Evidence map›Paper›PMID 32649637›Full record

ArticleJournal of hypertension2020

Prognostic importance of long-term SBP variability in high-risk hypertension.

Rita Del Pinto, Davide Pietropaoli, Mirela Dobre, Claudio Ferri

Abstract read
In one paragraph

Article in Journal of hypertension, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

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

  1. Pooled it
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Long-term BP variability: open questions in clinical practice.International Journal of Cardiology. Hypertension · 2020
    Article
  7. Periodontitis and Hypertension: Is the Association Causal?High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2020
    Review
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.

Rita Del PintoUniversity of L'Aquila, Department of Life, Health, and Environmental Sciences, San Salvatore Hospital, L'Aquila, Italy.
Davide PietropaoliUniversity of L'Aquila, Department of Life, Health, and Environmental Sciences, San Salvatore Hospital, L'Aquila, Italy.
Mirela DobreDepartment of Medicine, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.
Claudio FerriUniversity of L'Aquila, Department of Life, Health, and Environmental Sciences, San Salvatore Hospital, L'Aquila, Italy.

Funding

Myocardial Fibrosis in Hypertensive Adults with and without Chronic Kidney DiseaseR01HL141846 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI DOBRE, MIRELA AURORA · 2018 to 2022
$2.0M
NHLBI NIH HHS R01 HL141846
6 · The paper itself

Abstract

objectiveIn addition to high blood pressure variability (BPV), low BPV was associated with adverse cardiovascular prognosis in selected high-risk patients. We explored this issue in the Systolic Blood Pressure Intervention Trial (SPRINT) using a nonlinear approach with BPV as a continuous variable.

methodsLong-term systolic BPV (SBPV) (coefficient of variation, CoV %) was calculated on quarterly visits until a fatal/nonfatal cardiovascular event or all-cause mortality, excluding titration period and patients with missing visits. We used Cox proportional hazard models with penalized smoothing splines to shape the risk of outcomes against the continuum of SBPV (independent variable). Adjusted hazard ratios (aHR, 95% CI) were calculated using the reference range derived from the nonlinear model. Sensitivity analysis based on propensity score matching (PSM) was performed.

resultsThe association of SBPV with fatal/nonfatal cardiovascular events was J-shaped, whereas that with all-cause mortality was linear. After multivariate adjustment, however, the only significant associations remained that of low SBPV (CoV <5%) with cardiovascular events (hazard ratio 1.85, 95% CI 1.24-2.75, P = 0.003), and of high SBPV (CoV >10%) with the composite of cardiovascular events and all-cause mortality (hazard ratio 1.35, 95% CI 1.02-1.80; P = 0.037). Low SBPV was associated with ischemic heart disease (hazard ratio 2.76, 95% CI 1.55-4.91; P < 0.001). There was a significant U-shaped association of SBPV with cardiovascular events in the PSM cohort.

conclusionNonlinear modeling indicates that low and high long-term SBPV have prognostic relevance in high-risk hypertensive individuals from SPRINT. Randomized trials are needed to test these findings and their potential therapeutic implications.

Indexed as

Blood PressureAcute Coronary SyndromeAgedFemaleHumansHypertensionLongitudinal StudiesMaleMiddle AgedMortalityMyocardial InfarctionPrognosisProportional Hazards ModelsStrokeSystoleTime Factors

Identifiers

PMID32649637
PMCPMC9125745

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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.