뇌경색 환자에서 실로스타졸 투여 후 발생하는 두통과 경동맥 경직과의 연관성

오응석,이지희,구본정,박재형,김제,김대현 대한신경과학회 2008 대한신경과학회지 Vol.26 No.2

Background: Cilostazol leads to inhibition of platelet aggregation and to vasodilatation. It is widely used for the secondary prevention of cerebral infarction. However, headache is a well-known adverse effect of cilostazol, and these headaches may be caused by the vasodilation of the cerebral artery. The goal of our study was to assess the frequency and severity of headaches following cilostazol treatment and to evaluate factors related to the development of these headaches. Methods: Seventy patients with cerebral infarction were included in this study. We measured the carotid intima media thickness (IMT), the distensibility of the carotid artery (CAD), the brachial ankle index (ABI), and the brachial ankle pulse wave velocity (PWV) in order to quantify the degree of atherosclerosis and arterial stiffness. Patients were then given 100 mg of cilostazol in tablet form twice daily. For three days, we evaluated headache incidence and severity using a verbal rating scale (0-10). Results: Twenty three (32.9%) patients reported headache during cilostazol medication and 7 patients had severe headache. Women were more likely to develop headaches than men (p=0.03). In addition, the mean IMT was lower in subjects with cilostazol-induced headache than in the headache-free subjects (0.8±0.1 vs 1.01±0.2 mm, p=0.001), while CAD was higher in these subjects (0.3±0.1 vs 0.25±0.1, p=0.03). There was no difference in PWV and ABI. Conclusions: Lower carotid IMT, increased CAD, and female gender may be associated with the development of cilostazol-induced headache in patients with cerebral inafarction, but not the systemic arterial stiffness.

파킨슨병에서 보행동결 및 비운동증상에 대한 고주파반복적 경두개자기자극 연구

오응석,박상민,임중걸,이애영,복수경,송희정 대한신경과학회 2015 대한신경과학회지 Vol.33 No.4

Background: To investigate the effect of high frequency repetitive transcranial magnetic stimulation (rTMS) on motor symptoms especially freezing of gait (FoG), and nonmotor symptoms in Parkinson disease (PD). Methods: In this randomized, double-blind, sham-controlled study, fifteen PD patients were enrolled. For 10 days, 5 Hz, both motor cortices and dorsolateral prefrontal cortex (DLPFC) were stimulated. The motor symptoms and FoG were evaluated by the Unified Parkinson’s Disease Rating Scale (UPDRS) part III, FoG questionnaire (FoG-Q), variable parameters of FoG, and kinematic gait analysis. Nonmotor symptoms were evaluated by the Korean version of non-Motor Symptoms Scale (K-NMSS), 39-item Parkinson disease questionnaire (K-PDQ39), Mini-Mental Status examination (K-MMSE), Montreal Cognitive Assessment (K-MoCA), and Frontal assessment battery (FAB). Results: Finally, 12 patients (real:8, sham:4) data were analyzed. FoG-Q and UPDRS part III were improved (p=0.002, 0.022) and variable parameters of FoG was improved after 10 days stimulation in real treatment group. In addition, their effects maintained until 6 weeks from the baseline. In nonmotor symptoms, K-NMSS and K-PDQ 39 were improved until 6 weeks in real treatment group (p=0.002, 0.002), however no changes were shown in cognitive function test. Conclusions: The high frequency rTMS was effective for FoG, in addition to motor and a few nonmotor symptoms in PD.

The Prevalence of Essential Tremor in Elderly Koreans

오응석,김종민,김영은,윤지영,김지선,김상은,이석범,이정재,박준혁,김태희,김기웅,전범석 대한의학회 2014 Journal of Korean medical science Vol.12 No.12

Essential tremor (ET) is one of the most common movement disorders. The prevalence of ETvaries substantially among studies. In Korea, there is no well-designed epidemiologicalstudy of the prevalence of ET. Thus, we investigated the prevalence of ET in a communityin Korea. Standardized interviews and in-person neurological examinations were performedin a random sample of the elderly aged 65 yr or older. Next, movement specialistsattempted to diagnose ET clinically. People who showed equivocal parkinsonian featuresunderwent dopamine transporter imaging using [123I]-FP-CIT SPECT, to differentiate ETfrom parkinsonism. A total of 714 subjects participated in this population-based study. Twenty six of these subjects were diagnosed as having ET. The crude prevalence of ET was3.64 per 100 persons. Age, gender, or education period were not different between the ETpatients and the non-ET subjects. The prevalence of ET was slightly lower than thosereported in previous studies. Further studies including more subjects are warranted.

