\n\n
肺纤维化的过程包括三方面:一是肺组织的炎性损伤,二是肺组织结构破坏,三是肺间质细胞增生积聚。
\n\n如果损伤微小,只有一点儿条索状变化,修复后可恢复正常结构和功能,对健康没有什么影响。当损伤较大或反复发生时,频繁的“修复”将导致纤维化或疤痕形成。
\n\n一般情况下,由于病毒性肺炎发展成肺纤维化的情况较少见,如果遗留的是陈旧病变索条影,可以没有任何症状。
\n\n肺纤维化具体的症状表现有:呼吸困难、慢性咳嗽、咳痰、喘息、胸闷及其它全身性症状,如体重下降、食欲减退、外周肌肉萎缩和功能障碍、精神抑郁和(或)焦虑等。
\n\n其中呼吸困难是肺纤维化最常见症状,如果是轻度肺纤维化,会有剧烈活动时的呼吸困难。当肺纤维化进展时,在静息时也发生呼吸困难,严重的肺纤维化患者可出现进行性呼吸困难。
\n\n出院后如何进行康复治疗,尽快恢复体力和肺功能,是新冠患者康复后面对的首要问题。尤其对于重症新冠肺炎患者治愈后,若遗留部分肺纤维化,肺功能未完全恢复,即存在呼吸困难、运动耐力减退、活动受限等就是康复治疗的适应症。
\n\n通过康复治疗,以期达到减轻呼吸困难症状、提高运动耐力,使患者恢复体力和参加社会活动的能力,从而改善生活质量的目标。
\n\n患者可从以下几个方面进行康复治疗。
\n\n1.肺功能训练。 新冠肺炎患者主要是肺泡渗出增加,影响肺泡氧合。肺康复的重点是肺功能的锻炼,使气道打开,改善肺通气及肺容量。
\n\n肺功能锻炼的常用方法为缩唇呼吸和腹式呼吸,具体方法如下:
\n\n2.全身运动:主要目的是提高患者全身的耐力,改善心肺功能。建议可以选用慢走、太极拳、健身跑、骑自行车等有氧运动方式。
\n\n3.均衡营养和饮食。多食用富含优质蛋白、维生素、微量元素的食物,适当吃些滋阴润肺的食物,如梨、百合等。
\n\n4.作息规律,改善家居环境,注意空气流通,避免有害气体、烟雾、粉尘的刺激。提倡禁烟,创造无烟环境。患者应注意防寒保暖,预防感冒。
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