• 수면정신생리
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• 제23권2호
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• pp.97-99
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• 2016

Positive airway pressure (PAP) is currently recommended as a primary treatment for obstructive sleep apnea syndrome (OSAS) and positively affects various subjective and objective parameters related to OSAS, such as the apnea-hypopnea index, excessive daytime sleepiness, and blood pressure. However, PAP also exhibits various adverse effects, including skin breakdown, pressure intolerance, claustrophobia, unintentional mask removal, mouth leaks, and dryness. Especially, unintentional mask removal due to nasal obstruction may result in poor PAP compliance. A 47-year-old male patient with severe OSAS who had low PAP compliance due to nasal obstruction underwent nasal surgery. After the surgery, nasal obstruction was corrected and the patient experienced improved PAP compliance (from 30.4% to 86.7%). This case demonstrates that nasal surgery may be useful for improving PAP compliance in OSAS patients with nasal obstruction.

• 대한한방내과학회지
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• 제22권4호
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• pp.743-747
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• 2001

Hepatic encephalopathy is caused by disorders affecting the liver. The exact cause of the disorder is unknown. It occurs changes in mental state, consciousness, behavior, personality and changes in mood include forgetfulness, confusion, disorientation, delirium, dementia, decreased alertness, daytime sleepiness, decreased responsiveness, progressive stupor, coma. As 3 admission patients into oriental hospital of daejeon university include 2 cases of cerebral infarction, 1 case of liver cirrhosis, we found those are all hepatic encephalopathy. But until the diagnosis is made, we have many mistakes to find correct. Among the mistackes, specialy mixed thing is to compare hepatic encephalopathy and cerebral infarction. So, we report these cases with a brief review of related literatures.

• 대한한방내과학회지
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• 제38권1호
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• pp.20-31
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• 2017

Objectives: This study investigated the effect of SM-2015 on blood alcohol clearance and hangover. We undertook this study to test whether SM-2015 is effective in decreasing blood alcohol concentration and preventing the symptoms of alcohol-induced hangover. Methods: Twenty healthy volunteers participated in this randomized crossover study. All participants were classified between an SM-2015 intake group (test group) and a non-intake group (control group). The primary outcome measure was the difference in blood alcohol concentration and hangover severity scores between the test and control groups. The secondary outcome measure was the difference in a liver function test (LFT) between the test and control groups. Results: After alcohol exposure, the sensitivity scores of blood alcohol concentration and hangover symptoms (sleepiness, dizziness, nausea, weakness, stomach pain, diarrhea, and concentration disorder) were significantly decreased in the SM-2015 intake group compared with the non-intake group. There were no differences in the LFT results between the SM-2015 intake group and the non-intake group. Conclusions: SM-2015 is effective in decreasing blood alcohol concentration and preventing the symptoms of alcohol-induced hangover. Larger studies are required to confirm these findings.

• 대한임상검사과학회지
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• 제39권3호
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• pp.264-270
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• 2007

Obstructive sleep apnea syndrome (OSAS) is defined by sleep apnea with decreased oxygen saturation, excessive snoring with daytime sleepiness, and frequent awakening during the night time sleep. The present study was performed to investigate how apnea-hypopnea, that possibly causes breathing disturbance during sleep, can affect sleep pattern in patients with OSAS. We included 115 patients (92 men, 23 women) who underwent a polysomnography from January 2006 to May 2007. As the frequency of sleep apnea-hypopnea increases, the proportion of non-rapid eye movement (REM) sleep (p<0.001), and stage I sleep (p<0.001) increased, while that of stage II sleep (p<0.001), stage III and IV sleep (p<0.01), and REM sleep (p<0.05) decreased. Furthermore, sleep apnea-hypopnea was closely correlated with REM sleep (r=0.314, p<0.001), stage I sleep (r=0.719, p<0.001), stage II sleep (p=-0.342, p<0.05), stage III and IV sleep (r=-0.414, p<0.001), and REM sleep (r=-0.342, p<0.05). Stage I sleep could account for the 51% of the variance of apnea-hyponea. Our study shows sleep apnea-hypopnea affects sleep pattern in pattern with OSAS significantly, and the change of stage I sleep is the most important factor in estimating the disturbance of sleep pattern.

• 대한전기학회논문지:시스템및제어부문D
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• 제55권5호
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• pp.240-247
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• 2006

Frequent arousals during sleep degrade the quality of sleep and result in sleep fragmentation. Visual inspection of physiological signals to detect the arousal events is cumbersome and time-consuming work. The purpose of this study is to develop an automatic algorithm to detect the arousal events. The proposed method is based on time-frequency analysis and the support vector machine classifier using single channel electroencephalogram (EEG). To extract features, first we computed 6 indices to find out the informations of a subject's sleep states. Next powers of each of 4 frequency bands were computed using spectrogram of arousal region. And finally we computed variations of power of EEG frequency to detect arousals. The performance has been assessed using polysomnographic (PSG) recordings of twenty patients with sleep apnea, snoring and excessive daytime sleepiness (EDS). We could obtain sensitivity of 79.65%, specificity of 89.52% for the data sets. We have shown that proposed method was effective for detecting the arousal events.

