Evidence map›Paper›PMID 34675498›Full record

ArticleClinical interventions in aging2021

Average Systolic Blood Pressure and Clinical Outcomes in Patients with Atrial Fibrillation: Prospective Data from COOL-AF Registry.

Rungroj Krittayaphong, Satchana Pumprueg, Kasem Ratanasumawong, Poom Sairat, Gregory Y H Lip, COOL-AF Investigators

Abstract readMulticenter Study
In one paragraph

Article in Clinical interventions in aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. Non-linear associations between blood pressure and clinical outcomes in atrial fibrillation: a systematic review and dose-response meta-analysis.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
    Pooled it
  2. Article
  3. Blood pressure and in-hospital outcomes in patients hospitalized with atrial fibrillation: findings from the CCC-AF project.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Article
  4. Review
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  6. Review
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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

6 authors.

Rungroj KrittayaphongDivision of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Satchana PumpruegDivision of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Kasem RatanasumawongPolice General Hospital, Bangkok, Thailand.
Poom SairatDivision of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Gregory Y H LipLiverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.
COOL-AF Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHypertension is associated with incident atrial fibrillation (AF) and AF-related complications. We investigated the associations between average systolic blood pressure (SBP) and outcomes in a nationwide cohort of Asian patients with non-valvular atrial fibrillation (NVAF). PATIENTS AND

methodsA multicenter nationwide registry of patients with NVAF in Thailand was conducted during 2014-2017. Clinical data, including blood pressure, were recorded at baseline and then every 6 months. Average SBP was calculated from the average of SBP from every visit. Cox regression models were used to calculate the rate of clinical outcomes of interest, ie ischemic stroke or transient ischemic attack (TIA), intracerebral hemorrhage (ICH), and all-cause death. Average SBP was categorized into three groups: <120, 120-140, and ≥140 mmHg.

resultsA total of 3402 patients were included, and the mean age was 67.4±11.3 years. The mean (±SD) baseline and average SBPs were 128.5±18.5 and 128.0±13.4 mmHg, respectively. The mean follow-up duration was 25.7±10.6 months. The median rate of ischemic stroke/TIA, ICH, and all-cause death was 1.43 (1.17-1.74), 0.70 (0.52-0.92), and 3.77 (3.33-4.24) per 100 person-years, respectively. The rate of ischemic stroke/TIA and ICH was lowest in patients with average SBP <120 mmHg, and highest among those with average SBP ≥140 mmHg. The death rates were consistent with a J-curve effect, being lowest in patients with an average SBP 120-140 mmHg. Sustained SBP control is more important than the SBP from a single visit.

conclusionSustained control of SBP was significantly associated with a reduction in adverse clinical outcomes in patients with NVAF.

Indexed as

Atrial FibrillationStrokeAgedAnticoagulantsBlood PressureHumansProspective StudiesRegistriesRisk FactorsAnticoagulantsatrial fibrillationblood pressurehypertensionintracerebral hemorrhageischemic stroke

Identifiers

PMID34675498
PMCPMC8520416

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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.