baseline, enrolled in the National Health Insurance Service National Sample Cohort. During 2 355 005 person-years of follow-up (median follow-up 7.0 years), 1834 participants developed lung cancer. Compared with never smokers without COPD, the fully-adjusted hazard ratios (95% CI) for lung cancer in never smokers with COPD, ever smokers without COPD, and ever smokers with COPD were 2.67 (2.09 to 3.40), 1.97 (1.75 to 2.21), and 6.19 (5.04 to 7.61), respectively. In this large national cohort study, COPD was also a strong independent risk factor for lung cancer incidence in never smokers, implying that COPD patients are at high risk of lung cancer, irrespective of smoking status.
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Affiliation(s)
- Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Danbee Kang
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul, South Korea.,Department of Clinical Research and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Sun Hye Shin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, South Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Gee Young Suh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hojoong Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young Mog Shim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Eliseo Guallar
- Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Juhee Cho
- Center for Clinical Epidemiology, Samsung Medical Center, Seoul, South Korea .,Department of Clinical Research and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea.,Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - O Jung Kwon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Abstract
AIM This study study aimed to investigate the effects of explicit and tacit knowledge sharing on clinical decision-making abilities and the mediating role of trust among registered nurses at Korean hospitals. BACKGROUND Decision-making abilities comprise a key area of nursing practice and link nurses' perceptions with behaviours. INTRODUCTION Tacit knowledge is embedded within an individual and cannot be expressed or transmitted to other people in a specific form. Over time, new nurses gradually gain experience and tacit knowledge and become experts. Trust, an organizational characteristic, may serve as a potential mediator in the association between knowledge sharing and decision-making abilities among nurses. However, few studies have investigated the mediatory role of trust in this association. METHOD The data were collected from 210 nurses selected via random sampling. The research instrument in the model included Knowledge-Sharing Behavior, Trust, and Clinical Decision-Making in Nursing Scale. Structural equation modelling was used to analyse the collected data. FINDINGS The study findings showed that explicit knowledge sharing directly affects decision-making abilities, whereas tacit knowledge sharing is only associated with decision-making abilities when trust plays a mediating role. DISCUSSION A higher level of organizational trust can improve clinical decision-making abilities via tacit knowledge sharing. CONCLUSION This study demonstrated that unlike explicit knowledge, which is shared more easily, tacit knowledge sharing does not directly lead to clinical decision-making abilities. A higher level of organizational trust leads to a stronger beneficial effect of tacit knowledge sharing on clinical decision-making abilities. IMPLICATIONS FOR NURSING AND HEALTH POLICY These findings concerning the mediatory role of trust on the association between knowledge sharing and clinical decision-making abilities provide new knowledge that will allow nurses, managers, and researchers to support the clinical decision-making abilities of nurses.
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Affiliation(s)
- K H Yoo
- School of Nursing of Xi'an Medical University, Xi'an, China
| | - Y A Zhang
- School of Nursing of Xi'an Medical University, Xi'an, China
| | - E K Yun
- College of Nursing Science, Kyung Hee University, Seoul, Korea
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15
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Kim TO, Shin HJ, Kim YI, Rhee CK, Lee WY, Lim SY, Ra SW, Jung KS, Yoo KH, Park SJ, Lim SC. Adherence to the GOLD Guideline in COPD Management of South Korea: Findings from KOCOSS Study 2011-2018. Chonnam Med J 2019; 55:47-53. [PMID: 30740340 PMCID: PMC6351324 DOI: 10.4068/cmj.2019.55.1.47] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 01/28/2023] Open
Abstract
The guidelines for chronic obstructive pulmonary disease (COPD) treatment are important for the management of the disease. However, studies regarding the treatment adherence to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines have been scarce in Korea. Therefore, to examine the adherence to the GOLD guidelines, we examined the patterns of prescribed medication in COPD patients from 2011 to 2018. Patients were classified as having been appropriately and inappropriately treated (overtreatment or undertreatment) for the GOLD group. Appropriate medical therapy was defined as using the first choice or alternative choice drug recommended in the GOLD guidelines. Inappropriate therapy was classified as overtreatment or undertreatment in accordance with the categorization in the GOLD guidelines. According to treatment of 2011 GOLD guidelines, there was inappropriate treatment in 52.3% in group A, 47.3% in group B, 56.3% in group C, and 17.8% in group D. According to treatment of 2017 GOLD guidelines, there was inappropriate treatment in 66.7% in group A, 45.3% in group B, 14.3% in group C, and 24.0% in group D. The common type of inappropriate COPD treatment is overtreatment, with inhaled corticosteroid (ICS) containing regimens. In conclusions, adherence to the GOLD guideline by the pulmonologist in clinical practice is still low in Korea. Therefore, we need better strategies to both optimize the use of the guidelines and adhere to the guidelines as well.
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Affiliation(s)
- Tae-Ok Kim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Hong-Joon Shin
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Yu-Il Kim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Chin-Kook Rhee
- Department of Internal Medicine, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Won-Yeon Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Seong-Yong Lim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung-Won Ra
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and the Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ki-Suck Jung
- Division of Pulmonary Medicine, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University Medical School, Anyang, Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Seoung-Ju Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Sung-Chul Lim
- Division of Pulmonary Medicine, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
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16
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Rhee CK, van Boven JFM, Yau Ming SW, Park HY, Kim DK, Park HS, Ling JZJ, Yoo KH, Price DB. Does Changing Inhaler Device Impact Real-Life Asthma Outcomes? Clinical and Economic Evaluation. J Allergy Clin Immunol Pract 2018; 7:934-942. [PMID: 30292924 DOI: 10.1016/j.jaip.2018.09.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 09/07/2018] [Accepted: 09/20/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Inhaler usability and deposition differ between devices. Change of device may therefore have an impact on clinical and economic outcomes. OBJECTIVE To characterize clinical and economic asthma outcomes surrounding the change from a dry powder inhaler (DPI) to a pressurized metered-dose inhaler (pMDI) for fixed-dose combination inhaled corticosteroid/long-acting β agonist (FDC ICS/LABA) treatment. METHODS Three retrospective cohort substudies using 2010 to 2015 data from the Korean Health Insurance and Review Assessment Service database were performed. Patients with asthma who received an FDC ICS/LABA pMDI for the first time after initially being on FDC ICS/LABA DPI were included. The following outcomes were assessed: (1) persistence of change to pMDI over 6 months, (2) clinical outcomes during the year after the change compared with the baseline year; and (3) noninferiority comparison of costs and effectiveness between patients changing to a pMDI and matched patients who continued their DPI. RESULTS Patients who change inhalers seem to represent a more severe subpopulation. Fifty-eight percent of patients (95% CI, 56-60) persisted with the change. After the change in therapy, an increased proportion of patients (58.3%) remained free from severe exacerbations compared with the year before (47.4%; P < .001). Patients who changed to pMDIs had significantly less severe exacerbations, acute respiratory events, and lower short-acting β agonist inhaler average daily dose, but higher average ICS daily dose (all P < .05), compared with matched patients remaining on a DPI. Total costs were similar between patients who changed to pMDI therapy compared with those remaining on a DPI. CONCLUSION Changing from a DPI to a pMDI for FDC ICS/LABA asthma treatment can be as effective and cost-effective as remaining on a DPI.
