1.Outcomes of 6 Hour Part-time Occlusion Treatment Combined with Near Activities for Unilateral Amblyopia.
Kyoung Soo PARK ; Yoon Hee CHANG ; Kyung Doo NA ; Samin HONG ; Sueng Han HAN
Korean Journal of Ophthalmology 2008;22(1):26-31
PURPOSE: To evaluate the outcome of the part-time occlusion therapy with near activities in monocular amblyopic patients according to gender, age, severity of amblyopia, and the cause of amblyopia. METHODS: Fifty eight patients who were prescribed part-time occlusion therapy with near activity from July 1998 to October 2004, were included in this retrospective study. All patients were divided into groups by gender, age, severity of amblyopia, and the cause of amblyopia. Main outcome measures were best corrected visual acuity, line improvement, and success rate. RESULTS: At the end of patch therapy, visual acuity improved from baseline by an average of 3.2+/-2.5 lines (0.33+/-0.26 log MAR), and follow-up period was 19.71+/-14.61 months (1.62+/-1.20 years). At the last follow-up, visual acuity improved from baseline by an average of 3.7+/-2.4 lines (0.38+/-0.26 log MAR), and follow-up period was 37.41+/-25.83 months (3.08+/-2.12 years). The success rate was 86% (50 patients) at the end of patch therapy. In 44 patients out of 50 patients (88%), the visual acuity was maintained. While 43 patients out of 47 patients who were less than 7 years old (91%) achieved success, 7 patients out of 11 patients 7 years or older (64%) achieved success (p=0.035). CONCLUSIONS: Six-hour part-time occlusion treatment combined with near activities appears to be favorable in treating 58 children during follow-up of mean 3.08 years. The significant factor was the age at initial treatment.
*Activities of Daily Living
;
Amblyopia/physiopathology/*therapy
;
Child, Preschool
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Retrospective Studies
;
*Sensory Deprivation
;
Time Factors
;
Treatment Outcome
;
Visual Acuity/physiology
2.Outcomes of 6 Hour Part-time Occlusion Treatment Combined with Near Activities for Unilateral Amblyopia.
Kyoung Soo PARK ; Yoon Hee CHANG ; Kyung Doo NA ; Samin HONG ; Sueng Han HAN
Korean Journal of Ophthalmology 2008;22(1):26-31
PURPOSE: To evaluate the outcome of the part-time occlusion therapy with near activities in monocular amblyopic patients according to gender, age, severity of amblyopia, and the cause of amblyopia. METHODS: Fifty eight patients who were prescribed part-time occlusion therapy with near activity from July 1998 to October 2004, were included in this retrospective study. All patients were divided into groups by gender, age, severity of amblyopia, and the cause of amblyopia. Main outcome measures were best corrected visual acuity, line improvement, and success rate. RESULTS: At the end of patch therapy, visual acuity improved from baseline by an average of 3.2+/-2.5 lines (0.33+/-0.26 log MAR), and follow-up period was 19.71+/-14.61 months (1.62+/-1.20 years). At the last follow-up, visual acuity improved from baseline by an average of 3.7+/-2.4 lines (0.38+/-0.26 log MAR), and follow-up period was 37.41+/-25.83 months (3.08+/-2.12 years). The success rate was 86% (50 patients) at the end of patch therapy. In 44 patients out of 50 patients (88%), the visual acuity was maintained. While 43 patients out of 47 patients who were less than 7 years old (91%) achieved success, 7 patients out of 11 patients 7 years or older (64%) achieved success (p=0.035). CONCLUSIONS: Six-hour part-time occlusion treatment combined with near activities appears to be favorable in treating 58 children during follow-up of mean 3.08 years. The significant factor was the age at initial treatment.
*Activities of Daily Living
;
Amblyopia/physiopathology/*therapy
;
Child, Preschool
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Retrospective Studies
;
*Sensory Deprivation
;
Time Factors
;
Treatment Outcome
;
Visual Acuity/physiology
3.Ischemic Preconditioning and the Role of Protein Kinase C in Cultured Retinal Ganglion Cell Line.
