WordNet

provide with an index; "index the book"
a numerical scale used to compare variables with one another or with some reference number
the finger next to the thumb (同)index_finger, forefinger
a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time (同)index_number, indicant, indicator
an alphabetical listing of names and topics along with page numbers where they are discussed
adjust through indexation; "The government indexes wages and prices"
list in an index
slow or shallow breathing
the act of classifying and providing an index in order to make items easier to retrieve
transient cessation of respiration

PrepTutorEJDIC

(本・雑誌などの)『索引』;図書目録 / 指し示すもの,印 / (計器などの)指針 / 指数・虜 / 《the I-》(カトック教会の)禁所目録 / 〈本など〉‘に'索引をつける / 〈語など〉‘を'索引に載せる

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/11/04 01:11:21」(JST)

wiki en

The Apnea–Hypopnea Index or Apnoea–Hypopnoea Index (AHI) is an index used to indicate the severity of sleep apnea. It is represented by the number of apnea and hypopnea events per hour of sleep. The apneas (pauses in breathing) must last for at least 10 seconds and are associated with a decrease in blood oxygenation. Combining AHI and oxygen desaturation gives an overall sleep apnea severity score that evaluates both number sleep disruptions and degree of oxygen desaturation (low blood level).

The AHI is calculated by dividing the number of apnea events by the number of hours of sleep. AHI values are categorized as:^[1]^[2]

Normal: 0-4
Mild Sleep Apnea: 5-14
Moderate Sleep Apnea: 15-29
Severe Sleep Apnea: 30 or more

Risks associated with high AHI

Research shows that individuals suffering from obstructive sleep apnea are at a higher risk of other health comorbidities, including:

Acute myocardial infarction/heart attack (OSA presents in 70% of heart attack patients with AHI ≥5 and 52% of heart attack patients with AHI ≥10)^[3]
Stroke (in patients with AHI ≥30 macroangiopathic etiology of stroke were significantly higher than in patients with AHI <10)^[4]

References

^ "Understanding the Results: Sleep Apnea". Retrieved 5 September 2014.
^ Ruehland WR, Rochford PD, O'Donoghue FJ, Pierce RJ, Singh P, Thornton AT (1 February 2009). "The new AASM criteria for scoring hypopneas: impact on the apnea hypopnea index". Sleep 32 (2): 150–7. PMC 2635578. PMID 19238801.
^ Kuniyoshi et al. (July 2008). "Day–Night Variation of Acute Myocardial Infarction in Obstructive Sleep Apnea". Journal of the American College of Cardiology 52 (5): 343–346. doi:10.1016/j.jacc.2008.04.027.
^ Claudio L. Bassetti, Milena Milanova, Matthias Gugger (6 March 2006). "Sleep-Disordered Breathing and Acute Ischemic Stroke: Diagnosis, Risk Factors, Treatment, Evolution, and Long-Term Clinical Outcome". Stroke 37: 967–972. doi:10.1161/01.STR.0000208215.49243.c3.

This medical diagnostic article is a stub. You can help Wikipedia by expanding it.

This respiratory system article is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 成人での睡眠呼吸障害の評価における睡眠ポリグラフ polysomnography in the evaluation of sleep disordered breathing in adults
2. 小児における閉塞性睡眠時無呼吸疑いの評価 evaluation of suspected obstructive sleep apnea in children
3. 中枢型睡眠無呼吸症候群を有する成人患者における陽圧呼吸調整法のモード選択 mode selection for positive airway pressure titration in adult patients with central sleep apnea syndromes
4. 成人における閉塞性睡眠時無呼吸の臨床症状および診断 clinical presentation and diagnosis of obstructive sleep apnea in adults
5. 睡眠医学の最新情報 whats new in sleep medicine

English Journal

Effect of mild hyperglycemia on autonomic function in obstructive sleep apnea.

Peltier AC, Bagai K, Artibee K, Diedrich A, Garland E, Elasy T, Shi Y, Wang L, Feldman EL, Robertson D, Malow BA.SourceDivision of Neuromuscular Disorders, Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA, amanda.peltier@vanderbilt.edu.
Clinical autonomic research : official journal of the Clinical Autonomic Research Society.Clin Auton Res.2012 Feb;22(1):1-8. Epub 2011 Jul 28.
INTRODUCTION: Obstructive sleep apnea (OSA) has been hypothesized to cause a hypersympathetic state, which may be the mechanism for the increased incidence of cardiovascular disease in OSA. However, there is a high prevalence of hyperglycemia in OSA patients, which may also contribute to autonomic d
PMID 21796355

Assessment of left atrial dysfunction in obstructive sleep apnea patients with the two dimensional speckle-tracking echocardiography.

Altekin RE, Yanikoglu A, Karakas MS, Ozel D, Kucuk M, Yilmaz H, Demir I.SourceDepartment of Cardiology, Faculty of Medicine, Akdeniz University, Dumlupinar Bouleward, Konyaalti, 07070, Antalya, Turkey, dremre29@yahoo.com.
Clinical research in cardiology : official journal of the German Cardiac Society.Clin Res Cardiol.2012 Jan 6. [Epub ahead of print]
BACKGROUND: The aim of this study was to compare left atrial (LA) longutidinal myocardial function in obstructive sleep apnea (OSA) patients with healthy individuals using two-dimensional speckle-tracking echocardiography method (2D-STE).METHOD: Twenty one healthy individuals and 58 OSA patients wer
PMID 22222546

Japanese Journal

Maxillary Advancement for Unilateral Crossbite in a Patient with Sleep Apnea Syndrome

Acta Medica Okayama 69(3), 177-182, 2015-06
NAID 120005621912

ポスター講演呼吸音による無呼吸低呼吸指数予測モデルの分析 (音声)

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(475), 225-230, 2015-03-02
NAID 40020432230

ポスター講演呼吸音による無呼吸低呼吸指数予測モデルの分析 (信号処理)

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(474), 225-230, 2015-03-02
NAID 40020431846

Related Pictures

Obstructive Sleep Apnea and Depression: A Review Guide on Sleep Apnea and Sleep Apnea treatment options Obstructive Sleep Apnea (OSA) Sleep apnea ABCs: Airway, breathing, circulation | Cleveland Clinic Journal of Medicine Is Sleep Apnea a Disability? How to CRUSH The “Ratings” NOW! Polysomnography, Sleep Study Results, Obstructive Sleep Apnea, and other things Can Snoring Harm Your Health?