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Affiliation(s)
- Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Job F M van Boven
- Department of General Practice and Elderly Care Medicine, Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Unit of PharmacoEpidemiology & PharmacoEconomics, Department of Pharmacy, University of Groningen, Groningen, The Netherlands
| | | | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Samsung Medical Center, Sungkyun Kwan University School of Medicine, Seoul, Korea
| | - Deog Kyeom Kim
- Division of Pulmonary and Critical Care Medicine, Seoul National University, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Hae-Sim Park
- Allergy and Clinical Immunology Department, Ajou University Medical Center, Seoul, Korea
| | | | - Kwang-Ha Yoo
- Division of Pulmonary and Allergy, Department of Internal Medicine, School of Medicine, Konkuk University, Seoul, Korea.
| | - David B Price
- Observational and Pragmatic Research Institute, Singapore; Centre of Academic Primary Care, Division of Applied Health Sciences, University of Aberdeen, Aberdeen, United Kingdom
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Park HJ, Byun MK, Rhee CK, Kim K, Kim HJ, Yoo KH. Significant predictors of medically diagnosed chronic obstructive pulmonary disease in patients with preserved ratio impaired spirometry: a 3-year cohort study. Respir Res 2018; 19:185. [PMID: 30249256 PMCID: PMC6154818 DOI: 10.1186/s12931-018-0896-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/18/2018] [Indexed: 11/29/2022] Open
Abstract
Background Preserved ratio impaired spirometry (PRISm) is an incompletely understood respiratory condition. We investigated the incidence and significant predictive factors of chronic obstructive pulmonary disease (COPD) in PRISm patients. Methods From 11,922 subjects registered in the Korea National Health and Nutrition Examination Survey, never or light smokers, young subjects, and those already medically diagnosed with COPD (defined by ICD-10 code and prescribed medication) were excluded. The 2666 remaining subjects were categorized into PRISm (normal forced expiratory volume in the first second [FEV1]/force vital capacity [FVC] [≥ 0.7] and low FEV1 (< 80%); n = 313); normal (n = 1666); and unrevealed COPD groups (FEV1/FVC ratio < 0.7; n = 687). These groups were compared using matched Health Insurance Review and Assessment Service data over a 3-year follow-up. Results COPD incidence in PRISm patients (17/1000 person-year [PY]) was higher than that in normal subjects (4.3/1000 PY; P < 0.001), but lower than that in unrevealed COPD patients (45/1000 PY; P < 0.001). PRISm patients visited hospitals, took COPD medication, and incurred hospitalization costs more frequently than normal subjects, but less frequently than unrevealed COPD patients. In the overall sample, age, FVC, FEV1, dyspnea, and wheezing were significant predictors of COPD, but in PRISm patients, only age (OR, 1.14; P = 0.002) and wheezing (OR, 4.56; P = 0.04) were significant predictors. Conclusion PRISm patients are likely to develop COPD, and should be monitored carefully, especially older patients and those with wheezing, regardless of lung function.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 06273, Korea
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 06273, Korea.
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyung Jung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 06273, Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
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18
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Park HJ, Byun MK, Kim HJ, Ahn CM, Rhee CK, Kim K, Kim BY, Bae HW, Yoo KH. Regular follow-up visits reduce the risk for asthma exacerbation requiring admission in Korean adults with asthma. Allergy Asthma Clin Immunol 2018; 14:29. [PMID: 30002684 PMCID: PMC6038276 DOI: 10.1186/s13223-018-0250-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/04/2018] [Indexed: 11/13/2022]
Abstract
BACKGROUND Asthma requires regular follow-up visits and sustained medication use. Although several studies have reported the importance of adherence to medication and compliance with the treatment, none to date have reported the importance of regular follow-up visits. We investigated the effects of regular clinical visits on asthma exacerbation. METHODS We used claims data in the national medical insurance review system provided by the Health Insurance Review and Assessment Service of Korea. We included subjects aged ≥ 15 years with a diagnosis of asthma, and who were prescribed asthma-related medication, from July 2013 to June 2014. Regular visitors (frequent visitors) were defined as subjects who visited the hospital for follow-up of asthma three or more times per year. RESULTS Among 729,343 subjects, 496,560 (68.1%) were classified as regular visitors. Old age, male sex, lack of medical aid insurance, attendance of a tertiary hospital, a high Charlson comorbidity index, and a history of admission for exacerbated asthma in the previous year were significant determining factors for regular visitor status. When we adjusted for all these factors, frequent visitors showed a lower risk of asthma exacerbation requiring general ward admission (odds ratio [OR] 0.48; 95% confidence interval [CI] 0.47-0.50; P < 0.001), emergency room admission (OR 0.83; 95% CI 0.79-0.86; P < 0.001), and intensive care unit admission (OR 0.49; 95% CI 0.44-0.54; P < 0.001) than infrequent visitors. CONCLUSIONS Regular clinical visits are significantly associated with a reduced risk of asthma exacerbation requiring hospital admission in Korean adults with asthma.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Hyung Jung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Chul Min Ahn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro Gangnam-gu, Seoul, 135-720 South Korea
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Kyungjoo Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Bo Yeon Kim
- Healthcare Review and Assessment Committee, Health Insurance Review & Assessment Service, Seoul, South Korea
| | - Hye Won Bae
- Division of Quality Assessment Management, Health Insurance Review & Assessment Service, Seoul, South Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, South Korea
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Kim MK, Lee SY, Park HS, Yoon HJ, Kim SH, Cho YJ, Yoo KH, Lee SK, Kim HK, Park JW, Park HW, Chung JH, Choi BW, Lee BJ, Chang YS, Jo EJ, Lee SY, Cho YS, Jee YK, Lee JM, Jung J, Park CS. A Randomized, Multicenter, Double-blind, Phase III Study to Evaluate the Efficacy on Allergic Rhinitis and Safety of a Combination Therapy of Montelukast and Levocetirizine in Patients With Asthma and Allergic Rhinitis. Clin Ther 2018; 40:1096-1107.e1. [PMID: 29945738 DOI: 10.1016/j.clinthera.2018.04.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/25/2018] [Accepted: 04/30/2018] [Indexed: 12/30/2022]
Abstract
PURPOSE The aim of this study was to evaluate the efficacy and safety of a fixed-dose combination of montelukast and levocetirizine in patients with perennial allergic rhinitis with mild to moderate asthma compared with the efficacy and safety of montelukast alone. METHODS This study was a 4-week, randomized, multicenter, double-blind, Phase III trial. After a 1-week placebo run-in period, the subjects were randomized to receive montelukast (10 mg/day, n = 112) or montelukast (10 mg/day)/levocetirizine (5 mg/day) (n = 116) treatment for 4 weeks. The primary efficacy end point was mean daytime nasal symptom score. Other efficacy end points included mean nighttime nasal symptom score, mean composite symptom score, overall assessment of allergic rhinitis by both subjects and physicians, forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC, asthma control test score, and the frequency of rescue medication used during the treatment period. FINDINGS Of 333 patients screened for this study, 228 eligible patients were randomized to treatment. The mean (SD) age of patients was 43.32 (15.02) years, and two thirds of subjects were female (66.67%). The demographic characteristics were similar between the treatment groups. Compared with the montelukast group, the montelukast/levocetirizine group reported significant reductions in mean daytime nasal symptom score (least squares mean [SE] of combination vs montelukast, -0.98 [0.06] vs -0.81 [0.06]; P = 0.045). For all other allergic rhinitis efficacy end points, the montelukast/levocetirizine group showed greater improvement than the montelukast group. Similar results were observed in overall assessment scores and in FEV1, FVC, FEV1/FVC, and asthma control test score changes from baseline for the 2 treatment groups. Montelukast/levocetirizine was well tolerated, and the safety profile was similar to that observed in the montelukast group. IMPLICATIONS The fixed-dose combination of montelukast and levocetirizine was effective and safe in treating perennial allergic rhinitis in patients with asthma compared with montelukast alone. ClinicalTrials.gov identifier: NCT02552667.
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Affiliation(s)
- Mi-Kyeong Kim
- Subdivision of Allergy, Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Sook Young Lee
- Division of Allergy, Department of Internal Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ho Joo Yoon
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Sang-Ha Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Young Joo Cho
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - Kwang-Ha Yoo
- Pulmonary-Allergy Division, Department of Internal Medicine, Konkuk University College of Medicine, Seoul, Republic of Korea
| | - Soo-Keol Lee
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Hee-Kyoo Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Republic of Korea
| | - Jung-Won Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin-Hong Chung
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Byoung Whui Choi
- Division of Respirology and Allergy, Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Byung-Jae Lee
- Division of Allergy, Department of Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Republic of Korea
| | - Yoon-Seok Chang
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Eun-Jung Jo
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University College of Medicine, Busan, Republic of Korea
| | - Sang-Yeub Lee
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - You Sook Cho
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Koo Jee
- Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Jong-Myung Lee
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Jina Jung
- Hanmi Pharmaceutical Co, Seoul, Republic of Korea
| | - Choon-Sik Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
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Cho SB, Park J, Zheng Z, Yoo KH, Kim H. Split-axilla comparison study of 0.5-MHz, invasive, bipolar radiofrequency treatment using insulated microneedle electrodes for primary axillary hyperhidrosis. Skin Res Technol 2018; 25:30-39. [PMID: 29790612 DOI: 10.1111/srt.12591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Energy-delivering devices can be used to induce thermal coagulation of the eccrine sweat glands for treating primary axillary hyperhidrosis (PAH). OBJECTIVE The objective of this study was to compare the efficacy and safety of invasive, bipolar radiofrequency (RF) treatment for PAH. METHODS A split-axilla study was performed to compare the clinical outcomes of 0.5 MHz, invasive, bipolar RF treatment with treatment settings of a longer conduction time and lower power (LC/LP) vs a shorter conduction time and higher power (SC/HP) for treating PAH. RESULTS The in vivo study revealed median hyperhidrosis disease severity scale scores of 1.5 (interquartile range [IQR], 1-2) at 1 month and 1 (IQR, 1-2) at 3 months after treatment with the LC/LP setting, compared to baseline. Meanwhile, the other side of the axillae treated with the SC/HP setting showed scores of 2 (IQR, 2-2) at 1 month and 2 (IQR, 1.25-2) at 3 months. Analysis via a linear mixed model revealed a significant interaction (group, P = .011; time, P < .001; and group × time, P = .048) between treatment group and time. CONCLUSION PAH can be effectively and safely treated with invasive, multilayered, multiple-pass, 0.5-MHz, bipolar RF treatment, particularly with LC/LP.
