1.Bromfenac as Adjunctive Treatment with Intravitreal Bevacizumab in Branch Retinal Vein Occlusion of Macular Edema
Jong Myoung YUN ; Young Wook CHO ; Jong Won MOON
Journal of the Korean Ophthalmological Society 2020;61(2):183-189
PURPOSE: To evaluate the effectiveness of 0.1% topical bromfenac as an adjunctive treatment with intravitreal bevacizumab (IVB) injection for branch retinal vein occlusion (BRVO) patients.METHODS: We retrospectively evaluated 68 eyes of 68 patients with macular edema (ME) secondary to BRVO who were treated with IVB injection and followed up for at least 12 months. Of the 68 eyes, 38 were treated with IVB combined with 0.1% topical bromfenac and 30 were treated with IVB alone. IVB reinjection was performed in cases of recurrence. The primary outcome measurement was the number of IVB injections. Changes in the best-corrected visual acuity (BCVA) and central foveal thickness (CFT) during the 12-month follow-up were compared.RESULTS: There was no significant difference in the BCVA or CFT between the two groups at the initial and final examinations. However, the number of IVB injections was significantly lower in the 0.1% bromfenac-treated eyes (p < 0.01) than in the control eyes (4.1 ± 0.7 vs. 5.0 ± 0.6 times).CONCLUSIONS: Compared to IVB monotherapy, topical bromfenac as an adjunctive treatment with IVB injection of eyes with ME secondary to BRVO did not affect visual outcomes, but it reduced the number of IVB injections.
Bevacizumab
;
Follow-Up Studies
;
Humans
;
Macular Edema
;
Recurrence
;
Retinal Vein Occlusion
;
Retinal Vein
;
Retinaldehyde
;
Retrospective Studies
;
Visual Acuity
2.Infectious Crystalline Keratopathy Caused by Alternaria
Hye Jin HONG ; Jong Myoung YUN ; Dae Jin PARK
Journal of the Korean Ophthalmological Society 2019;60(11):1112-1116
PURPOSE: To report a case of infectious crystalline keratopathy caused by Alternaria in the corneal center. CASE SUMMARY: A 66-year-old male visited our clinic with right ocular pain and visual loss after corneal trauma caused by a foreign body hitting his right eye while performing farm work 1 month prior to his visit. The patient had no history of corneal surgery and long-term use of topical corticosteroid. A corneal epithelial defect and whitish snowflake margin infiltration around the corneal stroma were observed in the corneal center, but there was an absence of conjunctival injection and anterior segment inflammation. Cultures and a biopsy of the corneal scrapings revealed Alternaria species fungus. The patient was treated with 1% topical voriconazole and 0.5% moxifloxacin, together with oral voriconazole (400 mg/day). After 2 months of treatment, the disease was completely cured, with a minute corneal opacity. CONCLUSIONS: We successfully treated a rare case of infectious crystalline keratopathy caused by Alternaria, which has not been previously reported in the Republic of Korea.
Aged
;
Agriculture
;
Alternaria
;
Biopsy
;
Corneal Injuries
;
Corneal Opacity
;
Corneal Stroma
;
Crystallins
;
Foreign Bodies
;
Fungi
;
Humans
;
Inflammation
;
Male
;
Republic of Korea
;
Voriconazole
3.Evaluation of Vitros 950 for Quantitative Analysis of Digoxin and Theophylline.
