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Choi SY, Kim MH, Lee KM, Kim JK, Woo JY, Cho YR. P5661Validation of CHA2DS2-VA score (excluding female sex) in non-valvular atrial fibrillation patients: a nationwide population-based study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0604] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Sex category (Sc, ie, female sex) confers 1 point on CHA2DS2-VASc score. So, no woman with atrial fibrillation (AF) can have a CHA2DS2-VASc score of 0. This study aimed to compare CHA2DS2-VA (excluding female sex) and CHA2DS2-VASc score in Korean AF patients.
Methods
Using the Korean National Health Insurance Service database, we analyzed the risk of ischemic stroke in non-valvular AF patients between 2013 and 2017. The predictive value of the CHA2DS2-VA and CHA2DS2-VASc scores for ischemic stroke was evaluated by c-statistic difference and net reclassification improvement (NRI). The propensity score matching method was used to balance covariates across male and female AF patients.
Results
A total of 182,133 patients with AF (49.2% women) were included to this study. The adjusted incidence rate (IR) of ischemic stroke was not significantly different between males and females (0.89%/y and 0.90%/y, respectively, p=0.411) in low-risk patients without risk factor. Also, no sex difference was found in high-risk patients with above 2 risk factors for ischemic stroke (4.46%/y for male and 4.49%/y for male, p=0.498). In c-statistic analysis for ischemic stroke, there was no significant difference between the CHA2DS2-VA and CHA2DS2-VASc scores (AUC 0.662 vs. 0.664, z=1.572, p=0.116). When compared with CHA2DS2-VASc score, CHA2DS2-VA score was not significantly inferior in net reclassification improvement (NRI 0.031, 95% CI 0.002–0.037, p=0.118) for ischemic stroke.
C-statistics
Conclusions
In Korean AF patients, the CHA2DS2-VA score excluding female sex is a useful risk scoring system for ischemic stroke.
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Affiliation(s)
- S Y Choi
- Daeu Health College, Department of Biomedical Laboratory Science, Daegu, Korea (Republic of)
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - K M Lee
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J K Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J Y Woo
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - Y R Cho
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
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Affiliation(s)
- J. Y. Woo
- Intermountain Forest and Range Experiment Station, Forestry Sciences Laboratory, Moscow, Idaho
| | - A. D. Partridge
- College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow, Idaho 83843
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Woo JY, Suhng EA, Choi YW, Choi HY, Byun JY. Cystic sebaceous tumour with no evidence of Muir-Torre syndrome. J Eur Acad Dermatol Venereol 2015; 30:1038-9. [PMID: 25753622 DOI: 10.1111/jdv.13093] [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: 12/01/2022]
Affiliation(s)
- J Y Woo
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - E A Suhng
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - Y W Choi
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - H Y Choi
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - J Y Byun
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
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Jang HJ, Kim BC, Kim HS, Kim JH, Song HH, Kim JB, Park JJ, Yoon SN, Woo JY, Zang DY. Comparison of RECIST 1.0 and RECIST 1.1 on computed tomography in patients with metastatic colorectal cancer. Oncology 2014; 86:117-21. [PMID: 24480800 DOI: 10.1159/000357714] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 11/25/2013] [Indexed: 12/22/2022]
Abstract
OBJECTIVE We conducted this study to compare tumor measurement by computed tomography (CT) and tumor response assessment between Response Evaluation Criteria In Solid Tumors (RECIST) 1.0 and RECIST 1.1 in patients with metastatic colorectal cancer (CRC). METHODS We reviewed the medical records of patients with metastatic CRC who received first-line chemotherapy between January 2004 and December 2012 and compared CT tumor measurement using two RECIST versions. RESULTS A total of 58 patients who had target lesions according to RECIST 1.0 were included in the study. The number of target lesions recorded by RECIST 1.1 was significantly lower than that by RECIST 1.0, with a decrease experienced in 48 patients (82.7%). Six patients had no target lesions because of the new criteria of RECIST 1.1 for lymph node size. Out of 95 lymph nodes from 58 patients, only 40% were defined as target lesions according to RECIST 1.1. The overall response rate of first-line chemotherapy according to RECIST 1.0 and 1.1 was 41.5 and 40.4%, respectively. The best tumor responses showed almost perfect agreement between RECIST 1.1 and RECIST 1.0 (ĸ = 0.913). Three patients showed disagreement of the best responses between the two RECIST versions. CONCLUSION RECIST 1.1 showed a highly concordant response assessment with RECIST 1.0 in metastatic CRC and its clinical impact on therapeutic decisions was minimal.
