Infectious gastroenteritis in bone-marrow-transplant recipients

Area of Science:

• Infectious Diseases
• Hematology
• Transplantation Medicine

Background:

• Bone-marrow transplantation (BMT) recipients are immunocompromised, increasing susceptibility to infections.
• Gastrointestinal infections can lead to significant morbidity and mortality in this vulnerable population.

Purpose of the Study:

• To prospectively evaluate the incidence of gastrointestinal pathogen infections in BMT patients.
• To correlate these infections with patient morbidity and mortality outcomes.

Main Methods:

• Prospective evaluation of 78 patients undergoing BMT.
• Identification of enteric pathogens including adenovirus, rotavirus, coxsackievirus, and Clostridium difficile.
• Correlation of infection status with clinical outcomes such as diarrhea, abdominal cramps, and mortality.

Main Results:

• 40% of patients (31/78) acquired infections with one or more enteric pathogens.
• Adenovirus and Clostridium difficile were the most common pathogens identified.
• Infected patients experienced higher rates of diarrhea and abdominal cramps.
• Mortality rate was significantly higher in infected patients (55%) compared to non-infected patients (13%) (P < 0.001).

Conclusions:

• Enteric pathogens, typically causing mild illness, can lead to severe infections in BMT recipients.
• These infections are associated with increased morbidity and mortality post-transplantation.
• Preventive and therapeutic strategies targeting these pathogens may improve outcomes for BMT patients.