by Masahiro Nakamori, Naohisa Hosomi, Hiromi Nishi, Shiro Aoki, Tomohisa Nezu, Yuji Shiga, Naoto Kinoshita, Kenichi Ishikawa, Eiji Imamura, Tomoaki Shintani, Hiroki Ohge, Hiroyuki Kawaguchi, Hidemi Kurihara, Shinichi Wakabayashi, Hirofumi Maruyama
To assess the influence of periodontal disease on cerebral hemorrhage and its clinical course, we examined the association of the serum IgG titer of periodontal pathogens with hemorrhage growth and 3-month outcome. We consecutively enrolled 115 patients with acute cerebral hemorrhage (44 females, aged 71.3 ± 13.1 years) and used ELISA to evaluate the serum IgG titers of 9 periodontal pathogens:
Porphyromonas gingivalis,
Aggregatibacter (
A.)
actinomycetemcomitans,
Prevotella intermedia,
Prevotella nigrescens,
Fusobacterium (
F.)
nucleatum,
Treponema denticola,
Tannerella forsythensis,
Campylobacter rectus, and
Eikenella corrodens. Significant hematoma growth was defined as an increase in the volume of >33% or an absolute increase in the volume of >12.5 mL. A poor outcome was defined as a 3 or higher on the modified Rankin Scale. We observed hemorrhage growth in 13 patients (11.3%). Multiva riate analysis revealed that increased IgG titers of
A.
actinomycetemcomitans independently predicted the elevated hemorrhage growth (odds ratio 5.26, 95% confidence interval 1.52–18.25,
p = 0.01). Notably, augmented IgG titers of
F.
nucleatum but not
A.
actinomycetemcomitans led to a poorer 3-month outcome (odds ratio 7.86, 95% confidence interval 1.08–57.08,
p = 0.04). Thus, we demonstrate that elevated serum IgG titers of
A.
actinomycetemcomitans are an independent factor for predicting cerebral hemorrhage growth and that high serum IgG titers of
F.
nucleatum may predict a poor outcome in patients with this disease. Together, these novel data reveal how systemic periodontal pathogens may affect stroke patients, and, should, therefore, be taken into consideration in the management and treatment of these individuals.
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