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Affiliation(s)
- S B Cho
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Kangskin Dermatology Clinic, Seoul, Korea
| | - J Park
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
| | - Z Zheng
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Department of Dermatology, Yanbian University Hospital, Yanji, China
| | - K H Yoo
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
| | - H Kim
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
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21
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Park YS, Lee CH, Kim YI, Ahn CM, Kim JO, Park JH, Lee SH, Kim JY, Chun EM, Jung TH, Yoo KH. Association between secondhand smoke exposure and hypertension in never smokers: a cross-sectional survey using data from Korean National Health and Nutritional Examination Survey V, 2010-2012. BMJ Open 2018; 8:e021217. [PMID: 29764884 PMCID: PMC5961559 DOI: 10.1136/bmjopen-2017-021217] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES Secondhand smoke (SHS) exposure is associated with cardiovascular disease. This study aims to determine the association between SHS exposure estimated by questionnaire and hypertension in Korean never smokers. SETTING Korean National Health and Nutrition Examination Survey (KNHANES) V was conducted from 2010 to 2012. PARTICIPANTS We selected the never smokers aged over 20 years who answered the question about the SHS exposure. PRIMARY AND SECONDARY MEASURES SHS exposure in both the home and work place was estimated using a self-reporting questionnaire. We investigated the association between SHS exposure and hypertension by using multivariate analysis. And we evaluated the mean systolic and diastolic blood pressure values according to SHS exposure after adjusting for possible confounding factors. All analyses were stratified by women and men. RESULTS There were 10 532 (women 8987 and men 1545) never smokers. We divided the subjects into three groups according to the amount of SHS exposure: none-group I, <2 hour/day-group II and ≥2 hour/day-group III. Using multivariate analysis, hypertension was more commonly associated with group III than group I in women (adjusted OR 1.50, 95% CI 1.00 to 2.04, p=0.011). Adjusted mean systolic and diastolic blood pressure values in women who were not taking antihypertensive medication were significantly elevated in group III by 2.3 and 1.7 mm Hg, respectively. CONCLUSION SHS exposure is significantly associated with hypertension in women never smokers.
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Affiliation(s)
- Young Sik Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Chang-Hoon Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Yu-Il Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Chul Min Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Ju Ock Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ju-Heon Park
- Department of Internal Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Sang Haak Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae Yeol Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Eun Mi Chun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Tae-Hoon Jung
- Department of Internal Medicine, Chilgok Kyungpook National University School of Medicine, Daegu, Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University College of Medicine, Seoul, Korea
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22
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Park HJ, Byun MK, Kim HJ, Ahn CM, Kim DK, Kim YI, Oh JY, Yoon HK, Yoo KH, Jung KS. History of pulmonary tuberculosis affects the severity and clinical outcomes of COPD. Respirology 2017; 23:100-106. [PMID: 28845558 DOI: 10.1111/resp.13147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/22/2017] [Accepted: 06/22/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Although an association between pulmonary tuberculosis (TB) and chronic obstructive pulmonary disease (COPD) has been suggested, studies on the effect of TB in COPD patients have not been conducted. We aimed to investigate the severity and clinical outcomes of COPD in patients with and without a history of TB. METHODS We retrospectively reviewed the data of 1784 patients with COPD in the Korean COPD Subtype Study cohort collected from December 2011 to January 2017 and followed up for 3 years. RESULTS Among the 1784 patients at baseline, the COPD assessment test (CAT) scores and total St George's Respiratory Questionnaire for COPD (SGRQc) scores were significantly higher in the prior TB group (n = 468) than in the non-TB group (n = 1316). Lung function and exacerbation prevalence were significantly poorer and higher, respectively, in the prior TB group than in the non-TB group. In a small-sized follow-up study, CAT scores (n = 318), SGRQc scores (n = 295) and lung function (n = 182) remained poorer, and exacerbation prevalence (n = 256) remained higher in the prior TB group over 3 years. The forced expiratory volume in 1 s in the prior TB group declined (-0.57%/year), whereas it improved (+0.93%/year) in the non-TB group (P for changes between the groups = 0.076). In the prior TB group, patients showed poorer lung function compared with the non-TB group regardless of having lung lesions visible or not on chest radiographs. CONCLUSION TB history negatively affected the severity of COPD, and a small-sized follow-up study showed that the changes were sustained for several years.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Yong-in Severance Hospital, Yonsei University College of Medicine, Yong-in, Republic of Korea
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung Jung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chul Min Ahn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Deog Kyeom Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yu Il Kim
- Pulmonary Division, Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jin Young Oh
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Hyoung Kyu Yoon
- Pulmonary Division, Department of Internal Medicine, Yeouido St Mary's Hospital, Seoul, Republic of Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Ki Suck Jung
- Division of Pulmonary Medicine, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University Medical School, Anyang, Republic of Korea
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23
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Kim CJ, Yoon HK, Park MJ, Yoo KH, Jung KS, Park JW, Lim SY, Shim JJ, Lee YC, Kim YS, Oh YM, Kim S, Yoo CG. Inhaled indacaterol for the treatment of COPD patients with destroyed lung by tuberculosis and moderate-to-severe airflow limitation: results from the randomized INFINITY study. Int J Chron Obstruct Pulmon Dis 2017; 12:1589-1596. [PMID: 28615931 PMCID: PMC5459963 DOI: 10.2147/copd.s128750] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background and objective Pulmonary tuberculosis (TB) is a risk factor for chronic obstructive pulmonary disease (COPD); however, few clinical studies have investigated treatment effectiveness in COPD patients with destroyed lung by TB. The Indacaterol effectiveness in COPD patients with Tuberculosis history (INFINITY) study assessed the efficacy and safety of once-daily inhaled indacaterol 150 µg for the treatment of Korean COPD patients with destroyed lung by TB and moderate-to-severe airflow limitation. Methods This was a multicenter, double-blind, parallel-group study, in which eligible patients were randomized (1:1) to receive either once-daily indacaterol 150 µg or placebo for 8 weeks. The primary efficacy endpoint was change from baseline in trough forced expiratory volume in 1 s at Week 8; the secondary endpoints included changes in transition dyspnea index score and St George’s Respiratory Questionnaire for COPD score at Week 8. Safety was evaluated over 8 weeks. Results Of the 136 patients randomized, 119 (87.5%) completed the study treatment. At Week 8, indacaterol significantly improved trough forced expiratory volume in 1 s versus placebo (treatment difference [TD] 140 mL, P<0.001). Statistically significant improvement in transition dyspnea index score (TD =0.78, P<0.05) and numerical improvement in St George’s Respiratory Questionnaire for COPD score (TD =−2.36, P=0.3563) were observed with indacaterol versus placebo at Week 8. Incidence of adverse events was comparable between the treatment groups. Conclusion Indacaterol provided significantly superior bronchodilation, significant improvement in breathlessness and improved health status with comparable safety versus placebo in Korean COPD patients with destroyed lung by TB and moderate-to-severe airflow limitation.