파킨슨병 환자에 적합한 새로운 연하장애 완화용 식품의 개발

오응석,김범근,안소영 대한노인재활의학회 2022 Geriatric rehabilitation Vol.12 No.2

Objective: Dysphagia associated with Parkinson’s disease (PD) affects the mortality and quality of life of patients with PD. Avoiding aspiration and maintaining swallowing ability are among the concerns regarding PD care. Therefore, we developed a swallowing supplement for easier swallowing and tolerability in patients with PD. Methods: Thirty patients with PD and 50 healthy controls were enrolled and their swallowing function measured using the videofluoroscopic swallowing study (VFSS) and several dysphagia scales. The Unified Parkinson’s Disease Rating Scale motor scores, Hoehn and Yahr stage, and levodopa doses were evaluated in patients with PD. The VFSS and survey were used to assess the viscosity, color, taste, nutrition, safety, and tolerability of the swallowing supplement. Results: Compared with controls, patients with PD had significantly lower total and sub-item scores of the swallowing quality of life (swal-QoL). Using commercialized yogurt, the pharyngeal delay time (PDT) and the modified penetration aspiration scale were higher in the PD group than in the control group. The swallowing supplement significantly shortened the PDT and pharyngeal transit time (PTT). Moreover, compared with commercialized yogurt, it improved pharyngeal wall coating, PTT, and aspiration in the videofluoroscopic dysphagia subscales. The survey scores were above average to good in the “easy swallowing” and “pharyngeal residual sense” items and tolerable in the remaining 6 preference items. Conclusion: The develped swallowing supplement could prevent aspiration and dysphagia omplications in patients with PD.

자문의뢰된 섬망환자에 대한 진단 일치율과 정신과 의견의 반영도

오응석,남정현,김석현,박용천,김성목,Oh, Eung-Seok,Nam, Jung-Hyun,Kim, Seok-Hyeon,Park, Yong-Chon,Kim, Sung-Mok 한국정신신체의학회 2001 정신신체의학 Vol.9 No.2

연구목적: 신경정신과에 자문 의뢰된 사례 중 섬망상태를 주 증상으로 한 환자들을 대상으로 자문의사와 의뢰의사간의 진단 일치율 및 정신과 권고사항에 대한 반영도를 조사하여 자문시 상호 협조정도를 알아보고 치료 반영도에 영향을 미치는 요인을 밝히려 하였다. 방법: 1995년 7월 1일부터 1997년 12월 31일 사이에 한양대학교 구리병원에 입원하여 신경정신과에 자문 의뢰되었던 583명 중 54명의 섬망환자를 대상으로 하였다. 대상자의 자문요청서와 과거입원기록을 통해서 환자들의 인적사항, 입원진단명, 증상, 의뢰 전 처방, 정신과 처방, 의뢰 후 처방, 섬망에 대해 의뢰의사가 내린 진단과 자문의사의 진단 등에 대한 정보를 얻었다. 권고사항에 대한 반영도는 완전 반영, 부분 반영, 비반영으로 나누어 이중 완전 반영과 부분 반영을 반영한 것으로 평가하였다 의뢰한 과를 각 과별 그리고 내과계와 외과계로 나누어 각각의 반영도를 비교하였다. 결과: 섬망상태의 원인에 대한 진단 일치율은 자문과의 진단 기준으로 보면 원인이 기질성 뇌 증후군 (organic brain syndrome)인 경우가 가장 높았고 (85.7%) 전반적인 의학적 상태(general medical condition)의 경우가 가장 낮았다 (0%). 반영도는 의뢰과별로 유의한 차이가 없었으며, 내과계와 외과계간에도 유의한 차이가 없었다. 반영도에 영향을 미치는 중상을 비교한 결과 충동적 공격적 행동이 동반된 경우에 반영도가 73.5%이고, 행동변화가 동반되지 않은 경우가 40.0%여서 행동상의 문제가 동반되었을 때 정선과 의견에 대한 반영도가 통계적으로 유의하게 높았다. 수면장애가 동반된 경우에도 반영도가 높았는데 행동변화와 수연장애의 두 증상을 하나의 변인으로 비교한 결과, 두 증상이 모두 있는 경우는 반영도가 80.0%, 하나의 증상만 있거나 모두 없는 경우 반영도가 44.8%여서 유의한 차이가 있었다. 의뢰과에서 평가가 용이하지 않은 증상인 의식상태, 지남력상태, 환각의 유무는 반영도와 통계적 유의성이 없었다. 결론: 섬망의 원인에 대한 진단 일치율은 병변의 확인이 용이한 기질성 뇌 증후군의 경우가 가장 높았고 권고사항에 대한 반영도에 영향을 주는 요인은 행동변화와 수면장애의 증상이 나타나는 경우였다. Objectives : The author investigated the rate of diagnostic agreement between consultants and consultees and concordance ratings on the consultees' recommendation to examine the interactive collaborativeness and find the factors that influence the reflectiveness on treatment. Methods : The subjects were 54 patients with delirium selected from 583 cases referred from other departments who were admitted to Hanyang University Kuri Hospital from July 1, 1995 to Dec. 31, 1997. The information on demographic data, diagnostic impression, symptoms, management before consultation, psychiatric recommendation, management after consultation, diagnoses at the referring departments and the psychiatric department on delirium was obtained by medical records and consultation papers retrospectively. The reflectiveness of the psychiatric recommendation was divided into complete concordance, partial concordance, and nonconcordance and among them the complete and partial concordance were considered for concordance. The reflectiveness was compared among all the departments and between medical unit and surgery unit. Results: The rate of diagnostic agreement on the cause of delirium was highest(85.7%) in organic brain syndrome and lowest in general medical condition(0%). There was no statistically significant differences between medical unit and surgery unit. Neither differences were there among all the departments. In comparing symptoms affecting the reflectiveness, it was 73.5% in impulsive and aggressive behavioral changes, whereas 40.0% in behavioral changes. Reflectiveness of psychiatric recommendation showed higher scores in the case of behavioral changes. The cases of sleep problem showed higher scores of reflectiveness. When these two symptoms of behavioral change and sleep problem were compared as one factor, the results suggested that there were significant differences. The cases with both two symptoms showed 80% in reflectiveness, and the cases with only one symptom or no symptoms showed 44.8% in reflectiveness. There were no statistical significances between concordance ratings and symptoms such as disturbance of consciousness, disorientation, and hallucination that cannot be easily evaluated at the referring departments. Conclusions : The rate of diagnostic agreement on the cause of delirium was highest in the case of organic brain syndrome in which lesions can be easily recognized. The factors that influence the reflectiveness of psychiatric recommendation were behavior changes and sleep disorders in the symptoms of evaluated cases.

