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Dive into the research topics where Won-Hyoung Kim is active.

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Featured researches published by Won-Hyoung Kim.


Psychiatry Investigation | 2009

Comparative Analysis of Cognitive Function in Schizophrenia with and without Obsessive Compulsive Disorder.

Myung-Ji Lee; Yong-Bum Shin; Young-Kyung Sunwoo; Seung-Ho Jung; Won-Hyoung Kim; Min-Hee Kang; Jeong-Seop Lee; Jae Nam Bae; Kim Ch

Objective We investigated the neurocognitive deficits in schizophrenic patients with and without obsessive-compulsive disorder (OCD). Methods We grouped 27 patients as either obsessive-compulsive or non-obsessive-compulsive based on the presence of OCD. The two groups completed the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), Positive and Negative Symptom Scale (PANSS), and Hamilton Depression Scale. The intelligence quotient (IQ) was tested using the Korean Wechsler Adult Intelligence Scale. The memory quotient (MQ) was tested using the Korean-Auditory Verbal Learning and Korean-Complex Figure Test. The executive intelligence quotient (EIQ) was determined using the Kims executive intelligence test (EXIT). Results Ten of the 27 patients had OCD. The compulsion score of Y-BOCS was positively correlated with positive symptoms, negative symptoms, and the total scores of PANSS. The OCD-schizophrenia patients had higher IQs. No difference was found in MQ. Although the EIQ did not differ between the two groups, the OCD-schizophrenia patients performed better at the Stroop-interference and verbal fluency tests, which was highly dependent on executive function. Conclusion Our findings suggest that OCD may have a protective effect on some cognitive function, at least in relatively early stage of illness. Moreover, based on clinical, neurocognitive features, schizophrenia with OCD could be considered as a distinct subtype of schizophrenia.


International Journal of Geriatric Psychiatry | 2012

Restless legs syndrome in older people: a community-based study on its prevalence and association with major depressive disorder in older Korean adults

Won-Hyoung Kim; Byung-Soo Kim; Shyn-Kyum Kim; Sung-Man Chang; Dong-Woo Lee; Maeng-Je Cho; Jae Nam Bae

The prevalence of restless legs syndrome (RLS) and its relationship with the demographic variables in an older Korean population were examined.


International Psychogeriatrics | 2013

Prevalence of insomnia and associated factors in a community sample of elderly individuals in South Korea

Won-Hyoung Kim; Byung-Soo Kim; Shyn-Kyum Kim; Sung-Man Chang; Dong-Woo Lee; Maeng-Je Cho; Jae Nam Bae

BACKGROUND Insomnia is a common psychiatric complaint among elderly individuals. This study investigates the prevalence and sociodemographic correlates of insomnia by considering a community sample of elderly individuals in South Korea. METHODS A face-to-face household survey was conducted in five regions of South Korea from June 2008 to August 2008. Among a total of 3,074 individuals aged 65 years and over, 2,002 participants were interviewed. The presence of insomnia was defined as having at least one of four sleep complaints that included difficulty in initiating sleep (DIS), difficulty in maintaining sleep (DMS), early morning awakening (EMA), and non-restorative sleep (NRS) more than three times per week in the last month. The Restless Legs Syndrome (RLS) Questionnaire, a short form of the Geriatric Depression scale (GDS), and a medical review of systems were implemented. RESULTS Insomnia was found in 29.2% of the participants. DIS, DMS, EMA, and NRS accounted for 19.4%, 21.7%, 19.6%, and 8.0% of the participants respectively. Insomnia accompanied by daytime consequences accounted for 17.1% of the participants. The participants who were females, had no education, lived alone, showed symptoms of RLS or depression, and had a lifetime history of physical illness were significantly more likely to report insomnia. The prevalence of DIS, DMS, EMA, or insomnia increased slightly with age, whereas that of NRS decreased slightly. The lifetime history of head trauma, hyperlipidemia, heart disease, anemia, or depression was significantly related to insomnia. CONCLUSION Sleep problems are common among elderly individuals and are closely related to their lifetime history of physical illness.


Psychiatry Investigation | 2009

Psychiatric disorder in two siblings with hallervorden-spatz disease.

Young-Kyung Sunwoo; Jeong-Seop Lee; Won-Hyoung Kim; Yong-Bum Shin; Myung-Ji Lee; In-Hee Cho; Sun-Myeong Ock

Hallervorden-Spatz disease (HSD) is a rare autosomal-recessive hereditary disorder characterized by the early onset of progressive movement alterations, including dystonia, rigidity, choreoathetosis, and mental deterioration. HSD is also associated with a variety of psychiatric symptoms, primarily depression and mental deterioration. However, psychosis has rarely been reported as a major symptom of HSD. We report two siblings who presented psychiatric symptoms as major clinical presentations, accompanied by ataxic and spastic gait, dysarthria, and typical neuroimaging findings of HSD. A 14-year-old girl presented complex motor tics, stereotypic behavior and anxiety symptoms. Her older brother, a 16-year-old boy, presented prominent auditory hallucinations, persecutory delusions and social withdrawal symptoms. Psychiatric symptoms were improved after atypical antipsychotic treatment. HSD is a rare disease but should be carefully considered in the diagnosis of patients with both motor disorder and various psychiatric symptoms.


