Reducing infectious complications after allogeneic stem cell transplant.

Area of Science:

• Hematology
• Infectious Diseases
• Transplant Immunology

Background:

• Infections pose a significant threat to patients undergoing allogeneic hematopoietic stem-cell transplant (HSCT).
• Reducing infectious complications is crucial for improving patient outcomes.
• Despite advances, infections remain a leading cause of morbidity and mortality post-HSCT.

Purpose of the Study:

• To review the epidemiology, risk factors, and prevention of infections following allogeneic HSCT.
• To synthesize current knowledge on bacterial, fungal, and viral infections in HSCT recipients.
• To highlight emerging areas, such as the role of gut microbiota, in infection risk.

Main Methods:

• Systematic literature review of PubMed database (November 2019 - January 2020).
• Keywords included: stem-cell transplantation, infection, fungal, bacterial, viral, prophylaxis, vaccines, prevention.
• Publications were reviewed, and findings were categorized into bacterial, fungal, and viral infections.

Main Results:

• Infections present with distinct patterns and risk factors in early, intermediate, and late post-transplant phases.
• Advances in diagnostics, preemptive therapies, and prophylaxis have improved infection management.
• The gut microbiota is increasingly recognized for its role in modulating infection risk.

Conclusions:

• Effective prevention and management of infections are vital in allogeneic HSCT.
• Continued research into risk factors, including the gut microbiome, is needed.
• Multifaceted strategies are essential to minimize infectious complications and improve survival rates.