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
;
Arteries
;
Constriction, Pathologic
;
Coronary Artery Disease
;
Coronary Vessels
;
Humans
;
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
;
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
;
Disease Models, Animal
;
*Drug-Eluting Stents
;
Female
;
Hyperplasia
;
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
;
Stents
;
Thrombocythemia, Essential
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Thrombocytosis
;
Thrombosis
8.Successful Management of a Patient with Factor XI Deficiency and Unstable Angina by Percutaneous Coronary Intervention.
Sang Hyun LEE ; Myung Ho JEONG ; Il Seok SOHN ; Sang Yup LIM ; Seo Na HONG ; Dong Goo KANG ; Kye Hun KIM ; Hyung Wook PARK ; Young Joon HONG ; Ju Han KIM ; Weon KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Jung Chaee KANG
Korean Circulation Journal 2005;35(11):860-863
Factor XI deficiency is a very rare congenital coagulation disorder. Bleeding complications should be considered when treating a patient with unstable angina and congenital coagulation disorder during and after percutaneous coronary intervention (PCI). Thrombotic complications can develop after fresh frozen plasma (FFP) transfusion and drug-eluting stent (DES) implantation. We report here on the successful management of a patient having unstable angina with factor XI deficiency, and this patient was treated with PCI under intravascular guidance and with the aid of FFP and hemostatic devices.
Angina, Unstable*
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Angioplasty
;
Drug-Eluting Stents
;
Factor XI Deficiency*
;
Factor XI*
;
Hemorrhage
;
Humans
;
Percutaneous Coronary Intervention*
;
Plasma
9.Is Thyroid Hormone a Risk Factor of Coronary Atherosclerosis in Korean Patients?.
Kyung Ho YUN ; Myung Ho JEONG ; Dong Goo KANG ; Kye Hun KIM ; Sang Yup LIM ; Yeon Sang LEE ; Sang Hyun LEE ; Seo Na HONG ; Young Joon HONG ; Ju Han KIM ; Young Keun AHN ; Jeong Gwan CHO ; Jong Chun PARK ; Nam Ho KIM ; Seok Kyu OH ; Jin Won JEONG ; Jung Chaee KANG
Korean Circulation Journal 2005;35(1):43-48
BACKGROUND AND OBJECTIVES: Overt and subclinical hypothyroidism is known to be associated with developing atherosclerosis and adverse changes in blood lipid. There has been no data regarding the effects of a normal range of thyroid hormone on the presence of coronary atherosclerosis. SUBJECTS AND METHODS: We studied 1 25 consecutive patients (age: 60.0 +/-11.1 years, male: female=84:41) who underwent diagnostic coronary angiography. The clinical diagnoses on admission were stable angina (32.0%), unstable angina (53.6%), and acute myocardial infarction (14.4%). The thyroid hormones [thyroid stimulating hormone (TSH), free thyroxine and free 3 -iodothyronine], serum lipid levels, high sensitivity C-reactive protein (hsCRP) level, homocysteine and fibrinogen levels were measured. The coronary angiographic results were compared with laboratory findings. RESULTS: The angiographic diagnoses of coronary artery disease were no significant stenosis in 4 1 patients (32.8%), single vessel disease in 47 patients (37.6%) and multivessel disease in 37 patients (29.6%). The serum TSH levels showed a trend toward higher levels in the patients with multivessel disease compared to the patients with no significant stenosis (1.22+/-0.96 uIU/mL vs. 0.73+/-0.53 uIU/mL, respectively, p=0.053). According to the levels of TSH (<1.0 uIU/mL and > or =1.0 IU/mL), the incidence of multivessel disease was significantly higher in the patients with high serum TSH levels (23.1 % vs. 40.0%, respectively, p=0.038). A significant correlation was observed between the levels of TSH and the monocyte count (r=0.251, p=0.005), hsCRP level (r=0.208, p=0.023) and homocysteine level (r=0.279, p=0.002). CONCLUSION: The high level of serum TSH is associated with multivessel disease, abnormal inflammatory markers and high homocysteine levels.
Angina, Stable
;
Angina, Unstable
;
Arteriosclerosis
;
Atherosclerosis
;
C-Reactive Protein
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease*
;
Coronary Disease
;
Diagnosis
;
Fibrinogen
;
Homocysteine
;
Humans
;
Hypothyroidism
;
Incidence
;
Male
;
Monocytes
;
Myocardial Infarction
;
Reference Values
;
Risk Factors*
;
Thyroid Gland*
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Thyroid Hormones
;
Thyroxine
10.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
;
Angina, Stable
;
Angina, Unstable
;
Atherosclerosis
;
Constriction, Pathologic
;
Coronary Angiography
;
Electrophoresis, Agar Gel
;
Fees and Charges
;
Follow-Up Studies
;
Humans
;
Inflammation
;
Lipoproteins
;
Myocardial Infarction
;
Pathologic Processes
;
Percutaneous Coronary Intervention
;
Prognosis