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Affiliation(s)
- Cheong-Ju Kim
- Department of Internal Medicine, National Health Insurance System Ilsan Hospital, Koyang
| | - Hyoung-Kyu Yoon
- Division of Pulmonology, Department of Internal Medicine, St Mary's Hospital, College of Medicine, The Catholic University of Korea
| | - Myung-Jae Park
- Division of Respiratory and Critical Care Medicine, Kyung Hee University Hospital, Kyung Hee University, Seoul
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Gwangjin-gu
| | - Ki-Suck Jung
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University Medical School, Anyang-si
| | - Jeong-Woong Park
- Division of Pulmonary and Allergy Medicine, Gachon University Gil Medical Center, Incheon
| | - Seong Yong Lim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine
| | - Jae Jeong Shim
- Department of Internal Medicine, Korea University College of Medicine, Seoul
| | - Yong Chul Lee
- Department of Internal Medicine and Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Jeonbuk
| | - Young-Sam Kim
- Department of Internal Medicine, Yonsei University College of Medicine
| | - Yeon-Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine
| | - Song Kim
- Clinical Development and Medical Affairs, Novartis Korea Ltd., Seoul
| | - Chul-Gyu Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Ko EJ, Hong JY, Kwon TR, Choi EJ, Jang YJ, Choi SY, Yoo KH, Kim SY, Kim BJ. Efficacy and safety of non-invasive body tightening with high-intensity focused ultrasound (HIFU). Skin Res Technol 2017; 23:558-562. [PMID: 28543777 DOI: 10.1111/srt.12371] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Noninvasive skin-tightening devices have become increasingly popular in response to increasing demand for improvements in skin laxity and tightening with minimal risk and recovery time. OBJECTIVE We evaluated the efficacy and safety of HIFU for skin tightening in the face and body. METHODS A total of 32 Korean subjects enrolled in this prospective clinical trial. The subjects were treated with HIFU to both cheeks, lower abdomen, and thigh. Skin elasticity was measured before and after treatment using a Cutometer (CT575, Courage and Khazaka® , Cologne, Germany). Three blinded, experienced dermatologists evaluated paired pre- and post-treatment (week 4 and 12) photographs according to the Global Aesthetic Improvement Scale (GAIS). Participants also completed self-assessments using GAIS. Subjects rated their pain on a numeric rating scale (NRS) immediately, 7 days, 4 weeks, and 12 weeks after treatment. RESULTS Skin elasticity measured via a Cutometer was significantly improved 12 weeks after treatment at all treated sites (P<.05). Both IGAIS and SGAIS showed significant improvements 12 weeks after treatment. Immediately after treatment the mean NRS score was 3.00±1.586, but no pain was reported at 4 and 12 weeks post-treatment. No serious adverse effects were observed during the follow-up period. CONCLUSION HIFU safely and effectively improves skin elasticity and clinical contouring of the face and body.
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Affiliation(s)
- E J Ko
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Dermatology, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea
| | - J Y Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - T-R Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - E J Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Y-J Jang
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - S Y Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Dermatology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, College of Medicine, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Korea
| | | | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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25
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Park HJ, Byun MK, Kim HJ, Kim JY, Kim YI, Yoo KH, Chun EM, Jung JY, Lee SH, Ahn CM. Dietary vitamin C intake protects against COPD: the Korea National Health and Nutrition Examination Survey in 2012. Int J Chron Obstruct Pulmon Dis 2016; 11:2721-2728. [PMID: 27843308 PMCID: PMC5098518 DOI: 10.2147/copd.s119448] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Vitamin C, as an antioxidant, has recently been suggested to provide protection against COPD; however, only few national cohort studies have investigated these effects. We aimed to confirm the protective effects of vitamin C against COPD in Korean patients. PATIENTS AND METHODS We analyzed the data of 3,283 adults aged ≥40 years (representing 23,541,704 subjects) who underwent pulmonary function tests and responded to questionnaires on smoking history and vitamin C intake, with stratification variables and sampling weight designated by the Korea 2012 National Health and Nutrition Examination Survey. RESULTS Among all the subjects, 512 (representing 3,459,679 subjects; 15.6%) were diagnosed as having COPD based on pulmonary function test results. Male gender, old age, residence in suburban/rural regions, low household income, low educational level, an occupation in agriculture or fisheries, and heavy smoking were significantly associated with COPD. Low intake of nutrients, including potassium, vitamin A, carotene, retinol, and vitamin C, was significantly associated with COPD. The prevalence of COPD in heavy smokers with the lowest quartile (Q1, <48.50 mg; 63.0%) and low-middle quartile (Q2, 48.50-84.38 mg; 56.4%) of vitamin C intake was significantly higher than that in subjects with the high-middle quartile (Q3, 84.38-141.63 mg; 29.5%) and highest quartile (Q4, >141.63 mg; 32.6%) of vitamin C intake (P=0.015). In multivariate analysis, male gender, old age, heavy smoking, and a low intake of vitamin C were significant independent risk factors for COPD. A significant reduction of 76.7% in COPD risk was observed with a Q3 vitamin C intake compared to Q1 vitamin C intake (odds ratio, 0.233; 95% confidence interval, 0.094-0.576) in heavy smokers. CONCLUSION This large-scale national study suggests that dietary vitamin C provides protection against COPD, independent of smoking history, in the general Korean population.
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Affiliation(s)
- Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Min Kwang Byun
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Hyung Jung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine
| | - Jae Yeol Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul
| | - Yu-Il Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine
| | - Eun Mi Chun
- Department of Internal Medicine, Ewha Womans University School of Medicine
| | - Ji Ye Jung
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine
| | - Sang Haak Lee
- Division of Pulmonology, Critical Care and Sleep Medicine, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chul Min Ahn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine
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Choi YB, Yi ES, Lee JW, Sung KW, Koo HH, Yoo KH. Immunosuppressive therapy versus alternative donor hematopoietic stem cell transplantation for children with severe aplastic anemia who lack an HLA-matched familial donor. Bone Marrow Transplant 2016; 52:47-52. [PMID: 27668766 DOI: 10.1038/bmt.2016.223] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 07/11/2016] [Accepted: 07/17/2016] [Indexed: 01/03/2023]
Abstract
We compared the outcomes of immunosuppressive treatment (IST) with those of alternative donor hematopoietic stem cell transplantation (HSCT) in children and adolescents with severe aplastic anemia (SAA). The medical records of 42 patients with SAA who received frontline IST (N=19) or frontline HSCT with an alternative donor (N=23) between 1998 and 2012 were analyzed retrospectively. Six patients responded in the frontline IST group, whereas 11 underwent salvage HSCT after IST failure. Twenty-one of 23 patients who underwent frontline HSCT survived without treatment failure. The estimated failure-free survival rate of the frontline HSCT group was higher than that of the frontline IST group (91.3% vs 30.7% respectively, P<0.001). Six of 11 patients who underwent salvage HSCT experienced event-free survival (EFS). The estimated EFS of the frontline HSCT group was higher than that of the salvage HSCT group (91.3% vs 50.9% respectively, P=0.015). The outcome of alternative donor HSCT was better than commonly reported rates, especially in patients who underwent frontline HSCT. These results suggest that frontline alternative donor HSCT may be a better treatment option than IST for children and adolescents with SAA who lack a human leukocyte Ag-matched familial donor.
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Affiliation(s)
- Y B Choi
- Department of Pediatrics, Chung-Ang University Hospital, Seoul, Korea
| | - E S Yi
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J W Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K W Sung
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H H Koo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Korea
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27
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Al-Sanea MM, Abdelazem AZ, Park BS, Yoo KH, Sim T, Kwon YJ, Lee SH. ROS1 Kinase Inhibitors for Molecular-Targeted Therapies. Curr Med Chem 2016; 23:142-60. [PMID: 26438251 DOI: 10.2174/0929867322666151006093623] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 03/22/2015] [Accepted: 10/05/2015] [Indexed: 11/22/2022]
Abstract
ROS1 is a pivotal transmembrane receptor protein tyrosine kinase which regulates several cellular processes like apoptosis, survival, differentiation, proliferation, cell migration, and transformation. There is increasing evidence supporting that ROS1 plays an important role in different malignancies including glioblastoma, colorectal cancer, gastric adenocarcinoma, inflammatory myofibroblastic tumor, ovarian cancer, angiosarcoma, and non small cell lung cancer; thus, ROS1 has become a potential drug discovery target. ROS1 shares about 49% sequence homology with ALK primary structure; therefore, wide range of ALK kinase inhibitors have shown in vitro inhibitory activity against ROS1 kinase. After Crizotinib approval by FDA for the management of ALK-rearranged lung cancer, ROS1-positive tumors have been focused. Although significant advancements have been achieved in understanding ROS1 function and its signaling pathways plus recent discovery of small molecules modulating ROS1 protein, a vital need of medicinal chemistry efforts is still required to produce selective and potent ROS1 inhibitors as an important therapeutic strategy for different human malignancies. This review focuses on the current knowledge about different scaffolds targeting ROS1 rearrangements, methods to synthesis, and some biological data about the most potent compounds that have delivered various scaffold structures.
