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复习|困难下腔静脉滤器取出(新手快速通关必看手册)

  • 2026-10-07 05:03:31
复习|困难下腔静脉滤器取出(新手快速通关必看手册)
下腔静脉滤器(inferior vena cava filter,IVCF),是为预防深静脉血栓脱落导致致命性肺栓塞(pulmonary embolism,PE)而设计的装置。放置IVCF显著降低了PE的发生率,特别是由于下肢深静脉血栓形成(deep venous thrombosis,DVT)继而导致的PE。体内留置IVCF的时间延长所带来的并发症如滤器贴壁与倾斜、断裂(2%~10%)、移位(0~18%)、静脉管壁穿透(0~50%)、血栓阻塞(2%~30%)、或者伴有PE及DVT的复发(0.5%~6%)等的概率逐年上升。所以对于IVCF应该应取尽取,而应对IVCF的取出除了可以使用常规的标准方法外,在某些情况下,也需要通过改进取出技术的辅助。
导管捕捉器成襻术(LOOP技术)
使用猪尾导管和导丝相互配合,进入血管壁与滤器粘连处的缝隙,调整导丝角度弯折回返与导管形成襻状结构,襻状结构在缝隙之中勾取粘连组织的同时可调整滤器状态继而完成分离。成襻技术应用灵活多变,既有导管捕捉器成襻术,也有导丝成襻技术。完成分离滤器后,用一般手法进行回收。
(以上是两例贴壁滤器取出病例分享,首先都是通过loop技术剥离回收钩与血管壁之间的粘连,然后通过常规方法成功取出滤器。点击图片可链接到视频)
(以上是两例贴壁滤器取出病例分享,都是通过loop技术直接成功取出滤器。
点击图片可链接到视频或图片原图)

球囊辅助移位术

通过导管与导丝相互配合,在IVC管壁与滤器回收钩之间置入导丝,通过壁侧滤器网孔,通过缝隙将球囊导管导入,继而缓慢增加压力扩大球囊,通过扩张的球囊作用于两侧,使得IVC管壁与回收钩逐渐分离。之后可将导管引入以常规方法施行滤器的取出。但需要注意的是不同滤器的粘连情况,若IVC管壁与滤器的粘连程度较低,则可以很适合地运用球囊作用力较强的特点,而如果粘连情况较严重则需要考虑其他处理方法。

双向导丝技术

圈套器可先于股静脉进入滤器之中导进导丝,在实时透视技术辅助之下使用抓捕器将导丝前段套牢,弯取使之成襻状结构套取滤器继而将导丝引出,之后使用另一圈套器沿颈静脉进入以相同方法套取滤器,2名术者配合对向拉取,将滤器完全与下腔静脉分离,之后可沿一般方法沿股静脉开始回收。这种方法可以针对纺锤形IVCF的结构与分离方式。
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(常规无法抓取滤器,用导丝扶正滤器后,用鹅颈套圈抓取滤网)

活检钳抓取回收法

使用鹅颈圈套器的套取回收技术可能会在襻状结构牵拉时,对粘连组织与滤器情况严重者会遇到阻力非常大的状况,甚至在拉取之中由于力度使用方向与大小问题而引起管壁破损穿透、滤器损坏等严重后果。而活检钳则可以将滤器尽量回收至回收鞘中进行下一步工作。但是值得注意的是活检钳对于方向的控制能力并不突出,因此控制时需要格外注意这一点。

这个给大家添加一个实操视频链接(点击一下图片可链接到视频)

(视频来源:1.53 复制打开抖音,看看【HC9999的作品】超期贴壁滤器异物钳取出下腔静脉滤器 # 异物... https://v.douyin.com/_MK_YO4CE8U/ SLJ:/ 04/07 d@n.Dh)