Kyoung Doo NA ; Sung Yong KANG ; Gong Je SEONG ; Samin HONG ; Mi Jin CHUN ; Chan Yun KIM
Journal of the Korean Ophthalmological Society 2008;49(6):979-986
PURPOSE: To investigate the cellular protective effects of hypoxic preconditioning against oxidative stress in a staurosporine-differentiated RGC-5 cell line and the relevance of protein kinase C subtype expression. METHODS: The minimum staurosporine concentration and exposure time necessary to morphologically fully differentiate RGC-5 cells were determined. Cytotoxic injury was provided by oxidative stress with 800 micrometer hydrogen peroxide (H2O2) for 15 hours to morphologically fully-differentiated cells. The cytoprotective effect of hypoxic preconditioning was found by exposing the cell line to 0.3% oxygen for different periods of time. Quantifiable changes in the expression of mRNAs and proteins of the isoenzymes alpha, beta, gamma, delta, epsilon, zeta of protein kinase C were determined before and after 1, 2, 15, and 24 hours of hypoxic preconditioning. RESULTS: Axonal growth in RGC-5 cells after the induction of differentiation with staurosporine caused these cells to resemble neurons. The minimal concentration and exposure time to staurosporine that evoked full differentiation of RGC-5 cells was exposure to 2 micrometer staurosporine for 1 hour. An LDH assay demonstrated that hypoxic preconditioning had neuroprotective effects against hydrogen peroxide-induced oxidative stress. Protein and mRNA levels of PKC isoforms alpha and epsilon increased after preconditioning. CONCLUSIONS: Hypoxic preconditioning of staurosporine-differentiated RGC-5 cells had a cytoprotective effect against oxidative stress. The associated increase of mRNA and proteins of PKC isoenzymes alpha and epsilon suggest some functional relevance of these isoenzymes to the cytoprotective effects conferred by hypoxic preconditioning.
Axons
;
Cell Line
;
Hydrogen
;
Hydrogen Peroxide
;
Ischemic Preconditioning
;
Isoenzymes
;
Neurons
;
Neuroprotective Agents
;
Oxidative Stress
;
Oxygen
;
Protein Isoforms
;
Protein Kinase C
;
Protein Kinases
;
Proteins
;
Retinal Ganglion Cells
;
Retinaldehyde
;
RNA, Messenger
;
Staurosporine
4.Current clinical application of dexmedetomidine for sedation and anesthesia.
Doo Sik KIM ; Hyo seok NA ; Ji hyang LEE ; Young Duck SHIN ; Jae Kwang SHIM ; Hye Won SHIN ; Hyoseok KANG ; Kyoung Woon JOUNG
Anesthesia and Pain Medicine 2017;12(4):306-319
Many sedatives are used clinically and include benzodiazepines, barbiturates, antihistamines, propofol, and alpha-2-agonist. Benzodiazepines activate GABA neuronal receptors in the brain and present sedating, hypnotic, anxiolytic, amnestic, and anticonvulsant effects, but low analgesic effects. Propofol induce sedative, anxiolytic, and amnestic effects but no analgesic effects. However, risks such as cardiopulmonary instability and hypotension must be considered during administration. Dexmedetomidine is a high selective alpha-2 agonist and has many advantages as a sedative. Patients under dexmedetomidine sedation awaken easily and are more likely to be cooperative. Risk of respiratory depression and cardiopulmonary instability is low as well. Additionally, dexmedetomidine decreases amount of analgesic needed during and after surgery, presenting analgesic effects. Dexmedetomidine also decreases risk of delirium. However, bradycardia may occur and biphasic effects on blood pressure may be observed during beginning of administration. Because of lengthy symptom onset and offset time, physicians should carefully control administration at the beginning and end of dexmedetomidine administration. The purpose of this review is to evaluate the efficacy and availability of dexmedetomidine in various clinical fields including sedation for critically ill patients, regional anesthesia, monitored anesthesia care for some invasive procedures, stabilization of heart in cardiac surgery or endoscopic procedures.
Anesthesia*
;
Anesthesia, Conduction
;
Barbiturates
;
Benzodiazepines
;
Blood Pressure
;
Bradycardia
;
Brain
;
Critical Illness
;
Delirium
;
Dexmedetomidine*
;
GABAergic Neurons
;
Heart
;
Histamine Antagonists
;
Humans
;
Hypnotics and Sedatives
;
Hypotension
;
Propofol
;
Respiratory Insufficiency
;
Thoracic Surgery
5.Current clinical application of dexmedetomidine for sedation and anesthesia.
