1.A Case Report of Amiodarone-induced Multiple Toxicity after a Long Course of a Low Dose Therapy.
Dong Hwan RYU ; Jae Hyeok PARK ; Hwan Sik HWANG ; Hoon Ki PARK ; Seok Chol JEON
Journal of the Korean Academy of Family Medicine 2007;28(6):460-465
Amiodarone is a potent antiarrhythmic agent that is used to treat ventricular arrhythmias and atrial fibrillation. But it has a wide range of adverse effects, including pulmonary toxicity, thyroid dysfunction, liver toxicity, gastrointestinal events, corneal deposits, peripheral neuropathy and so on. Patients treated with amiodarone should be followed regularly to assess ongoing need for amiodarone, efficacy of the drug, appropriateness of dosage, adverse effects, and potential drug interactions. We experienced a case of severe weight loss due to amiodarone-induced multiple toxicity after a long course of a low dose therapy. So we report this unusual case with literature review.
Amiodarone
;
Anorexia
;
Arrhythmias, Cardiac
;
Atrial Fibrillation
;
Drug Interactions
;
Humans
;
Liver Diseases
;
Peripheral Nervous System Diseases
;
Thyroid Gland
;
Thyrotoxicosis
;
Weight Loss
2.Pattern of Extraocular Muscle Involvements in Miller Fisher Syndrome
Won Yeol RYU ; Yoo Hwan KIM ; Byeol A YOON ; Hwan Tae PARK ; Jong Seok BAE ; Jong Kuk KIM
Journal of Clinical Neurology 2019;15(3):308-312
BACKGROUND AND PURPOSE: The most-common initial manifestation of Miller Fisher syndrome (MFS) is diplopia due to acute ophthalmoplegia. However, few studies have focused on ocular motility findings in MFS. This study aimed to determine the pattern of extraocular muscle (EOM) paresis in MFS patients. METHODS: We consecutively recruited MFS patients who presented with ophthalmoplegia between 2010 and 2015. The involved EOMs and the strabismus pattern in the primary position were analyzed. Antecedent infections, other involved cranial nerves, and laboratory findings were also reviewed. We compared the characteristics of the patients according to the severity of ophthalmoplegia between complete ophthalmoplegia (CO) and incomplete ophthalmoplegia (IO). RESULTS: Twenty-five patients (15 males and 10 females) with bilateral ophthalmoplegia were included in the study. The most-involved and last-to-recover EOM was the lateral rectus muscle. CO and IO were observed in 11 and 14 patients, respectively. The patients were aged 59.0±18.4 years (mean±SD) in the CO group and 24.9±7.4 years in the IO group (p<0.01), and comprised 63.6% and 21.4% females, respectively (p=0.049). Elevated cerebrospinal fluid protein was identified in 60.0% of patients with CO and 7.7% of patients with IO (p=0.019) for a mean follow-up time from the initial symptom onset of 3.7 days. CONCLUSIONS: The lateral rectus muscle is the most-involved and last-to-recover EOM in ophthalmoplegia. The CO patients were much older and were more likely to be female and have an elevation of cerebrospinal fluid protein than the IO patients.
Cerebrospinal Fluid
;
Cranial Nerves
;
Diplopia
;
Female
;
Follow-Up Studies
;
Guillain-Barre Syndrome
;
Humans
;
Jupiter
;
Male
;
Miller Fisher Syndrome
;
Ophthalmoplegia
;
Paresis
;
Strabismus
3.Effects of Tianeptine on The Activity of Glutamate Transporter EAAT3 Expressed in Xenopus Oocytes
Bon-Wook KOO ; Hyo-Seok NA ; Jung-Hee RYU ; Jung-Seok CHOI ; Sang-Hwan DO ; Zhiyi ZUO
Journal of the Korean Society of Biological Therapies in Psychiatry 2020;26(3):243-250
Objectives:
: Tianeptine is an antidepressant that has drawn attention recently. Unlike traditional monoaminergic antidepressants, tianeptine is known to affect glutamate neurotransmission like ketamine. However, there has been paucity of studies investigating the role of tianeptine on glutamate transporters, especially excitatory amino acid transporter type 3 (EAAT3).
