• 수면정신생리
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• 제20권1호
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• pp.35-40
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• 2013

목 적: 임상실제에서 하지불안증후군(restless legs syndrome, RLS) 환자들의 수면다원검사 결과의 특징과 약물치료의 현황을 자연적인 후향성 연구로 조사하는 것이다. 방 법: 임상적으로 RLS의 진단기준을 만족하며 수면다원검사를 시행 받고 치료받은 18세 이상 환자들의 의무기록을 검토하여 분석하였다. 대상자들에 대해 초진시 International Restless Legs Syndrome Study Group(IRLSSG)의 4가지 진단기준과 국제하지불안척도(International Restless Legs Scale, IRLS)를 평가하고 야간수면다원검사와 제안부동검사(suggested immobilization test, SIT)를 시행하였고, 도파민효현제로 한 달간 약물치료 후 IRLS를 재평가하였다. 결 과: 분석에 포함된 총 대상자수는 211명으로 남자가 94명(44.5%), 여자가 117명(55.5%)이었고 평균연령은 46.9세였다. 폐쇄성수면무호흡증이 136명(64.5%), PLMD가 53명(25.1%)에서 동반되어 다른 수면장애를 동반한 환자의 수는 185명(87.7%)이었다. 수면다원검사결과 수면효율은 78.0%, 수면중각성시간(wake after sleep onset)는 86.8분, N3는 3.4%였다. 평균 무호흡저호흡지수(apnea hypopnea index)는 시간당 12.4회, PLMS는 시간당 14.8회, SIT 중 PLMW는 시간당 41.2회였다. 수면중 총 각성지수는 시간당 21.6회였다. 전체 환자 중 ropinirole을 복용한 환자는 149명(70.6%), pramipexole을 복용한 환자수는 47명(22.3%)이었고 ropinirole은 평균 0.9 mg(용량범위 0.125~5 mg), pramipexole은 평균 0.5 mg(용량범위 0.125~4 mg)을 사용하였다. Ropinirole의 용량은 연령과 유의한 양의 상관관계를 보였고(r=0.25, p=0.002), IRLS와도 유의한 양의 상관관계를 보였다(r=0.23, p=0.038). IRLS는 초진시 24.9점에서 1달 뒤 13.4점으로 감소하였다. 결 론: 본 연구의 분석결과 임상적으로 RLS 진단이 가능한 환자 중에 다른 수면장애를 동반하는 경우가 대다수였다. PLMD에 해당되는 사람은 25.1%로 기존 보고보다 적었고 평균 PLMS도 시간당 14.8회로 높지 않았다. 사용하는 도파민효현제의 용량은 한국에서 허가용량으로 승인받은 용량보다 더 높은 경우가 많았다. 향후 이 주제에 대한 전향적이고 통제된 대규모의 연구가 필요하다.

• Annals of Clinical Neurophysiology
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• 제19권2호
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• pp.131-135
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• 2017

Background: Neuromuscular ultrasound can be used to assess the diaphragm. Before it can be used clinically, the reference ranges of diaphragm thickness and contractility must be determined. Methods: We measured the thickness of the diaphragm and the diaphragmatic thickening fraction (DTF) in 80 healthy volunteers with ultrasound and collected their demographic information to determine if age, sex, and body mass index (BMI) influence these measures. Results: The thickness of the diaphragm at resting end expiration was $0.193{\pm}0.044cm$ on the right side and $0.187{\pm}0.039cm$ on the left. The DTF was $104.8{\pm}50.6%$ on the right side and $114.9{\pm}49.2%$ on the left. Sex, weight, height, and BMI significantly affected the thickness of the diaphragm, but had little effect on the DTF. Conclusions: Normal reference values for the diaphragm should be helpful when evaluating the diaphragm. The DTF appears more useful than resting diaphragm thickness because it is affected less by individual variation.

