Evidence map›Paper›PMID 33658545›Full record

Trial reportScientific reports2021

Blood pressure variability is related to faster cognitive decline in ischemic stroke patients: PICASSO subanalysis.

Yerim Kim, Jae-Sung Lim, Mi Sun Oh, Kyung-Ho Yu, Ji Sung Lee, Jong-Ho Park, Yong-Jae Kim, Joung-Ho Rha, Yang-Ha Hwang, Sung Hyuk Heo and 3 more

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  13. When cognitive impairment has a vascular origin.Journal of clinical hypertension (Greenwich, Conn.) · 2022
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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

13 authors.

Yerim KimDepartment of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea.
Jae-Sung LimDepartment of Neurology, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea.
Mi Sun OhDepartment of Neurology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea.
Kyung-Ho YuDepartment of Neurology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea.
Ji Sung LeeClinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Jong-Ho ParkDepartment of Neurology, Myongji Hospital, Hanyang University College of Medicine, Goyang, Republic of Korea.
Yong-Jae KimDepartment of Neurology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Joung-Ho RhaDepartment of Neurology, Inha University Hospital, Incheon, Republic of Korea.
Yang-Ha HwangDepartment of Neurology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
Sung Hyuk HeoDepartment of Neurology, Kyung Hee University Medical Center, Seoul, Republic of Korea.
Seong Hwan AhnDepartment of Neurology, Chosun University Hospital, Gwangju, Republic of Korea.
Ju-Hun Lee *Department of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea. leejuhun@kdh.or.kr.
Sun U Kwon *Department of Neurology, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. sukwon@amc.seoul.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Blood pressure variability (BPV) is associated with higher cardiovascular morbidity risks; however, its association with cognitive decline remains unclear. We investigated whether higher BPV is associated with faster declines in cognitive function in ischemic stroke (IS) patients. Cognitive function was evaluated between April 2010 and August 2015 using the Mini-mental State Examination (MMSE) and Montreal Cognitive Assessment in 1,240 Korean PICASSO participants. Patients for whom baseline and follow-up cognitive test results and at least five valid BP readings were available were included. A restricted maximum likelihood-based Mixed Model for Repeated Measures was used to compare changes in cognitive function over time. Among a total of 746 participants (64.6 ± 10.8 years; 35.9% female). Baseline mean-MMSE score was 24.9 ± 4.7. The median number of BP readings was 11. During a mean follow-up of 2.6 years, mean baseline and last follow-up MMSE scores were 25.4 ± 4.8 vs. 27.8 ± 4.4 (the lowest BPV group) and 23.9 ± 5.2 vs. 23.2 ± 5.9 (the highest BPV group). After adjusting for multiple variables, higher BPV was independently associated with faster cognitive decline over time. However, no significant intergroup difference in cognitive changes associated with mean systolic BP was observed. Further research is needed to elucidate how BPV might affect cognitive function.

Indexed as

Blood PressureAgedAged, 80 and overBrain IschemiaCognitionCognitive DysfunctionComorbidityFemaleFollow-Up StudiesHumansHypertensionIschemic StrokeLikelihood FunctionsLongitudinal StudiesMaleMental Status and Dementia Tests

Identifiers

PMID33658545
PMCPMC7930263

What OpenQuestion holds

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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.