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Affiliation(s)
| | | | | | | | | | | | - S H Lee
- Chemical Kinomics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea.
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Kim DK, Park YB, Oh YM, Jung KS, Yoo JH, Yoo KH, Kim KH. Korean Asthma Guideline 2014: Summary of Major Updates to the Korean Asthma Guideline 2014. Tuberc Respir Dis (Seoul) 2016; 79:111-20. [PMID: 27433170 PMCID: PMC4943894 DOI: 10.4046/trd.2016.79.3.111] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 12/20/2015] [Accepted: 12/21/2015] [Indexed: 11/30/2022] Open
Abstract
Asthma is a prevalent and serious health problem in Korea. Recently, the Korean Asthma Guideline has been updated by The Korean Academy of Tuberculosis and Respiratory Diseases (KATRD) in an effort to improve the clinical management of asthma. This guideline focuses on adult patients with asthma and aims to deliver up to date scientific evidence and recommendations to general physicians for the management of asthma. For this purpose, this guideline was updated following systematic review and meta-analysis of recent studies and adapting some points of international guidelines (Global Initiative for Asthma [GINA] report 2014, National Asthma Education and Prevention Program [NAEPP] 2007, British Thoracic Society [BTS/SIGN] asthma guideline 2012, and Canadian asthma guideline 2012). Updated issues include recommendations derived using the population, intervention, comparison, and outcomes (PICO) model, which produced 20 clinical questions on the management of asthma. It also covers a new definition of asthma, the importance of confirming various airflow limitations with spirometry, the epidemiology and the diagnostic flow of asthma in Korea, the importance and evidence for inhaled corticosteroids (ICS) and ICS/formoterol as a single maintenance and acute therapy in the stepwise management of asthma, assessment of severity of asthma and management of exacerbation, and an action plan to cope with exacerbation. This guideline includes clinical assessments, and treatment of asthma–chronic obstructive pulmonary disease overlap syndrome, management of asthma in specific conditions including severe asthma, elderly asthma, cough variant asthma, exercise-induced bronchial contraction, etc. The revised Korean Asthma Guideline is expected to be a useful resource in the management of asthma.
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Affiliation(s)
- Deog Kyeom Kim
- Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Bum Park
- Department of Pulmonary, Allergy and Critical Care Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Yeon-Mok Oh
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ki-Suck Jung
- Division of Pulmonary, Allergy and Critical Care Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ji Hong Yoo
- Department of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Kwan Hyung Kim
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
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Kim SM, Jung JW, Park IW, Ahn CM, Kim YI, Yoo KH, Chun EM, Jung JY, Park YS, Park JH, Kim JY. Gender Differences in Relations of Smoking Status, Depression, and Suicidality in Korea: Findings from the Korea National Health and Nutrition Examination Survey 2008-2012. Psychiatry Investig 2016; 13:239-46. [PMID: 27081387 PMCID: PMC4823202 DOI: 10.4306/pi.2016.13.2.239] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 07/20/2015] [Accepted: 07/24/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE As mental health problems may play an important role in initiating and maintaining cigarette smoking in females and there are an increasing number of female smokers, we evaluated the relationship between smoking status and mental health problems including depression and suicide ideation in women in Korea. METHODS We analyzed the 5-year cumulative data (19 years of age or older, n=32,184) from the Korean National Health and Nutrition Examination Survey (KNHANES) conducted from 2008 to 2012. Logistic regression analyses were used to evaluate associations between cigarette smoking status and mental health parameters while controlling for potentially confounding variables. RESULTS Among current smokers, females showed higher lifetime prevalence in having a depressive episode, a doctor-diagnosed major depression, a current diagnosis of depression, or receiving treatment for depression in comparison with males. In addition, females were more likely to report on having a depressive episode, suicidal ideation and attempts, and psychiatric counselling within the previous year, as compared to males. Female former smokers showed intermediate characteristics in parameters of mental health status within the previous year, ranking between lifetime non-smokers and the current smokers. CONCLUSION Identifying the factors related to mental health status among current smokers can increase opportunities for an early intervention and help reduce the prevalence of smoking and increase smoking cessation rates particularly in females. Developing adaptive coping strategies other than smoking in female youth is potentially important in reducing the initiation of smoking.
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Affiliation(s)
- Sun Mi Kim
- Department of Psychiatry, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jae-Woo Jung
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - In-Won Park
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Chul Min Ahn
- Division of Pulmonology, Department of Internal Medicine, Kangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu-Il Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Eun Mi Chun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea
| | - Ji Ye Jung
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Sik Park
- Division of Pulmonology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ju-Heon Park
- Department of Internal Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Jae Yeol Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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Yun HS, Rah WJ, Choi YJ, Kim JH, Oh JW, Kim HH, Chang YS, Yoo KH, Sohn KT. The development of patient-tailored asthma prediction model for the alarm system. Allergy Asthma Respir Dis 2016. [DOI: 10.4168/aard.2016.4.5.328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Hey-Suk Yun
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Wee Jin Rah
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Young Jin Choi
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Joo-Hwa Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Hyun-Hee Kim
- Department of Pediatrics, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea
| | - Yoon-Seok Chang
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kwang-Ha Yoo
- School of Medicine, Konkuk University, Seoul, Korea
| | - Keon-Tae Sohn
- Department of Statistics, Pusan National University, Busan, Korea
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Lee SW, Kim HJ, Yoo KH, Park YB, Park JY, Jung JY, Moon JY, Byun MK, Kim SW, Kim YH. Long-acting anticholinergic agents in patients with uncontrolled asthma: a systematic review and meta-analysis. Int J Tuberc Lung Dis 2015; 18:1421-30. [PMID: 25517806 DOI: 10.5588/ijtld.14.0275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A novel effective treatment is necessary for severe asthma. OBJECTIVE To review clinical trials examining the role of tiotropium in patients with poorly controlled asthma despite inhaled corticosteroid use with or without long-acting β₂-agonists. DESIGN A computerised search of electronic databases (Medline, EMBASE and Cochrane Central Register) was performed. Randomised controlled trials of at least a 4-week treatment duration with findings published in English were included. RESULTS Five studies involving 1635 patients were analysed. Compared with a placebo or a double dose of inhaled corticosteroids, the addition of tiotropium increased mean trough and peak forced expiratory volume in 1 second by 97 ml (95%CI 71-122) and 103 ml (95%CI 42-163), respectively. The mean differences in morning peak expiratory flow were 19.2 l/min (95%CI 11.8-26.6). Tiotropium also reduced the risk of severe acute exacerbation (OR 0.73, 95%CI 0.56-0.96) and improved Asthma Quality-of-Life Questionnaire score significantly by 0.10 (95%CI 0.04-0.16). There were no differences in serious adverse events. CONCLUSION The addition of tiotropium may be beneficial for patients with poorly controlled asthma, although exacerbation or safety issues should be clarified in long-term trials before its wide use in asthma.
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Affiliation(s)
- S W Lee
- Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H J Kim
- Institute for Evidence-based Medicine, Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - K H Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Y B Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - J-Y Park
- Department of Pulmonology and Critical Care Medicine, Won Kwang University Sanbon Hospital, Sanbon, Korea
| | - J Y Jung
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M K Byun
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ewha Medical Center and Ewha Medical Research Institute, Ewha Womans University, School of Medicine, Mokdong Hospital, Seoul, Korea
| | - Y H Kim
- Department of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea
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Choi SY, Yoo KH, Oh CT, Kwon TR, Choi EJ, Seok J, Kim BJ. High intensity focused ultrasound as a potential new modality for the treatment of pigmentary skin disorder. Skin Res Technol 2015; 22:131-6. [PMID: 26094501 DOI: 10.1111/srt.12239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND/PURPOSE The clinical skin tightening benefits of high intensity focused ultrasound (HIFU) have been established, but its mechanism of action in pigmented skin disorders remains unknown. We macroscopically and histopathologically investigated dermatological changes after HIFU at different exposure doses in a UVB-induced guinea pig model of hyperpigmentation. METHODS We applied HIFU irradiation at 0.1 and 0.2 J/cm(2) to UVB-induced spotty hyperpigmentation in guinea pig skin. The therapeutic effects of HIFU were judged based on gross appearance using photography, dermoscopy, and chromametry during a period of 3 weeks after HIFU irradiation. Histological assessments were performed using Fontana-Masson staining 1 day before and 3 weeks after HIFU irradiation. RESULTS Macroscopically, UVB-induced hyperpigmentation was significantly reduced 2 weeks after HIFU with 0.2 J/cm(2) , and 3 weeks after HIFU with 0.1 J/cm(2) . Histopathologically, the heavy deposition of melanin in the epidermis induced by UVB exposure was reduced 3 weeks after HIFU irradiation. CONCLUSION We confirmed that HIFU has a positive effect on UVB-induced hyperpigmentation as well as mechanical destructive activity. We suggest that HIFU may be useful as an alternative modality for human patients suffering from skin pigmentary conditions.
