1.Clinical Features of Cataract Extraction with Negative-Power Intraocular Lens Implantation in High Myopia.
Min Kyo KIM ; Woo Beom SHIN ; Hyun Kyo JEONG ; Jung Bum CHOI
Journal of the Korean Ophthalmological Society 2016;57(6):898-904
PURPOSE: To evaluate the clinical features of high myopic eyes with cataracts implanted with negative power intraocular lenses (IOLs) at the time of cataract surgery. METHODS: A retrospective chart review was conducted of 18 eyes of 14 patients who underwent cataract surgery with negative power IOLs and 10 eyes in 9 patients with low power IOLs. We investigated axial length, IOL power, preoperative and postoperative best-corrected visual acuity (BCVA) and preoperative and postoperative spherical equivalent (SE) refractive errors. RESULTS: Mean BCVA showed significant improvement in both groups. We measured postoperative SE refraction and the difference between the mean intended and the mean achieved SE refractive errors in the negative power group (17 eyes) was +1.59 ± 1.34 D and +0.31 ± 0.50 D in the low power group. CONCLUSIONS: BCVA was significantly improved in the majority of eyes, although they had myopic macular degeneration or posterior staphyloma. However, the mean achieved postoperative SE refraction was more hyperopic than the predicted postoperative SE error. Additionally, hyperopic refractive error was greater in the negative power group than the low power group. Therefore, we recommend that postoperative hyperopic refractive error should be considered when performing cataract surgery in high myopic patients.
Cataract Extraction*
;
Cataract*
;
Humans
;
Lens Implantation, Intraocular*
;
Lenses, Intraocular*
;
Macular Degeneration
;
Myopia*
;
Refractive Errors
;
Retrospective Studies
;
Visual Acuity
2.Ovarian Sertoli-Leydig Cell Tumors with Heterologous Gastrointestinal Type Epithelium or with Striated Skeletal Muscle: report of two cases.
Ki Ouk MIN ; Eun Joo SEO ; Young Shin KIM ; Kyo Young LEE ; Sang In SHIM
Korean Journal of Pathology 1996;30(1):50-56
Sertoli-Leydig cell tumors of the ovary are rare, accounting for no more than 0.5% of all ovarian neoplasms. These tumors occur predominantly in women 10 to 30 years of age. Heterologous elements are found in over 20% of the moderately and poorly differentiated Sertoli- Leydig cell tumors. The most common element is gastrointestinal mucin-secreting epithelium, found in approximately 20% of all cases. Approximately 4% of Sertoli-Leydig cell tumors contain immature skeletal muscle and/or cartilaginous elements. The origin of these neoplasms is regarded as neometaplasia of the mesodermal neoplastic element. While the degree of differentiation of Sertoli-Leydig cell tumors is probably of greater importance in determining prognosis than the presence of heterologous components, recent evidence does point to an unfavorable effect on clinical outcome when heterologous mesenchymal components such as cartilage and striated muscle are present. We experienced two cases of ovarian heterologous Sertoli-Leydig cell tumors with gastrointestinal type epithelium and striated skeletal muscle in 20 and 21 year-old females, respectively. One case involved a patient who had complained of amenorrhea for 3 years while the other case involved a patient who had complained of left lower abdominal tenderness and amenorrhea for one and one half years. It was determined by ultrasonography of the pelvis that the two patients suffered from right and left ovarian masses. Both patients underwent adnexectomy. These tumors were large with partly solid and partly cystic areas. Based on light microscopic examination one case was classified as an intermediate Sertoli-Leydig cell tumor with heterologous gastrointestinal type epithelium, while the other case was classified as a poorly differentiated Sertoli-Leydig cell tumor with heterologous striated skeletal muscle.
Female
;
Humans
3.Comparison of Central Corneal Thickness Measured by Swept-source Optical Coherence Tomography and Ultrasound Pachymetry.
