脑卒中、偏头痛-----找不到原因怎么办？

h2span style="font-size: 16px;"脑卒中、偏头痛-----找不到原因怎么办？/spanbr//h2div/divdivp/psectionsectionsectionsection/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/sectionsectionsectionsectionsectionpspan style="font-size: 16px;"医生，我的偏头痛又发作了，在我家那边的医院检查做了不少，就是没查出原因/span/p/section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/sectionsectionsectionsectionsectionpspan style="font-size: 16px;"你可能需要做一个检查，叫发泡试验/span/p/section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsectionspan style="font-size: 16px;"医生，我为什么这么年轻就中风了，我平时身体都健康的，也没什么不良生活习惯啊？/span/section/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/sectionsectionsectionsectionsectionpspan style="font-size: 16px;"你有可能患上隐匿性卒中。/span/p/section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionbr//section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/sectionsectionsectionsectionsectionpspan style="font-size: 16px;"隐匿性中风？那我如何才能找到原因呢？/span/p/section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/sectionsectionsectionsectionsectionpspan style="font-size: 16px;"隐匿性中风的原因多种，建议做下“发泡试验”来找一找病因/span/p/section/section/section/sectionsectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/section/section/section/section/section/section/sectionsectionsectionsectionsectionsection/section/section/section/section/sectionsectionsectionsection/section/section/section/sectionsectionsectionsectionsectionsectionpspan style="font-size: 16px;"br/Q/spanspan style="font-size: 16px;"什么是发泡试验，它是如何帮助你找到“元凶”/span/p/section/section/section/section/sectionsectionpspan style="font-size: 16px;"TCD发泡试验又称对比增强经颅多普勒超声C-TCD，是在病人平静呼吸时和标准Valsalva动作时使用混血的盐水作为增强剂快速推泡，通过超声可查出心脏右向左的分流。/span/p/sectionsectionsectionsectionsectionsectionpspan style="font-size: 16px;"br/Q/spanspan style="font-size: 16px;"发泡试验可以筛查出哪些疾病？/span/p/section/section/section/section/sectionsectionsectionpspan style="font-size: 16px;"1脑卒中、循环缺血、无症状脑梗死的患者；/spanbr//ppspan style="font-size: 16px;"2偏头痛，特别是有先兆偏头痛的患者；/spanbr//ppspan style="font-size: 16px;"3不明原因的晕厥患者；/spanbr//ppspan style="font-size: 16px;"4减压病患者、潜水员或航天员上岗前检查。/span/p/section/sectionsectionsectionsectionsectionsectionpspan style="font-size: 16px;"br/Q/spanspan style="font-size: 16px;"做发泡试验创伤大吗？/span/p/section/section/section/section/sectionsectionsectionpspan style="font-size: 16px;"TCD发泡试验需要建立肘静脉通路并接上三通开关，使用混血盐水作为增强剂快速推泡，在患者平静呼吸和进行标准Valsava动作时，操作者利用经颅超声多普勒TCD监测大脑中动脉血流。这样的创伤是很小的，患者是能够耐受的。/span/p/section/sectionsectionsection/section/sectionsectionsectionsectionsectionsectionpspan style="font-size: 16px;"br/Q/spanspan style="font-size: 16px;"“发泡试验”的结果怎么看？/span/p/section/section/section/section/sectionsectionsectionpspan style="font-size: 16px;"当患者心脏存在右向左分流时，微泡可以从右心房直接进入到左心房而不经过肺循环滤过。再从左心房到左心室进入主动脉，再从主动脉三个分支进入体循环，TCD装置就可以在脑部探测到微泡信号“凶手留下的”，并可据微泡的数量判断分流程度。试验结果即为阳性。/spanspan style="font-size: 16px;"当患者心脏不存在右向左分流时，微泡将进入右心室，沿肺动脉进入肺循环，而不会进入体循环动脉里，所以TCD显示屏上将不会有频谱的变化，即为阴性。/span/p/section/sectionsectionsectionp/p/section/sectionsectionsectionsectionsectionsectionpspan style="font-size: 16px;"br/Q/spanspan style="font-size: 16px;"“发泡试验”到底有什么意义？/span/p/section/section/section/section/sectionsectionpspan style="font-size: 16px;" “病”在脑，“洞”在心！因隐源性卒中、偏头痛等疾病可能与卵圆孔未闭PFO导致的右向左分流有关，经颅多普勒发泡试验可用于上述疾病的PFO筛查，此项检查总体来说还是比较的，具有非侵入性、价格便宜的特点，患者更为舒适、耐受。此外发泡试验诊断右向左分流的灵敏度高，特异性好，联合经食道超声检查，可以提高病因的诊断率，在预防复发方面也起到了重要的作用。/span/p/section/divpbr//p