Methods:
: After expression of EAAT3 by intracellular injection of EAAT3 mRNA, we investigated the effect of tianeptine on the activity of EAAT3, by measuring membrane current in response to L-glutamate administration using Xenopus oocyte expression system and two-electrode voltage clamps..
Results:
: Tianeptine (1mM for 72h) significantly reduced Vmax (6.9±0.6 vs. 4.8±0.3mC, n=14-22, p<0.05) without changing Km (27.0±7.6 vs. 23.3±4.9mM, n=14-22, p=0.72).
Conclusion
: When tianeptine was exposed for 72h, it decreased the activity of EAAT3 in a concentration-dependent manner (1-100mM). Our results suggest that tianeptine decreases EAAT3 activity by reducing the available number or turnover rate of EAAT3.
4.Effect of IV Saline or Glucose Solution Load on the Clearance of Alcohol in Acute Alcohol Intoxication.
Won Yul KIM ; Sang Lae LEE ; Ji Young AHN ; Seung Hun AHN ; Seok Yong RYU ; Kyung Hwan KIM ; Hong Yong KIM
Journal of the Korean Society of Emergency Medicine 2000;11(3):352-361
BACKGROUND: In emergency departments, there are many drunken patients with various emergency medical situations. In these patients, evaluation and management of the medical problems are delayed from time to time because of the uncooperative nature of the patients and because of consciousness and sensory changes. A precise evaluation can only be obtained when the patients become sober. For this purpose, most clinicians start IV fluid loading. This study was carried out to evaluate the effect of IV fluid(normal saline and glucose solution) on the rate of ethanol clearance in such patients. METHODS: Ten volunteers(healthy males in their twenties and with a Michigan alcohol screening test below 4) were enrolled in this study. Alcohol intake was restricted to at least 48 hours before the test and food intake to at least 4 hours. For the test, A predetermined dose of ethanol(1gm/kg) was given to the volunteers. Each volunteer was tested on three consecutive times with 3 or more days interval for alcohol wash out period. On the 1st day, the volunteers received ethanol only per os. On the second day, they received ethanol and a liter of IV normal saline. On the third day, they received ethanol and a liter of IV 10% dextrose solution. Each day, blood was drawn from the antecubital vein to measure the ethanol level at the time of ethanol ingestion and at 0.5, 1, 1.5, 2, 3, 4, 5 and 6 hours after ingestion. The repeated measure ANOVA test was used for the statistical analysis. RESULTS: The difference in the blood ethanol level between the 3 test was F=1.7, p=0.184, and the difference corrected by the time factor was F=0.32, and p=0.985. CONCLUSION: There was no significant difference in the blood ethanol level between the tests. In conclusion, the IV normal saline or glucose solution does not accelerate ethanol clearance in suffering from acute alcohol intoxication.
Consciousness
;
Eating
;
Emergencies
;
Emergency Service, Hospital
;
Ethanol
;
Glucose*
;
Humans
;
Male
;
Mass Screening
;
Michigan
;
Time Factors
;
Veins
;
Volunteers
5.Factors Affecting on Treatment of Hyponatremia in Hyponatremic Patients.
