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Antibiotic prophylaxis with meropenem after allogeneic stem cell transplantation
J A Pérez-Simón1, I García-Escobar, J Martinez
1Servicio de Hematología, Hospital Universitario de Salamanca, Paseo de San Vicente, s.n 37007 Salamanca, Spain. pesimo@usal.es
Bone Marrow Transplantation
|December 3, 2003
Summary
Prophylactic meropenem use in allogeneic transplant patients reduced febrile episodes and antibiotic needs. This strategy may decrease procedural morbidity during neutropenia.
Area of Science:
- Hematology
- Infectious Diseases
- Transplant Medicine
Background:
- Allogeneic hematopoietic stem cell transplantation (HSCT) carries a high risk of infection and febrile episodes due to profound neutropenia.
- Empirical antibiotic therapy is standard, but strategies to reduce antibiotic exposure and associated resistance are crucial.
Purpose of the Study:
- To evaluate the efficacy of prophylactic meropenem administration in patients undergoing matched related donor allogeneic transplantation.
- To compare outcomes between early meropenem treatment initiation versus prophylactic use during neutropenia.
Main Methods:
- A pilot study involving 38 patients undergoing allogeneic transplantation.
- Patients were divided into two groups: Group A received meropenem upon the first febrile episode, while Group B received prophylactic meropenem starting with granulocyte counts <500/mm³.
- Treatment continued until fever resolution or granulocyte recovery >500/mm³.
Main Results:
- Fever developed in 94% of Group A patients versus 76% in Group B (P=0.02).
- Significantly fewer patients in Group B required first-line (33% vs. 6%) and second-line (52% vs. 11%) antibiotic therapy compared to Group A (P=0.01 and P=0.04, respectively).
- Multivariate analysis indicated that meropenem prophylaxis (HR=2.83) and early disease status at transplant (HR=0.15) were significant factors influencing fever development.
Conclusions:
- Prophylactic meropenem administration during neutropenia in allogeneic transplant recipients appears to favorably impact procedural morbidity.
- This strategy may reduce the incidence of febrile episodes and the need for broad-spectrum antibiotic use.
- Further prospective studies are warranted to confirm these findings.