angioplasty
血管形成術
解説 Definition
狭くなった血管をバルーンなどで広げる医療手術。心臓疾患の治療に用いられる。
Angioplasty is a medical procedure used to open a narrowed or blocked blood vessel, especially an artery near the heart. Doctors usually do it to improve blood flow and reduce problems caused by blocked arteries. It is mainly used in hospital and heart-treatment contexts.
覚え方のコツ Memory Tip
`angio-` は *angiography*（血管造影）などで見かける「血管」系の目印、`-plasty` は *rhinoplasty* などにもある「形を整える手術」の語尾として覚えると整理しやすいです。つまり *angioplasty* は「血管を見る」のではなく「血管の形を直して広げる」側。実際も *balloon angioplasty*、*coronary angioplasty* のように、狭くなった血管を広げる治療場面でよく出ます。`angiography` との取り違えに注意すると定着しやすいです。
Split it into `angio-` and `-plasty`. `Angio-` is the blood-vessel part you also see in words like `angiography`, while `-plasty` means surgical shaping or repair. So this word is about fixing a vessel, not just looking at it. It often appears in chunks like `balloon angioplasty` or `coronary angioplasty`.
例文
The cardiologist recommended angioplasty to open the blocked artery in his heart.
心臓専門医は、彼の心臓の詰まった動脈を開くために血管形成術を勧めた。
Thanks to modern angioplasty techniques, the patient was discharged within two days.
現代の血管形成術の技術のおかげで、患者は2日以内に退院した。
Balloon angioplasty has become a common alternative to open-heart surgery.
バルーン血管形成術は、開心術に代わる一般的な治療法となっている。
angioplasty の類義語・関連語
angioplasty の語源・成り立ち Etymology
angioplasty は angio-「血管」+ -plasty「形成術」から成る医学語です。angio- はギリシャ語 angeion「容器・血管」、-plasty は plassein「形作る」に由来し、文字どおり「血管の形を作り直す」ことです。angiography や plastic も同系で、術名の意味が納得できます。
Angioplasty is a medical word built from angio-, meaning "vessel," and -plasty, meaning surgical shaping or repair. Angio- comes from Greek angeion, "vessel" or "container," and -plasty comes from Greek plassein, "to shape" or "form." So the word originally meant reshaping a blood vessel; angiography and plastic come from the same roots.
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