The risk of cold temperature: an important aspect of the determination of morning blood pressure surge

Yano, Yuichiro; Kario, Kazuomi

doi:10.1038/hr.2010.203

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…First, cold-induced cardiovascular events are known to occur more often in older, hypertensive subjects [50,51] and our study included young, healthy subjects. Thus, any extrapolation of the relationship between sleep characteristics, autonomic changes and the MBPS to hypertensive patients and older subjects should be made with great caution.…”

Section: Discussionmentioning

confidence: 99%

Effects of cold exposure on autonomic changes during the last rapid eye movement sleep transition and morning blood pressure surge in humans

Kuo¹,

Hong²,

Hsieh³

et al. 2014

Sleep Medicine

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Section: Discussionmentioning

confidence: 99%

Effects of cold exposure on autonomic changes during the last rapid eye movement sleep transition and morning blood pressure surge in humans

Kuo¹,

Hong²,

Hsieh³

et al. 2014

Sleep Medicine

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“…10, 11, 12, 27, 28, 29 However, although the possibility of a higher prevalence of hypertension during winter compared with summer was recently reported, 29, 30 no population study specifically investigated the possible bias introduced by environmental temperature on hypertension burden assessment in large surveys. The varied Yemen topography corresponds to widespread climate changes, with a temperate climate in the highlands and high temperatures in the coastal region.…”

Section: Discussionmentioning

confidence: 99%

Epidemiology of hypertension in Yemen: effects of urbanization and geographical area

et al. 2013

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Although globalization can contribute to increased blood pressure by spreading unhealthy behaviors, it also provides powerful means to tackle hypertension. The dissemination of information about and advice on cardiovascular prevention and facilitated contact with health services are valuable resources. To investigate the effects of urbanization, geographical area, and air temperature on hypertension burden and kidney damage, a survey was performed in 2008 with a door-to-door approach among urban and rural adult dwellers of three geographic areas (capital, inland, coast) of Yemen. Subjects (n=10 242) received two visits several days apart to confirm the diagnosis of hypertension. Proteinuria (dipstick test ⩾+1) was used as a marker of kidney damage. Prevalence rates were weighted to represent the Yemen population aged 15–69 years in 2008. Rates of hypertension and proteinuria progressively increased from the capital (6.4% 95% confidence level (CI) 5.8–7.0 and 5.1% 4.4–5.9, respectively), to inland areas (7.9% 7.0–8.7 and 6.1% 5.1–7.1), to the coastal area (10.1% 8.9–11.4 and 8.9% 7.3–10.4). When compared with urban dwellers, rural dwellers had similar hypertension prevalence (adjusted odds ratios (ORs) 1.03; 95% CI 0.91–1.17) but higher proteinuria rates (adjusted ORs 1.55; 1.31–1.85). Overall, home temperature was associated with a lower hypertension rate (adjusted OR 0.98; 0.96–0.99). This large population study reveals that the highest burden of hypertension and kidney damage is detectable in remote areas of the country.

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“…Morning BP surge are augmented in cold seasons, and cold temperature has an impact on the BP surge. We and others have reported that indoor temperature showed increased blood pressure with fluctuation, which might lead to high cardiovascular mortality in the winter season [1][2][3][4]. Activation of the sympathetic nervous system in response to cold temperature increases vascular tone in resistance arteries, and bedtime administration of an α-adrenergic blocker suppresses morning BP surge by reducing resistance [5].…”

Section: Introductionmentioning

confidence: 99%

Morning surge in sympathetic nervous activity in the indoor environment during the cold winter season

et al. 2022

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We addressed to the sympathetic nervous activation of the same people in both their houses and a highly insulated and airtight model house (model house) during the cold winter season. Eight subjects (4 males and 4 females) stayed two nights at each house and were continuously monitored for sympathetic nerve system by calculating LF (low frequency)/HF (high frequency) in the analysis of heart rate variability using a wearable electrocardiography equipment. The room temperatures were kept constant at 20 °C or more in model house, but much lower in their houses. In all subjects, the sleeping duration is longer in model house compared with that in the participants' houses. Four subjects showed a morning surge in sympathetic activity that were more intense at their houses. This morning surge in sympathetic activity in a residential setting suggests the importance of the indoor environment in the management of early morning hypertension.

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The risk of cold temperature: an important aspect of the determination of morning blood pressure surge

Cited by 3 publications

References 22 publications

Effects of cold exposure on autonomic changes during the last rapid eye movement sleep transition and morning blood pressure surge in humans

Effects of cold exposure on autonomic changes during the last rapid eye movement sleep transition and morning blood pressure surge in humans

Epidemiology of hypertension in Yemen: effects of urbanization and geographical area

Morning surge in sympathetic nervous activity in the indoor environment during the cold winter season

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