apnoe screening

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Apnoe Screening

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Atmung Herzvektor

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Das EDR Signal – ECG Derived Respiration

ZOOM

EDR

Herzfrequenz

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Apnoe Screening

Automated detection of obstructive sleep apnoea at different time scales using the electrocardiogramPhilip de Chazal, Thomas Penzel and Conor Heneghan

Physiological Measurement 25 (2004) 967-983

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• 10 Hz Resampling

• FIR Filter fg = 1 Hz

High-Resolution EDR

EDR Basics

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Quantifizierung der Atmungstätigkeit

Hilbert TransformationH(EDR) = abs(EDR * 1/(π*t))

Vogelperspektive

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Respiration Activity Overview

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Apnoe Screening

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Obstruktive Schlaf Apnoe

OSA has been associated with severalcardiovascular diseases, most notablyhypertension, ischemic heart disease,

heart failure, stroke, cardiac arrhythmias,and pulmonary hypertension.

Sleep-Disordered Breathing and Cardiovascular DiseaseRobert Wolk, MD, PhD; Tomas Kara, MD; Virend K. Somers, MD, PhD(Circulation. 2003;108:9-12)

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“Traditional” Holter

Arrhythmias

HolterRecording

treatArrhythmias

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Arrhythmias

HolterRecording

treatArrhythmias

?

treatCause of

Arrhythmia

”Beyond” Holter

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OSA as Cause of Arrhythmias

ArrhythmiasOSA

treatOSA/SAS

Medilog ARAdvanced Holter

Recording

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OSA Arrhythmien

• Sinus arrest

• SA Block

• AV Block

Pausen,

Bardykardie

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Arrhythmia Apnea

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Regulation ?