OAHE detectes obstructive Apnea/Hypopnea event
[Y,EVENT] = OAHE(X,Fs)
[Y,EVENT] = OAHE(filename,CHAN)
INPUT:
X respiratory channel
Fs sampleing rate
filename source filename
CHAN respiratory channels for calculating OAHE
OUTPUT:
Y detection trace
EVENT event structure as used in BIOSIG
The following commands store the events in an EVENT-file, which can
be visualized with SVIEWER
HDR.FileName = 'filename.evt';
HDR.EVENT = EVENT;
HDR.TYPE = 'EVENT'
HDR=sopen(HDR,'w'); HDR=sclose(HDR);
see also: SVIEWER, SLOAD
REFERENCES:
[1] AASM Task Force. Sleep-Related Breathing Disorders in Adults:
Recommendations for Syndrome Definition, and Measurement Techniques in Clinical Research. Sleep, 22(5), 1999.
[2] Meoli AL, Casey KR, Clark RW, Coleman JA Jr, Fayle RW, Troell RJ, Iber C; Clinical Practice Review Committee.
Hypopnea in Sleep-Disordered Breathing in Adults. Sleep. 2001 Jun 15;24(4):469-70.
[3] Penzel T., Brandenburg U., Fischer J., Jobert M., Kurella B., Mayer G., Nioewerth H.J., Peter J.H., Pollm�her T., Sch�er T., Steinberg R., Trowitzsch E., Warmuth R., Wee�H.-G., W�k C., Zulley J.,
Empfehlungen zur computerunterst�zen Aufzeichnung und Auswertung von Polygraphien. Somnologie, 2, 42-48, 1998.
[4] Ross SD, Sheinhait IA, Harrison KJ, Kvasz M, Connelly JE, Shea SA, Allen IE.
Systematic review and meta-analysis of the literature regarding the diagnosis of sleep apnea. Sleep. 2000 Jun 15;23(4):519-32.
[5] Schafer T. Methodik der Atmungsmessung im Schlaf: Kapneographie zur Beurteilung der Ventilation.
Biomed Tech (Berl). 2003 Jun; 48(6):170-5.
[6] Thurnheer R, Xie X, Bloch KE. Accuracy of nasal cannula pressure recordings for assessment of ventilation during sleep.
Am J Respir Crit Care Med. 2001 Nov 15;164(10 Pt 1):1914-9.
[7] Whitney CW, Gottlieb DJ, Redline S, Norman RG, Dodge RR, Shahar E, Surovec S, Nieto FJ.
Reliability of scoring respiratory disturbance indices and sleep staging. Sleep. 1998 Nov 1;21(7):749-57.
[8] Schl�l A, Kemp B, Penzel T, Kunz D, Himanen SL, Varri A, Dorffner G, Pfurtscheller
G. Quality control of polysomnographic sleep data by histogram and entropy analysis.
Clin Neurophysiol. 1999 Dec;110(12):2165-70.