...For this reason, a method was devised in which a tube is inserted into the central vein and the infusion is slowly infused so that the infusion is diluted by the large amount of blood returning to the heart. Since the infusion is higher in calories than the infusion from the peripheral vein, it is also called high-calorie infusion. Recently, it has become possible to provide comprehensive nutrition by adding fat preparations, vitamins, minerals, etc., so it is also called TPN (total parenteral nutrition). Total parenteral nutrition is used when nutrient absorption from the intestine is not possible (when food cannot be taken by mouth due to diseases of the oral cavity, esophagus, stomach, or duodenum, or when food cannot reach the small intestine, or when nutrients cannot be absorbed due to diseases of the intestine itself), or when nutrient absorption from the intestine needs to be stopped (when intestinal movement needs to be restricted as much as possible after gastrointestinal surgery, pancreatitis, or gastrointestinal fistula). ... *Some of the terminology that refers to "total parenteral nutrition" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このため,心臓に戻ってくる大量の血液で注入液が希釈されるよう,中心静脈まで管を挿入してゆっくり点滴注入するこの方法が編み出された。末梢静脈から注入する液よりも高カロリーの液を注入することから,高カロリー輸液とも呼ばれ,また,最近では脂肪製剤,ビタミン類,ミネラルなども加えた総合的な栄養補給が可能となったのでTPN(total parenteral nutrition)ともいわれる。中心静脈栄養は,腸からの栄養吸収が望めない場合(口腔,食道,胃,十二指腸の病気で口から食事がとれなかったり,食物が小腸まで到達できない状態にあるときのほか,腸自体の病気で栄養を吸収できない状態にあるとき)や,腸からの栄養吸収を止めたい場合(消化管の手術後,膵炎,消化管瘻の合併などで腸運動を可及的に制限したいときなど)に用いられる。… ※「total parenteral nutrition」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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