경도인지장애

오응석,이애영 대한신경과학회 2016 대한신경과학회지 Vol.34 No.3

Mild cognitive impairment (MCI) is an intermediate cognitive state between normal aging and dementia. It has disparate features in activities of daily life which is interfered notably in dementia. Recently, there have been consistent reports of MCI which is predementia, however significant controversy exist. In this review, we make out the diagnostic criteria, classification, risk factor, prevalence, diagnostic test including neuroimaging and biomarkers, management, and prognosis of MCI. This review will cover current knowledge and future directions on MCI.

Photoluminescent Properties of $\textrm{Zn}_2\textrm{SiO}_4$:Mn Green Phosphors Prepared by the Solution Reaction Method

박응석,장호정,조태환,Park, Eung-Seok,Jang, Ho-Jeong,Jo, Tae-Hwan Materials Research Society of Korea 1999 한국재료학회지 Vol.9 No.1

액상반응법에 의해 $\textrm{Zn}_{2-x}\textrm{Mn}_{x}\textrm{SiO}_{4}$ 녹색 형광체를 합성한 후 소성온도($900^{\circ}C$-$1200^{\circ}C$) 및 Mn 활성제 농도(x=0.01~0.20)에 따른 발광특성과 결정특성을 조사하였다. 147nm와 254nm 여기원을 사용한 경우 형광체의 소성온도가 $900^{\circ}C$에서 $1200^{\circ}C$로 증가함에 따라 상대발광피크강도는 약 4배 이상 크게 증가하였다. XRD 분석결과 $1100^{\circ}C$이상의 소성온도에서 $\textrm{Zn}_{2}\textrm{SiO}_{4}$:Mn 녹색 형광체에서 나타나는 전형적인 willemite 결정구조를 보여주었다. $1200^{\circ}C$의 온도로 소성된 $\textrm{Zn}_{2-x}\textrm{Mn}_{x}\textrm{SiO}_{4}$형광체 시료의 경우 147nm 여기원에서 Mn 활성제 농도가 x=0.02에서 최대 발광강도를 나타내었으며 x=0.10 이상에서 발광강도가 급격히 저하하는 농도 칭 현상이 나타났다. SEM 분석결과 형광체 입자는 구형에 가까운 형상을 보여주었으며 $1200^{\circ}C$에서 소성된 형광체 입자크기는 약 2~3$\mu\textrm{m}$이었다.EX>이었다. $\textrm{Zn}_{2-x}\textrm{Mn}_{x}\textrm{SiO}_{4}$ green phosphors have been prepared by the solution reaction method and the photoluminescence and crystalline properties were studied as a function of both the firing temperature ($900^{\circ}C$~$1200^{\circ}C$) and the concentration of Mn activator (x=0.01~0.20). Under 147 nm and 254nm and excitation sources, the emission intensity of the phosphors was increased about 4 times increasing firing temperatures from $900^{\circ}C$ to $1200^{\circ}C$. From the XRD analysis, $\textrm{Zn}_{2}\textrm{SiO}_{4}$:Mn phosphors fired above $1100^{\circ}C$ showed willemite crystal structure. Under 147nm excitation, the maximum emission intensity was obtained at the Mn concentration of x=0.02 for $\textrm{Zn}_{2-x}\textrm{Mn}_{x}\textrm{SiO}_{4}$ phosphors fired at $1200^{\circ}C$ and the concentration quenching was occurred at the Mn concentration above x=0.10. The phosphor particles showed almost spherical shapes with the average size of around 2~3$\mu\textrm{m}$ by the SEM morphology.

영남문집해제 : 두곡집

고응석 영남대학교 민족문화연구소 1988 민족문화연구소 자료총서 Vol.4 No.-

우리나라의 빈혈성 질환

채응석,박인서 중앙대부설한국의과학연구소 1969 한국의과학 Vol.1 No.10

공공기록물보존제도의 현황과 발전방향

고응석 한국자치발전연구원 2002 자치발전 Vol.2002 No.5