scholarly journals Ambulatory blood pressure in children with obstructive sleep apnoea: a community based study

Thorax ◽  
2008 ◽  
Vol 63 (9) ◽  
pp. 803-809 ◽  
Author(s):  
A M Li ◽  
C T Au ◽  
R Y T Sung ◽  
C Ho ◽  
P C Ng ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Obstructive Sleep Apnoea ◽  
Ambulatory Blood Pressure ◽  
Sleep Apnoea ◽  
Community Based ◽  
Obstructive Sleep

scholarly journals Daytime sleepiness predicts inflammation and ambulatory blood pressure in sleep apnoea

2020 ◽  
Vol 6 (4) ◽  
pp. 00310-2019
Author(s):  
Victoria M. Pak ◽  
Brittany Butts ◽  
Vicki Hertzberg ◽  
Nancy Collop ◽  
Arshed A. Quyyumi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Obstructive Sleep Apnoea ◽  
Ambulatory Blood Pressure ◽  
Smoking Status ◽  
Sleep Apnoea ◽  
Newly Diagnosed ◽  
Biological Mechanisms ◽  
Obstructive Sleep ◽  
Treatment Naïve ◽  
Necrosis Factor

IntroductionSleepiness in obstructive sleep apnoea is associated with cardiovascular risk; however, the biological mechanisms are not known. This study explored whether those with subjective sleepiness have increased plasma tumour necrosis factor-related protein 1 (C1qTNF1), a novel adipose-derived hormone (adipokine), and 24-h ambulatory blood pressure (ABP) compared to those without sleepiness in newly diagnosed, treatment-naïve participants with obstructive sleep apnoea.MethodsOverall, 94 participants were included in the analysis. Participants completed the Epworth Sleepiness Scale (ESS), 24-h ABP was monitored, and plasma C1qTNF1 was measured. Sleepy participants were defined as ESS≥10 and nonsleepy as ESS<10. Multiple linear regression was used to explore differences in C1qTNF1, and 24-h mean arterial pressure (MAP) between sleepy and nonsleepy participants, adjusting for age, sex, body mass index, apnoea–hypopnoea index, and smoking status.ResultsC1qTNF1 was significantly higher in sleepy participants (n=57) compared to nonsleepy participants (n=37) (β=0.41 NPX, 95% CI 0.02, 0.80; p=0.04). The 24-h MAP was significantly higher in sleepy participants compared to nonsleepy participants (β=4.06 mmHg, 95% CI 0.36, 7.77; p=0.03).ConclusionsOur findings show that sleepiness is associated with inflammation and higher 24-h MAP in sleep apnoea.

Ambulatory Blood Pressure and Left Ventricular Hypertrophy in Subjects with Untreated Obstructive Sleep Apnoea and Snoring, Compared with Matched Control Subjects, and their Response to Treatment

1994 ◽  
Vol 86 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Robert J. O. Davies ◽  
Joy Crosby ◽  
Anthony Prothero ◽  
John R. Stradling
Keyword(s):  
Blood Pressure ◽  
Obstructive Sleep Apnoea ◽  
Ambulatory Blood Pressure ◽  
Matched Control ◽  
Study Groups ◽  
Sleep Apnoea ◽  
Left Ventricular ◽  
Night Time ◽  
Control Subjects ◽  
Obstructive Sleep

1. Obstructive sleep apnoea and snoring are associated with daytime hypertension. It is uncertain whether this association is directly due to the disturbed sleeping respiration or the result of confounding variables, particularly obesity, smoking and alcohol intake. 2. Ambulatory blood pressure and echocardiographic left ventricular muscle mass were measured in 19 patients with obstructive sleep apnoea, 19 men who snore without apnoea and 38 control subjects matched for age, sex, body mass index, smoking and alcohol intake. Ambulatory blood pressure was also measured before and after treatment in 11 patients with obstructive sleep apnoea and their matched control subjects. 3. Compared with matched control subjects, untreated obstructive sleep apnoea and snoring were not associated with an increase in daytime blood pressure. A daytime elevation of either systolic or diastolic blood pressure of > 3.8 mmHg due to obstructive sleep apnoea or snoring was excluded with 95% confidence in each of the study groups. Daytime blood pressure was also unchanged when obstructive sleep apnoea was treated with nasal continuous positive airway pressure. Night-time blood pressure was not significantly different in the patients with obstructive sleep apnoea or the snorers when compared with their matched control subjects. However, a fall in night-time systolic blood pressure was seen in the patients with obstructive sleep apnoea after treatment [fall in systolic blood pressure −6.3 (SD 8.2) mmHg, P < 0.02]. 4. Left ventricular diameter, wall thickness and calculated mass were similar in each of the study groups and their matched control groups. 5. Compared with well-matched control subjects, daytime ambulatory blood pressure is not increased in patients with obstructive sleep apnoea or snoring and these patients do not show left ventricular hypertrophy. Night-time ambulatory blood pressure may be raised by obstructive sleep apnoea since it falls with treatment.

