![门静脉系统血栓介入治疗经验与技巧](https://wfqqreader-1252317822.image.myqcloud.com/cover/738/27614738/b_27614738.jpg)
第三节 门静脉系统血栓分型
研究发现,门静脉系统血栓形成相关的危险因素包括肿瘤、肠道炎症、腹部手术史、感染等,其中肝硬化是形成PVT的重要危险因素之一[1]。肝硬化合并PVT的发生率为5%~36%,其中以肝功能较差的肝硬化患者更为显著[2]。门静脉系统血栓形成的患病率在整体人群中仅为1.1%[3],在肝硬化患者中为10%~25%[4],在肝移植手术患者中为2.1%~26%[5]。另外,门静脉系统血栓是脾切除术后严重的并发症之一,尤其是肝硬化门静脉高压症患者。尽管脾切除术后的前期临床表现往往并不严重,并且缺乏特异性,但后期仍可能导致缺血性肠坏死、消化道出血、肝衰竭等严重后果。国内外研究报道称,脾切除术后PVT发生率为0.6%~15.8%[6]。肝硬化PVT患者可反复出现上消化道大出血和顽固性腹水,严重威胁患者生命[7]。
门静脉系统血栓指门静脉主干及其分支的血栓形成,其评估主要包括血栓的程度(包括部分血栓、完全血栓和纤维条索形成)[8]、血栓的分期(包括急性血栓、慢性血栓和门静脉海绵样变性)[9]和血栓的范围(包括门静脉主干、门静脉左右支、脾静脉或肠系膜上静脉)。我们将从以上3个方面结合既往文献报道对门静脉系统血栓分型进行阐述。
Qi等[10]依据腹部增强CT的扫描结果对门脉血栓进行如下分级:部分阻塞是指血栓阻塞血管面积大于1/2;完全血栓是指血栓面积几乎占满血管管腔;门脉闭塞是指门脉完全消失或海绵样变性。Luca等[11]、Bauer等[12]将门静脉系统血栓按血栓阻塞血管的程度分为4个等级:Ⅰ级,阻塞体积占管腔的比例为1%~25%;Ⅱ级,阻塞体积占管腔的比例为26%~50%;Ⅲ级,阻塞体积占管腔的比例为51%~75%;Ⅳ级,阻塞体积占管腔的比例为76%~100%。此种分级方法也是依据影像学,如螺旋CT或磁共振血管造影(MRA),对血栓进行测量的,分级标准更为详细,多位学者应用此标准,更容易达成共识。
对于急性和慢性门脉血栓的定义一直存在争议,一般是根据急性腹痛的起病时间来区分,不同的学者对时间有不同的定义,包括 14[13]、40[14]、60[15-17]、90[18]天,门脉海绵样变性肯定是慢性血栓的标志。Qi等[9]进行了如下的定义,急性门脉血栓是指没有侧支循环形成,且符合以下任意一个标准:①由门脉血栓导致的14天内的急性腹痛或肠缺血或肠坏死,且既往没有慢性血栓病史;②在腹部CT平扫中可见门静脉内高密度影。慢性血栓是具有以下3个特征之一:①在腹部增强CT中可见门静脉内密度减低影;②原门脉主干消失或出现门脉海绵样变性;③门脉海绵样变性。Han等[8]认为慢性血栓不等同于门脉海绵样变性及肝功能失代偿,如要对急慢性门脉血栓的区分达成一致,必须对以下概念达成一致,其中包括急性腹痛的起病时间窗口期、急性血栓与门脉海绵样变性的时间间隔、急慢性血栓的定义、无症状患者的慢性血栓。Senzolo等[19]将发现门脉血栓的时间进行划分:①小于6个月;②6~12个月;③大于12个月。其目的是指导治疗,他认为小于6个月的门脉血栓抗凝治疗效果好。
Luca等[10]对PVT进行了如下分型:按血栓的部位分为门脉主干血栓、肠系膜上静脉血栓、脾静脉血栓、门脉主干+肠系膜上静脉血栓、门脉主干+肠系膜上静脉血栓+脾静脉血栓。肝移植术后极易发生门脉系统血栓,很多学者针对此类情况对PVT进行了不同分型。Jamieson等[20]进行了如下分型:Ⅰ型,血栓局限在门静脉或门静脉与肠系膜上静脉或脾静脉的交汇口,血栓为完全性或部分性;Ⅱ型,血栓由门静脉延伸到肠系膜上静脉近端,但肠系膜上静脉血流通畅;Ⅲ型,血栓局限在门静脉系统,但有大量侧支循环血管形成;Ⅳ型,血栓广泛分布在门静脉系统,仅有少量侧支循环血管形成。Nonami等[21]将PVT分为:Ⅰ型,血栓局限在肝内门静脉;Ⅱ型,血栓在门静脉左支、右支或左右支分叉处;Ⅲ型,部分血栓局限在门静脉主干;Ⅳ型,整个血栓在门静脉主干。Stieber等[22]将PVT进行分型:Ⅰ级,门静脉有部分血栓;Ⅱ级,门静脉完全血栓合并或不合并脾静脉血栓;Ⅲ级,包括肠系膜上静脉在内的广泛血栓;Ⅳ级,血管内广泛血栓,血管不能显示。Yerdel等[23]对门静脉血栓进行如下4个分级:Ⅰ级,小于门静脉管腔50%,局限,未向肠系膜上静脉延伸;Ⅱ级,门静脉阻塞程度在50%~100%,有或没有向肠系膜上静脉延伸;Ⅲ级,门静脉及近端肠系膜上静脉完全阻塞,而远端肠系膜上静脉尚通畅;Ⅳ级,门静脉、近端及远端肠系膜上静脉完全阻塞。赵洪伟等[24]对门静脉血栓进行如下4个分型:Ⅰ型,单纯门静脉主干血栓形成;Ⅱ型,门静脉主干合并所属分支血栓形成,Ⅱa型门静脉主干合并肝内分支血栓形成,Ⅱb型门静脉主干合并脾静脉血栓形成,Ⅱc型门静脉主干合并肠系膜上静脉血栓形成;Ⅲ型,单纯门静脉所属分支血栓形成,Ⅲa型单纯门静脉肝内分支血栓形成,Ⅲb型单纯脾静脉血栓形成,Ⅲc型单纯肠系膜上静脉血栓形成;Ⅳ型,混合血栓形成(包括门静脉海绵样变性,但肝内分支正常;门静脉系统完全海绵样变性除外)。
首都医科大学附属北京世纪坛医院、中国人民解放军第三〇二医院等医院的编委们对3052例(其中1104例进行了介入治疗)门静脉系统血栓患者的解剖发生部位进行了总结,并进行了解剖分型,结果如下:Ⅰ型,门静脉主干血栓813例,占26.6%(图1-3-1~图1-3-3);Ⅱ型,门静脉分支血栓319例,占10.5%(图1-3-4~图1-3-6);Ⅲ型,门静脉属支血栓231例,占 7.6%(图1-3-7~图1-3-12);Ⅳ型,联合血栓 1464例,占 48.0%(图1-3-13~图1-3-42);Ⅴ型,海绵样变性145例,占4.8%(图1-3-43~图1-3-45);Ⅵ型,肝移植后门静脉血栓13例,占0.4%(图1-3-46和图1-3-47);Ⅶ型,TIPS后门静脉血栓 56例,占 1.8%(图1-3-48~图1-3-50)。每一种类型分为两个亚型:a表示原血管血流通畅,b表示原血管血流不通。
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-1_545.jpg?sign=1738987003-DkHDLn4pFKGIK2Xd1WWxYt7lEflvSvud-0-8b2adbf630f87d38007ae0946375b440)
