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Ko TY, Cheng JHM, Luk YS, Khoo JLS. Normative Measurements of Orbital Structures in the Hong Kong Population. Hong Kong Journal of Radiology 2021. [DOI: 10.12809/hkjr2117133] [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: 11/05/2022] Open
Affiliation(s)
- TY Ko
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Hong Kong
| | - JHM Cheng
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Hong Kong
| | - YS Luk
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Hong Kong
| | - JLS Khoo
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Hong Kong
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Jin S, Kim J, Lee JY, Ko TY, Oh GM. End-of-Life Care Practice in Dying Patients after Enforcement of Act on Decisions on Life-Sustaining Treatment For Patients in Hospice and Palliative Care or at the End of Life : A Single Center Experience. Hanguk Hosupisu Wanhwa Uiryo Hakhoe Chi 2020; 23:93-102. [PMID: 37497083 PMCID: PMC10332712 DOI: 10.14475/kjhpc.2020.23.2.93] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 07/28/2023]
Abstract
Purpose The Act on Hospice and Palliative Care and Decisions on Life-Sustaining Treatment for Patients at the End of Life came into force in February 2018 in Korea. This study reviews the practices of end-of-life care for patients who withdrew or withheld lifesustaining treatment at a tertiary care hospital, addresses the limitations of the law, and discusses necessary steps to promote patient-centered self-determination. Methods We retrospectively analyzed the medical records of patients who died after agreeing to withhold lifesustaining treatment in 2018 at our university hospital. The cause of death, the intensity of end-of-life care, and other characteristics were reviewed and statistically analyzed. Results Of a total of 334 patients, 231 (69%) died from cancer. The decision to stop life-sustaining treatment was made by family members for 178 patients overall (53.3%) and for 101 (43.7%) cancer patients, regardless of the patient's wishes. When the patient decided to stop lifesustaining treatment, the time from the authorization to withhold life-sustaining treatment to death was longer than when the decision was made by family members (28.7±41.3 vs 10.5±23.2 days, P<0.001). Conclusion In many cases, the decision to discontinue lifesustaining treatment was made by the family, not by the patient. In order to protect human dignity based on the patients' self-determination, it is necessary for patients to understand their disease based on careful explanations from physicians. Ongoing survey-based research will be necessary in the future.
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Affiliation(s)
- Sol Jin
- Departments of Internal medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Jehun Kim
- Departments of Pulmonology, Kosin University Gospel Hospital, Busan, Korea
| | - Jin Young Lee
- Departments of Infectious disease, Kosin University Gospel Hospital, Busan, Korea
| | - Taek Yong Ko
- Departments of Internal medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Gyu Man Oh
- Departments of Internal medicine, Kosin University Gospel Hospital, Busan, Korea
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Ko TY, Kim JI, Lee SH. Relationship between Cancer Stem Cell Marker CD133 and Cancer Germline Antigen Genes in NCI-H292 Lung Cancer Cells. Korean J Thorac Cardiovasc Surg 2020; 53:22-27. [PMID: 32090054 PMCID: PMC7006610 DOI: 10.5090/kjtcs.2020.53.1.22] [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] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 11/22/2022]
Abstract
Background Previous studies have shown that lung cancer stem cells express CD133 and that certain cancer stem cells express cancer germline antigens (CGAs). The transcriptional regulation of CD133 is complicated and poorly understood. We investigated CD133 and CGA expression in a non-small cell lung cancer cell line. Methods The expression levels of CD133 and CGAs (MAGE-6, GAGE, SSX, and TRAG-3) were measured in an NCI-H292 lung cancer cell line. The methylation status of the CD133 gene promoter region was analyzed. The expression levels and promoter methylation statuses of CD133 and CGAs were confirmed by treatment with the demethylating agent 5-aza-2′-deoxycytidine (ADC). Results After treatment with ADC, CD133 expression was no longer detected. MAGE-6 and TRAG-3 were detected before ADC treatment, while GAGE and SSX were not detected. ADC treatment upregulated MAGE-6 and TRAG-3 expression, while GAGE expression was still undetected after treatment, and only weak SSX expression was observed. GAGE expression was not correlated with expression of CD133, while the levels of expression of MAGE-6, TRAG-3, and SSX were inversely correlated with CD133 expression. Conclusion These results showed that CD133 expression can be regulated by methylation. Thus, the demethylation of the CD133 promoter may compromise the treatment of lung cancer by inactivating cancer stem cells and/or activating CGAs.
