夜间连续打鼾声的声压级分析：区分简单打鼾与睡眠呼吸暂停

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本文是一篇发表在《耳鼻喉科杂志》(Acta Oto-Laryngologica)上的研究论文，标题为"通过声压级对连续夜间打鼾进行声学分析"。研究的焦点在于探讨了在睡眠过程中，简单打鼾（SS）与阻塞性睡眠呼吸暂停低通气综合症（OSAHS）患者的打鼾声压级参数的差异。作者团队，包括Haoping Hua, Huijie Xu, Zhangao, Weinin Huang和Yuxia He，来自北京同仁医院的耳鼻喉科，他们在中国的患者群体中进行了这项研究。研究的主要目的是克服单次打鼾声声学分析的局限性，通过对连续夜间打鼾声音的声压级进行深入分析，以识别出能够反映睡眠呼吸障碍严重程度的关键指标。研究对象是接受了同步声压级记录和多导睡眠图（PSG）检查的94名患者。研究参数主要包括A-加权等效声级（LAeq）和累积百分位声级10（L10）。LAeq是一种衡量声音强度的标准，它考虑了人耳对不同频率声音的感知差异，因此在评估噪声暴露和睡眠质量时具有临床意义。而L10则代表了在一定时间内的声压水平超过某个阈值的持续时间百分比，这有助于了解打鼾的频度和强度分布情况。论文结论指出，打鼾的声压级参数，特别是LAeq和L10，在简单打鼾和OSAHS患者之间存在显著差异。其中，AHI指数（即每小时睡眠期间的呼吸暂停次数与低通气次数之和）是影响打鼾声压级最重要的因素。这些声学特征不仅有助于区分不同类型的打鼾，而且在临床诊断和评估OSAHS的严重程度方面具有很高的价值。总结来说，该研究通过系统地分析连续夜间打鼾的声压级，提供了一种新的方法来量化和理解睡眠呼吸障碍，特别是在鉴别和管理打鼾与OSAHS患者中的应用。这为改善睡眠障碍的诊断和个性化治疗方案提供了科学依据。

Acta Oto-Laryngolog ica. 2015; Early Online, 1–7

REVIEW

Acoustic analysis of overnight consecutive snoring sounds by sound

pressure levels

HAO PENG, HUIJIE XU, ZHAN GAO, WEINING HUANG & YUXIA HE

Department of Otolaryngology, Beijing Hospital, Dongdan, Beijing, PR China

Abstract

Conclusion: The sound pressure level (SPL) parameters, especially the A-weighted equivalent sound level (LAeq) and

accumulative percentile sound level 10 (L10), were signiﬁcantly different between simple snoring (SS) and obstructive sleep

apnea-hypopnea syndrome (OSAHS). The apnea-hypopnea index (AHI) was the most signiﬁcant factor to affect the SPLs of

snoring sounds. LAeq and L10 were valuable acoustic characters of snoring which could reﬂect the severity of sleep disordered

breathing in clinic. Objectives: Due to the limitation of acoustic analysis of single snoring sound for snorers, this study analyzed

characteristics of consecutive snoring sounds overnight by the SPLs in patients of SS and OSAHS. Method: Ninety-four

patients who underwent simultaneous SPL recording and polysomnography (PSG) were included in this study. Parameters of

SPL such as LAeq, peak sound level (Lpeak), L10, L50, and L90 were analyzed. The correlation between these parameters and

PSG results was also analyzed. Results: The LAeq and L10 in OSAHS patients were signiﬁcantly different from patients with

SS. The body mass index (BMI) was positively correlated to LAeq and L10. Among various factors of PSG data and

demographic factors, the SPLs were mostly affected by the AHI and the lowest oxygen saturation (LSaO

Keywords: Obstructive sleep apnea-hyponea syndrome, simple snoring, equivalent sound level, accumulative percentile sound

level

Introduction

Snoring is a dominant symptom in patients with sus-

pected sleep disordered breathing (SDB). Depending

on the severity of SDB, snoring demonstrates as simple

snoring (SS) without further respiratory events (like

apneas, hyponeas) and obstructive sleep apnea-

hyponea syndrome (OSAHS). However, it may be

that ‘simple’ snoring does not exist, because, when

the sleep of a bed partner is disturbed,

snoring constitutes a social nuisance [1]. Studies con-

cerning the prevalence of snoring show widely varying

ﬁgures, ~50% of the adults suffer from snoring. Up to

64% of men and 36% of women in Spain are classiﬁed

as simple snorers [2]. The prevalence of OSAHS in

middle-aged people is 2% in women and 4% in men

and roughly 75–85% of patients with OSAHS are

undiagnosed [3]. In the past 30 years, OSAHS has

become one of the most dangerous diseases which

could impair many organs and lead to serial chronic

diseases such as hypertension, heart failure,

type 2 diabetes, stoke, reﬂex laryngitis, etc. [4].

Overnight polysomnography (PSG) is regarded as a

golden standard for OSAHS diagnosis. However,

PSG is rather complicated, which affects patients’

normal sleep and, hence, cannot reﬂect the real sleep

situation. Furthermore, PSG is too expensive to apply

night to night. Therefore, researchers pay great atten-

tion to developing easier and more convenient meth-

ods for diagnosing OSAHS.

Snoring sound analysis has been paid great atten-

tion to in the past two decades. Acoustic characteristic

of the single snoring sound has been we ll clariﬁed,

which is meani ngful for investigating sleep disordered

breathing (SDB) [5–9]. However, the acoustic anal-

ysis of single snoring sound fails to reﬂect the overall

Correspondence: Huijie Xu, Department of Otolaryngology, Beijing Hospital, No. 1 Dahua Road, Beijing, PR China. Tel: +86 10 85136292.

Fax: +86 1065136292. E-mail: xhj0531@163.com

(Received 14 January 2015; accepted 3 March 2015)

ISSN 0001-6489 print/ISSN 1651-2251 online  2015 Informa Healthcare

DOI: 10.3109/00016489.2015.1027414

Acta Otolaryngol Downloaded from informahealthcare.com by Shanghai Jiao Tong University on 06/05/15

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