1.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
2.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
3.A Case of Paraneoplastic Autoimmune Retinopathy in a Young Man with Testicular Cancer
Myungho SEO ; Seongmi KIM ; Ahnul HA ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2024;65(11):753-759
Purpose:
To report a case of paraneoplastic autoimmune retinopathy in a patient with a history of testicular cancer.Case summary: A 29-year-old man presented with photopsia and floaters. Initial fundus examination revealed no abnormal findings. However, he returned 1 month later with complaints of visual field defects. Fundus examination revealed diffuse white spots in the macula and midperipheral retina and fundus autofluorescence demonstrated hyper-autofluorescence. Optical coherence tomography showed disruption of the ellipsoid zone sparing the fovea. Visual field examination revealed peripheral visual field defects and an electroretinogram showed reduced rod and cone cell responses. Considering his history of testicular cancer, serum paraneoplastic autoantibody panel testing was performed which revealed borderline levels of anti-recoverin antibody leading to a diagnosis of paraneoplastic autoimmune retinopathy. The patient was treated with oral steroids and mycophenolate mofetil for 1 year. However, there was no improvement in the subjective symptoms or ophthalmologic findings.
Conclusions
This case of paraneoplastic autoimmune retinopathy in a young man with a history of testicular cancer highlights an early clinical presentation of the disease. It is crucial to recognize that the initial clinical presentation of autoimmune retinopathy can be nonspecific.
4.Comparison of Methods Used to Prevent Fogging of a Non-contact Wide-field Viewing System during Vitrectomy
Myungho SEO ; Ahnul HA ; Hye Jin LEE ; Jinho JEONG ; Ki Tae NAM
Journal of the Korean Ophthalmological Society 2023;64(10):899-903
Purpose:
To compare the effectiveness of warm saline and anti-fog solution for preventing fogging of a non-contact wide-field viewing system during vitrectomy.
Methods:
Five liters of water at 36°C were placed in a transparent container. The fogging areas of wide-field lenses were microscopically measured. We created three groups: lenses soaked in normal saline at 25°C for 1 minute (control), lenses soaked in normal saline at 50°C for 1 minute (warm saline), and lenses that were wiped with a sponge soaked in anti-fog solution (ULTRASTOP pro med. Solution, Sigmapharm, Vienna, Austria) after prior soaking in normal saline at 25°C for 1 minute (anti-fog). Images of fogged areas were acquired at 10 seconds and 1, 3, and 5 minutes. Extent of fogged areas and central lens invasion were determined. All experiments were repeated 10 times.
Results:
In the control group, the entire areas were always completely fogged. The average fog coverage values were 4.34 ± 1.28, 6.30 ± 1.38, 56.00 ± 25.01, and 93.81 ± 5.88% at 10 seconds and 1, 3, and 5 minutes in the warm saline group and 4.74 ± 0.57, 7.35 ± 0.96, 10.13 ± 1.09, and 11.74 ± 1.74% in the anti-fog group, respectively. There were significant differences at 3 and 5 minutes (p = 0.029, p = 0.012). Fogging of the central lens was detected in 8 tests after 3 minutes and all 10 tests after 5 minutes in the warm saline group, but no fogging was detected in the anti-fog group.
Conclusions
Application of an anti-fog solution to a wide-field viewing lens prevents lens fogging during vitrectomy.
5.A Case of Successful Percutaneous Coronary Intervention by Fractional Flow Reserve and 13N-Ammonia Positron Emission Tomography.
Jinsun CHANG ; Hayoung CHOI ; Hyeong Won SEO ; Min Chul KIM ; Hyun Kuk KIM ; Youngkeun AHN ; Myung Ho JEONG
Journal of Lipid and Atherosclerosis 2015;4(1):39-43
A 43-year-old male presented with effort angina. Ammonia positron emission tomography (PET) revealed reversible perfusion defect in left anterior descending artery (LAD) and left circumflex artery (LCX) territories with decreased coronary flow reserve. Coronary angiogram showed significant stenosis in proximal LAD and intermediate diffuse stenosis in LCX and right coronary artery (RCA). Fractional flow reserve (FFR) showed similar results with ammonia PET. After percutaneous coronary intervention for LAD and LCX, flow and pressure checked by PET and FFR showed improvement. Simultaneously use of ammonia PET and FFR could be useful for determining ischemia-inducible lesion especially in diffuse intermediate lesion with discrepancy between functional studies.
