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PPT分享|血液透析用血管通路选择及利弊

  • 2026-04-08 08:16:51
PPT分享|血液透析用血管通路选择及利弊
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血液透析用血管通路选择及利弊总结

血液透析通路是终末期肾病患者的“生命线”,需满足血流量充足(200-300ml/min)、可反复使用且并发症少的要求。临床根据使用周期分为临时通路长期通路,选择需结合患者病情、血管条件及预期寿命综合判断。


一、临时血管通路


1. 中心静脉透析导管(NCC)

适应症:急性肾衰、药物中毒等紧急透析(≤4周)或内瘘失功过渡期。

置管部位:优先右颈内静脉(感染风险低),股静脉易感染为末选。

优缺点:操作简便、即刻使用,但感染率高(股静脉尤甚)、血栓风险大,颈内静脉留置≤4周。


2. 带隧道带涤纶套导管(TCC)

适应症:内瘘未成熟、血管条件差者。

优缺点:较NCC更持久(数月),但长期留置易致导管感染、中心静脉狭窄,耗竭血管资源。


二、长期血管通路


1. 自体动静脉内瘘(AVF)

地位:国际首选“黄金通路”,通过动脉-静脉吻合(如桡动脉-头静脉)实现静脉动脉化。

适应症:预计生存期≥6个月、血管条件良好的慢性肾衰患者。

优缺点

优势:寿命长(5-10年)、感染率低(0.5-1次/千日)、血流量稳定。

局限:需8-12周成熟期,糖尿病、动脉硬化患者手术成功率低。


2. 人工血管内瘘(AVG)

适应症:自体血管纤细或闭塞者(如上臂、下肢移植)。

优缺点:适用范围广、术后2-4周可用,但费用高、感染率(2-4次/千日)和血栓率高于AVF,易形成假性动脉瘤。


3. 永久性中心静脉导管

地位:最后选择,仅用于无法建立内瘘/人工血管者。

风险:感染率高达3-6次/千日,中心静脉狭窄发生率20%-40%。


三、选择原则与维护


优先顺序:AVF>AVG>TCC>NCC,即“能自体不人工,能内瘘不导管”。


维护要点:AVF/AVG需避免受压、定期自查震颤;导管患者保持敷料清洁,发热红肿立即就医。


四、核心并发症


血栓、感染、狭窄是共性风险:AVF以狭窄为主(年发生率15%-20%),AVG血栓率30%/年,导管感染是住院和死亡主因。


总结

AVF为长期透析“金标准”,需提前3-6个月手术规划;临时导管仅作过渡,长期使用将耗竭血管资源。临床需个体化评估,平衡疗效与风险,延长通路寿命并提升患者生活质量。

来源公众号:学透净化科研

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  1. CONNECT:[ UseTime:0.000449s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000784s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000306s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000306s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000500s ]
  6. SELECT * FROM `set` [ RunTime:0.000229s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000618s ]
  8. SELECT * FROM `article` WHERE `id` = 464038 LIMIT 1 [ RunTime:0.000475s ]
  9. UPDATE `article` SET `lasttime` = 1775714626 WHERE `id` = 464038 [ RunTime:0.023807s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.002674s ]
  11. SELECT * FROM `article` WHERE `id` < 464038 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.006843s ]
  12. SELECT * FROM `article` WHERE `id` > 464038 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000353s ]
  13. SELECT * FROM `article` WHERE `id` < 464038 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.008129s ]
  14. SELECT * FROM `article` WHERE `id` < 464038 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000681s ]
  15. SELECT * FROM `article` WHERE `id` < 464038 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001133s ]
0.122878s