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Affiliation(s)
- S Y Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Catholic Kwandong University International ST.Mary's Hospital, Incheon, South Korea
| | - C T Oh
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Medicine, Graduate school, Chung-Ang University, Seoul, South Korea
| | - T R Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Medicine, Graduate school, Chung-Ang University, Seoul, South Korea
| | - E J Choi
- Department of Medicine, Graduate school, Chung-Ang University, Seoul, South Korea
| | - J Seok
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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Kwon TR, Yoo KH, Oh CT, Shin DH, Choi EJ, Jung SJ, Hong H, Choi YS, Kim BJ. Improved methods for selective cryolipolysis results in subcutaneous fat layer reduction in a porcine model. Skin Res Technol 2014; 21:192-200. [PMID: 25220194 DOI: 10.1111/srt.12176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND/AIMS Cryolipolysis is a noninvasive method for the selective reduction of localized fat tissues. It has demonstrated efficacy in both clinical and preclinical trials; however, despite its popularity, its mechanisms of action and evaluation methods are not yet fully defined. The purpose of this study was to improved methods for cryolipolysis using a porcine model. METHODS The abdomens of female PWG micro-pigs were treated with a cooling device (CRYOLIPO II(™)), and we examined the treatment effects using photography, three-dimensional photography, ultrasound, gross, and microscopic pathology, and serum lipid level analyses in order to determine the mechanism of action, efficacy, and safety of CRYOLIPO II(™). RESULTS CRYOLIPO II(™) successfully reduced abdominal fat in our porcine model. Gross and microscopic histological results confirmed the noninvasive cold-induced selective subcutaneous fat destruction, and showed increases in pre-adipocyte differentiation and in the activation of lipid catabolism. In particular, we found that CRYOLIPO II(™) may increase PPARδ (delta) levels in adipose tissue at 30-60 days post-treatment. CONCLUSION Fat reduction by cryolipolysis was successfully achieved in our porcine model. Thus, our findings indicate that CRYOLIPO II(™) may be a promising fat reduction device for body contouring and fat reduction in humans, and that cryolipolysis exerts its effects, at least partly, by targeting the PPARδ signaling pathway. These results show that both investigative and diagnostic potentials capacity.
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Affiliation(s)
- T-R Kwon
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea; Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Park HJ, Park M, Han M, Nam BH, Koh KN, Im HJ, Lee JW, Chung NG, Cho B, Kim HK, Yoo KH, Koo HH, Kang HJ, Shin HY, Ahn HS, Lim YT, Kook H, Lyu CJ, Hah JO, Park JE, Lim YJ, Seo JJ. Efficacy and safety of micafungin for the prophylaxis of invasive fungal infection during neutropenia in children and adolescents undergoing allogeneic hematopoietic SCT. Bone Marrow Transplant 2014; 49:1212-6. [PMID: 25000455 DOI: 10.1038/bmt.2014.136] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 05/12/2014] [Accepted: 05/18/2014] [Indexed: 11/09/2022]
Abstract
The objective of this study was to evaluate the efficacy and safety of micafungin for the prevention of invasive fungal infection (IFI) during the neutropenic phase of allogeneic hematopoietic SCT (allo-HSCT) in children and adolescents. This was a prospective, multicenter, open-label, single-arm study. Micafungin was administered i.v. at a dose of 1 mg/kg/day (max 50 mg) from the beginning of conditioning until neutrophil engraftment. Treatment success was defined as the absence of proven, probable, possible or suspected IFI through to 4 weeks after therapy. From April 2010 to December 2011, 155 patients were enrolled from 11 institutions in Korea, and 147 patients were analyzed. Of the 147 patients, 121 (82.3%) completed the protocol without premature interruption. Of the 132 patients in whom micafungin efficacy could be evaluated, treatment success was achieved in 119 patients (90.2%). There was no proven fungal infection in any patient. The number of patients with probable, possible and suspected IFI was two, two and nine, respectively. Thirty-five patients (23.8%) experienced 109 adverse events (AEs) possibly related to micafungin. No patients experienced grade IV AEs. Two patients (1.4%) discontinued micafungin administration due to adverse effects. None of the deaths were related to the study drug.
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Affiliation(s)
- H J Park
- Center for Pediatric Oncology, National Cancer Center, Goyang-si, Republic of Korea
| | - M Park
- Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - M Han
- Clinical Research Center, National Cancer Center, Goyang-si, Republic of Korea
| | - B H Nam
- Clinical Research Center, National Cancer Center, Goyang-si, Republic of Korea
| | - K N Koh
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H J Im
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J W Lee
- Department of Pediatrics, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - N-G Chung
- Department of Pediatrics, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - B Cho
- Department of Pediatrics, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - H-K Kim
- Department of Pediatrics, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - K H Yoo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H H Koo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H J Kang
- Department of Pediatrics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H Y Shin
- Department of Pediatrics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H S Ahn
- Department of Pediatrics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y T Lim
- Department of Pediatrics, Pusan National University College of Medicine, Busan, Republic of Korea
| | - H Kook
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - C J Lyu
- Department of Pediatrics, Yonsei University, College of Medicine, Seoul, Republic of Korea
| | - J O Hah
- Department of Pediatrics, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - J E Park
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Y J Lim
- Department of Pediatrics, Chungnam National University School of Medicine, Daejon, Republic of Korea
| | - J J Seo
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Park BS, Abdel-Azeem AZ, Al-Sanea MM, Yoo KH, Tae JS, Lee SH. Staurosporine analogues from microbial and synthetic sources and their biological activities. Curr Med Chem 2014; 20:3872-902. [PMID: 23848535 DOI: 10.2174/09298673113209990176] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 06/03/2013] [Accepted: 07/05/2013] [Indexed: 11/22/2022]
Abstract
In 1977 an unknown natural product was isolated from Streptomyces staurosporeus by Omura et al. during a search for new alkaloids present in actinomycetes and was given the name AM-2282. Later, the structure of AM-2282 was elucidated by single crystal X-ray analysis and renamed as staurosporine. It has been published that staurosporine and its analogues display strong inhibitory effect against a variety of kinases and a number of biological properties such as antifungal, antibacterial, and immunosuppressive activities. Despite strong inhibitory activity of staurosporine, a very high level of cross-reactivity makes it impossible to use staurosporine as a therapeutic agent. In the course of searching for other staurosporine-related compounds, a number of staurosporine analogues have been isolated from different microorganisms. In addition, a number of staurosporine analogues have been synthesized to improve the poor selectivity and target specificity of staurosporine which limited its clinical effectiveness. The review addresses staurosporine analogues from both microbial and synthetic sources and their biological activities.
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Affiliation(s)
- B S Park
- Chemical Kinomics Research Center, Korea Institute of Science and Technology, Seoul 130-650, Republic of Korea..
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Eom JE, Kim DS, Lee MW, Yu DK, Jin KS, Shin S, Lee SH, Sung KW, Koo HH, Yoo KH. Quality of functional haematopoietic stem/progenitor cells from cryopreserved human umbilical cord blood. Vox Sang 2014; 107:181-7. [PMID: 24517183 DOI: 10.1111/vox.12132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/02/2014] [Accepted: 01/03/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Transplantation of cryopreserved umbilical cord blood (UCB) can be used to treat a multitude of haematologic and immunological diseases. In this study, we examined the quality of UCB cryopreserved for 2 (group I), 4 (group II) and 6 (group III) years. METHODS The following parameters and procedures were used to test individual units of cryopreserved UCB: the number of total nucleated cells (TNC), cell viability, CFU-GM assay, T-cell activation in vitro and haematopoietic stem cell engraftment in NOD/SCID mice in vivo. RESULTS The TNC recovery rates for groups I, II and III were 106·2 ± 6·17%, 96·69 ± 6·39% and 100·38 ± 5·27%, respectively, and the mean percentages of viable cells after thawing were 86·88%, 86·38% and 87·43%. When TNC were plated at 5 × 10(3), the number of CFU-GM was 13·6 (group I), 13·8 (group II), 14·2 (group III) and 14·7 (fresh UCB). We confirmed that the huCD4(+) and huCD8(+) T cells within cryopreserved UCB are functionally responsive by assessment of activated huCD25(+) cells. Moreover, the percentage of huCD45(+) cells in the bone marrow was 4·32 ± 1·29% (group I), 4·48 ± 1·11% (group II), 4·40% ± 1·12% (group III) and 4·50% ± 0·66% (fresh UCB), and that in the peripheral blood was 14·69 ± 3·08% (group I), 15·24 ± 4·05% (group II), 15·74 ± 3·43% (group III) and 17·48 ± 3·74% (fresh UCB) in NOD/SCID mice infused with isolated huCD34(+) cells. CONCLUSION These results indicated that cryopreserved UCB units efficiently retrieve in functionally competent form and are suitable for transplantation.
