Evidence map›Paper›PMID 32070187›Full record

ArticleCirculation research2020

Hypokalemia Promotes Arrhythmia by Distinct Mechanisms in Atrial and Ventricular Myocytes.

Kiarash Tazmini, Michael Frisk, Alexandre Lewalle, Martin Laasmaa, Stefano Morotti, David B Lipsett, Ornella Manfra, Jonas Skogestad, Jan M Aronsen, Ole M Sejersted and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Circulation research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 3% 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.

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

39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Primary aldosteronism.Nature reviews. Disease primers · 2026
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  14. MOG1medRxiv : the preprint server for health sciences · 2025
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  17. Atrial arrhythmogenesis and electrophysiological remodeling in hypokalaemic metabolic syndrome: the role of apamin-sensitive SK channels.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 · 2025
    Article
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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

16 authors at 4 institutions in 3 countries.

Kiarash Tazmini *From the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Michael Frisk *From the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Alexandre LewalleDivision of Imaging Sciences and Biomedical Engineering, King's College London, United Kingdom (A.L., S.A.N.).
Martin LaasmaaFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Stefano MorottiDepartment of Pharmacology, School of Medicine, University of California Davis (S.M., A.G.E., E.G.).
David B LipsettFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Ornella ManfraFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Jonas SkogestadFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Jan M AronsenFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Ole M SejerstedFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Ivar SjaastadFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Andrew G EdwardsDepartment of Pharmacology, School of Medicine, University of California Davis (S.M., A.G.E., E.G.).
Eleonora GrandiDepartment of Pharmacology, School of Medicine, University of California Davis (S.M., A.G.E., E.G.).
Steven A NiedererDivision of Imaging Sciences and Biomedical Engineering, King's College London, United Kingdom (A.L., S.A.N.).
Erik ØieDepartment of Internal Medicine, Diakonhjemmet Hospital, Oslo, Norway (K.T., E.Ø.).
William E LouchFrom the Institute for Experimental Medical Research, Oslo University Hospital (K.T., M.F., M.L., D.B.L., O.M., J.S., J.M.A., O.M.S., I.S., W.E.L.), University of Oslo, Norway.
Oslo University Hospital · NOUniversity of California, Davis · USKing's College London · GBDiakonhjemmet Hospital · NO

Funding

Project 3 (Mercola)P01HL141084 · NHLBI · STANFORD UNIVERSITY · PI Joseph C. Wu · 2019 to 2026
$21.1M
Sex-specific arrhythmogenic mechanisms of atrial fibrillationR01HL131517 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Eleonora Grandi · 2016 to 2026
$5.0M
Modeling of subcellular signaling crosstalk in failing myocytesR00HL138160 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI MOROTTI, STEFANO · 2020 to 2022
$722k
Modeling of subcellular signaling crosstalk in failing myocytesK99HL138160 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI MOROTTI, STEFANO · 2018 to 2019
$237k
American Heart Association-American Stroke Association 15SDG24910015NHLBI NIH HHS K99 HL138160NHLBI NIH HHS P01 HL141084NHLBI NIH HHS R00 HL138160NHLBI NIH HHS R01 HL131517
6 · The paper itself

Abstract

rationaleHypokalemia occurs in up to 20% of hospitalized patients and is associated with increased incidence of ventricular and atrial fibrillation. It is unclear whether these differing types of arrhythmia result from direct and perhaps distinct effects of hypokalemia on cardiomyocytes.

objectiveTo investigate proarrhythmic mechanisms of hypokalemia in ventricular and atrial myocytes. METHODS AND

resultsExperiments were performed in isolated rat myocytes exposed to simulated hypokalemia conditions (reduction of extracellular [K

conclusionsDistinct mechanisms underlie hypokalemia-induced arrhythmia in the ventricle and atrium but also vary between atrial myocytes depending on subcellular structure and electrophysiology.

Indexed as

Action PotentialsAnimalsArrhythmias, CardiacAtrial FibrillationCalciumCells, CulturedHeart AtriaHeart VentriclesHumansHypokalemiaMyocytes, CardiacPotassiumRatsSodiumSodium-Calcium ExchangerSodium-Potassium-Exchanging ATPaseCalciumPotassiumSodiumSodium-Calcium ExchangerSodium-Potassium-Exchanging ATPasearrhythmiacalcium signalingelectrophysiologyhypokalemiaion channel

Identifiers

PMID32070187
PMCPMC7098435
OpenAlexW3006982162

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.