Woo Beom SHIN ; Hyun Kyo JEONG ; Min Kyo KIM ; Hong Seok KIM ; Jun Mo LEE ; Chan Yun KIM ; Ji Hyun KIM
Journal of the Korean Ophthalmological Society 2017;58(3):276-282
PURPOSE: To analyze and compare ultrasound pachymetry (USP) with a more recently adopted device, the intra ocular lens (IOL) master 700, which are both used to measure central corneal thickness. METHODS: The central corneal thickness was measured in 24 eyes of 12 glaucoma patients and in 83 eyes of 42 normal patients. First, the IOL master 700 was used to measure the central corneal thickness, followed by measurements taken using USP later. The results were analyzed using a paired t-test. We analyzed the agreement and the correlations between the two test devices by using Bland-Altman plots and the Pearson correlation test. To evaluate the reproducibility, measurements with the IOL master 700 were taken twice for a few normal patients within a small time interval. RESULTS: Via the IOL master 700, the thickness of the central cornea showed a high reproducibility and repeatability, demonstrating 2.7 ± 1.7 µm for the test-retest variability, 6.78% for the coefficient of variation, and 0.997 for the intraclass correlation value. The mean measurements using USP and the IOL master 700 are 554.4 ± 37.4 µm and 551.1 ± 37.1 µm, respectively, showing that the IOL master 700 measured significantly smaller values than USP with a p-value < 0.001. The deviations between the two methods are scattered throughout the 95% confidence interval. According to the Pearson correlation test, the measured values of the two test devices were found to have a highly positive correlation (r = 0.977, p < 0.0001). CONCLUSIONS: This study demonstrated that the central corneal thickness (CCT) measured via the IOL master was significantly thinner than that of USP, and the two test devices had a high correlation and good agreement. The CCT value measured via the IOL master 700 also exhibited high reproducibility.
Cornea
;
Glaucoma
;
Humans
;
Tomography, Optical Coherence*
;
Ultrasonography*
4.Pigmented Choroidal Metastases Masquerading as Choroidal Melanoma.
Woo Beom SHIN ; Min Kyo KIM ; Ji Ye KIM ; Sung Chul LEE ; Hye Sun KIM
Journal of the Korean Ophthalmological Society 2015;56(9):1464-1466
PURPOSE: To report the first case of pigmented choroidal metastases without enucleation diagnosed with fine-needle aspiration biopsy. CASE SUMMARY: A 47-year-old male was referred to our clinic with a suspected diagnosis of choroidal melanoma in his left eye. Positron emission tomography-computer tomography used to evaluate systemic metastases revealed lung cancer. Pathology of the detected lung mass was primary lung neuroendocrine tumor. To differentiate choroidal metastasis and primary choroidal melanoma, we performed a fine-needle aspiration biopsy for choroidal tumors. The cytology showed results favoring metastatic atypical carcinoid and the patient was started on systemic chemotherapy. CONCLUSIONS: All pigmented choroidal tumors are not choroidal melanomas and choroidal metastases may be pigmented. The present case suggests that proper systemic evaluation and biopsy for suspected choroidal tumor could be helpful in diagnosis.
Biopsy
;
Biopsy, Fine-Needle
;
Carcinoid Tumor
;
Choroid*
;
Diagnosis
;
Drug Therapy
;
Electrons
;
Humans
;
Lung
;
Lung Neoplasms
;
Male
;
Melanoma*
;
Middle Aged
;
Neoplasm Metastasis*
;
Neuroendocrine Tumors
;
Pathology
5.Effectiveness of Positron Emission Tomography in the Pre-operative Staging of Gastric Cancer.
