A disease in which strong stomach acid enters the esophagus and causes inflammation. Heartburn symptoms often occur when hungry, after meals, or while sleeping. It is common in people over 70 years old, and is said to affect about 10% of people in their 80s. The sphincter at the bottom of the esophagus sends food to the stomach and prevents stomach acid from refluxing into the esophagus. This function weakens or becomes impaired as people age, and does not work properly. Many people experience heartburn while sleeping because they lie on their side, which makes it easier for stomach acid to enter the esophagus and the refluxed stomach acid remains in the esophagus. Even if you are not elderly, people who are obese or pregnant and have a swollen abdomen and high abdominal pressure are more likely to experience reflux. Even healthy people experience reflux four or five times a day, but if the number of times increases or the time that stomach acid remains in the esophagus increases, it becomes more likely to develop. In severe cases, there are cases where heartburn makes it difficult to sleep unless the bed is tilted and the head is elevated. Treatment is mainly medication. H2 blockers and proton pump inhibitors are used to suppress the secretion of stomach acid. If medication does not improve the condition, surgery may be performed to wrap the upper part of the stomach around the back of the esophagus and sew it up. → Excessive stomach acid Source : Heibonsha Encyclopedia About MyPedia Information |
胃の強い酸が食道に入り込み,炎症を起こす病気。空腹時や食後,就寝中に胸焼け症状が起こることが多い。70歳以上の高齢者に多く,80歳代では約1割に見られるという。 食道の下部にある括約(かつやく)部は,食べた物を胃へ送り出すと同時に,胃酸が食道に逆流するのを防ぐ役目を果たしている。高齢のために,この機能が衰えたり,障害を起こしたりして,うまく働かなくなるのがその原因。寝ている間に胸焼け症状が出る人が多いのは,身体を横にするため,胃酸が食道に入りやすく,逆流した胃酸が食道の中にとどまってしまうため。 高齢者でなくても,肥満や妊婦などで腹部がふくらみ,腹圧が高まっている人の場合,逆流を起こしやすい。健康な人でも1日に4,5回は逆流が起きているが,その回数が増加したり,胃酸の食道での滞留時間が長くなったりすると発症しやすくなる。 重症の場合には,ベッドを傾けて頭を高くしないと胸焼けがして眠れないというケースもある。 治療は,薬物が中心。胃酸の分泌を抑えるH2ブロッカーやプロトンポンプ阻害剤を使用する。薬で改善されない場合には,胃の上部を食道の後ろに巻き付けるようにして縫い付ける手術を行うこともある。→胃酸過多
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