• Sleep Medicine and Psychophysiology
• /
• v.6 no.2
• /
• pp.143-148
• /
• 1999

Objectives: We studied correlations between neuropsychological tests and perceptual disorder in patients with head trauma and psychiatric patients in order to explore the functional localization of brain in perceptual disorders. Methods: Halstead Reitan Neuropsychological Test Battery, Korean Wechsler Intelligent Scale, and Minnesota Multiphasic Peronality Inventory(MMPI) were administered to one hundred ninteen patients consisting of sixty nine psychiatric patients and fifty patients with brain damage. We tested the correlation between results of neuropsychological tests and peceptual disorder scale PDS) made from nine items related with perceptual disorder in MMPI. T-tests between twenty one higher scorers and seventeen lower scorers of PDS were also performed in the psychiatric group. Results: In brain damage group, significant correlations were found in tests related with function of frontal lobe such as category tests, trail making tests, tactual performance test, and fingertip number writing test, and significant correlations were also noted in the tests related with function of right hemisphere such as tactual performance test, performance, picture completion, picture arrangement and block design. Tests related with subcortical function such as digit symbol test, arithmetic and digit span were signigicantly correlated, too. In psychiatric group, there were significant differences of PDS in the tests related with function of right hemisphere such as picture completion, block design, and right laterality index, and in the tests related with function of left hemisphere such as comprehension, vocabulary, and similarities. Conclusion: Perceptual disorder seems to be related with functions of frontal lobe, right hemisphere, and subcortex in both groups. In a psychiatric group, left hemisphere may be also partially related with perceptual disorder.

• Korean Journal of Psychosomatic Medicine
• /
• v.29 no.1
• /
• pp.42-48
• /
• 2021

Objectives : Based on the fact that cognitive functions decline known as comorbid symptoms of depression can precede depression, this study seeks to observe the effects of depressive symptoms and anxiety symptoms on cognitive function in healthy subjects. Methods : To recruit 50 general populations to evaluate cognitive and clinical symptoms and to find out the effects of clinical symptoms on cognitive functions, Pearson correlation and multivariate regression were conducted. Correlation analysis of subdomain cognitive function was conducted for reliability analysis. Results : Trail making test-B that evaluates the execution function correlates with depressive symptoms (r=0.300, p=0.03) and age (r=0.323, p=0.02). Depressive symptoms (β=0.304, p=0.03) and age (β=0.335, p=0.01) were significantly related to Trail making test -B (Adjusted R²=0.148). Subjective cognitive tests correlates with anxiety symptoms (r=0.434, p=0.002). In the correlation between cognitive functional items, Subjective cognitive tests was found to be correlated with other test except Spotter. Conclusions : In this study, depressive symptoms contribute independently to executive functions in addition to demographic characteristics such as age and duration of education. Given that cognitive decline is a common long-term clinical outcome in depression, we expect active early intervention and evaluation of cognitive function to be helpful.

• Korean Journal of Psychosomatic Medicine
• /
• v.18 no.1
• /
• pp.11-18
• /
• 2010

The clinical assessment of a patient with a cerebral lesion is not easy to physicians. Extensive neuropsycho-logical tests often need both skilled experience and some special tools. Some bedside tests equally provide valuable clues to localize cerebral lesion, when a clinician knows functional anatomy of cerebral hemisphere. In this article, several techniques used to evaluate cerebral cortical function will be introduced.

• Journal of Korean Orthopaedic Sports Medicine
• /
• v.4 no.2
• /
• pp.109-115
• /
• 2005

Purpose: The purpose of this study was to evaluate the effectiveness of three functional performance tests and one-legged hop test and to establish the reference data of the three functional performance tests of the active young Korean men. Materials and methods: We performed five tests on 40 normal subjects such as one-legged hop test (single hop, triple hop) and the three functional performance tests (carioca test, co-contraction test, shuttle run test). The mean age was 28.4 years. The mean score of Tegner activity scale was 6.2 and Lysholm score 98.2 Mean value and standard deviation were obtained. The correlation of age, height and weight with the results, the relationship between FPT and one-legged hop test and the mean difference between dominant and non-dominant limbs were statistically calculated. Results: All data obtained were normally distributed and there were no significant relationship between age, height and weight. The paired t-test of one legged hop test showed no statistical significance between dominant and non-dominant limbs. The results of one legged hop test had strong relationship with functional performance test. Conclusion; The three functional performance tests can be a useful functional test in ACL-insufficient athletes. Our results can be used as normal reference data of the normal active Korean men.

• Clinical and Experimental Pediatrics
• /
• v.52 no.9
• /
• pp.991-998
• /
• 2009

Purpose : Thyroid hormone is essential for development of the brain in early life. Thyroid dysfunction is more common in the first 2-4 postnatal weeks of life in premature infants than in term infants. This study aimed to identify the prevalence and clinical course of thyroid dysfunction in prematurity. Methods : Premature infants admitted to and given neonatal screenings at Dankook University Hospital between April 1999 and March 2008 were included in this study. We retrospectively reviewed medical records and categorized subjects into six groups: normal, hypothyroidism, hyperthyrotropinemia, hypothyroxinemia, delayed onset of hypothyroidism, and delayed onset of hyperthyrotropinemia. Results : Among 599 subjects, 136 (23%) had initially abnormal thyroid function test (TFT); transient hypothyroxinemia was the most frequent condition (118, 20%). In addition, 8 (17%) of 46 subjects with initially normal TFT levels showed delayed onset of hyperthyrotropinemia with or without low free thyroxine ($fT_4$). Thyroxine was prescribed for 10 patients (1.7%) due to low $fT_4$ levels but was discontinued in 9 patients during follow-up. Thyroid scan confirmed ectopic thyroid in one patient. Conclusion : Thyroid dysfunction was frequently seen in premature infants, but most of the conditions were transient. In addition, some infants showed delayed TSH elevation on routine follow-up. Therefore, a recheck of the thyroid function of premature infants at 3-4 weeks is recommended, even if normal thyroid function is initially seen, especially in prematurity of less than 33 weeks of gestational age or birth weight of less than 2,500 grams.