• Clinical and Experimental Pediatrics
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• 제50권8호
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• pp.711-717
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• 2007

Sleep is a vital, highly organized process regulated by complex systems of neuronal networks and neurotransmitters. Normal sleep comprises non-rapid eye movement (NREM) and REM periods that alternate through the night. Sleep usually begins in NREM and progresses through deeper NREM stages (2, 3, and 4 stages), but newborns enter REM sleep (active sleep) first before NREM (quiet sleep). A period of NREM and REM sleep cycle is approximately 90 minutes, but newborn have a shorter sleep cycle (50 minutes). As children mature, sleep changes as an adult pattern: shorter sleep duration, longer sleep cycles and less daytime sleep. REM sleep is approximately 50% of total sleep in newborn and dramatically decreases over the first 2 years into adulthood (20% to 25%). An initial predominant of slow wave sleep (stage 3 and 4) that peaks in early childhood, drops off abruptly after adolescence by 40% from preteen years, and then declines over the life span. The hypothalamus is recognized as a key area of brain involved in regulation of sleep and wakefulness. The basic function of sleep largely remains elusive, but it is clear that sleep plays an important role in the regulation of CNS and body physiologic processes. Understanding of the architecture of sleep and basic mechanisms that regulate sleep and wake cycle are essential to evaluate normal or abnormal development of sleep pattern changes with age. Reduction or disruption of sleep can have a significant impact on daytime functioning and development, including learning, growth, behavior, and emotional regulation.

• 영어영문학
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• 제55권3호
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• pp.441-458
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• 2009

The Imperial Road is Jean Rhys s unfinished manuscript, rejected by publishers for its openly racist tone. Although it describes Rhys s actual visit to Dominica in 1936, it is not a transparent recollection of the travel but a recreation informed by racial dynamics of the 1970s when she wrote the text. This paper examines the manuscript as a troubled (and troubling) response to what Rhys perceived as racial rejection from Dominica at the wake of political independence. Rhys s representation of white Creole womanhood significantly depends on an interwoven configuration of racial dynamics and sexual politics, where an oppressive white European man facilitates a white Creole woman s cross-racial identification with Afro-Caribbeans. However, the political and literary landscape of the West Indies in the 1970s made such cross-racial identification untenable. As a result, The Imperial Road is full of disturbing racial hatred, prejudice, and resentment. And yet, it also reflects Rhys s honest and serious concern over a white Creole s racial identity in postcolonial Dominica, raising a difficult question: How would a postcolonial age change a white Creole identity that belongs neither to the colonized nor to the colonizer (or both)? In The Imperial Road, unable to identify with Afro-Caribbeans, the white Creole is disoriented in time and space, lost at home, stuck between the past and the present, not knowing how to participate in a postcolonial homeland. Through the narrator s racial disorientation, The Imperial Road exposes the white Creole s fundamental dependence on other Creoles.

• Journal of Preventive Medicine and Public Health
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• 제53권1호
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• pp.37-44
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• 2020

Objectives: This study investigated the effects of comorbid sleep disorders (SD) on the incidence of cardiovascular complications among newly-diagnosed hypertension (HTN) patients. Methods: As study population, 124 057 newly-diagnosed essential HTN patients aged 30 or older, without cardiovascular complications at diagnosis with HTN, were selected from the National Health Insurance Service-National Sample Cohort. The incidence of cardiovascular complications was calculated, Cox proportional-hazards regression model was used to analyze the risk of complications, and the population attributable fraction (PAF) for cardiovascular complications of having comorbid SD at HTN diagnosis was calculated. Results: Over 10 years, 32 275 patients (26.0%) developed cardiovascular complications. In HTN patients with comorbid SD at diagnosis of HTN, the incidence of cardiovascular complications (78.3/1000 person-years; 95% confidence interval [CI], 75.8 to 80.9) was higher than in those without comorbid SD (58.6/1000 person-years; 95% CI, 57.9 to 59.3) and the risk of cardiovascular complications was 1.21 times higher (95% CI, 1.17 to 1.25), adjusting for age, gender, income, area of residence, and comorbid diabetes mellitus. The PAF of having comorbid SD at diagnosis of HTN for the incidence of cardiovascular complications was 2.07% (95% CI, 1.69 to 2.44). Conclusions: Newly-diagnosed essential HTN patients aged 30 or older who had comorbid SD at the time of their HTN diagnosis had a higher incidence of cardiovascular complications than those without comorbid SD. Age, gender, income, area of residence, and comorbid diabetes mellitus had a significant effect on the incidence of cardiovascular complications. Approximately 2% of cardiovascular complications were found to occur due to the presence of SD.