翻转滤器抓取回收法

对于部分时间久远的滤器常规途径无法取出,即使抓捕到了滤器回收钩也无法取出。今年来有人尝试用20F及以上大鞘配合抓捕器将滤器翻转取出,我们中心也做了部分相应的病例也取得了成功。具体方法以下面案例阐述。      
一名 73 岁男性患者,于下腔静脉滤器(Günther Tulip 型,COOK 公司)置入 6 年后,因 “急性双侧下肢肿胀 1 天” 就诊。患者自述晨起时突然出现下肢沉重、乏力感。既往病史显示,患者 6 年前曾确诊 “双侧下肢深静脉血栓(DVT)合并肺栓塞(PE)”,为防止血栓脱落加重肺栓塞症状,接受了下腔静脉滤器置入术及肺动脉溶栓治疗。术后经抗凝治疗后病情好转,但 1 个月随访时发现下肢及肺动脉仍有残余血栓,故滤器取出计划延期。医生建议患者 1-2 个月后返院复查,但其未遵医嘱,转而在当地诊所就诊;因血栓持续存在,当地医生建议其长期服用抗凝药物(利伐沙班,每日 20mg)。入院前 1 个月,患者因需接受泌尿系结石手术,担心围手术期出血风险而自行停用抗凝药物。
图 1 入院时影像学表现,(A)腹部血管超声显示下腔静脉及双侧髂静脉内低回声血栓(红色箭头),多普勒血流信号消失,符合血栓形成表现;(B-E)CTV 显示:患者下腔静脉滤器置入状态,滤器头部及回收钩与血管壁贴合;滤器下方下腔静脉、双侧髂总静脉及髂外静脉内可见广泛低密度影,提示广泛血栓(红色箭头指向血栓,黄色箭头指向滤器及其支柱)。
图 2 导管导向溶栓(CDT)与机械取栓操作步骤,(A)DSA 显示双侧髂静脉及下腔静脉完全充盈缺损,血液通过腰静脉及椎旁广泛侧支循环引流;(B)经 4F 溶栓导管从血栓远端至近端顺行脉冲喷射注入尿激酶 40 万 IU;(C、D)经双侧股静脉入路,使用 10F 血栓抽吸导管进行机械取栓,髂静脉及下腔静脉血栓几乎完全清除;(E)术后 DSA 确认髂静脉及下腔静脉通畅,仅滤器表面残留少量血栓;(F)取出的血栓,含大量新鲜血栓及少量陈旧性血栓。
图 3 圈套器套扎技术取滤器操作步骤(A)在猪尾导管辅助下,将导丝在滤器颈部成襻,通过圈套器将导丝尖端引出体外;(B)成襻导丝分离纤维组织,使回收钩从粘连的血管壁游离;(C)圈套器成功勾住游离的回收钩;(D)尽管回收钩已拉直,但滤器仍被穿透血管壁的支柱固定,无法完全取出。
图 4 滤器取出与下腔静脉球囊扩张术(A-D)经股静脉逆行途径,使用 20F 血管鞘取出下腔静脉滤器;(E)取出的滤器虽有变形,但结构完整;(F)取出滤器后 DSA 确认下腔静脉通畅,无造影剂外溢,滤器置入部位轻度狭窄;(G)下腔静脉狭窄球囊扩张治疗;(H)扩张后 DSA 显示管腔狭窄明显改善。
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(附一个动态图)
总结:会按滤器只是徒弟,会取滤器的才是师傅。
困难下腔静脉滤器取出(新手必看手册)第一版
困难下腔静脉滤器取出(新手快速通关必看手册)第二版更细更全
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  119. /www/wwwroot/www.sjds.net/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 7.01 KB )
  120. /www/wwwroot/www.sjds.net/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 19.37 KB )
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  123. /www/wwwroot/www.sjds.net/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
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  1. CONNECT:[ UseTime:0.000618s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000979s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000409s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000360s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000497s ]
  6. SELECT * FROM `set` [ RunTime:0.000299s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000701s ]
  8. SELECT * FROM `article` WHERE `id` = 520327 LIMIT 1 [ RunTime:0.000510s ]
  9. UPDATE `article` SET `lasttime` = 1791323135 WHERE `id` = 520327 [ RunTime:0.001398s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000321s ]
  11. SELECT * FROM `article` WHERE `id` < 520327 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000429s ]
  12. SELECT * FROM `article` WHERE `id` > 520327 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000399s ]
  13. SELECT * FROM `article` WHERE `id` < 520327 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000587s ]
  14. SELECT * FROM `article` WHERE `id` < 520327 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000749s ]
  15. SELECT * FROM `article` WHERE `id` < 520327 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000867s ]
0.096066s