著者
Satoru Ebihara Masahiro Kohzuki Yasunori Sumi Takae Ebihara
出版者
The Japanese Pharmacological Society
雑誌
Journal of Pharmacological Sciences (ISSN:13478613)
巻号頁・発行日
vol.115, no.2, pp.99-104, 2011 (Released:2011-02-18)
参考文献数
37
被引用文献数
33 44

Morbidity and mortality from aspiration pneumonia continues to be a major health problem in the elderly. A swallowing disorder, such as a delayed triggering of the swallowing reflex, exists in patients with aspiration pneumonia. We found that the swallowing reflex in elderly people was temperature-sensitive. The swallowing reflex was delayed when the temperature of the food was close to body temperature. The actual swallowing time shortened when the temperature difference increases. The improvement of swallowing reflex by temperature stimuli could be mediated by the temperature-sensitive transient receptor potential (TRP) channel. The administration of a pastille with capsaicin as an agonist stimulus of TRPV1, a warm-temperature receptor, decreased the delay in swallowing reflex. Food with menthol, an agonist of TRPM8, a cold-temperature receptor, also decreased the delay in swallowing reflex. Olfactory stimulation such as black pepper was useful to improve the swallowing reflex for people with low activity of daily living (ADL) levels or with decreased consciousness. Oral care also shortened the latent time of swallowing reflex presumably due to stimulating the nociception of the oral cavity. A combination of these sensory stimuli may improve the swallowing disorders and prevent aspiration pneumonia.
著者
Mitsutoshi Munakata Kaori Kobayashi Junko Niisato-Nezu Souichiro Tanaka Yosuke Kakisaka Takae Ebihara Satoru Ebihara Kazuhiro Haginoya Shigeru Tsuchiya Akira Onuma
出版者
Tohoku University Medical Press
雑誌
The Tohoku Journal of Experimental Medicine (ISSN:00408727)
巻号頁・発行日
vol.214, no.4, pp.327-332, 2008 (Released:2008-04-26)
参考文献数
15
被引用文献数
18 24

Patients with severe neurological disorders often require enteral nutrition (EN). Since long-term EN can cause multiple complications, reinstating the oral intake of food is beneficial. Olfactory stimulation using black pepper oil (BPO), a strong appetite stimulant, was reported to facilitate swallowing in older people. Therefore, the effects of olfactory stimulation with BPO were investigated in pediatric patients receiving long-term EN due to neurological disorders. The effects of scenting with BPO for 1 min immediately before every meal were evaluated in ten patients: 4 boys and 6 girls, aged 19-97 months (51 ± 26 months). The neurological disorders included periventricular leukomalacia (3 patients), hypoxic ischemic encephalopathy (3), Costello syndrome (1), Russell-Silver syndrome (1), Miller-Dieker syndrome (1), and cerebral palsy of unknown etiology (1). In eight of these patients, BPO intervention was continued for 3 months. Five of these eight patients showed increases in the amount of oral intake with desirable effects including facilitated swallowing movement, although complete elimination of the need for EN was not achieved. In the other three patients, BPO intervention was not effective; severe cerebral tissue loss, profound malformation or intractable seizures seemed to reduce the efficacy of BPO. In two cases, BPO intervention was discontinued due to cough or because the odor of BPO was unbearable to the family. In conclusion, olfactory stimulation with BPO facilitated oral intake in a subset of patients on long-term EN. BPO stimulation may be useful for facilitating oral intake when used in combination with conventional methods.
著者
Hiroyuki Arai Mutsuo Yamaya Takashi Ohrui Satoru Ebihara Takae Ebihara Kazushi Nakajo Hidetada Sasaki
出版者
The Japan Society of Logopedics and Phoniatrics
雑誌
The Japan Journal of Logopedics and Phoniatrics (ISSN:00302813)
巻号頁・発行日
vol.43, no.4, pp.467-472, 2002-10-20 (Released:2010-06-22)
参考文献数
19
被引用文献数
1 2

誤嚥性肺炎を発症する高齢者では, 高率に脳血管障害, 特に大脳基底核領域に脳梗塞が見出される.この場合の脳梗塞は, 新しいものであっても陳旧性のものであっても, また症候性であっても無症候性であっても構わない.このような患者では, 嚥下反射と咳反射の両者の低下により, 誤嚥特に夜間の不顕性誤嚥により肺炎の成立にいたると考えられる.嚥下反射と咳反射は, 少なくとも2つの神経伝達物質, すなわちドーパミンとサブスタンス-Pによって支えられている.進行したアルツハイマー病患者も大脳基底核障害などにより誤嚥性肺炎を発症する.進行したアルツハイマー病患者において, major tranquilizerの使用と無症候性脳梗塞の合併は誤嚥性肺炎を誘発する危険因子であるため問題行動に対するmajor tranquilizerの使用には細心の注意が要求される.塩酸アマンタジン, ACE阻害薬, 抗血小板剤の使用また歯ブラシなどによる簡便な口腔ケアは肺炎の予防に役立つばかりでなく高齢者医療費削減にも貢献すると思われる.