Unclassifiable myelodysplastic disease: a clinical case report

Authors

  • Melissa Nicole Alcázar Zambrano Investigador Independiente https://orcid.org/0009-0004-5703-3062
  • Bryan Steeven Macías Macías Hospital General del Sur de Quito, IESS image/svg+xml
  • Viviana Gricelda Vélez Navarrete Centro de Salud Estancia Vieja
  • Katherine Rocio Lascano Molina Investigador Independiente

DOI:

https://doi.org/10.55204/trc.v6i2.e743

Keywords:

Myelodysplastic syndrome, Nursing care process, Severe anemia, Azacitidine, Hyperleukocytosis

Abstract

Myelodysplastic syndromes are clonal hematological neoplasms characterized by ineffective hematopoiesis and cytopenias, unclassifiable variants represent a diagnostic challenge due to their atypical manifestations and inconsistencies in current classification systems. Objective: To present the clinical case of a patient with unclassified myelodysplastic/myeloproliferative neoplasm and to evaluate the impact of an individualized care plan based on the Nursing Care Process. Methodology: Descriptive, qualitative and cross-sectional study of clinical case report in a hospital in Manabí. The clinical history of a 58-year-old man with severe anemia and hyperleukocytosis was analyzed, structuring nursing interventions using the NANDA-I, NOC and CIN taxonomies. Results: Grade IV severe anemia (Hb: 6.0 g/dL) and hyperleukocytosis (81,900 /μL) were identified. The application of ECP by guided transfusion support restored hemodynamic stability and tissue perfusion (HR: 78 bpm, SpO₂: 98%). Prophylaxis with allopurinol and hyperhydration prevented tumor lysis syndrome during azacitidine administration, achieving a favorable clinical outcome without infectious events or serious toxicities. Conclusion: Structured ECP allowed for effective comprehensive management, stabilizing complex cytopenias and preventing metabolic and infectious complications, which facilitated safe hospital discharge to outpatient follow-up.

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References

1. Arber DA, Orazi A, Hasserjian R, Thiele J, Borowitz MJ, Le Beau MM, et al. The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia. Blood. 2016 May 19;127(20):2391–405. doi:10.1182/blood-2016-03-643544

2. Ogawa S. Genetics of MDS. Blood. 2019 Mar 7;133(10):1049–59. doi:10.1182/blood-2018-10-844621

3. Cazzola M. Myelodysplastic Syndromes. New England Journal of Medicine. 2020 Oct;383(14):1358–74. doi:10.1056/NEJMra1904794

4. Zeidan AM, Shallis RM, Wang R, Davidoff A, Ma X. Epidemiology of myelodysplastic syndromes: Why characterizing the beast is a prerequisite to taming it. Blood Rev. 2019 Mar;34:1–15. doi:10.1016/j.blre.2018.09.001

5. Cogle CR. Incidence and Burden of the Myelodysplastic Syndromes. Curr Hematol Malig Rep. 2015 Sep 2;10(3):272–81. doi:10.1007/s11899-015-0269-y

6. Steensma DP. Myelodysplastic syndromes current treatment algorithm 2018. Blood Cancer J. 2018 May 24;8(5):47. doi:10.1038/s41408-018-0085-4

7. Valent P, Horny HP, Bennett JM, Fonatsch C, Germing U, Greenberg P, et al. Definitions and standards in the diagnosis and treatment of the myelodysplastic syndromes: Consensus statements and report from a working conference. Leuk Res. 2007 Jun;31(6):727–36. doi:10.1016/j.leukres.2006.11.009

8. Khoury JD, Solary E, Abla O, Akkari Y, Alaggio R, Apperley JF, et al. The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Myeloid and Histiocytic/Dendritic Neoplasms. Leukemia. 2022 Jul 22;36(7):1703–19. doi:10.1038/s41375-022-01613-1

