Evidence map›Paper›PMID 34380417›Full record

ArticleBMC geriatrics2021

Nocturnal blood pressure rise as a predictor of cognitive impairment among the elderly: a retrospective cohort study.

Yunli Xing, Ying Sun, Shan Wang, Feng Feng, Deqiang Zhang, Hongwei Li

Abstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

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

  1. Pooled it
  2. Article
  3. Observational
  4. Article
  5. Review
  6. While You Are Sleeping: Marital Ambivalence and Blunted Nocturnal Blood Pressure.International journal of environmental research and public health · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. 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

6 authors.

Yunli XingDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
Ying SunDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
Shan WangDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
Feng FengDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
Deqiang ZhangDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
Hongwei LiDepartment of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China. lhw19656@sina.com.ORCID 0000-0001-5900-7088

Funding

Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support ZYLX201838
6 · The paper itself

Abstract

backgroundThis study investigated the different blood pressure patterns that were evaluated by ambulatory blood pressure monitoring (ABPM) among elderly patients and explored the effect of pressure patterns on cognitive impairment and mortality.

methodsA total of 305 elderly participants aged ≥65 years were divided into the cognitive impairment group (CI, n = 130) and the non-cognitive impairment group (NCI, n = 175) according to the MMSE score. All participants underwent ABPM to evaluate possible hypertensive disorder and cerebral MRI for the evaluation of cerebral small vessel disease. Follow-up was performed by telephone or medical records. The primary outcome was all-cause mortality. Secondary endpoints were major adverse cardiac and cerebrovascular events (MACCE).

resultsAmong 305 participants, 130 (42.6%) were identified with cognitive impairment (CI), with average systolic blood pressure (BP) of 127 mmHg and diastolic BP of 66 mmHg. According to ABPM, only 13.1% had a dipper pattern, 45.6% had a nocturnal BP rise, while 41.3% had a non-dipper pattern. Compared with NCI patients, the CI group had significantly higher night-time systolic BP (130.0 ± 18.2 vs. 123.9 ± 15.1, p = 0.011), and more participants had nocturnal BP rise (52.3% vs. 40.6%, p = 0.042). Nocturnal BP rise was associated with greater white matter hyperintensities (WMH) (p = 0.013). After 2.03 years of follow-up, there were 35 all-cause deaths and 33 cases of major adverse cardiac and cerebrovascular events (MACCE). CI was independently associated with all-cause mortality during long-term observation (p < 0.01). Nocturnal BP rise had no significant predictive ability for all-cause mortality in elderly patients (p = 0.178).

conclusionsNocturnal BP rise contributed to greater cognitive impairment in elderly patients. Not nocturnal BP rise, but CI could significantly increase all-cause mortality. Controlling BP based on ABPM is critical for preventing the progression of cognitive dysfunction.

Indexed as

Cognitive DysfunctionHypertensionAgedBlood PressureBlood Pressure Monitoring, AmbulatoryCircadian RhythmHumansRetrospective StudiesAmbulatory blood pressure monitoringBlood pressureCognitive impairmentNocturnal blood pressure rise

Identifiers

PMID34380417
PMCPMC8359081

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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.