# Decoding prognostic factors in SARS-CoV-2 complications among patients with hematological disorders

## TL;DR

This study identifies key biomarkers like ferritin and interferon-γ that predict severe SARS-CoV-2 outcomes in patients with blood disorders, offering insights for personalized care.

## Contribution

The study reveals novel associations between elevated ferritin, interferon-γ, and coagulation markers with SARS-CoV-2 severity in hematological patients.

## Key findings

- Elevated ferritin levels strongly predict the development of SARS-CoV-2 pneumonia in hematological patients.
- High serum interferon-γ concentrations correlate with increased disease severity in these patients.
- B-cell-targeted therapy or cytotoxic chemotherapy reduces the risk of severe SARS-CoV-2 infections.

## Abstract

•This study addresses the critical prognostic factors for SARS-CoV-2 complications in hematological patients, a high-risk population with reported mortality rates up to 31 %.•Through a retrospective analysis of 71 hematology inpatients (November 2022–March 2023), elevated ferritin levels emerged as a robust predictor of COVID-19 pneumonia development (p = 0.016), while heightened serum interferon-γ concentrations correlated strongly with disease severity (p = 0.048).•Mortality risk was significantly associated with elevated neutrophil counts, ferritin, D-dimer, and fibrin degradation products (p < 0.05). Notably, patients with myeloid malignancies in complete remission exhibited increased pneumonia susceptibility (p = 0.012), suggesting post-treatment immune vulnerability.•Conversely, B-cell-targeted therapy or cytotoxic chemotherapy markedly reduced severe infection rates (p = 0.024).•These findings fill critical gaps in prognostic assessment for hematological patients with SARS-CoV-2 co-infection and establish a scientific foundation for personalized monitoring through multidimensional biomarker analysis (e.g., iron metabolism, coagulation profiles, cytokine dynamics), directly informing optimized management strategies for high-risk populations.CLINICS-D-23–00783_Original Article.

This study addresses the critical prognostic factors for SARS-CoV-2 complications in hematological patients, a high-risk population with reported mortality rates up to 31 %.

Through a retrospective analysis of 71 hematology inpatients (November 2022–March 2023), elevated ferritin levels emerged as a robust predictor of COVID-19 pneumonia development (p = 0.016), while heightened serum interferon-γ concentrations correlated strongly with disease severity (p = 0.048).

Mortality risk was significantly associated with elevated neutrophil counts, ferritin, D-dimer, and fibrin degradation products (p < 0.05). Notably, patients with myeloid malignancies in complete remission exhibited increased pneumonia susceptibility (p = 0.012), suggesting post-treatment immune vulnerability.

Conversely, B-cell-targeted therapy or cytotoxic chemotherapy markedly reduced severe infection rates (p = 0.024).

These findings fill critical gaps in prognostic assessment for hematological patients with SARS-CoV-2 co-infection and establish a scientific foundation for personalized monitoring through multidimensional biomarker analysis (e.g., iron metabolism, coagulation profiles, cytokine dynamics), directly informing optimized management strategies for high-risk populations.CLINICS-D-23–00783_Original Article.

Within the intricate tapestry of the global SARS-CoV-2 pandemic, this study delves into the intricate interplay of clinical data to elucidate prognostic factors associated with complications in patients concomitantly afflicted with hematological disorders and SARS-CoV-2. An exhaustive analysis of 71 individuals, spanning the period from November 2022 to March 2023, aims to unveil distinctive clinical characteristics and explicate the nuanced determinants steering the trajectory of the disease. The updated findings reveal a multi-faceted correlation, underscoring the complex interplay of clinical parameters. Among individuals with hematological disorders, anomalously elevated ferritin levels are closely associated with the development of SARS-CoV-2 pneumonia, while interferon-γ is intricately linked to the severity of SARS-CoV-2. Conversely, elevated ferritin levels, increased D-dimer and fibrin degradation products, along with significantly elevated iron levels, manifest a significant association with patient mortality. Intriguingly, those in patients in complete hematologic remission confront an augmented risk of developing SARS-CoV-2 pneumonia, while those abstaining from anti-tumor treatments exhibit mitigated case severity. This study unveils the intricate interplay of clinical factors impacting the prognosis of SARS-CoV-2 complications in individuals with hematological disorders. The cognizance of aberrant interferon-γ activation and nuanced associations with ferritin, iron levels, and coagulation markers contributes to a more holistic comprehension of the prognostic landscape.