Adult
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Ammonia
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Arteries
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Constriction, Pathologic
;
Coronary Artery Disease
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Coronary Vessels
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Humans
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Male
;
Percutaneous Coronary Intervention*
;
Perfusion
;
Positron-Emission Tomography*
6.Anti-inflammatory Effect of Abciximab-Coated Stent in a Porcine Coronary Restenosis Model.
Young Joon HONG ; Myung Ho JEONG ; Sang Rok LEE ; Seo Na HONG ; Kye Hun KIM ; Hyung Wook PARK ; Ju Han KIM ; Weon KIM ; Youngkeun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Journal of Korean Medical Science 2007;22(5):802-809
The aim of this study was to examine the anti-inflammatory effect of abciximab-coated stent in a porcine coronary overstretch restenosis model. Ten abciximab-coated stents, ten sirolimus-eluting stents (SES), and ten paclitaxel-eluting stents (PES) were deployed with oversizing (stent/artery ratio 1.3:1) in porcine coronary arteries, and histopathologic analysis was done at 28 days after stenting. There were no significant differences in the neointima area normalized to injury score and inflammation score among the three stent groups (1.58+/-0.43 mm2, 1.57+/-0.39 mm2 in abciximab-coated stent group vs. 1.69+/-0.57 mm2, 1.72+/-0.49 mm2 in the SES group vs. 1.92+/-0.86 mm2, 1.79+/-0.87 mm2 in the PES group, respectively). In the neointima, most inflammatory cells were lymphohistiocytes. Significant positive correlations were found between the extent of inflammatory reaction and the neointima area (r=0.567, p<0.001) and percent area stenosis (r=0.587, p<0.001). Significant correlations were found between the injury score and neointimal area (r=0.645, p<0.001), between the injury score and the inflammation score (r=0.837, p<0.001), and between the inflammation score and neointimal area (r=0.536, p=0.001). There was no significant difference in the inflammatory cell counts normalized to injury score among the three stent groups (75.5+/-23.1/microliter in abciximabcoated stent group vs. 78.8+/-33.2/microliter in the SES group vs. 130.3+/-46.9/microliter in the PES group). Abciximab-coated stent showed comparable inhibition of inflammatory cell infiltration and neointimal hyperplasia with other drug-eluting stents in a porcine coronary restenosis model.
Animals
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Anti-Bacterial Agents/administration & dosage
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Anti-Inflammatory Agents/*pharmacology
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Antibodies, Monoclonal/administration & dosage/*pharmacology
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Arteries/injuries/pathology
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Constriction, Pathologic
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Coronary Restenosis/*therapy
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Disease Models, Animal
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*Drug-Eluting Stents
;
Female
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Hyperplasia
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Immunoglobulin Fab Fragments/administration & dosage/*pharmacology
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Inflammation
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Paclitaxel/administration & dosage
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Sirolimus/administration & dosage
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Swine
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Tunica Intima/pathology
7.Very Late Stent Thrombosis in a Drug-Eluting Stent due to Interruption of Anti-Platelet Agents in Patients With Acute Myocardial Infarction and Thrombocytosis.
Hong Sang CHOI ; Myung Ho JEONG ; Il Kook SEO ; Min Goo LEE ; Jum Suk KO ; Keun Ho PARK ; Doo Sun SIM ; Nam Sik YOON ; Kye Hun KIM ; Hyung Wook PARK ; Young Joon HONG ; Ju Han KIM ; Youngkeun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2011;41(7):417-420
Stent thrombosis is a fatal complication in patients who have undergone percutaneous coronary intervention, and discontinuation of anti-platelet agent is a major risk factor of stent thrombosis. We report a rare case of very late stent thrombosis (VLST) following discontinuation of anti-platelet agents in a patient who experienced acute myocardial infarction and essential thrombocytosis. She had undergone implantation of a drug eluting stent (DES) and a bare metal stent (BMS) two and half years prior to her presentation. VLST developed in DES, not in BMS, following interruption of anti-platelet therapy.