Doo Sik KIM ; Hyo seok NA ; Ji hyang LEE ; Young Duck SHIN ; Jae Kwang SHIM ; Hye Won SHIN ; Hyoseok KANG ; Kyoung Woon JOUNG
Anesthesia and Pain Medicine 2017;12(4):306-319
Many sedatives are used clinically and include benzodiazepines, barbiturates, antihistamines, propofol, and alpha-2-agonist. Benzodiazepines activate GABA neuronal receptors in the brain and present sedating, hypnotic, anxiolytic, amnestic, and anticonvulsant effects, but low analgesic effects. Propofol induce sedative, anxiolytic, and amnestic effects but no analgesic effects. However, risks such as cardiopulmonary instability and hypotension must be considered during administration. Dexmedetomidine is a high selective alpha-2 agonist and has many advantages as a sedative. Patients under dexmedetomidine sedation awaken easily and are more likely to be cooperative. Risk of respiratory depression and cardiopulmonary instability is low as well. Additionally, dexmedetomidine decreases amount of analgesic needed during and after surgery, presenting analgesic effects. Dexmedetomidine also decreases risk of delirium. However, bradycardia may occur and biphasic effects on blood pressure may be observed during beginning of administration. Because of lengthy symptom onset and offset time, physicians should carefully control administration at the beginning and end of dexmedetomidine administration. The purpose of this review is to evaluate the efficacy and availability of dexmedetomidine in various clinical fields including sedation for critically ill patients, regional anesthesia, monitored anesthesia care for some invasive procedures, stabilization of heart in cardiac surgery or endoscopic procedures.
Anesthesia*
;
Anesthesia, Conduction
;
Barbiturates
;
Benzodiazepines
;
Blood Pressure
;
Bradycardia
;
Brain
;
Critical Illness
;
Delirium
;
Dexmedetomidine*
;
GABAergic Neurons
;
Heart
;
Histamine Antagonists
;
Humans
;
Hypnotics and Sedatives
;
Hypotension
;
Propofol
;
Respiratory Insufficiency
;
Thoracic Surgery
6.Clinical characteristics of Epstein-Barr virus infection detected by polymerase chain reaction in children less than 15 years old.
Jong In NA ; Ok Lan KIM ; Do kyoung SEOUNG ; Seong Taek YOO ; Chang Woo LEE ; Doo Young CHOI ; Yeon Kyun OH ; Ji Hyun CHO ; Jong Duck KIM
Korean Journal of Pediatrics 2008;51(11):1191-1197
PURPOSE: Previously, Epstein-Barr virus (EBV) infection was diagnosed by serological examination; currently, many EBV antigen detection methods have been developed and applied clinically for diagnosing EBV infection. To delineate the clinical characteristics of EBV infection, clinical and laboratory findings were evaluated for patients who tested positive in EBV polymerase chain reaction (PCR). METHODS: EBV PCR was conducted in 352 patients admitted to the pediatric ward from January 2004 to December 2006, with more than 2 clinical signs such as fever (> or =37.5degrees C), exudative throat infection, lymphadenopathy, hepatitis of unknown etiology, and splenomegaly. The EBV viral gene was detected by PCR in 115 patients (32%), and the clinical characteristics of these patients were evaluated. Laboratory findings such as leukocytosis, thrombocytopenia, atypical lymphocyte, and alteration in aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels in peripheral blood were examined. The EBV-specific immunoglobulin M antibody (EBV-IgM Ab) was also tested. RESULTS: Most of the children were younger than 8 years (89%), and the male to female ratio was 1.3:1. Exudative throat infection and fever (> or =37.5degrees C) were observed in all patients. Cervical lymph node enlargement was seen in 36 patients (31%); leukocytosis (WBC> or =10,000/mm3), in 54 patients (47%); and atypical lymphocyte (> or =20%), in 28 patients (24%). EBV-IgM Ab was positive in 33 patients (29%). The younger patients had higher ALT levels and higher incidence of positive EBV-IgM Ab than the older patients. CONCLUSION: The cumulative number of patients diagnosed to have EBV infection by PCR increased markedly for those under 8 years. ALT was higher and EBV-IgM Ab was detected more in younger patients with EBV infection.
Alanine Transaminase
;
Aspartate Aminotransferases
;
Child
;
Epstein-Barr Virus Infections
;
Female
;
Fever
;
Genes, Viral
;
Hepatitis
;
Herpesvirus 4, Human
;
Humans
;
Immunoglobulin M
;
Incidence
;
Leukocytosis
;
Lymph Nodes
;
Lymphatic Diseases
;
Lymphocytes
;
Male
;
Pharynx
;
Polymerase Chain Reaction
;
Splenomegaly
;
Thrombocytopenia
7.Comparison of an Endoscopic Scoring System and the Simplified Magnetic Resonance Index of Activity in Patients with Small Bowel Crohn’s Disease
Ji Eun NA ; Hon Soul KIM ; Sung Noh HONG ; Kyoung Doo SONG ; Ji Eun KIM ; Eun Ran KIM ; Young-Ho KIM ; Dong Kyung CHANG
Gut and Liver 2024;18(1):97-105
Background/Aims:
The newly derived simplified magnetic resonance index of activity (MARIAs) has not been verified in comparison to balloon-assisted enteroscopy (BAE) for patients with small bowel Crohn’s disease (CD). We studied the correlation of MARIAs with simple endoscopic scores for CD (SES-CD) of the ileum based on magnetic resonance enterography (MRE) and BAE in patients with small bowel CD.