图1-3-1 门静脉主干血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-2_546.jpg?sign=1738987003-qGpLtIuD45oVipdEZa0g7OsGKWmQA8aj-0-feedc48520c15cbcc0d9999f010ce7ab)
图1-3-2 门静脉主干血栓实例Ⅰa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-3_547.jpg?sign=1738987003-ku5GlX6G1Io0vkaAnN2lSWFnYEVWmYwU-0-f3a1f9a96d5c294166ce3d619b012f2e)
图1-3-3 门静脉主干血栓实例Ⅰb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-4_553.jpg?sign=1738987003-hsbU9DLDwE32I4tBJoHd8Wzj95imWu46-0-40882ee16d97645deb95e0081fae4c54)
图1-3-4 门静脉分支血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-5_548.jpg?sign=1738987003-yDbrOeTFWAYiBLykKdSBB0WxQBSwbyCO-0-b8e67be6668b0170c3ec2763fcd9e397)
图1-3-5 门静脉分支血栓实例Ⅱa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-6_549.jpg?sign=1738987003-F9rcJvsjyyipqushG93im7yvS88Oby6x-0-3d8e3d8376c908117213f6aa27690c42)
图1-3-6 门静脉分支血栓实例Ⅱb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-7_565.jpg?sign=1738987003-IBOBzjCwtsVrx2Mnc6CPD7uxN9hLFd6l-0-db22300b67c7cda426efcdbca2d8c5e2)
图1-3-7 门静脉属支血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-8_568.jpg?sign=1738987003-2LNnYBVV3Iw8BATNnOPLIeMvkQo7UTfY-0-832ceae1fda5351dfb43c1fef29b7bee)
图1-3-8 门静脉属支血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-9_569.jpg?sign=1738987003-IyM9pgDhzA1Lh7alzqfOPqzHczVto8Yq-0-a8de667614e2f21aa9ad5fa467943b9c)
图1-3-9 门静脉属支血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-10_564.jpg?sign=1738987003-9KO831IUY6ZO2tv7bDVkjWVEVwZeLCTt-0-0f3ab9d5aedbfd49e42852731dd145fb)
图1-3-10 门静脉属支血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-11_566.jpg?sign=1738987003-HCefCA6ckDccNsoBa6V9s8lt9sdD8n1k-0-1f57192792fdfea7912e639e7fde9f1e)
图1-3-11 门静脉属支血栓示意图Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-12_567.jpg?sign=1738987003-yhxJ6w4i2d2ofxS1gPFKPEdH35rQ3Zz7-0-b989399d18ed2fec8b6185a910471671)
图1-3-12 门静脉属支血栓示意图Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-13_584.jpg?sign=1738987003-tvdSPJ3DPCT907SxYVKYH9czLGVGw06d-0-221568bcbe43a32dd67d7e304d7f55ca)
图1-3-13 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-14_586.jpg?sign=1738987003-VvEK7njyG1GIhGJJnJxIm8dwwwZoNDzF-0-e98aedacb8a9ed1d42d6f936029115ec)
图1-3-14 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-15_587.jpg?sign=1738987003-mFTf5jlaFQjwTy85Xi8p3UpQs1eAJCgP-0-6279b845e56cdc8b1b06847cc26f920d)
图1-3-15 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-16_585.jpg?sign=1738987003-BXZuWduUaIGR3cJqMJx9A88i2LvPDniU-0-7b2cc0d89ebeccf0a9231db8d7e83d1b)
图1-3-16 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-17_588.jpg?sign=1738987003-bFKVgJptV3WfwIoi1V4IZ1jMKMuKihLn-0-3a117b3a75624c17c20b3e607932726d)