• 환경위생공학
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• 제21권4호
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• pp.1-10
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• 2006

This research is based on self-filling survey which 220 dental hygienists who work in seoul participated on July 2006 through August 2006. This survey was analyzed the experience item and occurred time of the symptoms and the time of acute and vanish of the symptoms that dental office's working environment effects on physical subjective symptom. We suggest a plan to minimizing physical subjective symptom for health manage of dental hygienist. We found out the fact that dental hygienists were unsatisfied with hospital air condition and this polluted air condition cause them physical subjective symptom in work place. As follows analyzed results ventilation time is below the 3-times a day, this may be have some trouble in indoor air quality. The experience the symptoms level is higher then non-experience level in "Fatigue and sleepiness", "Dorsalgia, omarthralgia, cervicodynia", "Hypersensitivity", "Dry eye, itch, smarting", "Headaches" and a subjective symptom is occurred at after 11:00(am) more then 60%, 50% of the dental hygienist. This experience the symptom' pain is vanished after the work and reduced when go out the office and building, respectively. The ratio of the experience the symptoms and starting time the symptoms is anywhere from 12 noon to 4 pm (73.2%) in a day. The time of acute pain the symptoms is anywhere from 12 noon to 4 pm (78.7%) refer to the individual characteristics and work environment.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제4권1호
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• pp.173-178
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• 1993

기면증의 초발연령은 비교적 균일하여 15세 이전, 보통 30세이후에 발병하는 것으로 알려져있다. 저자는 기면증의 4대 증상인 주간의 과도한 졸리움, 탈력 발작, 수면마비 및 입면환각을 보이며 수면다원 검사에 의해 진단된 11세 남아를 경험하였기에 문헌고찰과 함께 이를 보고하고자 한다.

• 해양환경안전학회지
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• 제14권1호
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• pp.77-82
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• 2008

최근 선박충돌사고 또는 좌초사고와 같은 중대한 해양사고를 조사할 때, 사고 관련자의 피로도(Fatigue)가 선박의 안전운항에 부정적인 영향을 미치는 인간과실(Human error) 유발요인으로 작용하여 항해사의 인지능력 및 업무수행능력을 저하시키는 중요한 요인으로 인식되고 있고, 이에 대한 많은 연구가 수행되고 있다. 본 연구에서는 국내 해양사고관련자에 대한 피로도를 체계적으로 조사 분석하기 위한 일환으로 미국연안경비대의 피로도 조사프로그램을 분석하여 국내 해양안전심판원 웹사이트에 조사프로그램을 구현하였으며, 그 결과를 고찰하여 효율적인 피로도조사가 수행 가능하도록 몇 가지 방안을 검토하였다.

• 대한한의학회지
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• 제22권4호
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• pp.101-106
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• 2001

Objectives : Zizyphus seed has long been used in hypnotics and sedatives in oriental medicine, and it is reported that the Zizyphus seed elicited a variety of pharmacological actions besides CNS depression. We did a clinical study on the effectiveness of Zizyphus seed (Ansim-san) for insomnia in stroke patients. Methods : To 41 stroke patients suffering from insomnia, we administered the extract of Zizyphus seed (Ansim-san). Outcome measures were subjective in nature and included a morning questionnaire, visual analog scales, and observation forms by study personnel. We also, to find the applicable symptom-complex of Zizyphus seed (Ansim-san), examined accompanying symptoms. Results : 1. Zizyphus seed extract use meant that sleep latency was shorter, total sleep time was longer, number of wakenings was lower, wake time during sleep was shorter, sleep quality was improved, condition upon awakening was improved, ability to concentrate was improved, and the patients fell asleep more easily (P<0.001). There were no differences in morning sleepiness. 2. Among accompanying symptoms, an oppressed feeling in the chest was significant (P=0.035) in the patients who improved sleep quality. Conclusions : The results of this clinical study suggest that in stroke patients, Zizyphus seed (Ansim-san) can be effective for insomnia, and significantly effective in patients who have an oppressed feeling in the chest.

• 한국멀티미디어학회논문지
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• 제21권3호
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• pp.382-390
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• 2018

A major accident occurring on the bed is falls that occur during at times when the care of nurses or protectors is inadequate, which is fatal to patients or the elderly. In particular, Enuresis or sleepiness caused by sleep apnea increases the risk of falls. Therefore, it is very important to detect falls and sleep apnea of patients without infringing privacy in the bed to patient's safety and accident prevention. In this paper, we reviewed the technologies developed for bed monitoring and implemented a non-intrusive monitoring system. The Occupancy Sensor allows the temperature of the bed and surrounding area to be extracted to enable track of the patient's motion. The Doppler Radar detects the patient's movements at normal times and the respiration state when patients have no movement during sleeping. It is specially designed for real-time monitoring of falling and respiration during sleeping through contactless multi-sensing while solving patient's privacy problems.