• Clinical and Experimental Vaccine Research
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• 제13권3호
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• pp.218-224
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• 2024

Purpose: Sleeping disorders were reported in many patients who took vaccines during previous pandemics. We aim to investigate the relationship between coronavirus disease 2019 (COVID-19) vaccines and the incidence of narcolepsy symptoms in the Jordanian population. Materials and Methods: We used a descriptive, cross-sectional, online self-administered survey conducted between December 2022 and May 2023. The survey targeted males and females above the age of 18 years who took any type of COVID-19 vaccine, had no chronic diseases, and had no sleep disorders prior to taking the vaccine. The survey was distributed via social media platforms. Results: A total of 873 participants were included in this study, consisting of 44.4% males and 55.6% females, with the majority being in the 18-29 age group. Most participants (79.8%) received two vaccine doses, with the Pfizer vaccine being the most common. Nearly half of the participants reported excessive daytime sleepiness. Sleep paralysis and hypnagogic hallucinations were reported by a notable proportion of participants, but no significant differences were found among the vaccine types. Sleep attacks and fragmented nighttime sleep were associated with the number of vaccine doses received, suggesting a possible influence of the dose count on these symptoms. The presence of excessive daytime sleepiness, sudden loss of muscle tone, sleep paralysis, and hypnagogic hallucinations showed no significant association with the number of doses taken. Conclusion: We hypothesize a possible link between COVID-19 vaccination and the emergence of narcolepsy symptoms in Jordanian individuals. Additional investigations and continuous monitoring to determine the extent of the risk and uncover potential mechanisms behind this connection should be performed.

• 수면정신생리
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• 제3권1호
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• pp.47-55
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• 1996

Narcolepsy is characterized by sleep attack with excessive daytime sleepiness(EDS), cataplexy, sleep paralysis, and hypnagogic hallucination. Paradoxically, narcoleptics tend to complain of frequent arousals and shallow sleep during the night time despite their excessive sleepiness. However, nocturnal sleep fragmentation in narcoleptics is relatively ignored in treatment strategies, compared with sleep attack/EDS and cataplexy. In our paper, we attempted to investigate further on the poor nocturnal sleep in narcoleptics and to discuss possible treatment interventions. Out of consecutively seen patients at Seoul National University Sleep Disorders Clinic and Division of Sleep Studies, we recruited 57 patients, clinically assessed as having sleep attack and/or EDS. Nocturnal polysomnography and multiple sleep latency test(MSLT) were done in each of the subjects. We selected 19 subjects finally diagnosed as narcolepsy(mean age $26.0{\pm}18.3$ years, 16 men and 3 women) for this study, depending on the nocturnal polysomnographic and MSLT findings as well as clinical history and symptomatology. Any subject co-morbid with other hypersomnic sleep disorders such as sleep apnea or periodic limb movements during sleep was excluded. Sleep staging was done using Rechtschaffen and Kales criteria. Sleep parameters were calculated using PSDENT program(Stanford Sleep Clinic, version 1.2) and were compared with the age-matched normal values provided in the program. In narcoleptics, compared with the normal controls, total wake time was found to be significantly increased with significantly decreased sleep efficiency(p<.01, p<.05, respectively), despite no difference of sleep period time and total sleep time between the two groups. Stage 2 sleep%(p<.05), slow wave sleep%(p<.05), and REM sleep%(p<.01) were found to be significantly decreased in narcoleptics compared with normal controls, accompanied by the significant increase of stage 1 sleep%(p<.01). Age showed negative correlation with slow wave sleep%(p<.05). The findings in the present study indicate significant fragmentation of nocturnal sleep in narcoleptics. Reduction of REM sleep% and the total number of REM sleep periods suggests the disturbance of nocturnal REM sleep distribution in narcoleptics. No significant correlations between nocturnal polysomnographic and MSLT variables in narcoleptics suggest that nocturnal sleep disturbance in narcoleptics may be dealt with, in itself, in diagnosing and managing narcolepsy. With the objective demonstration of qualitative and quantitative characteristics of nocturnal and daytime sleep in narcoleptics, we suggest that more attention be paid to the nocturnal sleep fragmentation in narcoleptics and that appropriate treatment interventions such as active drug therapy and/or circadian rhythm-oriented sleep hygiene education be applied as needed.