图1-3-17 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-18_589.jpg?sign=1738987003-pPg9tDBftxoUTcptiAs0Iy4OP0huKsUf-0-2868299089f8ab6c132534c2dc1f483c)
图1-3-18 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-19_601.jpg?sign=1738987003-dClNGXs5apt25W4cqIxOT5MnP3zbF5nj-0-011d5f58f635a38c269cdce6787c66e6)
图1-3-19 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-20_605.jpg?sign=1738987003-9AVdANZTxG6WIarps8LKkNDluqRlamcF-0-39604fbe8cb9b14064877bf72d83444b)
图1-3-20 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-21_602.jpg?sign=1738987003-uxFjGNvMHVUKktEmlq8c0I6i3vdgBBA5-0-49d08e00c09f9c9fd9e169388dad7cb6)
图1-3-21 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-22_604.jpg?sign=1738987003-ii0JEb6bWaXxEbpvpmsYrVAfx5eB3Lzi-0-d19ffe5a8dd5324520bc94e8f215773c)
图1-3-22 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-23_603.jpg?sign=1738987003-Gye1pXxbKrN2Tk6uIBhBfXJNJbWGmrnl-0-c4854aac502972fbb2ee01e4ec900747)
图1-3-23 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-24_606.jpg?sign=1738987003-sxEfmNkN3poMydi35AwKsQjnoplZlO64-0-78dbf2acddc203963b62d694838a9208)
图1-3-24 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-25_616.jpg?sign=1738987003-JPgscYDhIN5oGwXWPbJBlKkuVxZ85vew-0-e05452e431792108cc2504e15b444c19)
图1-3-25 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-26_624.jpg?sign=1738987003-uBXt8N120RgaHWid9u8gLX2qISTV8shy-0-b35c1180ae044dff2b10387e843731c0)
图1-3-26 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-27_617.jpg?sign=1738987003-m3MKx9GyPCMPMXJKFLFA6ZXhDH898W7Q-0-0316b3db17df616c35631727effd20f4)
图1-3-27 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-28_623.jpg?sign=1738987003-TjylNvLu6j6LIbz4EzcZcSfhNyjDheVb-0-fd5e31cb015cbb29a652c88f471f1527)
图1-3-28 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-29_618.jpg?sign=1738987003-6SHcFKMlENf8NOuHHuM69VsHni4dPRN1-0-7d02adc18796ff8909a3286c7b084233)
图1-3-29 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-30_625.jpg?sign=1738987003-ICOFSz4NxWn0A4DRBM4M90kEEZJ3Vgko-0-e50600953b3d4b93970d9e1d399bae4a)
图1-3-30 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-31_640.jpg?sign=1738987003-Fh1DmcZxGqKYoNY0sNC5e4LBWem1QsRr-0-2c908b05f403b21b7927311a964e6f26)
图1-3-31 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-32_636.jpg?sign=1738987003-ELFoaoBZJ6aRpf9whafY6gtwLIWP29XF-0-72abe46699847c7aed2cb188305ef306)
图1-3-32 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-33_637.jpg?sign=1738987003-QsnDVe3ZNWaLqg9Kq5bgS7ZNfal4gIb6-0-aa082f7cd49b1e3fd2e408a19cc082e7)
图1-3-33 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-34_641.jpg?sign=1738987003-hBJVZdVP3Ri0EQrHzGFpeuEe161sDe3t-0-1384d3d3b0e393d2f6fa01cd25493b9a)
