Evidence map›Paper›PMID 38326691›Full record

ArticleSleep & breathing = Schlaf & Atmung2024

The effects of obstructive sleep apnea on blood pressure variability and load in patients with hypertension.

Shao-Dong Xu, Ling-Li Hao, Fei-Fei Liu, Chuan-Zhi Xu

Abstract read
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In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Elevated blood pressure variability links cardiac autonomic dysfunction to complex arrhythmias in hypertension.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Shao-Dong XuDepartment of Cardiology, The Third Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China. xnkxsd@163.com.
Ling-Li HaoDepartment of Sleep Monitoring Center, The Third Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China.
Fei-Fei LiuDepartment of Sleep Monitoring Center, The Third Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China.
Chuan-Zhi XuDepartment of Electrocardiogram, The Third Affiliated Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypertension frequently coexists with obstructive sleep apnea (OSA), and their interplay substantially impacts the prognosis of affected individuals. Investigating the influence of OSA on blood pressure variability (BPV) and blood pressure load (BPL) in hypertensive patients has become a focal point of clinical research.

methodsThis cross-sectional study recruited hypertensive patients (n = 265) without discrimination and classified them into four groups based on their apnea-hypopnea index (AHI): control group (n = 40), AHI < 5; mild group (n = 74), 5 ≤ AHI ≤ 15; moderate group (n = 68), 15 < AHI ≤ 30; severe group (n = 83), AHI > 30. All participants underwent comprehensive assessments, including polysomnography (PSG) monitoring, 24-h ambulatory blood pressure (ABP) monitoring, cardiac Doppler ultrasound, and additional examinations when indicated.

resultsBPV and BPL exhibited significant elevations in the moderate and severe OSA groups compared to the control and mild OSA groups (P < 0.05). Moreover, interventricular septum thickness and left ventricular end-diastolic volume (LVEDV) demonstrated higher values in the moderate and severe OSA groups (P < 0.05). Multiple stepwise regression analysis identified noteworthy risk factors for elevated BPV in hypertensive patients with OSA, including AHI, maximum apnea time, total times of oxygen reduction, and mean time of apnea.

conclusionHypertensive patients with moderate to severe OSA exhibited substantially increased BPV and BPL. Moreover, BPV was correlated with AHI, maximum apnea time, total times of oxygen reduction, and mean time of apnea in hypertensive patients with OSA.

Indexed as

Blood PressureHypertensionPolysomnographySleep Apnea, ObstructiveAdultAgedBlood Pressure Monitoring, AmbulatoryCross-Sectional StudiesFemaleHumansMaleMiddle AgedBlood pressure load (BPL)Blood pressure variability (BPV)HypertensionObstructive sleep apnea (OSA)

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.