Progress in Neuro-psychopharmacology & Biological Psychiatry | 2012

Relationship between inflammation and metabolic syndrome following treatment with paliperidone for schizophrenia

Kyoung Sae Na; Won-Hyoung Kim; Han-Yong Jung; Seong Gon Ryu; Kyung Joon Min; Ki-Chang Park; Yong-Sik Kim; Jin-Sang Yoon; Yong Min Ahn; Kim Ch

OBJECTIVE Metabolic syndrome and antipsychotic medications are associated with inflammation. This study investigated the relationship between inflammation and metabolic syndrome in patients with schizophrenia. It also examined the effects of paliperidone extended release (ER) treatment on metabolic parameters. METHODS Data were analyzed from schizophrenic patients who participated in a multi-center, open-label, non-comparative clinical trial. Anthropomorphic measurements (i.e., weight, waist circumference, and blood pressure) were assessed along with fasting laboratory values, including white blood cell (WBC) count, glucose, high-density lipoprotein, and triglycerides. RESULTS Among the 225 patients at baseline, the group with the highest WBC count displayed a 5.9-fold risk for metabolic syndrome compared with that of the lowest group. An increase of 10(3)WBCs/μL was associated with a 1.4-fold increased risk for metabolic syndrome. After 24weeks of treatment with paliperidone ER, significant increases were observed in waist circumference and body weight. Changes in WBC count were positively correlated with changes in waist circumference. CONCLUSIONS Schizophrenic patients with high levels of inflammation should be carefully monitored for metabolic syndrome. Moreover, strategies to reduce inflammation and obesity may prevent metabolic syndrome in patients with schizophrenia who take atypical antipsychotic medication.


Psychiatry Investigation | 2009

Major Depressive Disorder Preceding the Onset of Progressive Supranuclear Palsy

Won-Hyoung Kim; Young-Soo Lee; Seung-Ho Jung; Hye-Jin Choi; Myung-Ji Lee; Min-Hee Kang; Kim Ch; Jeong-Seop Lee; Jae Nam Bae

Progressive supranuclear palsy (PSP) is a neurodegenerative disease characterized by vertical supranuclear palsy and parkinsonian symptoms. The neuropsychiatric symptoms of PSP include anhedonia, depressed mood and cognitive impairment. Patients with PSP have an increased risk for developing depressive disorders within the next year. However, it is rare to find that major depressive disorder was the antecedent diagnosis of a patient who was later diagnosed with PSP. We present here a patient who suffered from PSP with repetitive falls, a masked face and dysarthria after developing a major depressive disorder.


Psycho-oncology | 2016

Correlates of oncologist-issued referrals for psycho-oncology services: what we learned from the electronic voluntary screening and referral system for depression (eVSRS-D)

Joo-Young Lee; Dooyoung Jung; Won-Hyoung Kim; Hyuk-Joon Lee; Dong-Young Noh; Bong-Jin Hahm

Depression in cancer patients is under‐recognized and under‐treated. To better identify depression, we designed a voluntary depression screening system. Based on its data, we examined trends in oncologist‐issued referrals for the psycho‐oncology service (POS).


Psychosomatic Medicine | 2016

Longitudinal Association of Poor Sleep Quality With Chemotherapy-Induced Nausea and Vomiting in Patients With Breast Cancer.

Dooyoung Jung; Kwang-Min Lee; Won-Hyoung Kim; Joo-Young Lee; Tae Yong Kim; Seock-Ah Im; Kyung-Hun Lee; David Spiegel; Bong-Jin Hahm