图1-3-34 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-35_638.jpg?sign=1738987003-H0HbT5COSV3hxEI6AiRjWZD5WL9d8AGp-0-70534e6794a6d2a6c496f317fe509b39)
图1-3-35 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-36_639.jpg?sign=1738987003-Q72imoW7l5rkjo5GjbRHJnQQQCIYSOU7-0-0ef1a567ce3a43579835035bbcc631d3)
图1-3-36 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-37_650.jpg?sign=1738987003-oucEJCyvzAkHSyFiXt7deIwriEWBcQWo-0-3ee544ed94901cdf204b31a1fae784f4)
图1-3-37 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-38_652.jpg?sign=1738987003-UvClHiCALWhc2P8qvWFNJKULhKaI1Ov0-0-bb1633adfce6442132dcd5d2e1dacc3a)
图1-3-38 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-39_653.jpg?sign=1738987003-oJvs3CxOSJBxTdgrHSyQh0sTIFyWr8zN-0-04ca1b5af342a4034ff9d542b8cc95c5)
图1-3-39 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-40_651.jpg?sign=1738987003-yQ1JsgML9KRdnzpYocdZTVLFrgrTIzdN-0-227d2343e38017dfd93d1d8728d3b88a)
图1-3-40 联合血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-41_654.jpg?sign=1738987003-3B33KBAPOGsXocR2vixptLya0a4wlDc0-0-128d7917b47151d8d6294d33852f3591)
图1-3-41 联合血栓实例Ⅲa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-42_655.jpg?sign=1738987003-40wj9FRcgjpXHFKcBRyQlACTO7tbT9xL-0-dd8a7cf3a7632384c19e3f3a8cafa295)
图1-3-42 联合血栓实例Ⅲb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-43_668.jpg?sign=1738987003-DjbDqlKJ5wS2OyeRBafQgXm1KzDAGhYh-0-743c5f632f6c95f771eda730d7f83a9b)
图1-3-43 海绵样变性示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-44_675.jpg?sign=1738987003-sfk9JQqCr0txnXrFe25wXL1cCBEEkXBr-0-d3d18321cf52e289214f3775c74f5408)
图1-3-44 海绵样变性实例Ⅴa
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-45_669.jpg?sign=1738987003-2IaiTmluRl4WjvE7yxpcZ0bf7wV26xJY-0-e940ba85578c34d939c2b683b48c60b8)
图1-3-45 海绵样变性实例Ⅴb
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-46_676.jpg?sign=1738987003-kzv2X21C0bokfb6TslD80jeU7QhYthHV-0-6129ce9acfe7fe2781098241b8588a47)
图1-3-46 肝移植后门静脉血栓实例
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-47_670.jpg?sign=1738987003-ITCR9ZTMZLcBLCXUuZRtXNw1eopBNVy4-0-6630a933bd4eed46c308165adc2516b1)
图1-3-47 肝移植后门静脉血栓实例
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-48_677.jpg?sign=1738987003-fXt6fJao6pBkLTbmv3Hb6oZoBkZKhvuD-0-427264bef8859a38d8adc40c44d17c74)
图1-3-48 TIPS后门静脉血栓示意图
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-49_690.jpg?sign=1738987003-TzoiTpFlAlcjJEQtKmKBqqcSZFN2hGGp-0-ab8e87fd5058b3a117d6d06ffaeaaaa6)
图1-3-49 TIPS后门静脉血栓实例
![](https://epubservercos.yuewen.com/C3E91B/15859890405118906/epubprivate/OEBPS/Images/P1-3-50_693.jpg?sign=1738987003-YeXvHr2QnnAQApfKUyJ14IE6m5Lwo8ix-0-22b90105f469d06f45e319f04249056c)
图1-3-50 TIPS后门静脉血栓实例
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