The prognostic relevance of pulse wave amplitude drops and pulse transit time changes in obstructive sleep apnoea - 2025 Sleep and Breathing conference

Markers of autonomic dysregulation and other non-hypoxaemia-related markers in obstructive sleep apnoea (OSA)

Chair(s): Esther Irene Schwarz, Martino Pengo

Session type: Symposium

The prognostic relevance of pulse wave amplitude drops and pulse transit time changes in obstructive sleep apnoea

Raphael Heinzer

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Introduction

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The relevance of arousal threshold and loop gain for treatment choice and outcomes in obstructive sleep apnoea (pre-recorded)

Winfried J. Randerath

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The prognostic relevance of pulse wave amplitude drops and pulse transit time changes in obstructive sleep apnoea

Raphael Heinzer

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The prognostic relevance of heart rate variability and delta heart rate in obstructive sleep apnoea

Carolina Lombardi

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Discussion and Q&A

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Session aims

Discussion of newer OSA severity markers and their prognostic relevance and significance in different OSA subtypes. In addition to the apnoea-hypopnoea-index and the hypoxaemia-related markers (oxygen-desaturation-index, time with SpO2 <90%, hypoxemic burden), further physiological signals from sleep studies are available, in particular for autonomic cardiovascular function. Their additional benefits and limitations in certain populations will be demonstrated and critically discussed.

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