Skip to main content
HeartCited

Potassium para Cardiac Arrhythmia

C Evidências Evidência limitada de estudos de pequena dimensão, mas existem alguns sinais positivos.

Hypokalemia is a well-established arrhythmia trigger. Guidelines support maintaining serum K+ >4.0 mEq/L. Research on supplementation benefit in normokalemic patients is unclear.

<\/script>\n
`; }, get iframeSnippet() { const domain = 'heartcited.com'; const params = 'ingredient\u003Dpotassium\u0026condition\u003Darrhythmia'; return ``; }, get activeSnippet() { return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet; }, copySnippet() { navigator.clipboard.writeText(this.activeSnippet).then(() => { this.copied = true; setTimeout(() => { this.copied = false; }, 2000); }); } }" @keydown.escape.window="open = false" @click.outside="open = false">

Embed This Widget

Style



      
      
    


    
    

      Widget powered by
      .
      Free, no account required.
    

  




    








    

        

            C

        

        

            
Conclusão

            
            
Hypokalemia is a well-established arrhythmia trigger. Guidelines support maintaining serum K+ >4.0 mEq/L. Research on supplementation benefit in normokalemic patients is unclear.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Other
                
                
                n=19
                
                
                1 weeks
                
                
            

            
                Effect of moderate potassium-elevating treatment in long QT syndrome: the TriQarr Potassium Study.
            
            

                
                Dose: 50 mg
                
                
                vs: baseline
                
                
                Outcome: cardiac repolarisation
                
                
                Efeito: None
                
                
                p=0.07
                
            

            
            
População: lqts with a disease-causing kcnq1 or kcnh2 variant

            
        

        
        

            

                
                    Cohort Study
                
                
                n=157766
                
                
                26.0 weeks
                
                
            

            
                Elevated potassium levels in patients with chronic kidney disease: occurrence, risk factors and clinical outcomes-a …
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: Incidence of hyperkalemia, mortality
                
                
                Efeito: None
                
                
                None
                
            

            
            
População: Newly diagnosed CKD patients in Denmark

            
        

        
        

            

                
                    Observational Study
                
                
                n=40
                
                
                
            

            
                Efficacy and effectiveness of anti-digoxin antibodies in chronic digoxin poisonings from the DORA study (ATOM-1).
            
            

                
                Dose: anti-digoxin antibodies (Fab)
                
                
                vs: pre-treatment
                
                
                Outcome: serum digoxin and clinical outcomes
                
                
                Efeito: Fab bound digoxin; no improved clinical outcomes
                
                
                None
                
            

            
            
População: Chronic digoxin toxicity patients

            
        

        
        

            

                
                    Other
                
                
                
                
            

            
                Abbott ARCHITECT clinical chemistry and immunoassay systems: digoxin assays are free of interferences from spironolactone, …
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: None
                
                
                Efeito: None
                
                
                None
                
            

            
            
População: None

            
        

        
        

            

                
                    Other
                
                
                
                
            

            
                Potassium supplements or potassium-sparing agents.
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: mineral status
                
                
                Efeito: None
                
                
                None
                
            

            
            
População: hypertensive patients

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
5

        
Estudos

    

    

        
300

        
Participantes

    

    

        
            
            ↑
            
        
        
Positive

    

    

        C

        
Nota

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Effect of moderate potassium-elevating treatment in long QT syndrome: the TriQarr Potassium Study.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Open heart
                        2021
                        
                        6 citações
                        
                    

                

                
                

                    

                        
                            Elevated potassium levels in patients with chronic kidney disease: occurrence, risk factors and clinical outcomes-a Danish population-based cohort study.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Nephrology, dialysis, transplantation …
                        2018
                        
                        83 citações
                        
                    

                

                
                

                    

                        
                            Efficacy and effectiveness of anti-digoxin antibodies in chronic digoxin poisonings from the DORA study (ATOM-1).
                        
                        
                            
                                Observational
                            
                            
                            
                        
                    

                    

                        Clinical toxicology (Philadelphia, …
                        2016
                        
                        25 citações
                        
                    

                

                
                

                    

                        
                            Abbott ARCHITECT clinical chemistry and immunoassay systems: digoxin assays are free of interferences from spironolactone, potassium canrenoate, and their common …
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Therapeutic drug monitoring
                        2011
                        
                        17 citações
                        
                    

                

                
                

                    

                        
                            Potassium supplements or potassium-sparing agents.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Acta pharmacologica et …
                        1984
                        
                        3 citações
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





            
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units


            
            

                
Dosagens Comumente Utilizadas

                

                    
                    

                        
supplements:

                        
Typically 99 mg/dose (FDA limit per unit)

                    

                    
                    

                        
dashdiettarget:

                        
4,700 mg/day

                    

                    
                    

                        
whorecommendation:

                        
3,510 mg/day from food

                    

                    
                

                
                

                    Limite superior: No UL for dietary potassium in healthy individuals; supplemental potassium should be supervised
                

                
            

            

            
            

                
Dosagens Estudadas em Pesquisas

                

                    

                        
                            

                                Dosagem
                                Duração
                                Efeito
                                N
                            

                        
                        
                            
                            

                                50 mg
                                1 weeks
                                
                                    
                                    Neutral
                                    
                                
                                19
                            

                            
                            

                                None
                                26.0 weeks
                                
                                    
                                    Mixed
                                    
                                
                                157766
                            

                            
                            

                                anti-digoxin antibodies (Fab)
                                --
                                
                                    
                                    Neutral
                                    
                                
                                40
                            

                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                            

                                None
                                --
                                
                                    
                                    Mixed
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                Melhor horário: With meals to reduce GI irritation; divide supplemental doses throughout the day
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
Efeitos Colaterais Relatados

                    
    
                        
                        
  • 
                            ⚠
                            Gastrointestinal irritation (nausea, vomiting, diarrhea)
                        
    • 
                        
                        
  • 
                            ⚠
                            Hyperkalemia risk in patients with renal impairment
                        
    • 
                        
                        
  • 
                            ⚠
                            Cardiac arrhythmias at excessively high serum levels
                        
    • 
                        
                    

                

                

                
                

                    
Interações Conhecidas

                    
    
                        
                        
  • 
                            ●
                            ACE inhibitors (increased hyperkalemia risk)
                        
    • 
                        
                        
  • 
                            ●
                            ARBs (increased hyperkalemia risk)
                        
    • 
                        
                        
  • 
                            ●
                            Potassium-sparing diuretics (increased hyperkalemia risk)
                        
    • 
                        
                        
  • 
                            ●
                            NSAIDs (may increase potassium retention)
                        
    • 
                        
                    

                

                

                
                

                    

                        Ingestão máxima tolerável: No UL for dietary potassium in healthy individuals; supplemental potassium should be supervised
                    

                

                
            

            

                Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does Potassium help with Cardiac Arrhythmia?
            
        
        

            Based on 5 studies with 300 participants, there is limited but promising evidence that Potassium may support Cardiac Arrhythmia management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much Potassium should I take for Cardiac Arrhythmia?
            
        
        

            Studies have used various dosages. A commonly studied range is Typically 99 mg/dose (FDA limit per unit). Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of Potassium?
            
        
        

            Reported side effects may include Gastrointestinal irritation (nausea, vomiting, diarrhea), Hyperkalemia risk in patients with renal impairment, Cardiac arrhythmias at excessively high serum levels. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for Potassium and Cardiac Arrhythmia?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 5 peer-reviewed studies with 300 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  




            

                
                
                

                
                

                    
Potassium para outras condições

                    

                        
                        
                            High Blood Pressure (Hypertension)
                            B

                        
                        
                    

                

                
            

        

        

    


    
    






  
References

  
    
    
    
  1. 
      [1]
      Peter Marstrand et al..
      Open Heart.
      2021.
      Effect of moderate potassium-elevating treatment in long QT syndrome: the TriQarr Potassium Study.
      doi:10.1136/openhrt-2021-001670
      PubMed
    
    2. 
    
    
  2. 
      [2]
      Reimar W Thomsen et al..
      Nephrol Dial Transplant.
      2018.
      Elevated potassium levels in patients with chronic kidney disease: occurrence, risk factors and clinical outcomes-a Danish population-based cohort study.
      doi:10.1093/ndt/gfx312
      PubMed
    
    3. 
    
    
  3. 
      [3]
      Betty S Chan et al..
      Clin Toxicol (Phila).
      2016.
      Efficacy and effectiveness of anti-digoxin antibodies in chronic digoxin poisonings from the DORA study (ATOM-1).
      doi:10.1080/15563650.2016.1175620
      PubMed
    
    4. 
    
    
  4. 
      [4]
      Andrea DeFrance et al..
      Ther Drug Monit.
      2011.
      Abbott ARCHITECT clinical chemistry and immunoassay systems: digoxin assays are free of interferences from spironolactone, potassium canrenoate, and their common …
      doi:10.1097/FTD.0b013e3181fd4c30
      PubMed
    
    5. 
    
    
  5. 
      [5]
      S Persson.
      Acta Pharmacol Toxicol (Copenh).
      1984.
      Potassium supplements or potassium-sparing agents.
      doi:10.1111/j.1600-0773.1984.tb03642.x
      PubMed
    
    6. 
    
  















    

        Aviso Legal da FDA:
        Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.