Evidence map›Paper›PMID 32271997›Full record

SynthesisJournal of clinical hypertension (Greenwich, Conn.)2020

Effect of dietary salt restriction on central blood pressure: A systematic review and meta-analysis of the intervention studies.

Lanfranco D'Elia, Ersilia La Fata, Alfonso Giaquinto, Pasquale Strazzullo, Ferruccio Galletti

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of clinical hypertension (Greenwich, Conn.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. "Minimal-Advice" on Salt Intake: Results of a Multicentre Pilot Randomised Controlled Trial on Hypertensive Patients.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2025
    Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Dietary Intervention to Improve Blood Pressure Control: Beyond Salt Restriction.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2021
    Review
  15. Sodium Intake and Related Diseases.International journal of molecular sciences · 2021
    Article
  16. Review
  17. Review
  18. Article
  19. 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

5 authors.

Lanfranco D'EliaDepartment of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, Federico II, University of Naples Medical School, Naples, Italy.ORCID 0000-0002-1782-0211
Ersilia La FataAORN "A. Cardarelli", Naples, Italy.
Alfonso GiaquintoDepartment of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, Federico II, University of Naples Medical School, Naples, Italy.
Pasquale StrazzulloDepartment of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, Federico II, University of Naples Medical School, Naples, Italy.
Ferruccio GallettiDepartment of Clinical Medicine and Surgery, ESH Excellence Center of Hypertension, Federico II, University of Naples Medical School, Naples, Italy.ORCID 0000-0001-7556-0254

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Central blood pressure (cBP) is highly associated with cardiovascular risk. Although reduction of salt intake leads to lower peripheral blood pressure (BP), the studies on cBP provided inconsistent results. Therefore, we performed a systematic review and a meta-analysis of the available intervention trials of salt reduction on cBP values to reach definitive conclusions. A systematic search of the online databases available (up to December 2018) was conducted including the intervention trials that reported non-invasively assessed cBP changes after two different salt intake regimens. For each study, the mean difference and 95% confidence intervals were pooled using a random-effect model. Sensitivity, heterogeneity, publication bias, subgroup, and meta-regression analyses were performed. Fourteen studies met the pre-defined inclusion criteria and provided 17 cohorts with 457 participants with 1-13 weeks of intervention time. In the pooled analysis, salt restriction was associated with a significant reduction in augmentation index (9.3%) as well as central systolic BP and central pulse pressure. There was a significant heterogeneity among studies (I

Indexed as

HypertensionBlood PressureDiet, Sodium-RestrictedHumansSodium Chloride, DietarySodium Chloride, Dietaryaugmentation indexcentral blood pressuremeta-analysispulse wave analysissaltsodium intake

Identifiers

PMID32271997
PMCPMC8029708

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.