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Affiliation(s)
- H J Jang
- Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
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Oh YJ, Yang I, Yoon DY, Cho SJ, Lee Y, Woo JY, Jung AY, Hong HS, Jeh SK. Extraskeletal myxoid chondrosarcoma of the neck. Dentomaxillofac Radiol 2013; 42:31808012. [PMID: 23230139 DOI: 10.1259/dmfr/31808012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Extraskeletal myxoid chondrosarcoma is a rare malignant soft-tissue tumour that is typically in the deep soft tissues of the lower extremity. The tumour is usually a well-defined, multinodular soft-tissue mass without calcifications. A 62-year-old woman with a history of nasopharyngeal cancer presented with a palpable mass in the anterior neck. Radiologically, the lesion was a well-defined soft-tissue mass with the extensive calcifications on various imaging examinations. Although this lesion was histopathologically diagnosed as extraskeletal myxoid chondrosarcoma, the unusual imaging findings were challenging and very intriguing.
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Affiliation(s)
- Y J Oh
- Department of Radiology, Kangnam Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Republic of Korea
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Oh YJ, Yang I, Yoon DY, Cho SJ, Lee Y, Woo JY, Jung AY, Hong HS, Jeh SK. Extraskeletal myxoid chondrosarcoma of the neck. Dentomaxillofac Radiol 2012. [DOI: 10.1259/dmfr.20100355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Go HS, Hong HS, Kim JW, Woo JY. CT appearance of primary peritoneal serous borderline tumour: a rare epithelial tumour of the peritoneum. Br J Radiol 2011; 85:e22-5. [PMID: 22190758 DOI: 10.1259/bjr/26458228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Primary peritoneal serous borderline tumour (PPSBT) is a rare epithelial neoplasm which is histologically identical to serous borderline tumour of the ovary. PPSBT is distinguishable from primary peritoneal serous carcinoma because the tumour cells do not invade the underlying tissue and affected patients have a good prognosis. We report the CT findings of surgically proven PPSBT in which multiple peritoneal cysts were seen. Although rare, PPSBT should be considered in the differential diagnosis of primary peritoneal tumours. Since the prognosis of the disease is good, conservation of the uterus and ovaries should be a consideration in young female patients during surgery.
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Affiliation(s)
- H S Go
- Department of Radiology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital, Yeongdeungpo-gu, Seoul, Republic of Korea
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Ha HS, Woo JY, Kim WH, Kim HS, Kim BK. The rheological, thermal, and mechanical properties for polypropylene and amorphous poly alpha olefin blends. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.967] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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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Shim SS, Woo JY, Kim KH, Kim BK. Effects of surfactant and molecular weight of polyol on grating formation and switching of holographic PDLC. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.1165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ryoo JW, Na DG, Woo JY, Park K, Kim HD, Choi DS, Byun HS. Investigation of juxtasellar and cerebellopontine angle meningiomas and neurogenic tumours: two-phase helical CT. Neuroradiology 2001; 43:637-43. [PMID: 11548170 DOI: 10.1007/s002340100539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
We performed two-phase helical CT in 31 patients with juxtasellar region and cerebellopontine angle tumours to evaluate its usefulness in differentiating meningiomas from neurogenic tumours. After the intravenous injection of 90 ml contrast medium at 3 ml/s, axial helical images were obtained with delays of 30 and 120 s. After the delayed axial images, we acquired coronal images. Changes in attenuation were assessed visually and quantitatively (by comparing the attenuation in Hounsfield units). There were 17 meningiomas and 14 neurogenic tumours, all pathologically proven. Two-phase helical CT showed a decrease in attenuation in 15 (88%) meningiomas and an increase in 14 (100%) neurogenic tumours from early to delayed axial images. Coronal images showed a decrease in attenuation in all 17 meningiomas and an increase in 13 (93%) of the neurogenic tumours. The mean HU and their ratios were significantly different between meningiomas and neurogenic tumours.
