當血壓長期處於過高狀態的時候，便有機會出現心臟肥大(Cardiac hypertrophy)的情況。469Please respect copyright.ＰＥＮＡＮＡdvisLwyqX2
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(圖2)心臟的肌肉會利用收縮及膨脹的舉動把血液送到全身，如果血壓高企的話，心臟肌肉細胞便會自行膨脹增大，好使心臟有更強力量抵禦血液帶來的壓力，且能繼續維持正常功能把血液送往全身。469Please respect copyright.ＰＥＮＡＮＡ3WXAVtmvvn
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這現象稱之為心臟肥大(Cardiac hypertrophy)。469Please respect copyright.ＰＥＮＡＮＡAAuq89GnEc
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(圖3)當血壓持續高企及攀升到某一個位，心臟的肌肉再也沒法透過膨脹增大來維持運作，這時候心臟便會進入「放棄人生」的狀態，再也不會激烈地膨脹收縮，形成心臟衰竭(Heart failure)局面，血液因而再也沒能輸送到身體各部位。469Please respect copyright.ＰＥＮＡＮＡWUD7dYV0nG
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換句話說，長期因高血壓所造成的心臟肥大(Cardiac hypertrophy)，會是形成心臟衰竭(Heart failure)的其中一道誘因。469Please respect copyright.ＰＥＮＡＮＡYeV35rAdE9
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(圖4)有見及此，有不少科學家會以人工方式在動物模型上製造心臟肥大(Cardiac hypertrophy)的局面，藉此了解箇中對細胞所做成的影響，從而找出防止下一步心臟衰竭(Heart failure)的潛在發生。469Please respect copyright.ＰＥＮＡＮＡHk3oBoJoI1
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其中的一種手段，就是利用縫線的手法局部減低心臟血管血液流動的動向。469Please respect copyright.ＰＥＮＡＮＡVf8nNrgDgp
從圖中可見，縫線後左心房所承受的血壓將會大幅度增強。469Please respect copyright.ＰＥＮＡＮＡvI4sEOdjQT
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(圖5)圖中可以清晰見得到，縫線後左心房的確出現肥大的狀況。469Please respect copyright.ＰＥＮＡＮＡnVWV1ZA6Jg
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而這些動物的付出，確實是為人類的健康作出了非常大的貢獻，下集將會再作進一步的講解。469Please respect copyright.ＰＥＮＡＮＡ7xPE3OuRjB
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。469Please respect copyright.ＰＥＮＡＮＡAmrz5DdJLf
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。469Please respect copyright.ＰＥＮＡＮＡahrOm6Sd1b
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio469Please respect copyright.ＰＥＮＡＮＡ232XNkEPfu
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。469Please respect copyright.ＰＥＮＡＮＡMKfC9rWXAb
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Ref1:https://pubmed.ncbi.nlm.nih.gov/12738623/
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