Shin Young PARK ; Jung Min BAE ; Se Won KIM ; Sang Woon KIM ; Sun Kyo SONG
Journal of the Korean Gastric Cancer Association 2009;9(3):110-116
PURPOSE: The aim of this study was to examine the usefulness of positron emission tomography (PET)-computed tomography (CT) in the pre-operative staging of gastric cancer. MATERIALS AND METHODS: Between February 2006 and August 2008, PET-CT and CT were performed on 70 patients diagnosed with gastric cancer by gastrofiberscopic biopsy. The sensitivities, specificities, positive predictive value (PPV), and negative predictive value (NPV) of PET-CT and CT imaging for the detection of gastric cancer TNM staging were compared. RESULTS: The detection rates for the primary tumor were as follows: PET-CT, 81.4% (57/70); and CT, 42.9% (30/70). For both early gastric cancer (EGC) and advanced gastric cancer (AGC), PET-CT was more accurate than CT in detecting the lesions. As the size of the tumor exceeded 3 cm, the detection rate increased. The sensitivities, specificities, PPV, and NPV of PET-CT for lymph node staging were 55.6%, 81%, 86.2%, and 45.9%, while the sensitivities, specificities, PPV, and NPV of CT were 40.0%, 85.7%, 85.7% and 40%, respectively. One case of multiple liver metastasis and two cases of dual primary cancer (rectal and pancreatic cancers) were detected by PET-CT. PET-CT also had a higher detection rate for all histologic types of primary tumors. PET-CT was more accurate than CT in detecting primary gastric cancer lesions. The detection of nodal metastasis by PET-CT was similar to CT; small-sized tumors or EGC detection rates were not high. However, PET-CT provided additional information to detect distant metastases and dual primary cancers and reduced unnecessary laparotomies to detect peritoneal seeding or carcinomatosis. CONCLUSION: It would be useful to make a pre-operative diagnosis of gastric cancer and determine treatment if PET-CT were added to other routine pre-operative studies.
Biopsy
;
Electrons
;
Humans
;
Laparotomy
;
Liver
;
Lymph Nodes
;
Neoplasm Metastasis
;
Neoplasm Staging
;
Positron-Emission Tomography
;
Seeds
;
Stomach Neoplasms
6.Comparison of the Clinical Manifestations between Acute Vogt-Koyanagi-Harada Disease and Acute Bilateral Central Serous Chorioretinopathy.
Woo Beom SHIN ; Min Kyo KIM ; Christopher Seungkyu LEE ; Sung Chul LEE ; Hyesun KIM
Korean Journal of Ophthalmology 2015;29(6):389-395
PURPOSE: To compare clinical, angiographic, and optical coherence tomographic characteristics between eyes with acute Vogt-Koyanagi-Harada (VKH) disease and eyes with acute bilateral central serous chorioretinopathy (CSC), and to demonstrate distinguishing features between the two diseases in confusing cases. METHODS: The medical records of 35 patients with VKH disease and 25 patients with bilateral CSC were retrospectively reviewed. Characteristics according to slit-lamp biomicroscopy, ophthalmoscopy, fundus photography, fluorescein angiography, indocyanine green angiography, and spectral-domain optical coherence tomography were compared between the two diseases. RESULTS: Five of 35 patients (10 of 70 eyes, 14.3%) with VKH disease were initially misdiagnosed as CSC patients, and six of 25 patients (12 of 50 eyes, 24%) with bilateral CSC were initially misdiagnosed as patients with VKH disease. Pigment epithelial detachment in CSC and optic disc hyperemia in VKH disease show the highest positive predictive values of 100% for each disease. CONCLUSIONS: Optic disc hyperemia in VKH disease and pigment epithelial detachment in bilateral CSC are the most specific clinical manifestations of each disease at initial patient presentation.
Acute Disease
;
Adult
;
Aged
;
Aged, 80 and over
;
Central Serous Chorioretinopathy/*diagnostic imaging
;
Female
;
Fluorescein Angiography
;
Humans
;
Hyperemia/diagnosis
;
Indocyanine Green/administration & dosage
;
Male
;
Middle Aged
;
Multimodal Imaging
;
Ophthalmoscopy
;
Optic Disk/blood supply
;
Photography
;
Retinal Detachment/diagnosis
;
Retinal Pigment Epithelium/pathology
;
Retrospective Studies
;
Slit Lamp Microscopy
;
Tomography, Optical Coherence
;
Uveomeningoencephalitic Syndrome/*diagnostic imaging
;
Young Adult
7.The Effects of the Alkalinization of Intracuff Lidocaine after Nitrous Oxide Anesthesia.