Seok Woo KANG ; Seong Kyu YANG ; Jun Ho RYU ; Sang Woong HAN ; Kyung Hwan MIN ; Ho Jung KIM
Korean Journal of Nephrology 2000;19(3):421-428
Hyponatremia, well known as a serious medical condition, is the most frequent electrolyte disorder in clinical medicine. The aim of this study is to bring to readers affecting factors in hyponatremia treatment and to suggest effective treatment guideline. We studied general characteristics, associated serum potassium change, relationship of sodium concentration in urine, and affecting factors on serum sodium correction in 76 hyponatremic patients who had admitted Hanyang University Kuri Hospital. These 73 hyponatremic patients were divided into 10 groups according to cause and treatment by retrospective analysis(1 group : G-I origin, 2 group : CRF, 3 group : CHF, 4 group: LC, 5 group : adrenal origin, 6 group : diuretics use, 7 group : CHF with di- uretics use, 8 group : LC with diuretics use, 9 group : polydypsia, 10 group : SIADH). Serum sodium were 124.2+/-6.9mEq/L in initial diagnosis, 125.6 +/-7.7mEq/L after 48 hour, and 129.8+/-6.3mEq/L in final evaluation. Among these hyponatremic patients, thirty patients' (41.1%) sodium correction rate were below 0.5mEq/L/hr during initial 48 hour and fifteen patients(20.5%) were corrected above 135mEq/l in serum sodium Initial serum potassium was average 4,07mEq/L, and 15 patients in 73 hyponatremic patients were hypokalemic feature. Eight patients of 15 hypokalemic patients were corrected to normal potassium level and in addition, four patients of 8 corrected patients were corrected to normal sodium level above 135mEq/L. The disease frequency were highest in GI origin (31.5%), followed by SIADH(20.5%) and LC(12.3%). In our study, hyponatremia correction was not related to patient sex, age, and initial serum sodium concentration. In conclusion, Hyponatremia prognosis was not related to initial serum sodium concentration and corection rate, but related to treatment of underlying disease. And hypokalemia acompanied by hyponetremia was corrected after correction of hyponatremia.
Clinical Medicine
;
Diagnosis
;
Diuretics
;
Humans
;
Hypokalemia
;
Hyponatremia*
;
Potassium
;
Prognosis
;
Retrospective Studies
;
Sodium
6.The Pathophysiologic Difference Between Idiopathic and Self-induced Edema on Chronic Furosemide Abuse.
Sang Woong HAN ; Kyoung Hwan MIN ; Seok Woo KANG ; Jun Ho RYU ; Jung Don MUN ; Ho Jung KIM
Korean Journal of Nephrology 2000;19(1):123-131
Patients suffering from idiopathic or self-induced edema are uniformly characterized by chronic use of furosemide, which leads to vicious cycle of edema. Among chronic furosemide users who don't have any other specific edema forming diseases, 9 patients from the outpatient clinic(OC) and 6 patients examined at the emergency room(ER) used it mainly for weight reduction and for cyclical edema, respectively. All of the ER group patients were presented with severe hypokalemia(2.04+/-0.2mEq/L; range 1.3 to 2.7 mEq/L) and alkalosis(748+/-0.01; range 7.44 to 7.51) but none from the OC group showed such results. Other baseline parameters including Plasma renin activity(PRA) and aldosterone level on recumbency, and FEn(2)were similar in both groups. In contrast, daily working hours(6.1+/-0.5 vs 10+/-0.6hr, p<0.01), average body weight gain between AM and PM(0.4+/-0.1 vs 0.9+/-0.lkg, p<0.01), peak weight gain interval(9+/-0.8 vs 5+/-0.1day, p<0.05), PRA(7.6+/-1.5 vs 23.5+/-7.2ng/ml/h, p<0.05) and aldosterone level(22.1+/-4.2 vs 64.8+/-10.4 ng/dl, p<0.01) on ambulation, and FEk. on normokalemia(ll+/-2A vs 36+/-7.7%, p<0.01) were statistically different between the two groups. In comparison to the OC group, both the amout of urine(617+/-39 vs 358+/-26ml, p<0.01) and the percent change of PRA(-14+/-4 vs -3+/-2%, p<0.05) and al-dosterone level(-17+/-5 vs -4+/-3%, p<0.05) after saline loading(lL over 1hr, IV) following ambulation were smaller in the Elt group. Moat of the ER group patients(5/6) required aldosterone antagonist (spironolactone) added to K+ supplement, but all of the OC group patients were managed to maintain an edema-free status with conservative treatment. In conclusion, patients with idiopathic edema seem to have more fluid transudation out of intravascular space during orthostasis with a prominent degree of deranged renin-aldosterone axis and K+ metabolism than those with self-induced edema.
