Annals of Oncology Advance Access originally published online on February 13, 2008
Annals of Oncology 2008 19(5):970-976; doi:10.1093/annonc/mdm595
hematologic malignancies |
Prognostic significance of serial determinations of lactate dehydrogenase (LDH) in the follow-up of patients with myelodysplastic syndromes
1 Department of Internal Medicine I, Division of Hematology and Hemostaseology
2 Institute of Environmental Health
3 Department of Medical Genetics
4 Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Vienna, Austria
* Correspondence to: Dr P. Valent, Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. Tel: +43-1-40400-6085; Fax: +43-1-40400-4030; E-mail: peter.valent{at}meduniwien.ac.at
Background: Early recognition of disease progression in low-risk myelodysplastic syndromes (MDS) is an important decision point concerning intensive therapies. In a screen program searching for dynamic prognostic determinants, we have identified lactate dehydrogenase (LDH) as a most suitable follow-up parameter.
Patients and methods: LDH levels were serially determined in 221 patients with de novo MDS (median age 70 years, range 24–94). The increase in LDH was correlated with survival and acute myeloid leukemia (AML) evolution.
Results: Confirming previous data, an elevated LDH at diagnosis was found to be associated with an increased probability of AML evolution and decreased probability of survival (P < 0.05). In the follow-up, we found that in patients who progressed (to higher IPSS category or AML), LDH levels were significantly higher in the two 3-month period preceding progression compared with the initial two 3-month period (P < 0.005). In a subgroup of patients, the increase in LDH was accompanied or followed by other signs of disease progression, such as occurrence of thrombocytopenia or appearance of circulating blasts. In multivariate analyses, the LDH increase was found to be an independent prognostic variable.
Conclusions: LDH is an interesting follow-up parameter in MDS, which may assist in early recognition of disease progression and thus help in risk stratification and patient selection for interventional therapies.
Key words: IPSS, LDH, MDS, prognosis
Received for publication September 14, 2007. Revision received November 14, 2007. Accepted for publication December 13, 2007.
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