Outcomes and mortality in calciphylaxis: A multicenter update

Colleen M. Glennon, Joyce Xia, Lindsay Strowd, Arturo R. Dominguez, Dylan Haynes, Jesse Keller, Joseph J. Locascio, Robert G. Micheletti, Alex G. Ortega Loayza, Helena B. Pasieka, Michi M. Shinohara, Alice J. Tan, Sagar U. Nigwekar, Daniela Kroshinsky*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

BACKGROUND: Current understanding of calciphylaxis pathogenesis and treatment has advanced, with lower mortality.

OBJECTIVE: To provide an updated report of calciphylaxis risk factors and outcomes in a large and diverse multicenter American validated cohort.

METHODS: This was a multicenter, retrospective observational study across 6 major academic institutions. Adult patients with a clinical diagnosis of calciphylaxis from January 1, 2006, to December 31, 2022, were included.

RESULTS: A total of 268 patients were included. Nephrogenic cases comprised 84.62% (209) of patients, while non-nephrogenic cases comprised 15.38% (38) of patients. Seventy-five patients (27.98%) died of calciphylaxis-related causes. One-year and 2-year disease-specific mortality was 28.88% and 29.92%, respectively. Penile lesions (penile vs distal: hazard ratio [HR]: 11.90, 95% CI: 2.44-44.85, P = .04), history of atrial fibrillation (HR: 2.41, 95% CI: 1.36-4.35, P < .01), and dialysis at diagnosis (HR: 2.02, 95% CI: 1.10-3.95, P = .03) were associated with higher mortality, while distal lesions were associated with lower mortality (distal vs proximal: HR: 0.34, 95% CI: 0.18-0.62, P = .04).

LIMITATIONS: Limitations of this study included its retrospective nature, limited representation of non-White or Black ethnicities, and outsized representation of 1 academic center.

CONCLUSION: While differences in survival emerged between institutions, the overall 1-year disease-specific mortality of 28.88% is lower than historic (45% to 80%), suggesting better patient outcomes with time.

Original languageEnglish
Pages (from-to)966-974
Number of pages9
JournalJournal of the American Academy of Dermatology
Volume93
Issue number4
DOIs
StatePublished - Oct 2025

Keywords

  • Adult
  • Aged
  • Calciphylaxis/mortality
  • Female
  • Humans
  • Male
  • Middle Aged
  • Renal Dialysis/statistics & numerical data
  • Retrospective Studies
  • Risk Factors
  • United States/epidemiology

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