Sleep and autonomic nervous system changes – enhanced cardiac sympathetic modulations during sleep in permanent night shift nurses

Chung, Min Huey; Kuo, Terry B.J.; Hsu, Nanly; Chu, Hsin; Chou, Kuei‐Ru; Yang, Cheryl C.H.

doi:10.5271/sjweh.1324

Cited by 65 publications

(47 citation statements)

References 36 publications

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“…Previous studies have shown that normalized LF power or LF/HF is higher on night duty than when off duty and asleep at night (44)(45)(46)(47)(48)(49) and is higher on days including a night shift compared to days including a morning shift (50). Normalized LF power or LF/HF has also been shown to be higher among shift compared to non-shift workers when both groups work day shifts (51,52) or are asleep at home (53). One study of shift workers found lower SDNN and RMSDD during a night shift compared to sleep at night (45).…”

Section: Discussionmentioning

confidence: 88%

Heart rate variability and endothelial function after sleep deprivation and recovery sleep among male shift and non-shift workers

Wehrens¹,

Hampton²,

Skene³

2011

Scand J Work Environ Health

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Section: Discussionmentioning

confidence: 88%

Heart rate variability and endothelial function after sleep deprivation and recovery sleep among male shift and non-shift workers

Wehrens¹,

Hampton²,

Skene³

2011

Scand J Work Environ Health

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“…Over 15 studies using field measures have reported lower levels of parasympathetic modulation of heart rate variability or increased sympathetic activity in shift work (for example 68,[80][81][82][83][84]. Others have reported that nighttime work is associated with reduced cardiac sympathetic modulation (81).…”

Section: Cardiac Autonomic Functionmentioning

confidence: 99%

Shift work and cardiovascular disease – pathways from circadian stress to morbidity

Puttonen

Härmä²,

Hublin³

2010

Scand J Work Environ Health

480

359

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Puttonen S, Härmä M, Hublin C. Shift work and cardiovascular disease -pathways from circadian stress to morbidity. Scand J Work Environ Health. 2010;36(2):96-108.In order to establish a causal relation between shift work and cardiovascular disease (CVD), we need to verify the pathways from the former to the latter. This paper aims to review the current knowledge of the mechanisms between shift work and CVD. Shift work can increase the risk of CVD by several interrelated psychosocial, behavioral, and physiological mechanisms. The psychosocial mechanisms relate to difficulties in controlling working hours, decreased work-life balance, and poor recovery following work. The most probable behavioral changes are weight gain and smoking. The plausible physiological and biological mechanisms are related to the activation of the autonomic nervous system, inflammation, changed lipid and glucose metabolism, and related changes in the risk for atherosclerosis, metabolic syndrome, and type II diabetes. The data provide evidence for possible disease mechanisms between shift work and CVD, but compelling evidence on any specific mechanism is missing.

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“…Parasympathetic activity is dominant over heart rate during sleep in healthy subjects, whereas sympathetic and parasympathetic activities may dominate over heart rate in patients with OSA (8) . Respiratory events, such as apnea, hypopnea, and arousal, that occur during sleep in patients with OSA create arrhythmogenic effects, causing structural changes in the myocardium and other cardiac structures (9) .…”

Section: Discussionmentioning

confidence: 99%

Relationship Between Severity of Obstructive Sleep Apnea and PR Interval

Karamanli¹,

Aygün²,

Akgedik³

2016

Kosuyolu Heart Journal

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Introduction: Relationship between obstructive sleep apnea (OSA) and electrocardiogram and OSA severity index relationship that may affect the PR interval were studied. Patients and Methods:This study included 85 people who had OSA diagnosed at our clinic between January 2013 and August 2013. Their polysomnography (PSG) reports were evaluated by physicians who are expert in their fi elds. Individuals with severe OSA diseases were categorized as group 1, and individuals with mild to moderate OSA were categorized as group 2.Results: Age distribution of individuals who participated to the study ranged from 20 years to 85 years (mean ± standard deviation, 45.5 ± 13.2 years). Fifty-one (60%) of those individuals were men, and 34 (40%) of them were women. The PR interval for the group who had severe OSA on PSG (group 1) was 163.1 ± 35.2 ms, and it was 147.8 ± 29.3 in group 2. Conclusion:It was observed that individuals having severe OSA had higher PR intervals than individuals who had mild to moderate OSA. It was determined that results were statistically signifi cant (p< 0.05, p= 0.032). We believe that apnea-hypopnea index, oxygen desaturation index, and arousal values, which are indications of OSA severity and parameters of hypoxia-reoxygenation, contribute to PR prolongation. Sonuç: Şiddetli OSA tanısı alan bireylerin, hafi f ve orta şiddette OSA tanısı alan bireylere göre PR sürelerinin yüksek olduğu görüldü. Sonucun istatiksel olarak anlamlı olduğu tespit edildi (p< 0.05, p= 0). OSA şiddeti göstergesi ve hipoksi-reoksijenizasyon parametreleri olan AHI (apne-hipopne indeksi), ODI (oksijen desaturasyon indeksi); arousal değerleri PR uzamasında katkı sağladığına inanmaktayız.

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Sleep and autonomic nervous system changes – enhanced cardiac sympathetic modulations during sleep in permanent night shift nurses

Cited by 65 publications

References 36 publications

Heart rate variability and endothelial function after sleep deprivation and recovery sleep among male shift and non-shift workers

Heart rate variability and endothelial function after sleep deprivation and recovery sleep among male shift and non-shift workers

Shift work and cardiovascular disease – pathways from circadian stress to morbidity

Relationship Between Severity of Obstructive Sleep Apnea and PR Interval

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