A Portuguese Modified Delphi Consensus on Quality Standards for Hyperkalemia Management in Portugal

Authors

  • Ana Natário Nephrology Department of Unidade Local de Saúde Arrábida, Setúbal, Portugal https://orcid.org/0000-0002-3927-6712
  • Irene Marques Internal Medicine Department, Centro Hospitalar Universitário de Santo António (CHUdSA), Unidade Local de Saúde Santo António, Porto, Portugal; Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), University of Porto, Porto, Portugal; ITR ‑ Laboratory for Integrative and Translational Research in Population Health, Institute of Public Health of the University of Porto, Porto, Portugal; Centro Académico Clínico ICBAS‑Santo António (CAC ICBAS‑Santo António), Porto, Portugal https://orcid.org/0000-0002-4726-800X
  • Marco Mendes Nephrology Department of Unidade Local de Saúde São José, Lisboa, Portugal https://orcid.org/0000-0002-5109-0697
  • Cátia Oliveira Cardiology Department, Hospital de Braga, Braga, Portugal; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Portugal https://orcid.org/0000-0002-8010-6299
  • João Porto Internal Medicine Department of Unidade Local de Saúde Coimbra, Coimbra, Portugal https://orcid.org/0000-0002-3222-3511
  • Ana Paula Silva Nephrology Department of Unidade Local de Saúde Algarve, Faro, Portugal https://orcid.org/0000-0001-8218-8286
  • Joana Paixão Internal Medicine Department, Unidade Local de Saúde Coimbra, Coimbra, Portugal; Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal https://orcid.org/0000-0002-2050-405X
  • Paulo Araújo Cardiology Department of Unidade Local de Saúde São João, Porto, Portugal; RISE-Health, Faculty of Medicine, University of Porto, Porto, Portugal https://orcid.org/0000-0002-8443-6471
  • Rodrigo Leão Internal Medicine Department, Unidade Local de Saúde São José, Lisboa, Portugal; NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal https://orcid.org/0000-0002-4823-3669
  • Luís Rodrigues Nephrology Department of Unidade Local de Saúde Coimbra, Coimbra, Portugal https://orcid.org/0000-0003-0122-982X
  • Renata Carvalho Nephrology Department of Unidade Local de Saúde Braga, Braga, Portugal https://orcid.org/0000-0002-1324-7526
  • Hugo Diniz Nephrology Department of Unidade Local de Saúde São João, Porto, Portugal https://orcid.org/0000-0002-8476-1338

DOI:

https://doi.org/10.71749/pkj.158

Keywords:

Angiotensin‑Converting Enzyme Inhibitors, Chelating Agents, Delphi Technique, Heart Failure, Hyperkalemia, Patient Care Team, Polyamines, Polymers, Potassium, Quality of Life, Renal Insufficiency, Chronic, Silicates

Abstract

Hyperkalemia (HK) is common in chronic kidney disease, heart failure, and other cardiovascular-kidney-metabolic (CKM) conditions, often impacting the use of guideline-directed medical therapies (GDMT). Despite scientific guidelines and available treatments, healthcare organization and care delivery also influence treatment patterns and quality of care for patients with HK.

This study aimed to develop consensus-based recommendations for HK management in Portugal, focusing on care organization, clinical practice, and treatment access, through a process that included regional multidisciplinary in-person meetings followed by a single-round modified Delphi panel. Afterwards, a focus group defined twenty-eight recommendations across three domains: A) healthcare organization and care pathways, B) clinical practice and therapeutic strategies, and C) access to potassium (K+) binders. The online questionnaire was distributed to nephrologists (NE), cardiologists (CA), internists (IM), and hospital pharmacists (PH).

Ninety-nine participants completed the survey (IM: 38.4% NE: 30.3% CA: 25.3% PH: 6.0%). Following a single Delphi round, all statements achieved high agreement (≥89%), with four unanimously approved. In domain A, structured care pathways, early clinical reassessment, and patient education were considered important. In domain B, panelists recognized the importance of integrated risk assessment, maintaining GDMT, and using new K+ binders in acute and chronic HK. In domain C, agreement was highest, with full consensus on ensuring treatment continuity and simplifying administrative procedures delaying therapy initiation.

The need for standardized approaches, improved multidisciplinary coordination, and preventive HK management in Portugal was consistently supported. This national consensus provides a framework for developing quality standards to improve patient outcomes and promote consistent HK care across Portuguese healthcare settings.

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Published

22-09-2026

Data Availability Statement

The data generated and analyzed during the current study are not publicly available due to confidentiality agreements and the nature of the Delphi process.

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Original Article

How to Cite

A Portuguese Modified Delphi Consensus on Quality Standards for Hyperkalemia Management in Portugal. (2026). Portuguese Kidney Journal. https://doi.org/10.71749/pkj.158

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