Clinical Edge

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Exercise and Sickle Cell Anemia

Is taking it easy the way to go?

Maximal exercise may not be associated with any greater escalation of endothelial activation or inflammation in sickle cell anemia (SCA), according to a study of children with SCA and matched controls. Researchers found:

• Despite higher baseline levels of all biomarkers except C-reactive protein (CRP), the acute phase response from baseline to immediately after exercise was significantly greater in patients vs controls for CRP (2.1 vs 0.2 mg/l) and D-dimer (160 vs 10 mg/l).

• Similar between-group trends were seen over time for all biomarkers, including sVCAM, IL6, total WBC, CRP, and D-dimer.

• Lower fitness, defined by peak oxygen consumption, was independently associated with greater acute phase response to exercise for sVCAM.

Citation: Liem RI, Onyejekwe K, Olszewski M, et al. The acute phase inflammatory response to maximal exercise testing in children and young adults with sickle cell anaemia. [Published online ahead of print October 12, 2015]. Br J Haematol. doi: 10.1111/bjh.13782.