9. Arber DA, Orazi A, Hasserjian RP, Borowitz MJ, Calvo KR, Kvasnicka HM, et al. International Consensus Classification of Myeloid Neoplasms and Acute Leukemias: integrating morphologic, clinical, and genomic data. Blood. 2022 Sep 15;140(11):1200–28. doi:10.1182/blood.2022015850

10. Greenberg PL, Tuechler H, Schanz J, Sanz G, Garcia-Manero G, Solé F, et al. Revised International Prognostic Scoring System for Myelodysplastic Syndromes. Blood. 2012 Sep 20;120(12):2454–65. doi:10.1182/blood-2012-03-420489

11. Bernard E, Tuechler H, Greenberg PL, Hasserjian RP, Arango Ossa JE, Nannya Y, et al. Molecular International Prognostic Scoring System for Myelodysplastic Syndromes. NEJM Evidence. 2022 Jun 28;1(7). doi:10.1056/EVIDoa2200008

12. INEC. VIII Censo de Población y VII de Vivienda 2022. Quito; 2022 Dec.

13. Khoury JD, Solary E, Abla O, Akkari Y, Alaggio R, Apperley JF, et al. The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Myeloid and Histiocytic/Dendritic Neoplasms. Leukemia. 2022 Jul 22;36(7):1703–19. doi:10.1038/s41375-022-01613-1

14. Arber DA, Orazi A, Hasserjian RP, Borowitz MJ, Calvo KR, Kvasnicka HM, et al. International Consensus Classification of Myeloid Neoplasms and Acute Leukemias: integrating morphologic, clinical, and genomic data. Blood. 2022 Sep 15;140(11):1200–28. doi:10.1182/blood.2022015850

15. Credland N, Gerber K. Humanizing critical care. Nurs Crit Care. 2021 Jul 29;26(4):222–3. doi:10.1111/nicc.12673

16. Rojas Corona L, Vidal Andrade E, Cerón Díaz UW. Índice de PaO<sub>2</sub>/FAO<sub>2</sub>: ¿un mejor indicador de oxigenación para valorar la hipoxemia? Resultados de un análisis de concordancia con el índice de PaO<sub>2</sub>/FiO<sub>2</sub> Medicina Crítica. 2023;37(1):21–5. doi:10.35366/109958

17. Escalante López JI, Medina Valderrama CJ, Vásquez Muñoz A. La deserción universitaria: un problema no resuelto en el Perú. Hacedor - AIAPÆC. 2023 Jun 30;7(1):60–72. doi:10.26495/rch.v7i1.2421

18. Demakos EP, Linebaugh JA. Advances in Myelodysplastic Syndrome: Nursing Implications of Azacitidine. Clin J Oncol Nurs. 2005 Aug 1;9(4):417–23. doi:10.1188/05.CJON.417-423

19. Instituto Nacional de Estadisticas y Censos. INEC revela principales causas de hospitalización en ecuador: cálculos biliares, neumonía y apendicitis lideran el ranking. Quito; 2025 Jul.

20. López Pino María José. Salud Pública En Ecuador Como Factor De Desarrollo Social: una revisión bibliográfica. Vol. 6. 2023 Jul;6(12):1–31.

21. Arber DA, Orazi A, Hasserjian RP, Borowitz MJ, Calvo KR, Kvasnicka HM, et al. International Consensus Classification of Myeloid Neoplasms and Acute Leukemias: integrating morphologic, clinical, and genomic data. Blood. 2022 Sep 15;140(11):1200–28. doi:10.1182/blood.2022015850

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Published

2026-10-09

Issue

Section

Original Research Articles

How to Cite

Alcázar Zambrano, M. N., Macías Macías, B. S., Vélez Navarrete, V. G., & Lascano Molina, K. R. (2026). Unclassifiable myelodysplastic disease: a clinical case report. Tesla Revista Científica, 6(2), e743. https://doi.org/10.55204/trc.v6i2.e743