Joong Chun SHIN ; Kyo Sang KIM ; Yu Jung KIM ; Won Jin CHOI ; Min Seok KOO
Korean Journal of Anesthesiology 2008;54(4):384-388
BACKGROUND: Diffusion of nitrous oxide into the cuff of the endotracheal tube (ETT) results in an increase in cuff pressure. This method was used to test whether tracheal morbidity is related to fill the cuff of the endotracheal tube with alkalinized lidocaine instead of air or lidocaine only. METHODS: Adult patients scheduled for total thyroidectomy surgery were randomly enrolled (n = 30 for each group).The ETT cuff was filled with air 6 ml (Group C), with 2% lidocaine 6 ml (Group L), or with alkalinized lidocaine (4 ml or 2 ml of 2% lidocaine) using 2 ml (Group A) or 4 ml (Group B) of 8.4% NaHCO3.After tracheal extubation, sore throat was evaluated by visual analog scale as the main end-point of the study. RESULTS: Compared with group air or lidocaine only, the alkalinized-lidocaine groups had a significant reduction in sore throat during the 24-h postoperative period (P < 0.001).The difference was not significant between the two alkalinized lidocaine groups. Cough before tracheal extubation, nausea, postoperative vomiting, dysphonia, and hoarseness after extubation were decreased in the alkalinized-lidocaine groups compared with Group C and L, and a better tolerance was recorded with alkalinized-lidocaine groups compared with Group C and L. CONCLUSIONS: We concluded that use of intracuff alkalinized lidocaine is an effective adjunct to endotracheal intubation instead of air or lidocaine only during nitrous oxide anesthesia, however there were no differences between two alkalinizations.
Adult
;
Airway Extubation
;
Anesthesia
;
Cough
;
Diffusion
;
Dysphonia
;
Hoarseness
;
Humans
;
Intubation, Intratracheal
;
Lidocaine
;
Nitrous Oxide
;
Pharyngitis
;
Postoperative Nausea and Vomiting
;
Postoperative Period
;
Sodium Bicarbonate
;
Thyroidectomy
;
Vomiting
8.Effects of Rhodiola Sachalinensis on Nitric Oxide Synthesis by Macrophages, Hepatocytes, and Vascular Smooth Muscle Cells.
Hwa Kyung LEE ; Min Kyo SHIN ; Hyun Ock BAE ; Won Gil SEO ; Gi Su OH ; Byoung Sun AHN ; Hun Taeg CHUNG
Korean Journal of Immunology 2000;22(4):229-234
No abstract available.
Hepatocytes*
;
Macrophages*
;
Muscle, Smooth, Vascular*
;
Nitric Oxide*
;
Rhodiola*
10.Arginase Inhibition by Ethylacetate Extract of Caesalpinia sappan Lignum Contributes to Activation of Endothelial Nitric Oxide Synthase.
Woosung SHIN ; To Dao CUONG ; Jeong Hyung LEE ; Byungsun MIN ; Byeong Hwa JEON ; Hyun Kyo LIM ; Sungwoo RYOO
The Korean Journal of Physiology and Pharmacology 2011;15(3):123-128
Caesalpinia sappan (C. sappan) is a medicinal plant used for promoting blood circulation and removing stasis. During a screening procedure on medicinal plants, the ethylacetate extract of the lignum of C. sappan (CLE) showed inhibitory activity on arginase which has recently been reported as a novel therapeutic target for the treatment of cardiovascular diseases such as atherosclerosis. CLE inhibited arginase II activity prepared from kidney lysate in a dose-dependent manner. In HUVECs, inhibition of arginase activity by CLE reciprocally increased NOx production through enhancement of eNOS dimer stability without any significant changes in the protein levels of eNOS and arginase II expression. Furthermore, CLE-dependent arginase inhibition resulted in increase of NO generation and decrease of superoxide production on endothelium of isolated mice aorta. These results indicate that CLE augments NO production on endothelium through inhibition of arginase activity, and may imply their usefulness for the treatment of cardiovascular diseases associated with endothelial dysfunction.
Animals
;
Aorta
;
Arginase
;
Atherosclerosis
;
Blood Circulation
;
Caesalpinia
;
Cardiovascular Diseases
;
Endothelium
;
Kidney
;
Mass Screening
;
Mice
;
Nitric Oxide
;
Nitric Oxide Synthase Type III
;
Plants, Medicinal
;
Superoxides