Jong Phil KIM ; Min KIM ; Myoung YUN ; Chang Jae LEE ; Jong Hee SHIN ; Soon Pal SUH ; Dong Wook RYANG
Korean Journal of Clinical Pathology 1999;19(4):409-413
BACKGROUND: We evaluated the Vitros 950 (Johnson & Johnson Clinical Diagnostics, Inc., NY, USA) in the measurement of digoxin and theophylline levels and compared its results to those of the TDxFLx II (Abbott Laboratories, IL, USA) used for therapeutic drug monitoring (TDM) world-widely in order to assess the utility of the Vitros 950 as a TDM instrument. METHODS: From June 1997 to August 1997, 125 and 135 candidates for TDM were randomly chosen to measure digoxin and theophylline, respectively, using the Vitros 950 and TDxFLx II. The relationship between its results and those of TDxFLx II were determined. The within-run and between-run precisions of the Vitros 950 were determined using two controls (Vitros Performance Verifier I and II; J & J Clinical Diagnostics, Inc., NY, USA). The high-concentration control (Vitros Performance Verifier II) was diluted in Vitros 7% BSA to 5 dilutions. And linearity for quantitative analysis of digoxin and theophylline were determined. RESULTS: The coefficients of variation (CV) for the within-run of the Vitro 950 were 0.8% - 4.4%. And the CV for between-run precision of the Vitro 950 were 1.7% - 12.3%. The linearity of digoxin and theophylline were relatively good. The correlations (r) of digoxin and theophylline levels with those determined by the Abbott TDxFLx II were 0.95 and 0.93, respectively (P <0.001). CONCLUSIONS: The recently developed dry slide method of the Vitros 950 proves to good precision and linearity for quantitative analysis of digoxin and theophylline. Its results correlate well with those of the TDxFLx II. The Vitros 950 does not require an elaborate preparatory protocol for the sample, and is easy to use and maintain.So it is considered a highly feasible instrument for stat test.
Digoxin*
;
Drug Monitoring
;
Theophylline*
4.Enlarged lymph nodes diagnosed with Langerhans cell histiocytosis found in a direct inguinal hernia: a case report
Jong Hyuk YUN ; Myoung Won SON ; Geum Jong SONG ; Hye In AHN ; Sang Ho BAE ; Moon Soo LEE
Journal of Minimally Invasive Surgery 2021;24(4):223-226
It is unusual that an unexpected mass is encountered within a hernia sac. This report describes a patient diagnosed with Langerhans cell histiocytosis (LCH) after surgery for an inguinal hernia. A 64-year-old male patient presented with inguinal mass over a 1-year period. Direct inguinal hernias were found in both sides, and enlarged lymph nodes were found in both hernia sacs. Laparoscopic totally extraperitoneal repair was done, and one enlarged lymph node within inguinal hernia sac was excised for diagnostic purposes.Microscopic findings showed the distinctive cytologic features of Langerhans cells and immunohisto chemical staining are positive for CD1a and S-100. LCH is a rare disorder, and the involvement of the lymph nodes with no other sites of disease is uncommon. To the best of our knowledge, this is the first report of LCH within an inguinal hernia sac. Multidisciplinary approach should be considered to provide better detection and treatment.
5.Jejunogastric intussusception after totally laparoscopic distal gastrectomy for gastric cancer: a rare case report and review of the literature
Geum Jong SONG ; Jong Hyuk YUN ; Hae Il JUNG ; Myoung Won SON ; Moon-Soo LEE
Korean Journal of Clinical Oncology 2022;18(1):56-59
Jejunogastric intussusception (JGI) is a rare complication of gastric surgery, with most cases occurring in the form of long-term complications following gastric surgeries. We present a case of JGI in a 74-year-old man who presented with progressive abdominal pain and distention, and was admitted to our hospital. The patient had undergone a totally laparoscopic distal gastrectomy with a Billroth II gastrojejunostomy 9 days previously. Computed tomography and endoscopic findings revealed the presence of a small bowel loop within the gastric lumen, which we failed to reduce in size. We performed an emergency laparoscopic exploration and immediate reduction of the JGI. The efferent and afferent loops were then fixed to the mesentery and the stomach. The postoperative course was uneventful and the patient remained asymptomatic during the 1-year follow-up period.
6.Phenylacetate Induces Growth Inhibition and Apoptosis of Human Osteosarcoma Cells.