Methods:
Fifty patients with small bowel CD who underwent BAE and MRE concurrently within 3 months from September 2020 to June 2021 were enrolled in the study. The primary outcome was the correlation between the active score of ileal SES-CD (ileal SES-CDa)/ileal SES-CD and MARIAs based on BAE and MRE. The cutoff value for MARIAs identifying endoscopically active/ severe disease, defined as ileal SES-CDa/ileal SES-CD of 5/7 or more, was analyzed.
Results:
Ileal SES-CDa/ileal SES-CD and MARIAs showed strong associations (R=0.76, p<0.001; R=0.78, p<0.001). The area under the receiver operating characteristic curve of MA-RIAs for ileal SES-CDa ≥5 and ileal SES-CD ≥7 was 0.92 (95% confidence interval, 0.88 to 0.97) and 0.92 (95% confidence interval, 0.87 to 0.97). The cutoff value of MARIAs for detecting active/ severe disease was 3. A MARIAs index value of ≥3 identified ileal SES-CDa ≥5 with a sensitiv-ity of 85% and specificity of 87% and detected ileal SES-CD ≥7 with a sensitivity of 87% and specificity of 86%.
Conclusions
This study validated the applicability of MARIAs compared to BAE-based ileal SES-CDa/SES-CD.
8.Differential Diagnosis in Idiopathic Granulomatous Mastitis and Tuberculous Mastitis.
Hee Ri Na SEO ; Kuk Young NA ; Hyun Ee YIM ; Tae Hee KIM ; Doo Kyoung KANG ; Ki Keun OH ; Seok Yun KANG ; Young Sil AN ; Mison CHUN ; Woojae KIM ; Rae Woong PARK ; Yong Sik JUNG ; Ku Sang KIM
Journal of Breast Cancer 2012;15(1):111-118
PURPOSE: Idiopathic granulomatous mastitis (IGM) is a rare chronic inflammatory disease of unknown etiology. The diagnosis of IGM requires that other granulomatous lesions in the breast be excluded. Tuberculous mastitis (TM) is also an uncommon disease that is often difficult to differentiate from IGM. The purpose of this study is to develop a new algorithm for the differential diagnosis and treatment of IGM and TM. METHODS: Medical records of 68 patients (58 with IGM and 10 with TM) between July 1999 and February 2009 were retrospectively reviewed. RESULTS: The mean age of the patients was 33.5 (IGM) and 40 (TM) years (p=0.018). The median follow-up was 84 months. Of the total 10 patients with TM, 5 patients had a history of pulmonary tuberculosis. The most common symptoms of the diseases were breast lump and pain. However, axillary lymphadenopathy was more seen in TM (50%) compared to IGM (20.6%) (p=0.048). TM showed more cancer-mimicking findings on radiologic study (p=0.028). In IGM, 48 patients (82.7%) underwent surgical wide excision and 21 patients (36.2%) were managed with corticosteroid therapy and antibiotics. All of the TM patients received anti-tuberculosis medications and 9 patients (90%) underwent wide excision. The mean treatment duration was 2.8 months in IGM and 8.4 months in TM. Recurrence developed in 5 patients (8.6%) in IGM and 1 patient (10%) in TM. CONCLUSION: This study shows different characteristics between IGM and TM. The IGM patients were younger and had more mastalgia symptoms than the TM patients. Axillary lymphadenopathy was seen more often in TM patients. Half of the TM patients had pulmonary tuberculosis or tuberculosis lymphadenitis. Surgical wide excision might be both therapeutic and useful for providing an exact diagnosis.
Anti-Bacterial Agents
;
Breast
;
Diagnosis, Differential
;
Female
;
Follow-Up Studies
;
Granulomatous Mastitis
;
Humans
;
Immunoglobulin M
;
Lymphadenitis
;
Lymphatic Diseases
;
Mastitis
;
Mastodynia
;
Medical Records
;
Recurrence
;
Retrospective Studies
;
Tuberculosis
;
Tuberculosis, Pulmonary
9.Effect of Hand-free “Chin Tuck against Resistance (CTAR)” Exercise on Hyoid Bone Movement and the Degree of Aspiration in Stroke Patients with Dysphagia: A Report of 2 Cases.