Objective Risk factors for chemotherapy-induced nausea and vomiting (CINV) include older age, female sex, alcohol consumption, and a history of motion sickness. Although gastrointestinal symptoms are found to be related with sleep and mood in other conditions, little is known about their effects on CINV. Methods This prospective observational study recruited patients with early-stage breast cancer who had recovered from surgery before receiving a first cycle of anthracycline and cyclophosphamide–based chemotherapy. Candidate factors associated with CINV were assessed before chemotherapy by using the following: the Pittsburgh Sleep Quality Index, the Insomnia Severity Index, the Epworth Sleepiness Scale, and the Hospital Anxiety and Depression Scale. Chemotherapy-induced nausea (CIN) and chemotherapy-induced vomiting (CIV) were defined according to a numeric rating scale (0–10) as follows: ≥3, nausea; ≥1, vomiting. Results Between February 2012 and May 2014, data were collected from 198 patients. Chemotherapy-induced nausea occurred in 35.4% of patients, and CIV occurred in 31.3%. Chemotherapy-induced nausea was significantly associated with poor sleep quality (odds ratio [OR], 2.48; 95% confidence interval [CI], 1.13–5.46; p = 0.024) and pretreatment nausea (OR, 4.81; 95% CI, 1.84–12.62; p = 0.001). Likewise, CIV was significantly associated with poor sleep quality (OR, 2.64; 95% CI, 1.21–5.78; p = 0.015) and pretreatment nausea (OR, 3.07; 95% CI, 1.23–7.66; p = 0.016). Conclusions Poor sleep quality increases risk of CINV in patients with breast cancer. Sleep problems should be assessed and considered in the management of CINV.


Journal of Psychosomatic Research | 2017

The associations between insomnia and health-related quality of life in rehabilitation units at 1 month after stroke

Won-Hyoung Kim; Han Young Jung; Ha-Yoon Choi; Chan-Hyuk Park; Eun-Suk Kim; Sook-Joung Lee; Sung-Hwa Ko; Soo-Yeon Kim; Kyung-Lim Joa

OBJECTIVE The principal objective of this study was to investigate the relationship between insomnia and health-related quality of life (HRQoL) during the early stage of stroke rehabilitation. METHODS The subjects were 214 first-time stroke patients admitted to a rehabilitation unit at one of three Korean hospitals. Within 7days after stroke, functions were evaluated using; the Berg Balance Scale, the Modified Barthel Index, the Mini Mental State Examination, the Frontal Assessment Battery, Screening Tests for Aphasia and Neurologic-Communication Disorders, and the National Institute of Health Stroke Scale. Insomnia, depression, anxiety, and HRQoL were investigated at one month after stroke. Insomnia was defined as presence of at least one of the four following; difficulty initiating sleep, difficulty maintaining sleep, early morning awakening, and non-restorative sleep. HRQoL was assessed using the Short Form Health survey SF-8. Depression and anxiety were measured using the Hospital Anxiety Depression Scale. Multivariate linear regression analysis was conducted to examine the association between insomnia and HRQoL. RESULTS The prevalence of insomnia at one month after stroke was 59.5%. Patients with insomnia were more likely to be older and female and to have depression and anxiety. Patients with insomnia had poorer physical and mental HRQoL. By multivariate analyses, physical HRQoL was significantly associated with type of stroke, hypnotic usage, balancing function, and insomnia. Mental HRQoL was significantly associated with balancing function, depression, and insomnia. CONCLUSION Insomnia was found to be negatively associated with physical and mental HRQoL in stroke patients during the early stage of rehabilitation.


Psychiatry Investigation | 2015

Stigma of Mental Illnesses as Perceived by North Korean Defectors Living in South Korea

Ji-Hoon Ahn; Won-Hyoung Kim; Hye-Jin Choi; Jin-Yong Jeon; In-Gyu Song; Jae Nam Bae

Objective This study aims to provide the information of the stigmas of mental illness such as psychosis, alcoholism, attempt suicide, and depression among North Korean defectors. Methods We examined stigma for the mental illnesses of 639 North Korean defectors aged 19 to 65 years who live in the Settlement Support Center for North Korean Refugees. The stigmas of mental illnesses were assessed using the Perceived Devaluation-Discrimination Scale We directly compared the stigma level between North Korean defectors and the general population of South Korea. Results North Korean defectors had higher perceived stigmas of psychosis and alcoholism and lower perceived stigmas of depression than South Koreans. Perceived stigma associated with attempted suicide was similar for North Korean defectors and South Koreans. Only marital status in sociodemographic variables had associations with higher perceived stigma of psychosis, alcoholism, and depression in the North Korean defectors. North Korean defectors, who spent more than one year in transit country, had associations with lower perceived stigma of psychosis and alcoholism. North Korean defectors, who had the experience of compulsory repatriation to North Korea or North Korean family in South Korea, had an association with higher perceived stigma of depression. Conclusion North Korean defectors had higher perceived stigmas of psychosis and alcoholism and lower perceived stigmas of depression than South Koreans. Further studies are needed to document serial changes in stigmas for mental illnesses associated with the receipt of education at the Settlement Support Center for North Korean defectors.

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Maeng-Je Cho

Seoul National University Hospital

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Sung-Man Chang

Kyungpook National University Hospital

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Bong-Jin Hahm

Seoul National University Hospital

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Byung-Soo Kim

Seoul National University

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Dooyoung Jung

Ulsan National Institute of Science and Technology

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Joo-Young Lee

Seoul National University Hospital

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