Aldosterone
;
Axis, Cervical Vertebra
;
Body Weight
;
Dizziness
;
Edema*
;
Emergencies
;
Furosemide*
;
Humans
;
Metabolism
;
Outpatients
;
Plasma
;
Renin
;
Walking
;
Weight Gain
;
Weight Loss
7.Plasma G-CSF and GM-CSF Concentrations and Expression of their Receptors on the Granulocyte in Children with Leukocytosis.
Won Seok CHOI ; Kyung Hwan RYU ; You Jeong KIM ; So Young KIM ; Hyun Hee KIM ; Wonbae LEE
Journal of the Korean Pediatric Society 2003;46(3):271-276
PURPOSE: Granulocyte-colony stimulating factor(G-CSF) and granulocyte macrophage-colony stimulating factor(GM-CSF) are principal cytokines in granulopoiesis and their physiologic effects are mediated through binding to specific cell surface receptors. Although it is known that the level of serum G-CSF and GM-CSF, and presentation of the receptors are increased in infectious diseases, there have been no studies to find the correlation between the granulopoiesis and leukocytosis. This study was designed to measure G-CSF and GM-CSF in leukocytosis and in control and to demonstrate the possible pathogenesis of granulopoiesis in leukocytosis using quantitative analysis of G- CSF, GM-CSF and their CSFr. METHODS: The plasma levels of G-CSF, GM-CSF of 13 children without leukocytosis and 14 children with leukocytosis were measured. Counts of cell surface G-CSFr and GM-CSFr were measured by combining anti G-CSFr and anti GM-CSFr monoclonal antibodies to their respective receptors by using quantitative flow cytometric assay. RESULTS: There was no significant difference betweeen the plasma concentration of G-CSF and GM-CSF in acute leukocytosis and in the control group. However, levels of G-CSFr in acute leukocytosis decreased significantly compared to the control(P=0.012) and the levels of GM-CSFr in both groups revealed no significant difference. CONCLUSION: Increase in the number of leukocyte in leukocytosis was mediated by increasing the number of neutrophil, and increased plasma concentration of G-CSF may be the cause of neutrophilia. But GM-CSF did not have any influence on leukocytosis.
Antibodies, Monoclonal
;
Child*
;
Communicable Diseases
;
Cytokines
;
Granulocyte Colony-Stimulating Factor*
;
Granulocyte-Macrophage Colony-Stimulating Factor*
;
Granulocytes*
;
Humans
;
Leukocytes
;
Leukocytosis*
;
Neutrophils
;
Plasma*
;
Receptors, Cell Surface
;
Receptors, Granulocyte Colony-Stimulating Factor
;
Receptors, Granulocyte-Macrophage Colony-Stimulating Factor
8.Retroperitoneal multilocular bronchogenic cyst adjacent to adrenal gland.
Seok Woo YANG ; John A LINTON ; Sok Jong RYU ; Dong Hwan SHIN ; Cheong Soo PARK
Yonsei Medical Journal 1999;40(5):523-526
Bronchogenic cysts are generally found in the mediastinum, particularly posterior to the carina, but they rarely occur in such unusual sites as the skin, subcutaneous tissue, pericardium, and even the retroperitoneum. A 30-year-old Korean man underwent surgery to remove a cystic adrenal mass incidentally discovered during routine physical checkup. At surgery, it proved to be a multilocular cyst located in the retroperitoneum adjacent to the left adrenal gland. Microscopically, the cyst was lined by respiratory epithelium over connective tissue with submucous glands, cartilage and smooth muscle, thereby histologically confirming bronchogenic cyst. This is the first reported case of retroperitoneal bronchogenic cyst in an adult without other congenital anomalies in Korea.
Adrenal Glands/pathology*
;
Adult
;
Bronchogenic Cyst/pathology*
;
Bronchogenic Cyst/diagnosis
;
Case Report
;
Diagnosis, Differential
;
Human
;
Male
;
Retroperitoneal Space
9.Surgical Outcomes and Safety of Robotic Sacrocolpopexy in Women With Apical Pelvic Organ Prolapse.
