Amifostine-Related Fever-Rash During Fractionated Radiotherapy: Diagnostic and Predictive Role of C-Reactive Protein.
Summary of "Amifostine-Related Fever-Rash During Fractionated Radiotherapy: Diagnostic and Predictive Role of C-Reactive Protein."
: Fever/rash is a side-effect of amifostine that demands immediate interruption of the drug. Here, we focus on the role of C-reactive protein (CRP) as a putative marker linked with amifostine fever/rash. MATERIALS AND
: The CRP serum values were analyzed in 496 patients receiving radiotherapy supported with amifostine (500-1000 mg/d). CRP levels were recorded before the onset of radiotherapy (day 0), on day 15 and when the fever/rash appeared. For 121 out of 496 patients, CRP values on day 7 were also available. About 79 patients (15.9%) developed fever/rash symptoms.
: The CRP levels before the onset of therapy were 0 to 20.7 mg/dL (normal, ≤0.5 mg/dL). For patients who did not develop fever/rash, the CRP levels increased from a median of 0.30 to 0.50 on day 15; P = 0.001. Patients who developed fever/rash showed a more than 7-fold increase of the median CRP levels (median, 3.50; P < 0.0001). This sharp CRP rise was specific for amifostine-related fever/rash. Initially abnormal CRP levels were linked with a 2-fold risk for fever/rash (P = 0.01), while abnormal levels on day 7 were linked with a 3-fold higher risk (P = 0.08). The occurrence of fever/rash was independent of the amifostine dose level.
: Sharp rise of CRP levels on the day after the fever/rash development suggest amifostine-related etiology of fever/rash. Abnormal initial CRP levels and/or high CRP levels on day 7 should be considered as an alert signal as the probability to develop fever/rash reaches the 30%.
From the Departments of *Radiotherapy/Oncology, †Internal Medicine, ‡Pathology, and §Biochemistry, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece.
This article was published in the following journal.
Name: American journal of clinical oncology
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20838325
- DOI: http://dx.doi.org/10.1097/COC.0b013e3181dea7bd
Medical and Biotech [MESH] Definitions
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