Drug-Eluting Stents
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Humans
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Myocardial Infarction
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Percutaneous Coronary Intervention
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Risk Factors
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Stents
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Thrombocythemia, Essential
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Thrombocytosis
;
Thrombosis
8.The Clinical Value of Modified Low Density Lipoprotein-Cholesterol in Patients Who Underwent Percutaneous Coronary Intervention.
Nam Sik YOON ; Myung Ho JEONG ; Young Aeh KIM ; Woo Suk LEE ; Sun Ho HWANG ; Sang Rok LEE ; Seo Na HONG ; Kye Hun KIM ; Hyung Wook PARK ; Ju Han KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2008;38(9):475-482
BACKGROUND AND OBJECTIVES: It is well known that atherosclerosis is characterized by chronic inflammation of an injured intima and the pathological processes are initiated by an accumulation of morphologically distinct, modified forms of low density lipoprotein (LDL)-cholesterol. However, it is not well known whether the level of modified LDL-cholesterol has clinical significance for the patients who underwent percutaneous coronary intervention (PCI). SUBJECTS AND METHODS: Eighty seven patients (mean age: 63.0 +/- 11.1 years, 58 men) who underwent PCI were enrolled. The patients with stable or unstable angina pectoris were classified as group I (n=44, mean age: 62.4 +/- 9.3 years), and the patients with acute myocardial infarction were classified as group II (n=43, mean age: 63.6 +/- 12.7 years). Modified LDL-cholesterol was expressed semiquantitatively by agarose gel electrophoresis with using the charge modification frequency (CMF). The clinical and coronary angiographic data was analyzed. RESULTS: The clinical diagnosis was stable angina in 13 patients, unstable angina in 31 patients, non-ST elevation myocardial infarction in 5 patients and ST elevation myocardial infarction in 38 patients. There were no significant differences of the CMF between two groups (3.0 +/- 7.9 vs. 2.1 +/- 10.9, respectively, p=0.671). The diameter stenosis was severe in the patients with a CMF greater than 10 (84.0 +/- 10.4% vs. 78.6 +/- 13.7%, respectively, p=0.047). The six-month major adverse cardio-vascular events (MACEs) had no relationship with the CMF in group I. However, in group II, the 6-month MACEs developed more frequently in the patients with a CMF higher than 10 {2 (28%) for group ll vs. 2 (5%) for group 1, p=0.031}. The patients with acute myocardial infarction and whose CMF was higher than 10 had in-stent restenosis observed on their follow-up coronary angiography (p=0.003). CONCLUSION: A higher level of modified LDL-cholesterol is associated with severe angiographic findings and a poor prognosis for patients with acute myocardial infarction.
Acute Coronary Syndrome
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Angina, Stable
;
Angina, Unstable
;
Atherosclerosis
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Constriction, Pathologic
;
Coronary Angiography
;
Electrophoresis, Agar Gel
;
Fees and Charges
;
Follow-Up Studies
;
Humans
;
Inflammation
;
Lipoproteins
;
Myocardial Infarction
;
Pathologic Processes
;
Percutaneous Coronary Intervention
;
Prognosis
9.Comparison of the Clinical Effect of Cutting Balloon Angioplasty and Drug-Eluting Stent for Treating the Focal Type of In-Stent Restenosis.