• 수면정신생리
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• 제9권1호
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• pp.24-33
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• 2002

목 적 : 폐쇄성 수면무호흡증(이하 수면무호흡증) 환자에서 고혈압이 흔히 병발되나 지속적 상기도 양압술(이하 양압술)에 따른 고혈압 해소 정도는 연구방법에 따라 상이한 결과를 보이고 있다. 이에 저자들은 지속적-비관혈적 혈압 측정법을 이용하여 기초 혈압치가 다양한 수면무호흡증 환자군에서 양압술을 적용하면서 야간 수면중 혈압 및 심박 동수 반응에 양압술이 미치는 영향을 연구하고자 하였다. 또한 양압술에 의한 혈역학적 변화에 영향을 줄 수 있는 요인들을 찾고자 하였다. 방 법 : 연구대상으로는 수면무호흡증의 임상 증상을 지니고 있으며 기초 측정일의 야간 수면다원검사 결과 호흡장애지수가 5이상인 환자 10명(평균연령 52.2$\pm$12.4세, 남자 9명, 여자 1명)을 선택하였다. 양압술을 시행하지 않은 상태인 기초 측정일과 양압술을 시행한 양압술 시행일 모두에서 야간 수면다원기록과 동시에 지속적-비관혈적 혈압측정기($Finapres^{(R)}$)를 사용하여 매 박동(beat-to-beat)시의 수축기 혈압, 이완기 혈압, 그리고 심박동수를 측정하였다. 또한 매 2초마다 혈중산소포화도($SaO_2$)를 측정하였다. 기초 측정일과 양압술 시행일 두 군간에 혈역학적 및 호흡기적 변인들의 평균치를 비교하였다. 기초 측정일 값에서 양압술 시행일 값을 뺀 수축기 혈압 델타값 및 이완기 혈압 델타값 각각과 기초 측정일의 측정치들(수축기 혈압, 이완기 혈압, 그 각각의 혈압 변이도, 심박동수 및 심박동수 변이도, 혈중산소포화도 평균치, 그리고 호흡장애지수), 양압술 시행일의 측정치들(양압술 처방압력 및 총 각성시간 분율), 연령, 그리고 비만도 간의 상관관계를 분석하였다. 결 과 : 1) 혈중 산소포화도의 평균치와 호흡장애지수가 기초 측정일에 비해 양압술 시행일에서 각각 증가(p<.01) 및 감소(p<.01)하였으나, 혈역학적 변인을 포함한 다른 비교 변인들에서는 차이가 없었다. 2) 기초 측정일의 혈압에서 양압술 시행일의 혈압을 뺀 델타값들을 분석한 결과 기초 측정일의 혈압치와 대상군의 연령에 따라 혈압 반응이 차별적으로 나타났다. 수축기 혈압 델타값과 기초 측정일의 수축기 혈압간에 유의한 정적 상관관계를 보였으나(p<.01), 이완기 혈압 델타값과 기초 측정일의 이완기 혈압간에는 각성기(p<.01)를 제외한 다른 수면단계에서 유의한 상관관계가 없었다. 렘수면단계를 제외한 모든 수면단계에서 이완기 혈압의 델타값과 연령 사이에 유의한 역 상관관계가 있었지만(p<.05), 수축기 혈압의 델타값과 연령 간에는 유의한 상관관계가 없었다. 3) 수축기 혈압 델타값 및 이완기 혈압델타값 각각과 기초 측정일의 측정치들, 양압술 시행일의 측정치들, 그리고 비만도 간의 상관관계를 분석한 결과, 이완기 혈압 델타값과 양압술 시행일의 각성시간 분율간의 유의한 정적 상관관계(p<.01) 외에는 유의한 상관관계가 없었다. 결 론 : 양압술 적용에 따라 수축기 혈압 델타값과 이완기 혈압 델타값이 기초 측정일의 수축기 혈압치와 대상군의 연령에 따라 각각 증가 또는 감소하였다. 따라서, 본 연구는 양압술에 따른 혈압 반응은 단순 감소로 나타나는 것이 아니라 여러 변인의 조건에 따라 차별적 혈압 반응 양상으로 나타나는 복합적인 현상이며 앞으로 좀더 세밀하게 연구되어야 할 대상임을 시사한다.