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Affiliation(s)
- J-E Eom
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kim J, Kim K, Kim Y, Yoo KH, Lee CK, Yoon HK, Kim YS, Park YB, Lee JH, Oh YM, Lee SD, Lee SW. The association between inhaled long-acting bronchodilators and less in-hospital care in newly-diagnosed COPD patients. Respir Med 2014; 108:153-61. [DOI: 10.1016/j.rmed.2013.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 06/26/2013] [Accepted: 08/06/2013] [Indexed: 11/27/2022]
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Jeong HS, Kim SH, Lee KS, Jeong JM, Yoo TW, Kwon MS, Yoo KH, Kim TW. Optical properties of white organic light-emitting devices fabricated utilizing a mixed CaAl12O19:Mn4+ and Y3Al5O12:Ce3+ color conversion layer. J Nanosci Nanotechnol 2013; 13:4394-4397. [PMID: 23862509 DOI: 10.1166/jnn.2013.7003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
White organic light-emitting devices (OLEDs) were fabricated by combining a blue OLED with a color conversion layer made of mixed Y3Al5O12:Ce3+ green and Ca2AlO19:Mn4+ red phosphors. The X-ray diffraction patterns showed that Ce3+ ions in the Y3Al5O12:Ce3+ phosphors completely substituted for the Y3+ ions and the Mn4+ ions in the CaAl12O19:Mn4+ phosphors completely substituted for the Ca2+ ions. Electroluminescence spectra at 11 V for the OLEDs fabricated utilizing a color conversion layer showed that the Commission Internationale de l'Eclairage coordinates for the Y3Al5O12:Ce3+ and CaAl12O19:Mn4+ phosphors mixed at the ratio of 1:5 and 1:10 were (0.31, 0.34) and (0.32, 0.37), respectively, indicative of a good white color.
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Affiliation(s)
- H S Jeong
- Department Electronics and Computer Engineering, Hanyang University, Seoul 133-791, Korea
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Kwon WJ, Kim SH, Lee KS, Choo DC, Kim SW, Kim SW, Yoo TW, Kwon MS, Yoo KH, Kim TW. Color stability of white organic light emitting devices with a color conversion layer utilizing CdSe/ZnS quantum dots and phosphors dispersed in polymethylmethacrylate. J Nanosci Nanotechnol 2013; 13:4390-4393. [PMID: 23862508 DOI: 10.1166/jnn.2013.7002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
White organic light-emitting devices (WOLEDs) were fabricated by combining a blue emitting organic light-emitting devices (OLEDs) and a color conversion layer made of yttrium aluminum garnet phosphors and CdSe/ZnS quantum dots (QDs) embedded into polymethylmethacrylate. When the ratio of phosphors and QDs changed, a good color balance was achieved at a ratio of 1:5, and the maximum luminance of 18.21 cd/m2 was obtained. As the applied voltage varied from 12 to 16 V, Commission Internationale de l'Eclairage coordinates shifted only slightly from (0.32, 0.34) to (0.30, 0.33), indicating a good color stability.
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Affiliation(s)
- W J Kwon
- Department of Information Display Engineering, Hanyang University, Seoul 133-791, Korea
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Rhee CK, Yoo KH, Lee JH, Park MJ, Kim WJ, Park YB, Hwang YI, Kim YS, Jung JY, Moon JY, Rhee YK, Park HK, Lim JH, Park HY, Lee SW, Kim YH, Lee SH, Yoon HK, Kim JW, Kim JS, Kim YK, Oh YM, Lee SD, Kim HJ. Clinical characteristics of patients with tuberculosis-destroyed lung. Int J Tuberc Lung Dis 2013; 17:67-75. [PMID: 23232006 DOI: 10.5588/ijtld.12.0351] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Multicentre study. OBJECTIVE To define the clinical characteristics of patients with tuberculosis (TB) destroyed lung due to past TB. DESIGN We reviewed patients with TB-destroyed lung between May 2005 and June 2011. RESULTS A total of 595 patients from 21 hospitals were enrolled. The mean age was 65.63 ± 0.47 (mean ± standard error); 60.5% were male. The mean number of lobes involved was 2.59 ± 0.05. Pleural thickening was observed in 54.1% of the patients. Mean forced vital capacity (FVC), forced expiratory volume in 1 s (FEV(1)), FEV(1)/FVC, bronchodilator response and number of exacerbations per year were respectively 2.06 ± 0.03 l (61.26% ± 0.79), 1.16 ± 0.02 l (49.05% ± 0.84), 58.03% ± 0.70, 5.70% ± 0.34, and 0.40 ± 0.04. The number of lobes involved was significantly correlated with FVC and FEV(1), and with the number of exacerbations per year. Use of long-acting muscarinic antagonists or long-acting beta-2 agonists plus inhaled corticosteroids resulted in bronchodilatory effects. Multivariable regression analysis showed that age, initial FEV(1) (%) and number of exacerbations during follow-up were independent factors affecting change in FEV(1). CONCLUSION Decreased lung function with exacerbation, and progressive decline of FEV(1) were observed in patients with TB-destroyed lung.
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Affiliation(s)
- C K Rhee
- Department of Internal Medicine, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Korea
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Kim WD, Chi HS, Choe KH, Oh YM, Lee SD, Kim KR, Yoo KH, Ngan DA, Elliott WM, Granville DJ, Sin DD, Hogg JC. A possible role for CD8+and non-CD8+cell granzyme B in early small airway wall remodelling in centrilobular emphysema. Respirology 2013; 18:688-96. [DOI: 10.1111/resp.12069] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 10/21/2012] [Accepted: 12/13/2012] [Indexed: 01/18/2023]
Affiliation(s)
- Won-Dong Kim
- Division of Pulmonary Medicine; Konkuk University Medical Center; Seoul; Republic of Korea
| | - Hyun-Sook Chi
- Department of Laboratory Medicine; Asan Medical Center, University of Ulsan College of Medicine; Seoul; Republic of Korea
| | - Kang-Hyeon Choe
- Department of Internal Medicine; Chungbuk National University College of Medicine; Cheongju; Republic of Korea
| | - Yeon-Mok Oh
- Department of Internal Medicine; Asan Medical Center, University of Ulsan College of Medicine; Seoul; Republic of Korea
| | - Sang-Do Lee
- Department of Internal Medicine; Asan Medical Center, University of Ulsan College of Medicine; Seoul; Republic of Korea
| | - Kyu-Rae Kim
- Department of Pathology; Asan Medical Center, University of Ulsan College of Medicine; Seoul; Republic of Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary Medicine; Konkuk University Medical Center; Seoul; Republic of Korea
| | - David A. Ngan
- The James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research; St. Paul's Hospital; University of British Columbia; Vancouver; British Columbia; Canada
| | - W. Mark Elliott
- The James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research; St. Paul's Hospital; University of British Columbia; Vancouver; British Columbia; Canada
| | - David J. Granville
- The James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research; St. Paul's Hospital; University of British Columbia; Vancouver; British Columbia; Canada
| | - Don D. Sin
- The James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research; St. Paul's Hospital; University of British Columbia; Vancouver; British Columbia; Canada
| | - James C. Hogg
- The James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research; St. Paul's Hospital; University of British Columbia; Vancouver; British Columbia; Canada
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Lee SH, Lee MW, Yoo KH, Kim DS, Son MH, Sung KW, Cheuh H, Choi SJ, Oh W, Yang YS, Koo HH. Co-transplantation of third-party umbilical cord blood-derived MSCs promotes engraftment in children undergoing unrelated umbilical cord blood transplantation. Bone Marrow Transplant 2013; 48:1040-5. [DOI: 10.1038/bmt.2013.7] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 01/05/2013] [Accepted: 01/10/2013] [Indexed: 12/11/2022]
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Kim DH, You JH, Kim JH, Yoo KH, Kim TW. Electronic structures and carrier distributions of T-shaped AlxGa1-xAs/AlyGa1-yAs quantum wires fabricated by a cleaved-edge overgrowth method. J Nanosci Nanotechnol 2012; 12:5687-5690. [PMID: 22966634 DOI: 10.1166/jnn.2012.6391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The electronic structures and carrier distributions of T-shaped AlxGa1_xAs/AlyGa1-yAs quantum wire (QWR) consisting of crossed arm and stem wells were numerically calculated by using a finite-difference method (FDM). The electronic subband energies in the arm and the stem wells were numerically calculated by using the FDM taking into account two-band Hamiltonian systems considering with and without strain and nonparabolicity effects. The band deformation due to strain and the probabilistic electron confinement of T-shaped AlxGa1-xAs/AlyGa1-yAs QWRs were also calculated. The transition energy from the ground heavy-hole state (HH1) to the ground electron state (E1) was 1.584 eV when the strain was not considered and 1.585 eV when the strain effects were included. The excitonic peak energies corresponding to the interband transitions (E1-HH1) in the T-shaped QWRs determined from the photoluminescence spectra were compared favorably with those determined from the FDM calculations.
