Yoshimi Hida1, Tomoko Nishida2, Chie Taniguchi3, Hisataka Sakakibara4,5. 1. Department of Nursing, Nagoya University Graduate School of Medicine, Daiko-Minami, Higashi-ku, Nagoya, 461-8673, Japan. hida@n-fukushi.ac.jp. 2. Department of Nursing, Sugiyama Jogakuen University, Nagoya, Japan. 3. College of Nursing, Aichi Medical University, Nagakute, Japan. 4. School of Nursing, Ichinomiya Kenshin College, Ichinomiya, Japan. 5. Emeritus Professor, Nagoya University, Nagoya, Japan.
Abstract
BACKGROUND: Increasing incidences of swallowing dysfunction, or dysphagia, a risk factor for aspiration pneumonia, are being reported in aging populations. AIMS: To investigate the relationship between swallowing function and oral bacteria in independent, community-dwelling elderly. METHODS: This study recruited 139 community-dwelling individuals aged ≥ 70 years with poor swallowing function. The presence of anaerobic (Prevotella spp. and Fusobacterium spp.) and aerobic bacteria was examined in the participants' oral cavity flora. Swallowing function was evaluated using a 30 mL water swallowing test. Multivariate logistic regression analyses were performed to examine the association between oral bacteria and swallowing function. RESULTS: Swallowing function was assessed as abnormal in 2.9% and as abnormal in 47.5% of the subjects. The colony-forming units (CFUs/ml) of Prevotella spp. were associated with the swallowing dysfunction (odds ratio [OR] 3.45, 95% confidence interval [CI] 1.49-8.11). Further, CFUs/ml of Fusobacterium spp. and aerobes did not correlate with the swallowing dysfunction but were related with the number of teeth (OR 2.71; 95% CI 1.28-5.74, and OR 0.40; 95% CI, 0.18-0.91, respectively) CONCLUSIONS: Swallowing dysfunction in community-dwelling elderly is associated with increased abundance of Prevotella spp., which indirectly may be an increased risk factor for aspiration pneumonia.
BACKGROUND: Increasing incidences of swallowing dysfunction, or dysphagia, a risk factor for aspiration pneumonia, are being reported in aging populations. AIMS: To investigate the relationship between swallowing function and oral bacteria in independent, community-dwelling elderly. METHODS: This study recruited 139 community-dwelling individuals aged ≥ 70 years with poor swallowing function. The presence of anaerobic (Prevotella spp. and Fusobacterium spp.) and aerobic bacteria was examined in the participants' oral cavity flora. Swallowing function was evaluated using a 30 mL water swallowing test. Multivariate logistic regression analyses were performed to examine the association between oral bacteria and swallowing function. RESULTS: Swallowing function was assessed as abnormal in 2.9% and as abnormal in 47.5% of the subjects. The colony-forming units (CFUs/ml) of Prevotella spp. were associated with the swallowing dysfunction (odds ratio [OR] 3.45, 95% confidence interval [CI] 1.49-8.11). Further, CFUs/ml of Fusobacterium spp. and aerobes did not correlate with the swallowing dysfunction but were related with the number of teeth (OR 2.71; 95% CI 1.28-5.74, and OR 0.40; 95% CI, 0.18-0.91, respectively) CONCLUSIONS:Swallowing dysfunction in community-dwelling elderly is associated with increased abundance of Prevotella spp., which indirectly may be an increased risk factor for aspiration pneumonia.
Authors: C D van der Maarel-Wierink; J N O Vanobbergen; E M Bronkhorst; J M G A Schols; C de Baat Journal: J Dent Res Date: 2011-09-22 Impact factor: 6.116
Authors: Rainer Wirth; Rainer Dziewas; Anne Marie Beck; Pere Clavé; Shaheen Hamdy; Hans Juergen Heppner; Susan Langmore; Andreas Herbert Leischker; Rosemary Martino; Petra Pluschinski; Alexander Rösler; Reza Shaker; Tobias Warnecke; Cornel Christian Sieber; Dorothee Volkert Journal: Clin Interv Aging Date: 2016-02-23 Impact factor: 4.458