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Affiliation(s)
- J W Ryoo
- Department of Radiology, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kim B, Lim HK, Choi MH, Woo JY, Ryu J, Kim S, Peck KR. Detection of parenchymal abnormalities in acute pyelonephritis by pulse inversion harmonic imaging with or without microbubble ultrasonographic contrast agent: correlation with computed tomography. J Ultrasound Med 2001; 20:5-14. [PMID: 11149528 DOI: 10.7863/jum.2001.20.1.5] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The purpose of this study was to evaluate the ability of pulse inversion harmonic imaging with or without microbubble ultrasonographic contrast agent in depicting renal parenchymal changes in acute pyelonephritis. The study population included 30 patients with acute pyelonephritis and 10 healthy volunteers. Pulse inversion harmonic imaging with or without contrast agent was compared with conventional ultrasonography and tissue harmonic imaging in terms of detection and conspicuity of renal abnormalities. The detection and conspicuity of renal parenchymal abnormalities in acute pyelonephritis on tissue harmonic imaging, pulse inversion harmonic imaging, and contrast-enhanced pulse inversion harmonic imaging were significantly better than those on conventional ultrasonography. In 2 of 10 healthy volunteers all 4 techniques yielded false-positive diagnoses of parenchymal abnormalities. In conclusion, tissue harmonic imaging and pulse inversion harmonic imaging are sensitive techniques for depicting renal parenchymal lesions in acute pyelonephritis. Despite relatively lower specificities and negative predictive values, these techniques are thought to be useful for the depiction of subtle parenchymal changes in acute pyelonephritis.
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Affiliation(s)
- B Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Choi YJ, Lee JD, Yang KH, Woo JY, Kim BK, Bang BK, Shim SI. Immunotactoid glomerulopathy associated with idiopathic hypereosinophilic syndrome. Am J Nephrol 2000; 18:337-43. [PMID: 9653841 DOI: 10.1159/000013362] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A case of immunotactoid glomerulopathy in an 18-year-old man with an idiopathic hypereosinophilic syndrome is presented. The patient showed cervical lymphadenopathy, asymptomatic proteinuria of nephrotic range, and hematuria without any defined immunologic disease. Marked and prolonged hypereosinophilia was found in peripheral blood (eosinophil count; 6,248/mm3) and bone marrow (eosinophil series; 32%). Diffuse and/or nodular eosinophilic infiltration was identified in multiple organs such as kidney, stomach, liver, lymph node, and skin. Renal biopsy revealed endocapillary proliferative features of typical immunotactoid glomerulopathy with IgG and C3 deposition and microtubular structures of variable size, 20-80 nm in diameter, mainly in the subendothelium. This study suggests that immunotactoid glomerulopathy may be a secondary immunologic manifestation of the tissue damage by eosinophils in the idiopathic hypereosinophilic syndrome.
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Affiliation(s)
- Y J Choi
- Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea.
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Abstract
We report a patient with systemic lupus erythematosus (SLE), who had developed metabolic alkalosis during plasmapheresis. The metabolic alkalosis could be promptly corrected by reducing the amount of citrate load. The development of metabolic alkalosis can be explained by the citrate load during plasmapheresis. Careful monitoring of acid base status is mandatory in patients with limited renal function and the reduction of citrate load may be advisable in plasmapheresis.
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Affiliation(s)
- M Y Choi
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea
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Abstract
'Pauci-immune' glomerulonephritis has been recognized as an important cause of rapidly progressive glomerulonephritis. The paucity of immune deposits can be separated from the other two major immunohistologic variants of crescentic glomerulonephritis, ie, antiglomerular basement membrane (GBM) antibody-mediated and immune complex-mediated glomerulonephritis. Here we describe the case of a 42-year-old woman with pauci-immune' glomerulonephritis and vasculitis presenting as rapidly progressive renal failure with characteristic pathologic and immunohistologic findings. And in this case, despite oliguria and rapid deterioration of renal function, the renal function recovered partially and continued to be stabilized with a favourable response to hemodialysis and combined system immunosuppressive therapy.
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Affiliation(s)
- J Y Han
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea
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