Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/13/2025

Primary Cause of Death in Dyskeratosis Congenita

Understanding the Mortality Landscape

  • Bone marrow failure represents the principal cause of premature mortality in patients with dyskeratosis congenita, occurring as the natural progression of the disease 1, 2
  • Pulmonary complications, particularly pulmonary fibrosis, emerge as a major cause of death, especially in late adolescence or early adulthood 1, 2
  • Malignant transformation contributes to mortality, with increased risk of myelodysplastic syndrome, leukemia, and head and neck squamous cell carcinoma 2

Clinical Context and Pathophysiology

  • All patients with dyskeratosis congenita have telomeres below the first percentile for age, leading to progressive hematopoietic failure 1, 2
  • The bone marrow failure typically manifests as progressive pancytopenia affecting multiple cell lines 2, 3
  • This creates vulnerability to life-threatening infections and bleeding complications even before other organ systems become critically affected 2, 3

Mortality Risks

  • The multisystem nature of dyskeratosis congenita means that patients face competing mortality risks from pulmonary fibrosis, liver cirrhosis, and malignancy 1, 2