| Title |
Nocturnal blood pressure fluctuation and associated influential factors in severe obstructive sleep apnea patients with hypertension
|
|---|---|
| Published in |
Sleep and Breathing, March 2018
|
| DOI | 10.1007/s11325-018-1634-6 |
| Pubmed ID | |
| Authors |
Jing Xu, Ning Ding, Xilong Zhang, Nana Wang, Bing Sun, Rong Zhang, Xiaochen Xie, Zongren Wan, Yanli Gu, Shan Zhang, Yongqing Hong, Mao Huang, Zili Meng |
| Abstract |
Obstructive sleep apnea syndrome (OSAS) can induce dramatic blood pressure (BP) fluctuations during sleep and it can be associated with hypertension. We investigated the properties and associated influential factors of BP fluctuation in severe OSAS with and without hypertension. Two hundred one severe OSAS subjects were divided into hypertensive and normotensive groups. BP was continuously monitored via measurement of pulse transmit time (PTT). The value of apnea-related systolic BP elevation (ΔSBP) was used to reflect the amplitude of BP fluctuation, and the SBP index (the number of ΔSBP > 10 mmHg per hour of sleep time) was used to stand for the frequency of significant BP fluctuations. Compared with the normotensive group, △SBP and SBP index were higher in the hypertensive group (13.8 ± 4.4 mmHg vs 10.9 ± 3.1 mmHg; 44.8 ± 21.3 events/h vs 26.8 ± 15.8 events/h, all p < 0.001). Multiple regression analysis showed that percentage of sleep time with oxygen saturation < 90% (TST90) and SBP index correlated more with mean level of awakeness and sleep SBP than with apnea-hypopnea index (AHI). Analysis of all apnea events demonstrated that △SBP and the frequency of BP fluctuations were more remarkable following hypoxia than following arousal; △SBP correlated more with oxygen desaturation degree (r = 0.388, p < 0.01) and minimal SpO2(r = 0.392, p < 0.01) than with apnea length and desaturation duration. In severe OSAS, nocturnal and awake BP levels are associated more with the nocturnal hypoxic duration and BP fluctuation than with AHI. Nocturnal BP fluctuation can be induced by both hypoxia and arousal, and especially by hypoxia. NCT02876471. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 21 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 21 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Other | 3 | 14% |
| Student > Master | 2 | 10% |
| Lecturer | 1 | 5% |
| Student > Bachelor | 1 | 5% |
| Student > Ph. D. Student | 1 | 5% |
| Other | 3 | 14% |
| Unknown | 10 | 48% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 8 | 38% |
| Nursing and Health Professions | 2 | 10% |
| Computer Science | 1 | 5% |
| Engineering | 1 | 5% |
| Unknown | 9 | 43% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 March 2018.
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#20,468,008
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Outputs from Sleep and Breathing
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Outputs of similar age from Sleep and Breathing
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