心源性哮喘:是什么原因导致的?

    什么是心源性哮喘?

    心源性哮喘并非真正的哮喘,而是伴随左心衰竭发生的咳嗽或哮鸣。视乎症状的严重程度,这种哮鸣有可能需要紧急就医。

    心力衰竭可引发肺部积液,也就是被称为肺水肿的医疗状况。心力衰竭还可能引发气道内和气道周围积液。这种积液可能导致气短、咳嗽和哮鸣。因这些症状与哮喘相似,故称为心源性哮喘。

    真性哮喘是由气道炎症引起的慢性疾病。炎症令气道变窄,导致呼吸困难。真性哮喘并非由肺部积液或心脏病引起。但越来越多的研究表明,哮喘与心脏病风险升高之间存在关联。

    区分哮喘与心力衰竭至关重要。这是因为,每种疾病的治疗方法有所不同。心力衰竭的治疗方法有助于缓解心力衰竭和心源性哮喘的症状。若过度使用急救吸入器等真性哮喘治疗方法,其实有害无益,且可能恶化心脏问题。

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