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Relationship between the Spectral Power Density of Sleep Electroencephalography and Psychiatric Symptoms in Patients with Breathing-related Sleep Disorder

Kang JM, Cho SE, Lee GB, Cho SJ, Park KH, Kim ST, Kang SG

Objective: Patients with breathing-related sleep disorder (BRSD) often complain of psychiatric symptoms such as depression in addition to snoring, excessive sleepiness, and disturbed sleep. However, the relationship between psychiatric symptoms...
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Assessment of the Test-Retest Reliability of Level III Polysomnography: Comparison of Results Using Difference of Apnea-Hypopnea Index Score and Severity of Obstructive Sleep Apnea

Han BH, Yun JM, Choi IS

Background and Objectives Although studies of test-retest reliability of the standard polysomnography has been reported numerous times, studies of portable sleep devices have been reported in very few cases to...
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Analyses of Corneal Morphology of Patients with Obstructive Sleep Apnea

Park JB, Bang S, Kim TG, Jin KH

Purpose: To analyze the relationship between corneal morphological factors and polysomnographic factors in patients with obstructive sleep apnea (OSA). Methods: In all, 22 eyes of 22 patients with OSA were...
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The Influence of Gastroesophageal Reflux Disease on Daytime Sleepiness and Depressive Symptom in Patients With Obstructive Sleep Apnea

Kang HH, Lim CH, Oh JH, Cho MJ, Lee SH

  • KMID: 2514679
  • J Neurogastroenterol Motil.
  • 2021 Apr;27(2):215-222.
  • doi: 10.5056/jnm20071
Background/Aims As there is insufficient evidence for a relationship between gastroesophageal reflux disease (GERD) and obstructive sleep apnea (OSA), we investigated whether OSA diagnosed by polysomnography (PSG) is related to GERD. Methods A...
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Association of Sleep Perception With Objective and Subjective Sleep Variables in Insomnia Patients

Yoon G, Oh SM, Seo MC, Lee MH, Yoon SY, Lee YJ

Objectives: Our study aims to investigate the clinical and polysomnographic variables associated with subjective sleep perception. Methods: Among the patients who underwent nocturnal polysomnography (PSG) at the Center for Sleep and...
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Descriptive analysis on sleep-disordered breathing in children with Prader-Willi syndrome

Kim JH, Choi YJ, Kim MJ, Park JS, Jeon MJ, Suh DI

Purpose: Sleep-disordered breathing is one of the complicating characteristics in patients with Prader-Willi syndrome (PWS). No detailed description and risk factors are suggested on breathing problems during sleep in Korean...
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Differences in Sleep Apnea Pattern According to Obesity: Clinical Study Using Polysomnographic Data

Park JH, Lee DH

Background: The aim of this study was to compare the patterns of obstructive sleep apnea (OSA) among obese and non-obese Korean adults, using clinical and polysomnographic data obtained for a...
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Snoring Sound Intensity and Formant Frequencies by Sleep Position in Patients with Positional Obstructive Sleep Apnea

Koh TK, Kwon SB, Koo SK, Lee HB, Ji CL, Park GH, Lee SJ

Background and Objectives Snoring is the most common symptom of obstructive sleep apnea (OSA) and is caused by turbulent airflow due to narrowing of the upper airways. In patients with...
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Clinical assessment for obstructive sleep apnea and national health insurance criteria for polysomnography

Kim JK, Kim HJ

Sleep apnea is a sleep disorder that includes symptoms such as snoring and apnea during sleep and daytime drowsiness. This disorder reduces a person’s quality of life and can also...
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Automatic Derivation of Continuous Positive Airway Pressure Settings: Comparison with In-Laboratory Titration

Kim H, Lee M, Hwangbo Y, Yang KI

Background and Purpose This study was designed to investigate differences in the final recommended pressure setting between that derived from an autotitrating continuous positive airway pressure (APAP) device and manual in-laboratory...
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Updates on the Diagnosis and Treatment of Restless Legs Syndrome

Kang SG

Restless legs syndrome (RLS) is a neurological sleep disorder characterized by an urge to move the legs or arms and is associated with discomfort and paresthesia in the legs. RLS...
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Severe Obstructive Sleep Apnea in a 7-Year-Boy with Achondroplasia :A Case Report

Hwang J, Seo JH

Obstructive sleep apnea (OSA) is a sleep-related breathing disorder in which narrowing and obstruction of the upper airway lead to frequent arousal and decreased arterial oxygenation during sleep. OSA is...
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Central Sleep Apnea without Cheyne-Stokes Breathing Following an Acute Cerebral Infarction

Oh HJ, Woo HG, Seok JM, Yang KI

Central sleep apnea (CSA) is attributed to medical or neurological conditions including stroke. The association of lesion location and CSA in patients with ischemic stroke has not been well elucidated....
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Effects of Light on Daytime Sleep in 12 Hours Night Shift Workers: A Field Study

Choi SJ, Park HR, Joo EY

OBJECTIVES: Night shift workers suffer from sleep and daytime disturbances due to circadian misalignment. To investigate the role of environmental light in daytime sleep following 12 h-night shift work. METHODS: We...
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Factors Related to Sleep Time Underestimation in Obstructive Sleep Apnea: Retrospective Study Based on Polysomnographic Data

Hwang KJ, Lee JS, Son HJ, Kim KH, Lee MJ, Kim J

BACKGROUND: The perception of sleep time in obstructive sleep apnea (OSA) is not well understood, some studies have reported that subjects with OSA have abnormal sleep perception. We hypothesized that...
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Analysis of Sleep Questionnaires of Commercial Vehicle Operators in Korea

Song Y, Park HG, Song S, Lee DH, Huh G, Hyun SJ, Choe G, Han SA, Ji JY, Kim JK, Kim HJ

BACKGROUND AND OBJECTIVES: Obstructive sleep apnea (OSA) is highly prevalent in commercial vehicle operators (CMVOs). This study aimed to evaluate the poor sleep quality, daytime sleepiness, and the prevalence of...
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Smart technologies toward sleep monitoring at home

Park KS, Choi SH

With progress in sensors and communication technologies, the range of sleep monitoring is extending from professional clinics into our usual home environments. Information from conventional overnight polysomnographic recordings can be...
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Prediction of Obstructive Sleep Apnea Based on Respiratory Sounds Recorded Between Sleep Onset and Sleep Offset

Kim JW, Kim T, Shin J, Choe G, Lim HJ, Rhee CS, Lee K, Cho SW

OBJECTIVES: To develop a simple algorithm for prescreening of obstructive sleep apnea (OSA) on the basis of respiratorysounds recorded during polysomnography during all sleep stages between sleep onset and offset. METHODS:...
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Clinical Risk Factors for Sleep Apnea in a Korean Sleep Clinic

Do SY, Kim S, Kim KT, Cho YW

BACKGROUND: Sleep apnea is a common sleep disorder. Since polysomnography is essential for the diagnosis of sleep apnea, patient screening or selection is an important issue in the sleep clinic....
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Fast Convolutional Method for Automatic Sleep Stage Classification

Yulita IN, Fanany MI, Arymurthy

OBJECTIVES: Polysomnography is essential to diagnose sleep disorders. It is used to identify a patient's sleep pattern during sleep. This pattern is obtained by a doctor or health practitioner by...
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