Evidence map›Paper›PMID 33222606›Full record

Observational studyJournal of the American Heart Association2020

Blood Pressure Changes in 1610 Subjects With and Without Antihypertensive Medication During Long-Term Fasting.

Franziska Grundler, Robin Mesnage, Andreas Michalsen, Françoise Wilhelmi de Toledo

Registry-linked trialOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in Journal of the American Heart Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07155993 (FastForward), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% of its field
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.

NCT07155993 enrolling by invitationnot on this mapstarted 2024, after this paper: background citation

FastForward: A Prospective Analysis of Long-term Fasting and Subsequent Food Reintroduction in Humans

Typeobservational_patient_registrySponsorBuchinger Wilhelmi Development & Holding GmbHRan2024 to 2026Enrolled300ConditionsDiabetes (DM), Pre Diabetes, Overweight (BMI &gt, 25)
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Influence of an acute fast on ambulatory blood pressure and autonomic cardiovascular control.American journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Trial
  5. Trial
  6. Review
  7. Diet, gut microbiota, and health: a review.Food science and biotechnology · 2025
    Review
  8. Article
  9. Article
  10. Intermittent Metabolic Switching and Vascular Cognitive Impairment.Journal of obesity & metabolic syndrome · 2024
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Observational
  20. May Measurement Month 2019: an analysis of blood pressure screening results from Nigeria.European heart journal supplements : journal of the European Society of Cardiology · 2021
    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

4 authors at 3 institutions in 2 countries.

Franziska GrundlerBuchinger Wilhelmi Clinic Überlingen Germany.
Robin MesnageGene Expression and Therapy Group Department of Medical and Molecular Genetics Faculty of Life Sciences and Medicine King's College LondonGuy's Hospital London United Kingdom.
Andreas MichalsenInstitute of Social Medicine, Epidemiology and Health Economics Charité- Universitätsmedizin Berlincorporate member of Freie Universität BerlinHumboldt-Universität zu Berlin, and Berlin Institute of Health Berlin Germany.
Françoise Wilhelmi de ToledoBuchinger Wilhelmi Clinic Überlingen Germany.
Humboldt-Universität zu Berlin · DEBuchinger Wilhelmi · DEGuy's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background We investigated daily blood pressure (BP) changes during fasting periods ranging from 4 to 41 (10.0±3.8) days in a cohort of 1610 subjects, including 920 normotensive, 313 hypertensive nonmedicated, and 377 hypertensive medicated individuals. Methods and Results Subjects underwent a multidisciplinary fasting program with a daily intake of ≈250 kcal. Weight and stress scores decreased during fasting, and the well-being index increased, documenting a good tolerability. BP mean values decreased from 126.2±18.6/81.4±11.0 to 119.7±15.9/77.6±9.8 mm Hg (mean change, -6.5/3.8 mm Hg). BP changes were larger for hypertensive nonmedicated subjects (>140/90 mm Hg) and reduced by 16.7/8.8 mm Hg. This reduction reached 24.7/13.1 mm Hg for hypertensive nonmedicated subjects (n=76) with the highest BP (>160/100 mm Hg). In the normotensive group, BP decreased moderately by 3.0/1.9 mm Hg. Interestingly, we documented an increase of 6.3/2.2 mm Hg in a subgroup of 69 female subjects with BP <100/60 mm Hg. In the hypertensive medicated group, although BP decreased from 134.6/86.0 to 127.3/81.3 mm Hg, medication was stopped in 23.6% of the subjects, whereas dosage was reduced in 43.5% and remained unchanged in 19.4%. The decrease in BP was larger in subjects fasting longer. Baseline metabolic parameters, such as body mass index and glucose levels, as well as age, can be used to predict the amplitude of the BP decrease during fasting with a machine learning model. Conclusions Long-term fasting tends to decrease BP in subjects with elevated BP values. This effect persisted during the 4 days of stepwise food reintroduction, even when subjects stopped their antihypertensive medication. Registration URL: https://www.drks.de/drks_web/; Unique identifier: DRKS00010111.

Indexed as

AdultAgedAntihypertensive AgentsBlood PressureCohort StudiesFastingFemaleGermanyHumansHypertensionMaleMiddle AgedTime FactorsWeight LossAntihypertensive AgentsBuchinger fastinghypertensionweight loss

Identifiers

PMID33222606
PMCPMC7763762
OpenAlexW3108934829

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.