【1567】技术弥补

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    IABP的技术原理体现在这里,利用的是纯物理作用,让球囊输入氦气在患者心脏舒张期时扩张,堵塞动脉管腔的百分之九十到九十五,这样可以把血压在主动脉根部,提高舒张压和冠脉灌注流量,增加心肌供血增加利于心脏活动。心脏收缩前,气囊排气,主动脉压力下降,心脏的后负荷随之下降,心脏射血的阻力减少,心肌耗氧量跟着下降。
    以上如此多可以一并起到的功效,让IABP技术比起其它治疗方式具有不可比拟的独特优势。
    药物治疗的话需要几种药物联合使用,副作用多多,而且效果不一定好。外科的左室辅佐装置对患者的抗凝要求比IABP更严格,风险更高。IABP的种种优势,注定IABP技术问世之后,临床医生现在对于可以IABP适应症内的患者均是首选IABP方案。
    各种新技术好归好,但是任何医学操作都有它的技术难点,IABP不例外。基于上述IABP的作用原理,球囊要在人体血管内起到最好的物理功效,和球囊止血一样,需要球囊扩张后的体积能达到医生给患者设定的目标,否则效果会大打折扣。
    选择合适患者动脉血管大小的球囊导管型号变得至关重要。大人有大人专用的,小孩子有小孩子专用的。女性和男性在血管直径数值上有略微偏差,患者的身材胖瘦血脂高低等因素同样会呈现出血管直径大小不一。
    说归这样说,大人用的医疗器械型号分不了太细微的粗细差距的。何况,IABP导管常规四个型号粗细差异小反而是长度差异大,表现出让医生要根据患者的身高来选择型号的一面。这是由于除了球囊导管粗细以外,球囊导管放到人体血管内顶端左锁骨下动脉开口附近,尾端是要去到膈肌下的肾动脉。要如此之大体积的球囊方能影响到人体大动脉的血流运作。
    只能说,很多细微差距影响治疗效果时,只能靠医生的经验和操作进行技术弥补了。
    机器连接上后手术医生现场观察患者的血压心率等上机后的情况。根据这些数值,陈医生进行微调。几经调试过后,总觉得哪儿不太满意。
    时间一分一秒过去,夜幕早黑到伸手不见五指。
    夜十点钟了。
    一天工作之后,领导和底下人没区别,疲倦上脸。
    坐在院长办公室的沙发椅上,张华耀打了个大大的呵欠。在他面前的茶几上,院长的小秘书给他端了杯咖啡上来解困。
    “不喝了。”张华耀道,今晚的晚餐被梁院长喂吃太多,喝咖啡有点过饱。
    听他这样说,小秘书去给他换了杯龙井茶端上来。
    没时间喝茶,张华耀的手一页翻过一页面前的病历纸。
    被申友焕猜中了,他这是被梁院长抓过来帮忙给自己的同胞做越洋会诊,研究病人病历。
    什么人的病历?能让院长亲自请院内专家过来办公室看病历,定是大富大贵人的病历。
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