Are streptococci involved in ischaemic stroke?

The bacteria appear to be concentrated in aspirated clots

Streptococcal bacteria, normally found in the mouth, have been found in thrombi taken from the brain arteries of acute ischaemic stroke patients, suggesting a possible link.

Streptococcus bacteria

The research may help explain associations found between gum disease and ischaemic stroke, and underlines the importance of good dental care for stroke prevention, the Finnish authors say.

In the study, the thrombi, extracted by mechanical thrombectomy of 75 patients (mean age 67) with acute ischaemic stroke, were examined by quantitative PCR,

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