Jong Hyuk PARK ; Min Young PARK ; Ho Sung PARK ; Kyu Yun JANG ; Myoung Ja CHUNG ; Woo Sung MOON ; Dong Geun LEE ; Myoung Jae KANG
Cancer Research and Treatment 2004;36(5):324-329
PURPOSE: Phenylacetate has potent antiproliferative effects in many malignant tumors. However, the exact mechanism as to how phenylacetate induces cell growth arrest remains unclear and very little is known about its effects on human osteosarcoma cells. In this study, we investigated whether phenylacetate is effective against two osteosarcoma cell lines (HOS and U-2 OS) in vitro. MATERIALS AND METHODS: The viability of phenylacetate- treated cell lines was assessed by trypan blue exclusion assay, and the cell cycle distribution was measured by flow cytometry. To measure cell apoptosis, poly (ADP- ribose) polymerase cleavage assay and flow cytometry were employed. The expressions of cell cycle-regulatory proteins and the apoptosis-related genes were evaluated by western blot analysis. RESULTS: Phenylacetate was found to inhibit the growth of osteosarcoma cells, induce cell cycle arrest in the G1 phase, and induce apoptosis. A significant decrease in Bcl-2 expression and a mild up-regulation of Bax were also observed in both phenylacetate-treated cell lines. Reduced phosphorylation of the pRb and the increased expression of p21Cip1 were observed subsequent to treatment with phenylacetate. CONCLUSION: These findings support the idea that pheny lacetate may be an effective chemotherapeutic agent to be employed in the future against osteosarcoma, because phenylacetate acts to inhibit the growth of osteosarcoma cells through cell cycle arrest and apoptosis.
Apoptosis*
;
Blotting, Western
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Cell Line
;
Flow Cytometry
;
G1 Phase
;
Humans*
;
Osteosarcoma*
;
Phosphorylation
;
Trypan Blue
;
Up-Regulation
7.Treatment Outcome and Prognostic Factors in Patients with Advanced Hepatocellular Carcinoma (TNM Stage IVa) according to Anticancer drugs of Transhepatic Arterial Chemoinfusion.
Sang Hoon AHN ; Kwang Hyub HAN ; Young Hoon YOUN ; Myoung Hwan KIM ; Kun Hoon SONG ; Kwan Sik LEE ; Chae Yoon CHON ; Young Myoung MOON ; Do Yun LEE ; Jong Tae LEE
The Korean Journal of Hepatology 2000;6(4):456-467
BACKGROUND/AIMS: The study proposed to evaluate the efficacy of anticancer drugs of intraarterial chemoinfusion and investigate prognostic factors influencing survival. METHODS: A total of 127 patients diagnosed as having advanced hepatocellular carcinoma(HCC) of same stage (TNM stage IVa) from 1996 to 1998 were examined. Two intraarterial infusion chemotherapeutic regimens were employed: Adriamycin(Group I) and Cisplatin(Group II). RESULTS: Overall survival was significantly diffrent(10.0 vs 5.7months) and favored Group I. By the univariate analysis, significant prognostic factors included: age, portal vein thrombosis(PVT), size(>5cm) and type of tumor, response rate (size & -fetoprotein) at 3 months after therapy, level of albumin, alkaline phosphatase, and total bilirubin. After repeated therapy, Group I showed better survival (14.0 vs 7.9 months), but there was no statistical difference in survival rate between two groups in the case of large size, PVT, and diffuse type. CONCLUSION: Group I showed better survival than Group II in advanced HCC of TNM stage IVa. But, considering prognostic factors, there was no significant difference in survival rate between two groups except small size or nodular type of HCC. TNM classification of stage IVa should be reconsidered to include prognostic factors influencing survival rate such as PVT, size and type of HCC.
Alkaline Phosphatase
;
Bilirubin
;
Carcinoma, Hepatocellular*
;
Classification
;
Humans
;
Infusions, Intra-Arterial
;
Neoplasm Staging
;
Portal Vein
;
Psychotherapy, Group
;
Survival Rate
;
Treatment Outcome*
8.Changes of Paraspinal Muscles in Postmenopausal Osteoporotic Spinal Compression Fractures: Magnetic Resonance Imaging Study.
Jong Yun KIM ; Soo Uk CHAE ; Gang Deuk KIM ; Myoung Soo CHA
Journal of Bone Metabolism 2013;20(2):75-81
BACKGROUND: To investigate the changes of cross sectional area (CSA) in paraspinal muscles upon magnetic resonance imaging (MRI) and bone mineral density (BMD) in postmenopausal osteoporotic spinal compression fractures. METHODS: We reviewed 81 postmenopausal women with osteoporosis, who had underwent MRI examination. The patients were divided into 51 patients who had osteoporotic spinal compression fractures (group I), and 30 patients who without fractures (group II). Group I were subdivided into IA and IB, based on whether they were younger (IA) of older (IB) than 70 years of age. We additionally measured body mass index and BMD. The CSA of multifidus, erector spinae, paraspinal muscles, psoas major (PT), and intervertebral (IV) discs were measured. The degree of fatty atrophy was estimated using three grades. RESULTS: The BMD and T-score of group I were significantly lower than those of group II. The CSA of erector spinae, paraspinal muscles, and PT in the group I was significantly smaller than that of group II. The CSA of paraspinal muscles in group IB were significantly smaller than those of group IA. The CSA of erector spinae, mutifidus, and PT in group IB were smaller than those of group IA, but the difference was not statistically significant. Group 1 exhibited greater fat infiltration in the paraspinal muscle than group II. CONCLUSIONS: Postmenopausal osteoporotic spinal compression fracture is associated with profound changes of the lumbar paraspinal muscle, reduction of CSA, increased CSA of IV disc, and increased intramuscular fat infiltration.
