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  • Hyperkalemia Increases...

Hyperkalemia Increases Risk of Mortality and Hospitalization, finds study

Written By : Dr Kartikeya Kohli |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-05-16T23:47:44+05:30  |  Updated On 17 May 2021 4:11 PM IST
Hyperkalemia Increases Risk of Mortality and Hospitalization, finds study
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Hyperkalemia is a common but potentially life-threatening electrolyte disturbance in patients with chronic kidney disease (CKD), heart failure, diabetes or hypertension. A recent study suggests that hyperkalemia independently increase the risk of mortality, cardiovascular events, hospitalizations, and ICU admissions. The study findings were published in the Kidney International Reports on March 16, 2021.

The potential immediate adverse consequences of acute hyperkalemia are well described in the literature. However, the long-term outcomes associated with hyperkalemia remain poorly described. Although several observational studies have demonstrated the association between hyperkalemia and excess mortality, few studies have explored other important clinical outcomes. Therefore, Dr Navdeep Tangri and his colleagues conducted a study to evaluate the association between hyperkalemia and mortality, cardiovascular events, hospitalizations, and intensive care unit (ICU) admissions.

In this retrospective cohort study, the researchers used administrative databases in Manitoba, Canada and identified 93,667 patients with de novo hyperkalemia (serum potassium ≥ 5.0 mmol/l). They performed propensity score matching among patients with de novo hyperkalemia and patients who were nonhyperkalemic. Using multivariate Cox proportional hazards regression models, adjusted for patient characteristics they assessed the association between hyperkalemia and normokalemia and mortality. The researchers also assessed cardiovascular events, hospitalizations, and ICU admissions. They further performed a sensitivity analysis with hyperkalemia defined as serum potassium ≥ 5.5 mmol/l.

Key findings of the study were:

  • Among 93,667 patients, the researchers noted that 36% had diabetes mellitus (DM), 28% had CKD, and 21% had heart failure (HF).
  • In the propensity score-matched sample of 177,082 individuals, they found that hyperkalemia was associated with an increased risk for

â—Š All-cause mortality (hazard ratio [HR] 1.15),

â—Š Cardiovascular events (HR 1.20 ),

â—Š Short-term mortality (odds ratio [OR] 1.29),

â—Š Hospitalizations (OR 1.71), and

â—Š ICU admissions (OR 3.48).

  • They noted that the findings remained unchanged when a threshold of serum potassium ≥ 5.5 mmol/l was used.

The authors concluded, "hyperkalemia was an independent risk factor for all-cause mortality, cardiovascular events, hospitalizations, and ICU admissions. This finding expands our understanding of important clinical outcomes associated with hyperkalemia."

For further information:

DOI: https://doi.org/10.1016/j.ekir.2021.02.038


diabeteshyperkalemiakidney diseasemortalitypopulationICU admissionsCardiovascular eventsHospitalizationsKidney International ReportsIngrid Hougen
Article Source :  Kidney International Reports
Dr Kartikeya Kohli
Dr Kartikeya Kohli

    Dr Kartikeya Kohli is an Internal Medicine Consultant at Sitaram Bhartia Hospital in Delhi with super speciality training in Nephrology. He has worked with various eminent hospitals like Indraprastha Apollo Hospital, Sir Gangaram Hospital. He holds an MBBS from Kasturba Medical College Manipal, DNB Internal Medicine, Post Graduate Diploma in Clinical Research and Business Development, Fellow DNB Nephrology, MRCP and ECFMG Certification. He has been closely associated with India Medical Association South Delhi Branch and Delhi Medical Association and has been organising continuing medical education programs on their behalf from time to time. Further he has been contributing medical articles for their newsletters as well. He is also associated with electronic media and TV for conduction and presentation of health programs. He has been associated with Medical Dialogues for last 3 years and contributing articles on regular basis.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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