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Affiliation(s)
- D H Kim
- Department of Electronics and Computer Engineering, Hanyang University, Seoul 133-791, Korea
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You JH, Kim DH, Lee DU, Yoo KH, Park CY, Park KW, Jang SJ, Lee YT, Kim TW. Effect of temperature on optical and electronic properties of InGaP/InGaAIP multiple quantum wells. J Nanosci Nanotechnol 2012; 12:5843-5846. [PMID: 22966667 DOI: 10.1166/jnn.2012.6246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The optical and electronic properties in an InGaP/InGaAIP multiple quantum well (MQW) grown by using molecular-beam epitaxy utilizing the digital alloy technique were investigated through temperature-dependent photoluminescence (PL) measurements and numerical calculations. The high-resolution transmission electron microscopy images showed that the sample clearly displayed the InGaP wells and the InGaAIP barriers and separate confinement heterostructure layers. The PL measurements at various temperatures were performed to investigate the interband transitions of the InGaP/InGaAIP MQW. The electronic subband energies and the wavefunctions in the InGaP/InGaAIP MQW at several temperatures were determined by using a finite element method employing the standard 8-band k x p Lagrangian. The numerical results for optical interband transition energies from the ground state electron subband to the ground state heavy-hole subband of the InGaP/InGaAIP MQW at various temperatures were in reasonable agreement with the excitonic transition energies observed in the PL measurements.
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Affiliation(s)
- J H You
- Department of Electronics and Computer Engineering, Hanyang University, Seoul 133-791, Korea
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Sung KW, Son MH, Lee SH, Yoo KH, Koo HH, Kim JY, Cho EJ, Lee SK, Choi YS, Lim DH, Kim JS, Kim DW. Tandem high-dose chemotherapy and autologous stem cell transplantation in patients with high-risk neuroblastoma: Results of SMC NB-2004 study. Bone Marrow Transplant 2012; 48:68-73. [DOI: 10.1038/bmt.2012.86] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yim YS, Noh YH, Kim DH, Lee MW, Cheuh HW, Lee SH, Yoo KH, Jung HL, Sung KW, Choi SJ, Oh WI, Yang YS, Koo HH. Correlation between the immature characteristics of umbilical cord blood-derived mesenchymal stem cells and engraftment of hematopoietic stem cells in NOD/SCID mice. Transplant Proc 2011; 42:2753-8. [PMID: 20832581 DOI: 10.1016/j.transproceed.2010.05.146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 02/09/2010] [Accepted: 05/12/2010] [Indexed: 12/26/2022]
Abstract
Umbilical cord blood (UCB)-derived mesenchymal stem cells (MSC) facilitate the engraftment of human (h) hematopoietic stem cells when transplanted simultaneously in animal and human studies. However, the type of MSCs that preferentially enhance the engraftment of HSCs is unknown. Recent studies have shown that MSCs derived from a single source are heterogeneous in terms of cell size, morphology, proliferation rate, and differentiation potential. This study was designed to investigate the properties of UCB-MSCs, which influence the engraftment of hHSCs in a NOD/SCID mouse model. We categorized MSCs as being the most effective (UCB-352 MSCs) or the least effective (UCB-156 MSCs) at promoting the homing and engraftment of HSCs, and compared the characteristics of these 2 MSC populations. We observed that the 2 populations showed differences in characteristics typical of immature MSCs, and related to proliferation potential. We showed that UCB-352 MSCs, which proliferate quickly, preferentially enhanced the engraftment of HSCs in NOD/SCID mice. In addition, we observed differences in the pattern of both PODXL and Oct4 expression, and in the levels of cytokines such as SDF-1 and SCF using flow cytometry and membrane arrays. The more effective UCB-352 MSCs expressed higher levels of PODXL and Oct4, which were associated with immaturity, than did the UCB-156 MSCs. Furthermore, UCB-352 cells secreted greater levels of SDF-1 and SCF, both of which are required for hematopoiesis. We propose that the proliferation potential of UCB-MSCs, coupled with their immature characteristics, may serve as a novel standard to promote the homing and engraftment of HSCs.
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Affiliation(s)
- Y S Yim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Lee SH, Cheuh H, Yoo KH, Kim YJ, Sung KW, Koo HH, Kim DH, Kim SJ, Kim K, Jang JH, Jung CW. Hematopoietic stem cell transplantation from a related donor infected with influenza H1N1 2009. Transpl Infect Dis 2011; 13:548-50. [PMID: 21348910 DOI: 10.1111/j.1399-3062.2011.00616.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yoo KH, Seo SJ, Park J, Han TY, Li K, Song KY, Hong CK. Extramammary Paget's disease of the penis with features of Bowen's disease. Clin Exp Dermatol 2010; 34:e999-1000. [PMID: 20055883 DOI: 10.1111/j.1365-2230.2009.03659.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yoo KH, Jeong JW, Yoon HJ, Chang SI, Moon HB, Choi BH, Kim YY, Cho SH. Customized Asthma Control Test with reflection on sociocultural differences. J Korean Med Sci 2010; 25:1134-9. [PMID: 20676322 PMCID: PMC2908780 DOI: 10.3346/jkms.2010.25.8.1134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Accepted: 02/04/2010] [Indexed: 11/20/2022] Open
Abstract
We evaluated the utility and feasibility of customizing Asthma Control Test (ACT) items to generate a Korean Asthma Control Test (KACT) specific for Korean patients. We surveyed 392 asthma patients with 19 items, selected to reflect the Korean sociocultural context. Guideline ratings were integrated with the evaluations of specialists (i.e., using both guide base rating together with specialist's rating), and items with the greatest discriminating validity were identified. Stepwise regression methods were used to select items. KACT scale scores showed significant differences between the asthma control ratings generated by integrating ratings (r=0.77, P<0.001), by specialist's evaluations (r=0.54, P<0.001), or by FEV(1) percent predicted (r=0.39, P<0.001). Specialist's and guideline ratings detected 56% and 48.6% of patients with well-controlled asthma, respectively. However, the integrated ratings indicated that only 34.3% of the patients in the test sample were well controlled. The overall agreement between KACT and the integrated rating ranged from 45% to 78%, depending on the cut-off points used. It is possible to formulate a valid, useful country-specific diagnostic tool for the assessment of asthma patients based on the original ACT that reflect differences in sociocultural context.
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Affiliation(s)
- Kwang-Ha Yoo
- Department of Internal Medicine, Konkuk University College of Medicine, Seoul, Korea
- Asthma Allergy Foundation, Seoul, Korea
| | - Jae-Won Jeong
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Inje University College of Medicine, Ilsan, Korea
| | - Ho-Joo Yoon
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Suk-Il Chang
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Sung-Ae General Hospital, Bucheon, Korea
| | - Hee-Bom Moon
- Asthma Allergy Foundation, Seoul, Korea
- Department of Medicine and CPI (Clinical Performance Improvement), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Byoung-Hwui Choi
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - You-Young Kim
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Institute of Allergy & Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - Sang-Heon Cho
- Asthma Allergy Foundation, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Institute of Allergy & Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
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