• Tuberculosis and Respiratory Diseases
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• 제60권1호
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• pp.76-82
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• 2006

연구배경 : 수면설문조사가 환자의 수면과 관련된 문제점을 파악하고 수면다원검사의 시행을 필요로 하는 환자를 선별하는 검사로써 임상적 유용성이 있는지 여부를 알아보고자 하였다 방 법 : 가톨릭대학교 성바오로병원 수면장애 클리닉에 의뢰되어 수면다원검사와 수면설문조사를 시행한 환자 를 대상으로, 수면설문조사에 포함되어 있는 환자의 일반적 특성, 병력, 수면-각성주기 동안의 행동, 코골이, 수면과 관련된 호흡장애 및 주간 졸음증과 관계된 증상 등 각각의 항목과 수면다원검사의 각 지표를 비교 분석하였다. 결 과 : 전체 환자수는 1081명으로 남자 849명, 여자 232명이었고 나이는 $44.2{\pm}12.8$세였다. AHI<5인 군은 38 .9%, $5{\leq}AHI<20$는 27.9%, $20{\leq}AHI<40$는 13.2% 그리고$AHI{\geq}40$는 20.0%였다. 검사를 시행하게 된 주된 동기는 코골이(91.7%), 무호흡(74.5%), 주간 졸음증(8.0%), 불면증(4.3%), 이갈이(1.1%), 집중력 장애(0.5%)였다. 수면 중 깨는 횟수는 평균 1.6회 였으며 그 이유는 소변을 보기 위함이 46.3%로 가장 많았다. Epworth Sleepiness Scale과 무호흡-저호흡지수(AHI)는 상관관계가 있었다(r=0.209, p<0.01). 수면설문 조사 항목 중 코골이, 주간 졸음증, 수면 후 각성 상태의 중증도에 따른 각 군간의 평균 AHI는 통계적으로 유의한 차이를 보였다. 결 론 : 수면설문조사에서 나타나는 ESS, 코골이, 주간 졸음증이나 수면 후 각성 상태 등 주관적 임상증상의 중증도는 수면다원검사 결과의 수면 무호흡의 중증도와 유의한 상관관계가 있음을 관찰할 수 있었다. 따라서 수면설문조사는 환자의 수면장애 특히 수면과 관련된 호흡장애의 정도를 예측하는데 유용하게 이용될 수 있을 것으로 생각한다.

• 복식
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• 제57권8호
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• pp.89-98
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• 2007

Women are playing an increasing role in the society amid the increase in the age at first marriage, reduced family size, and the weakening solidarity among family members. Gold Miss is a newly coined word which reflects the change in the value of women in the wake of the individualism and pluralism amid the structural change. Gold Miss means a new X generation that is sensitive to the latest fashion and trend with high purchasing power and self-attainment goal. They do not spare any effort to invest in themselves, lead the new culture and set the cultural trend that goes beyond the simple consumption, and come into the spotlight both socially and economically. The outcome of the analysis on the Gold Miss fashion which was revealed in the mass media indicated that the fashion was the instrument to express their own images and personalities. Though they may be some difference depending on the occupation, personality, values, and others, they pursue sophisticated, intellectual, and emotional office-look that takes the trend and personality into account. In addition, they prefer business casual attire, and pursue the total fashion with perfection which uses the gorgeous bright and vivid color, daring color, accent color arrangement and accessories. The Gold Miss fashion implies the self-identity, high-end feature, and embody the symbolism of information, which the analysis on the feature and fashion of Golden Miss indicated.