• Journal of the Korea Society of Computer and Information
• /
• v.26 no.11
• /
• pp.191-199
• /
• 2021

This study aims to present the need to supplement the driver's license renewal test for elderly drivers. In Korea, the proportion of elderly drivers is increasing as the elderly population increases rapidly. Overall the traffic accident rate is decreasing but the traffic accident and death rate from traffic accidents are increasing in older drivers. In this study the assessments and education conducted when renewing the driver's license for elderly drivers conducted in Korea were conducted to find out the necessary tests compared to the current situation of foreign countries. Although it is appropriate to evaluate the three key functional areas of vision, cognition, motor and somatosensory, we currently evaluate visual acurity in vison area. While MMSE-K and Clock drawing tests are not recognizable for mild cognitive impairment in cognitive areas. The motor and somato sensory function to perform driving are not evaluated at all. Therefore for safe driving of older drivers, the test to be conducted during renewal of the driver's license will need to supplement that the visual field and contrast sensitivity in vision area, cognitive function from mild cognitive impairments, and the endurance, functional range of motion and proprioception in motor function area.

• Korean Journal of Bronchoesophagology
• /
• v.3 no.1
• /
• pp.101-108
• /
• 1997

Hypothyroidism is not uncommon complication of therapy for head and neck cancer. A series of 52 patients treated with either radiotherapy alone or combined with surgery was retrospectively studied. Diagnostic procedure included total T3, T4 and TSH measured by radioimmunoassay. The rate of hypothyroidism was 25% (subclinical 15.4%, clinical 9.6%). The incidence of hypothyroidism increased to 40% when radiotherapy was combined with surgery. Risk factors influenced a high incidence of hypothyroidism were : tumor stage, primary tumor site, combination of radiotherapy and surgery (especially combined with laryngectomy). We advocate routine monitoring of head md neck cancer patients for hypothyroidism after treatment and recommend levothyroxine replacement therapy for subclinical hypothyroidism.

• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2011.05a
• /
• pp.415-416
• /
• 2011

• Journal of Korean Orthopaedic Sports Medicine
• /
• v.7 no.2
• /
• pp.95-121
• /
• 2008

Purpose: The goal is to identify the effectiveness of the IKDC subjective score in the clinical outcome study after reconstruction of the anterior cruciate ligament. Materials and Methods: Twenty-four patients after ACL reconstructions using twelve hamstring autografts and twelve Achilles allografts were evaluated. Lysholm knee score, IKDC subjective score, Knee Outcome Survey score and Tegner activity score were evaluated for the subjective outcome value. Static instability tests, Biodex dynamometer and one-legged hop for distance tests were done for the objective outcome value. Three functional performance tests (FPTs) including Carioca test, Shuttle run test and Co-contraction test were performed for deciding the final results. Each scale was compared with FPTs results and Pearson's correlation test was used to test the correlation between the parameters. Results: IKDC subjective score, single hop test, and quadriceps power in low velocity of Biodex dynamometer tests had a positive correlation with the total FPTs results. Conclusion: IKDC subjective score can be an effective test to evaluate the functional status as well as the subjective outcome after ACL reconstruction.

• Investigative Magnetic Resonance Imaging
• /
• v.6 no.1
• /
• pp.5-20
• /
• 2002

허혈성 심질환 환자의 평가도구로서 MRI의 역할이 확대된 데에는 소위 "one-stop shop"이라는 통합적 심장검사법의 개발이 계기가 되었다. 즉 한 번의 MRI 검사로서 심실벽운동을 평가하여 심근의 기능과 예비능을 측정하여 만성 심근경색을 평가할 수 있고, 심근의 관류를 평가할 수 있고, 관동맥의 혈류 예비능과 심근의 viability를 평가하고, 관동맥 조영술을 통해, 수술 후의 우회로 평가 및 관동맥의 협착 여부의 진단이 가능한 프로토콜이 MRI장비마다 각각 개발되어 보급되고 있다. 하드웨어와 소프트웨어의 개발과 지속적인 연구를 통해서 MRI는 허혈성 심질환의 진단적 검사로서 기존의 다른 검사들과 비교하여 높은 시간적, 공간적 해상력으로 정확한 구조와 기능의 평가를 제공할 수 있는 가장 유용한 검사가 될 것으로 사료된다 특히, MR 관동맥조영술, 심근관류검사, 심근 표지법, dobutamine 부하검사, viability 평가, plaque characterization, MR spectroscopy 분야에서 현재 활발히 연구가 진행되고 있으며 향후 임상적용이 확대될 것으로 예상된다.