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Affiliation(s)
- Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Sang Ho Lee
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
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Lee SH, Ko TY, Cho SH. Unusual Communication between the Pulmonary Artery and Vieussens' Arterial Ring Causing Infective Endocarditis. Korean J Thorac Cardiovasc Surg 2019; 52:425-427. [PMID: 31832380 PMCID: PMC6901185 DOI: 10.5090/kjtcs.2019.52.6.425] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 08/20/2019] [Accepted: 08/27/2019] [Indexed: 11/16/2022]
Abstract
Coronary artery fistula is an abnormal communication between the coronary artery and the cardiac chambers. In particular, an abnormal connection between the conus branch of the right coronary artery and the proximal left anterior descending coronary artery is defined as Vieussens' arterial ring. Coronary artery fistulas are usually asymptomatic, but some can cause complications such as infective endocarditis. Here, we report a case of Vieussens' arterial ring causing infective endocarditis with severe mitral regurgitation.
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Affiliation(s)
- Sang Ho Lee
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Seong Ho Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
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Mun JM, Kim JI, Ko TY, Park SD. Surgical Treatment of Primary Pulmonary Myopericytoma. Korean J Thorac Cardiovasc Surg 2018; 51:220-222. [PMID: 29854670 PMCID: PMC5973222 DOI: 10.5090/kjtcs.2018.51.3.220] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/09/2017] [Accepted: 11/13/2017] [Indexed: 11/21/2022]
Abstract
Myopericytoma is a benign tumor that occurs in soft tissues. Myopericytoma in the lungs is very rare. We report the case of a 63-year-old woman presenting with cavitary masses in the left lung and multiple tiny nodules in both lungs. She underwent surgery, and a histological examination revealed primary pulmonary myopericytoma.
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Affiliation(s)
- Jeong Min Mun
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sung Dal Park
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
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Ko TY, Kim JI, Park ES, Mun JM, Park SD. The Clinical Implications of Death Domain-Associated Protein (DAXX) Expression. Korean J Thorac Cardiovasc Surg 2018; 51:187-194. [PMID: 29854663 PMCID: PMC5973215 DOI: 10.5090/kjtcs.2018.51.3.187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/01/2017] [Accepted: 11/01/2017] [Indexed: 01/10/2023]
Abstract
Background Death domain-associated protein (DAXX), originally identified as a pro-apoptotic protein, is now understood to be either a pro-apoptotic or an anti-apoptotic factor with a chromatin remodeler, depending on the cell type and context. This study evaluated DAXX expression and its clinical implications in squamous cell carcinoma of the esophagus. Methods Paraffin-embedded tissues from 60 cases of esophageal squamous carcinoma were analyzed immunohistochemically. An immune reaction with more than 10% of tumor cells was interpreted as positive. Positive reactions were sorted into 2 groups: reactions in 11%–50% of tumor cells and reactions in more than 51% of tumor cells, and the correlations between expression and survival and clinical prognosticators were analyzed. Results Forty-three of the 60 cases (71.7%) showed strong nuclear DAXX expression, among which 19 cases showed a positive reaction (31.7%) in 11%–50% of tumor cells, and 24 cases (40.0%) showed a positive reaction in more than 51% of tumor cells. A negative reaction was found in 17 cases (28.3%). These patterns of immunostaining were significantly associated with the N stage (p=0.005) and American Joint Committee on Cancer stage (p=0.001), but overall survival showed no significant difference. There were no correlations of DAXX expression with age, gender, or T stage. However, in stage IIB (p=0.046) and stage IV (p=0.014) disease, DAXX expression was significantly correlated with survival. Conclusion This investigation found upregulation of DAXX in esophageal cancer, with a 71.7% expression rate. DAXX immunostaining could be used in clinical practice to predict aggressive tumors with lymph node metastasis in advanced-stage disease, especially in stages IIB and IV.
