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Bone mineral density after allogeneic bone marrow transplantation.

M Kauppila¹, K Irjala, P Koskinen

¹Department of Medicine, Turku University Central Hospital, Turku, Finland.

Bone Marrow Transplantation

|October 12, 1999

Summary

Bone marrow transplantation (BMT) patients often develop bone disease, with reduced bone mineral density (BMD) and increased bone turnover markers like ICTP and BAP. Regular BMD monitoring and these markers are crucial for managing osteoporosis risk post-BMT.

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Area of Science:

Endocrinology
Hematology
Orthopedics

Background:

Allogeneic bone marrow transplantation (BMT) can significantly impact skeletal health.
Long-term effects of BMT on bone metabolism are not fully understood.

Purpose of the Study:

To assess bone mineral density (BMD) and bone turnover markers in adult patients post-BMT.
To identify correlations between bone health and transplantation-related factors.

Main Methods:

Studied 25 adult BMT patients (mean age 42) at least 1 year post-transplant.
Measured lumbar BMD using computed tomography (Z-scores).
Evaluated biochemical markers of skeletal turnover, including ICTP and BAP.

Main Results:

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20% of patients had Z-scores <-2.5 s.d., and 48% had scores between -1 and -2.5 s.d.

Bone density reduction primarily occurred during/shortly after BMT and stabilized.

ICTP and BAP showed negative correlations with BMD (P=0.045 and P=0.002, respectively).

Conclusions:

Bone disease is prevalent after BMT, characterized by increased bone turnover and osteoporosis risk.
Regular BMD monitoring is recommended.
Collagen markers (ICTP, BAP) aid in assessing bone disease activity post-BMT.