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Detection of episodic nocturnal hypercapnia in patients with neurodegenerative disorders

Purpose Episodic nocturnal hypercapnia (eNH) in transcutaneous carbon dioxide pressure (PtcCO 2 ) corresponding to rapid eye movement sleep hypoventilation is a useful biomarker for detecting nocturnal hypoventilation. However, the relationship between eNH and neurodegenerative diseases with sleep-r...

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Bibliographic Details
Published in:Sleep & breathing 2024-03, Vol.28 (1), p.393-399
Main Authors: Naito, Hiroyuki, Sugimoto, Takamichi, Kimoto, Kazuki, Abe, Takafumi, Ohno, Narumi, Giga, Mayumi, Kono, Tomoyuki, Ueno, Hiroki, Nomura, Eiichi, Maruyama, Hirofumi
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Language:English
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Summary:Purpose Episodic nocturnal hypercapnia (eNH) in transcutaneous carbon dioxide pressure (PtcCO 2 ) corresponding to rapid eye movement sleep hypoventilation is a useful biomarker for detecting nocturnal hypoventilation. However, the relationship between eNH and neurodegenerative diseases with sleep-related breathing disorders (SRBDs) is unknown. The aim of this study was to evaluate the relationship between eNH and nocturnal hypoventilation in neurodegenerative diseases. Methods Patients with neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), multiple system atrophy (MSA), Parkinson’s disease, progressive supranuclear palsy, corticobasal syndrome, and idiopathic normal pressure hydrocephalus, were enrolled and received overnight PtcCO 2 monitoring. The patients were divided into groups for eNH and sleep-associated hypoventilation (SH) prevalence analysis: A (ALS), B (MSA), and C (others). Results Among 110 patients, twenty-three (21%) and 10 (9%) of the patients met eNH and SH criteria, respectively. eNH and SH were significantly more frequent in groups A and B than in C. The prevalence of SH in the patients with eNH was 39% whereas most of patients with SH (90%) presented with eNH. Among patients with daytime carbon dioxide pressure in arterial blood ≤ 45 mmHg, eNH frequency was 13%, whereas none of the patients met SH criteria. The frequency of noninvasive positive pressure ventilation after PtcCO 2 monitoring was significantly higher in those with than without eNH. Conclusions eNH is common in patients with MSA and ALS who present with SRBD. eNH with overnight PtcCO 2 monitoring is a useful biomarker to detect hypoventilation among neurodegenerative diseases with different SRBD mechanisms.
ISSN:1520-9512
1522-1709
DOI:10.1007/s11325-023-02876-3