Atrophy
;
Body Mass Index
;
Bone Density
;
Female
;
Fractures, Compression*
;
Humans
;
Magnetic Resonance Imaging*
;
Magnetics*
;
Magnets*
;
Muscles*
;
Osteoporosis
;
Postmenopause
;
Psoas Muscles
9.Change of blood viscosity and deformability in oral squamous cell carcinoma patients.
Pil Young YUN ; Hoon MYOUNG ; Jong Ho LEE ; Pill Hoon CHOUNG ; Myung Jin KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2004;30(3):181-185
Malignant tumor have hypoxic cell fraction, which makes radio-resistant and hypoxia in tumor is a result from the blood flow decrease caused by increase in blood flow resistance. Blood viscosity increase is major factor of increased blood flow resistance and it could be attributed to the decrease in blood deformability index. For the evaluation of the change of blood viscosity and blood deformability in oral squamous cell carcinoma, we perform the test of the change of those factors between the normal control group and oral squamous cell carcinoma cell patient group. Relative viscosity measured against distilled water was 5.25+/-0.14 for normal control group, and 5.78+/-0.26 for the SCC patient group and there was statistical significance between the groups. However, there was no significant difference between the groups in blood viscosity between the groups by tumor size (T1+T2 vs T3+T4). Also, there was no significant difference between the normal control group and SCC patient group in blood deformability index and between the groups by tumor size (T1+T2 vs T3+T4). Increase in blood viscosity was confirmed with this study and it can be postulated that modification blood viscosity might contribute to decrease of hypoxia fraction in oral squamous cell carcinoma, thus improve the effect of radiotherapy and it can be assumed that the main factor of blood viscosity increase is not decrease of blood deformability in oral squamous cell carcinoma.
Anoxia
;
Blood Viscosity*
;
Carcinoma, Squamous Cell*
;
Humans
;
Radiotherapy
;
Viscosity
;
Water
10.A Case of Behcet's Disease with Multiple Longitudinal Ulcers over the Colon.
Young Jin KANG ; Hee Ug PARK ; Jong Han OK ; Tae Duk YUN ; Jin Youn LEE ; Mi Myoung KIM ; Dal Dyuk SEO
Korean Journal of Gastrointestinal Endoscopy 1996;16(3):511-516
We presented here a rare case of intestinal Behecet's disease simulating Grohn's disease. A 20 year old female complained of recurrence of oral ulcer, genital ulcer, arthralgia, erythema nodosum, abdominal pain and diarrhea, but she had no anal ulcer or anal fistulas. The colonoscopic examanation disclosed diffuse colonie involvement with multiple longitudinal ulcers and inflammatory pseudopolyposis. In hospital, she received ileocecectomy because of distal ilea perforation. Postoperative specimen showed multiple geographic ulcer on ileocecal region, creeping mesenteric fat and thickening of cecal wall. Pathological examination showed perivasculitis, transmural inflammation, fissuring, multiple lymph follicles which are compatible with intestinal Behect's disease. There were no granuloma sugges tive of Crohn's disease. Clinically, the patient met the international criteria of Behcet's disease. Punched out ulcer in the ileocecal region and pathological findings described above confirmed the diagnosis of intestinal Behcet's disease.
Abdominal Pain
;
Arthralgia
;
Colon*
;
Crohn Disease
;
Diagnosis
;
Diarrhea
;
Erythema Nodosum
;
Female
;
Fissure in Ano
;
Granuloma
;
Humans
;
Inflammation
;
Oral Ulcer
;
Rectal Fistula
;
Recurrence
;
Ulcer*
;
Young Adult