Dynamic changes of peripheral blood lymphocyte subsets in acute ischemic stroke and prognostic value.

The frequencies of T cells, Th cells, and Ts cells in AIS are declined dramatically at least 14 days after stroke. Lower frequencies of T cells and Ts cells on day 8-14 after stroke represent more severe disease conditions, and the percentages of T cells and Th cells within 72 hr after stroke are negatively correlated with 3-month outcomes, which might have a potential for predicting long-term prognosis of stroke.