MALE SEX IS ASSOCIATED WITH INCREASED RISK OF BONE MARROW HARVEST CONTAMINATION
Introduction: Hematopoietic cell transplantation remains the definitive therapeutic modality for numerous malignant and non-malignant hematologic disorders. However, microbial contamination of bone marrow harvests may present an inherent risk to immunocompromised transplant recipients. This study so...
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Published in | Cytotherapy (Oxford, England) Vol. 26; no. 6; pp. S101 - S102 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
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Elsevier Inc
01.06.2024
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Abstract | Introduction: Hematopoietic cell transplantation remains the definitive therapeutic modality for numerous malignant and non-malignant hematologic disorders. However, microbial contamination of bone marrow harvests may present an inherent risk to immunocompromised transplant recipients. This study sought to identify factors associated with bone marrow contamination.
We analyzed a single institution dataset comprising 667 unique bone marrow harvests collected between 1999 and 2021. We trended the yearly microbial contamination rate over this time span. Harvest type, age, sex, physician experience, total nucleated cell (TNC) count, volume collected, and TNC concentration were included in a univariate (UV) and multivariate (MV) logistic model to assess which factors were associated with contamination.
Males comprised 55.8% of the population and the median age of the cohort was 35 [IQR: 27-45]. There were 19 autologous, 151 related allogenic, and 497 unrelated allogenic transplants in this cohort. 87 of the 667 harvests were contaminated and essentially all contaminants were common skin flora. The yearly contamination rates displayed substantial variability, ranging from 0% to 42.9%, with no discernible trend. Harvest type did not exhibit a statistically significant association with contamination risk. However, male sex was found to be significantly associated with a higher contamination rate (18%) compared to female sex (6.8%, p < 0.001). In both UV and MV logistic models, male sex emerged as the sole factor linked to contamination risk (OR: 2.90, 95% CI: 1.65 – 5.35).
This study represents the largest single site retrospective investigation of bone marrow harvest microbial contamination rates. Notably, it is the first to establish an association between contamination and male sex. We propose that this association may be attributed to differences in skin flora composition or innate immune function between sexes, or possibly the result of the frequent clipping of hair in males prior to the harvest procedure. Further research is warranted to explore the underlying mechanisms and clinical implications of this novel finding. |
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AbstractList | Introduction: Hematopoietic cell transplantation remains the definitive therapeutic modality for numerous malignant and non-malignant hematologic disorders. However, microbial contamination of bone marrow harvests may present an inherent risk to immunocompromised transplant recipients. This study sought to identify factors associated with bone marrow contamination.
We analyzed a single institution dataset comprising 667 unique bone marrow harvests collected between 1999 and 2021. We trended the yearly microbial contamination rate over this time span. Harvest type, age, sex, physician experience, total nucleated cell (TNC) count, volume collected, and TNC concentration were included in a univariate (UV) and multivariate (MV) logistic model to assess which factors were associated with contamination.
Males comprised 55.8% of the population and the median age of the cohort was 35 [IQR: 27-45]. There were 19 autologous, 151 related allogenic, and 497 unrelated allogenic transplants in this cohort. 87 of the 667 harvests were contaminated and essentially all contaminants were common skin flora. The yearly contamination rates displayed substantial variability, ranging from 0% to 42.9%, with no discernible trend. Harvest type did not exhibit a statistically significant association with contamination risk. However, male sex was found to be significantly associated with a higher contamination rate (18%) compared to female sex (6.8%, p < 0.001). In both UV and MV logistic models, male sex emerged as the sole factor linked to contamination risk (OR: 2.90, 95% CI: 1.65 – 5.35).
This study represents the largest single site retrospective investigation of bone marrow harvest microbial contamination rates. Notably, it is the first to establish an association between contamination and male sex. We propose that this association may be attributed to differences in skin flora composition or innate immune function between sexes, or possibly the result of the frequent clipping of hair in males prior to the harvest procedure. Further research is warranted to explore the underlying mechanisms and clinical implications of this novel finding. |
Author | Somasundaram, E. Spitzer, T. Gill, R. Collier, K. Hartford, N. Chen, Y. |
Author_xml | – sequence: 1 givenname: E. surname: Somasundaram fullname: Somasundaram, E. organization: Medicine, Massachusetts General Hospital, Boston, MA, United States – sequence: 2 givenname: Y. surname: Chen fullname: Chen, Y. organization: Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA, United States – sequence: 3 givenname: R. surname: Gill fullname: Gill, R. organization: Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA, United States – sequence: 4 givenname: N. surname: Hartford fullname: Hartford, N. organization: Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA, United States – sequence: 5 givenname: K. surname: Collier fullname: Collier, K. organization: Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA, United States – sequence: 6 givenname: T. surname: Spitzer fullname: Spitzer, T. organization: Hematopoietic Cell Transplant and Cellular Therapy Program, Massachusetts General Hospital, Boston, MA, United States |
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Title | MALE SEX IS ASSOCIATED WITH INCREASED RISK OF BONE MARROW HARVEST CONTAMINATION |
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