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Affiliation(s)
- Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Eok Sung Park
- Department of Thoracic and Cardiovascular Surgery, Haeundae Bumin Hospital
| | - Jeong Min Mun
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sung Dal Park
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
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Lee HY, Kim JI, Cho SH, Ko TY, Kim HS, Park SD, Cho SR, Chang HK, Hwang GJ, Jung SB. Expression of the brother of the regulator of imprinted sites gene in the sputum of patients with lung cancer. Korean J Thorac Cardiovasc Surg 2014; 47:378-83. [PMID: 25207247 PMCID: PMC4157501 DOI: 10.5090/kjtcs.2014.47.4.378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/22/2013] [Accepted: 11/24/2013] [Indexed: 11/20/2022]
Abstract
Background Brother of the regulator of imprinted sites (BORIS) is a putative new oncogene that is classified as a cancer germline gene; however, its role in the development of cancer is unclear. This study investigated the expression of BORIS in lung cancer and its clinical implications. Methods The expression of BORIS messenger ribonucleic acid (mRNA) in the sputum of 100 patients with lung cancer (50 with squamous cell carcinoma, 36 with adenocarcinoma, and 14 with small-cell carcinoma) was evaluated by reverse transcription polymerase chain reaction. Results The overall expression rate of BORIS in patients with lung cancer was 36.0%: 19 of 50 squamous cell carcinomas (38.0%), 13 of 36 adenocarcinomas (36.1%), and 4 of 14 (28.6%) small-cell carcinomas. There was no significant difference in the BORIS expression according to age, gender, or histologic type. However, the mRNA expression of BORIS was significantly related to the pathologic cancer stage (p=0.004) and lymph node metastasis (p=0.001). The expression of the melanoma antigen gene family A1–6 was not associated with the expression of BORIS. Conclusion Our results suggest that the expression of BORIS might be a negative prognostic factor in lung cancers and implicate BORIS as a molecular target for immunotherapy.
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Affiliation(s)
- Hae Young Lee
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sung Ho Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Hyun Su Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sung Dal Park
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sung Rae Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Hee Kyung Chang
- Department of Pathology, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Guk Jin Hwang
- Department of Familly Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine
| | - Sang Bong Jung
- Department of Clinical Laboratory Science, Gimhae College
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Lee HY, Cho SH, Ko TY, Kim HS, Kim JI, Park SD, Cho SR, Chun BK. Saccular aneurysm of the external jugular vein: a case report. Korean J Thorac Cardiovasc Surg 2014; 47:171-3. [PMID: 24782973 PMCID: PMC4000880 DOI: 10.5090/kjtcs.2014.47.2.171] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/19/2013] [Accepted: 11/21/2013] [Indexed: 11/24/2022]
Abstract
Saccular aneurysm of the external jugular vein presenting as a neck mass is very rare. We report the surgical treatment of an external jugular venous aneurysm in a 48-year-old female patient due to the cosmetic problem of neck engorgement, concomitant with thyroidectomy for cancer.
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Affiliation(s)
- Hae Young Lee
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Sung Ho Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Hyun Su Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Sung Dal Park
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Sung Rae Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Bong Kwon Chun
- Department of Pathology, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
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Cho SH, Park SD, Ko TY, Lee HY, Kim JI. Primary epithelial myoepithelial lung carcinoma. Korean J Thorac Cardiovasc Surg 2014; 47:59-62. [PMID: 24570870 PMCID: PMC3928267 DOI: 10.5090/kjtcs.2014.47.1.59] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/21/2013] [Accepted: 09/23/2013] [Indexed: 11/16/2022]
Abstract
Primary epithelial-myoepithelial carcinoma (EMC) of the lung is an extremely rare neoplasm that originates from submucosal bronchial glands and has been found in the salivary glands, breast tissue, and sweat glands. However, only a few cases in the respiratory tract have been identified. In the literature, most pulmonary EMCs have been reported to have developed endobronchially although a few EMC cases have been presented as intraparenchymatous tumors. We have identified a case of primary EMC that developed in the peripheral lung parenchyma.
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Affiliation(s)
- Seong Ho Cho
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Sung Dal Park
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Taek Yong Ko
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Hae Young Lee
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
| | - Jong In Kim
- Department of Thoracic and Cardiovascular Surgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Korea
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Abstract
A method, based on the liberation of a dye complex from Blue Dextran 2000, is described for the assay of dextranase. The reaction was conducted at 40 °C for 5 min at pH 4.0 in a mixture containing 0.5% Blue Dextran 2000 and the enzyme. The Km for the hydrolysis of Blue Dextran 2000 was estimated at 2.5 × 10−6 M.
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