Sang Rok LEE ; Myung Ho JEONG ; Sang Yup LIM ; Seo Na HONG ; Kye Hun KIM ; Il Suk SOHN ; Young Joon HONG ; Hyung Wook PARK ; Ju Han KIM ; Weon KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2006;36(4):279-284
BACKGROUND AND OBJECTIVES: Treating coronary in-stent restenosis (ISR) has become one of the major challenges for interventional cardiologists. The aim of this study was to compare the clinical effect of performing cutting balloon angioplasty (CBA) with implanting drug eluting stent (DES) for treating the focal type of instent restenosis (ISR). SUBJECTS AND METHODS: We retrospectively analyzed 56 patients who were treated by CBA (Group I: 59.6+/-9.6 years, male : female=46 : 10) and 20 patients who were treated by DES (Group II: 61.0+/-8.5 year, male : female=15 : 5) between January 2002 and December 2004. All the patients had the focal type of ISR (Group I - type IB : IC : ID=23 : 9 : 26, Group II - type IB : IC : ID=10 : 3 : 7). The 6-month angiographically determined late loss and the major adverse cardiac events (MACE) were compared between the two groups. RESULTS: The baseline clinical characteristics were similar between the two groups except for the high proportion of old myocardial infarction [4 (7.1%) and 3 (15%); respectively, p=0.02] and low left ventricular ejection fraction (62.6+/-8.8% vs. 55.2+/-13.8%, respectively, p=0.02) in group II. The acute gain after the procedure was higher in group II (1.86+/-0.53 mm vs. 2.54+/-0.20 mm, respectively, p<0.01). Follow-up angiography at 6 months was achieved in 40 of 56 (71.4%) patients in group I and in 15 of 20 patients (75%) in group II. The late loss was lower in group II than in group I (0.49+/-0.35 mm vs. 0.14+/-0.24 mm respectively, p<0.01). MACE during the 6-month follow-up developed in 8 patients (14.3%) of group I and in 1 patient (5.0%) of group II (p=0.04). CONCLUSION: DES is associated with a better clinical outcome than CBA for the treatment of the focal type of ISR.
Angiography
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Angioplasty, Balloon*
;
Constriction, Pathologic
;
Coronary Disease
;
Drug-Eluting Stents*
;
Follow-Up Studies
;
Humans
;
Male
;
Myocardial Infarction
;
Retrospective Studies
;
Stents
;
Stroke Volume
10.The Relationship of Inflammatory Reaction with the Mortality of Type B Acute Aortic Syndrome.
Seok LEE ; Weon KIM ; Seung Hwan HWANG ; Jong Won CHUNG ; Jung Sun CHO ; Nam Sik YOON ; Seo Na HONG ; Sang Rok LEE ; Kye Hun KIM ; Hyung Wook PARK ; Ju Han KIM ; Young Keun AHN ; Myung Ho JEONG ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2006;36(5):387-392
BACKGROUND AND OBJECTIVES: Systemic activation of the inflammatory system after aortic injury may play a role in the development of complications. The aim of this study was to determine the significance of the inflammatory markers for the mortality of patients suffering with medically treated type B acute aortic syndrome (AAS). SUBJECTS AND METHODS: We analyzed a total of 81 patients who were admitted with AAS within 24 hours from the onset of the symptoms and who were medically treated between January 2000 and December 2004. The patients were divided into two groups: the moribund patients who died within 2 weeks (group I: n=8, mean age: 64.0+/-11.0 years) and the patients who survived over 2 weeks (group II: n=73, mean age: 62.6+/-13.7 years). The serum high-sensitivity C-reactive protein (hsCRP) levels, the white blood cell (WBC) and monocyte counts, and the plasma D-dimer levels were measured on admission. RESULTS: The baseline clinical characteristics were not different between the two groups. The major causes of in-hospital death in group I were extensions or rupture of type B dissection (6 cases) and acute renal failure (2 cases). The multivariate analysis demonstrated that a high monocyte count (>1,250/mm3), and high levels of hsCRP (>11 mg/dL) and D-dimer (>1.2 mg/dL) were independent determinants of the short-term mortality (OR=6.39, 6.14 and 9.00; 95% CI=1.19 to 34.1, 1.14 to 32.9 and 1.20 to 67.4; p=0.02, 0.04 and 0.03, respectively). CONCLUSION: Systemic activation of the inflammatory system in type B AAS patients may be one of the important factors associated with the development of short-term mortality.
Acute Kidney Injury
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C-Reactive Protein
;
Humans
;
Inflammation
;
Leukocytes
;
Monocytes
;
Mortality*
;
Multivariate Analysis
;
Plasma
;
Prognosis
;
Rupture