Comparative effects of CPAP and mandibular advancement splint therapy on blood pressure variability in moderate to severe obstructive sleep apnoea

2021 ◽  
Vol 80 ◽  
pp. 294-300
Author(s):  
Hasthi U. Dissanayake ◽  
Kate Sutherland ◽  
Craig L. Phillips ◽  
Ronald R. Grunstein ◽  
Anastasia S. Mihailidou ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Obstructive Sleep Apnoea ◽  
Blood Pressure Variability ◽  
Sleep Apnoea ◽  
Mandibular Advancement ◽  
Splint Therapy ◽  
Mandibular Advancement Splint ◽  
Obstructive Sleep

Modifying effects of the R389G β1-adrenoceptor polymorphism on resting heart rate and blood pressure in patients with obstructive sleep apnoea

2005 ◽  
Vol 110 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Jan Börgel ◽  
Tino Schulz ◽  
Nina K. Bartels ◽  
Jörg T. Epplen ◽  
Nikolaus Büchner ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Obstructive Sleep Apnoea ◽  
Nervous Activity ◽  
Sleep Apnoea ◽  
Cpap Therapy ◽  
Pressure Therapy ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
The Impact

OSA (obstructive sleep apnoea) stimulates sympathetic nervous activity and elevates resting HR (heart rate) and BP (blood pressure). In the present study in a cohort of 309 untreated OSA patients, the resting HR and BP during the daytime were correlated with AHI (apnoea/hypopnea index) and compared with patients with R389R (n=162), R389G (n=125) and G389G (n=22) genotypes of the β1-adrenoreceptor R389G polymorphism. We analysed the impact of the genotype on the decline of HR and BP in a subgroup of 148 patients (R389R, n=86; R389G, n=54; G389G, n=8) during a 6-month follow-up period under CPAP (continuous positive airway pressure) therapy during which cardiovascular medication remained unchanged. In untreated OSA patients, we found an independent relationship between AHI and resting HR (β=0.096, P<0.001), systolic BP (β=0.09, P=0.021) and diastolic BP (β=0.059, P=0.016). The resting HR/BP, however, did not differ among carriers with the R389R, R389G and G389G genotypes. CPAP therapy significantly reduced HR [−2.5 (−1.1 to −4.0) beats/min; values are mean difference (95% confidence intervals)] and diastolic BP [−3.2 (−1.5 to −5.0) mmHg]. The decline in HR was more significantly pronounced in the R389R group compared with the Gly389 carriers [−4.1 (−2.3 to −5.9) beats/min (P<0.001) compared with −0.2 (2.1 to −2.6) beats/min (P=0.854) respectively; Student's t test between groups, P=0.008]. Diastolic BP was decreased significantly (P<0.001) only in Gly389 carriers (R389G or G389G) compared with R389R carriers [−5.0 (−2.3 to −7.6) mmHg compared with −2.0 (0.4 to −4.3) mmHg respectively]. ANOVA revealed a significant difference (P=0.023) in HR reduction between the three genotypes [−4.1 (±8.4) beats/min for R389R, −0.5 (±9.3) beats/min for R389G and +1.9 (±7.2) beats/min for G389G]. In conclusion, although the R389G polymorphism of the β1-adrenoceptor gene did not influence resting HR or BP in untreated OSA patients, it may modify the beneficial effects of CPAP therapy on these parameters.

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