Sang Hoon JUNG ; Dong Hwan OH ; Doo Ho LEE ; Na Kyoung HWANG ; Hee Su PARK ; Hee Jung KIM ; Yong Hwa KWON ; Yunho KIM ; Nami HAN
Journal of the Korean Dysphagia Society 2018;8(2):121-125
This study recruited two men with dysphagia after stroke, aged 57 and 62 years. They had difficulty using both hands properly due to paralysis of the left upper extremity and rheumatoid arthritis of the right hand in patient 1 and paralysis of both upper extremities in patient 2. This study examined the effects of 4 weeks of hand-free chin-tuck-resistance exercise on the hyoid movement and aspiration. The exercises involved isotonic and isometric parts. In isometric CTAR, the patients were asked to chin tuck against the device 3 times for 60 s each with no repetition. In isotonic CTAR, the patient performed 30 consecutive repetitions by strongly pressing against the resistance device and then releasing it. Based on a video fluoroscopic swallowing study, the degree of aspiration was measured using the Penetration-Aspiration Scale (PAS) and two-dimensional motion analysis of the hyoid bone. Post-intervention, the hyoid movements in both patients improved by 0.16 and 0.22 cm (anterior movement), and 0.26 and 0.28 cm (superior movement), and the PAS scores decreased by 2 and 2 points, respectively. This study confirms that hands-free chin-tuck resistance exercise is applicable and helpful for improving the hyoid movement and reducing aspiration in patients with dysphagia after stroke. Therefore, this exercise can be introduced as an intervention for improving the swallowing function in patients with dysphagia who have difficulty using both hands.
Arthritis, Rheumatoid
;
Chin
;
Deglutition
;
Deglutition Disorders*
;
Exercise
;
Hand
;
Humans
;
Hyoid Bone*
;
Male
;
Paralysis
;
Stroke*
;
Upper Extremity
10.Efficacy and Safety of Paliperidone Extended Release in Schizophrenia Patients Requiring a Switch in Antipsychotic Medication by Switching Previous Antipsychotics to Paliperidone Extended Release.
Young Seon MOON ; Kyoung Sae NA ; Chul Eung KIM ; Yong Sik KIM ; Jin Sang YOON ; Yong Min AHN ; Hee Yeon JUNG ; Bum Hee YU ; Yang Whan JEON ; Sang Kyu LEE ; Jeong Ho SEOK ; Byoung Joo HAM ; Doo Byung PARK ; Hyun KIM ; Byung Wook LEE ; Chang Hyung HONG ; Jong Woo KIM ; Jin Hee HAN
Korean Journal of Psychopharmacology 2012;23(3):97-106
OBJECTIVE: This study aimed to evaluate the clinical efficacy, safety, and tolerability of paliperidone extended release (ER) in patients with schizophrenia by switching previous antipsychotics to paliperidone ER. METHODS: An open-label, 24 weeks, prospective, non-comparative, multi-center study evaluated total 387 patients with schizophrenia requiring a switch in antipsychotic medication due to suboptimal efficacy, intolerability, and non-compliance. Patients were switched to flexible-dose trial of paliperidone ER (3-12 mg/day). Efficacy was measured by Krawiecka Scale, Clinical Global Impression-Schizophrenia-Severity (CGI-SCH-S), Clinical Global Impression-Schizophrenia-Improvement (CGI-SCH-I), sleep visual analog scale (VAS), and Personal and Social Performance Scale (PSP). Safety assessments included adverse events (AEs), evaluation of extrapyramidal symptoms (EPS) using the Drug Induced Extrapyramidal Symptoms Scale (DIEPSS), and laboratory tests. RESULTS: Data from a total of 321 subjects who took the paliperidone ER and had at least one follow-up assessment without a major protocol violation were analyzed. Switching to paliperidone ER led to a significant improvement in the Krawiecka, CGI-SCH-S, CGI-SCH-I, PSP, and DIEPSS scales. However, serum prolactin levels and metabolic parameters including body weight and waist circumference were significantly increased. Insomnia was the most common adverse event. CONCLUSION: This study suggested that patients with schizophrenia who showed insufficient response or intolerance to other previous antipsychotics can be switched to paliperidone ER, with efficacy, safety, and tolerability.
Antipsychotic Agents
;
Body Weight
;
Follow-Up Studies
;
Humans
;
Isoxazoles
;
Prolactin
;
Prospective Studies
;
Pyrimidines
;
Schizophrenia
;
Sleep Initiation and Maintenance Disorders
;
Waist Circumference
;
Weights and Measures