Hyun Hwan SUNG ; Kwang Jin KO ; Yoon Seok SUH ; Gyu Ha RYU ; Kyu Sung LEE
International Neurourology Journal 2017;21(1):68-74
PURPOSE: This study aimed to investigate the surgical outcomes and safety of robotic sacrocolpopexy (RSC) in patients with uterine/vaginal vault prolapse. METHODS: Between January 2009 and June 2015, 16 women with apical prolapse underwent RSC. Pelvic organ prolapse quantification (POP-Q) examination was performed, and treatment success was defined as the presence of grade 0 or I apical prolapse upon POP-Q examination at the final follow-up. Pelvic floor distress inventory-short form 20 (PFDI-SF 20) was administered at every follow-up. A treatment satisfaction questionnaire was administered by telephone to evaluate patient satisfaction with the operation. RESULTS: Median age was 65 years (interquartile range [IQR], 56–68 years), and follow-up duration was 25.3 months (IQR, 5.4–34.0 months). Thirteen women (81.3%) had ≥grade III apical prolapse. Operation time was 251 minutes (IQR, 236–288 minutes), and blood loss was 75 mL (IQR, 50–150 mL). Median hospital stay was 4 days (IQR, 3–5 days). At the final follow-up, treatment success was reported in all patients, who presented grade 0 (n=8, 57.1%) and grade I (n=6, 42.9%) apical prolapse. Dramatic improvements in PFDI-SF 20 scores were noted after RSC (from 39 to 4; P=0.001). Most patients (12 of 13) were satisfied with RSC. An intraoperative complication (sacral venous plexus injury) was reported in 1 patient, and there was no conversion to open surgery. Mesh erosion was not reported. CONCLUSIONS: RSC is an efficient and safe surgical option for apical prolapse repair. Most patients were satisfied with RSC. Thus, RSC might be one of the best treatment options for apical prolapse in women.
Conversion to Open Surgery
;
Female
;
Follow-Up Studies
;
Humans
;
Intraoperative Complications
;
Length of Stay
;
Patient Satisfaction
;
Pelvic Floor
;
Pelvic Organ Prolapse*
;
Prolapse
;
Robotic Surgical Procedures
;
Telephone
;
Uterine Prolapse
10.Changes of Motor Deactivation Regions in Patients with Intracranial Lesions.
Seung Hwan LEE ; Jun Seok KOH ; Chang Woo RYU ; Geon Ho JAHNG
Journal of Korean Neurosurgical Society 2013;54(6):453-460
OBJECTIVE: There is a rich literature confirming the default mode network found compatible with task-induced deactivation regions in normal subjects, but few investigations of alterations of the motor deactivation in patients with intracranial lesions. Therefore, we hypothesized that an intracranial lesion results in abnormal changes in a task-induced deactivation region compared with default mode network, and these changes are associated with specific attributes of allocated regions. METHODS: Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) during a motor task were obtained from 27 intracranial lesion patients (mean age, 57.3 years; range 15-78 years) who had various kinds of brain tumors. The BOLD fMRI data for each patient were evaluated to obtain activation or deactivation regions. The distinctive deactivation regions from intracranial lesion patients were evaluated by comparing to the literature reports. RESULTS: There were additive deactivated regions according to intracranial lesions: fusiform gyrus in cavernous hemangioma; lateral occipital gyrus in meningioma; crus cerebri in hemangiopericytoma; globus pallidus, lateral occipital gyrus, caudate nucleus, fusiform gyrus, lingual gyrus, claustrum, substantia nigra, subthalamic nucleus in GBM; fusiform gyrus in metastatic brain tumors. CONCLUSION: There is increasing interest in human brain function using fMRI. The authors report the brain function migrations and changes that occur in patients with intracranial lesions.
Basal Ganglia
;
Brain
;
Brain Neoplasms
;
Caudate Nucleus
;
Globus Pallidus
;
Hemangioma, Cavernous
;
Hemangiopericytoma
;
Humans
;
Magnetic Resonance Imaging
;
Meningioma
;
Oxygen
;
Substantia Nigra
;
Subthalamic Nucleus