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Re:【medical-news】机械去除血管内血凝块可以改善脑梗死病人的预后

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Mechanical clot removal can often improve stroke outcomes
机械去除血管内血凝块可改善脑卒中预后除血管内血凝块可以改善脑梗死病人的预后
2/13/2007
By: Reuters Health
2007,2,13(路透健康)
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SAN FRANCISCO (Reuters Health), Feb 13 - Results of a second Mechanical Embolus Removal in Cerebral Ischemia (MERCI) trial, in which a newer device was used to remove occluding clots in selected stroke patients, were announced here Friday at the American Stroke Association's International Stroke Conference 2007.
旧金山(路透健康)2月13 日电:在2007年国际脑卒中会议上美国脑卒中协会宣布了在脑缺血试验又一个机械血栓清除的结果,在这个试验中,选择脑卒中病人应用一种新装置移除阻塞血凝块。
Principal investigator Dr. Wade S. Smith of the University of California, San Francisco, said that marked improvement is apparent within 24 hours of treatment. "You don't see this very often in stroke treatment," he told meeting attendees.
旧金山,佳加尼福利亚大学调查负责人韦德斯.史密斯说在治疗的24小时内有显著的改善。他告诉与会者:“这在脑卒中以往治疗是不常见的。”
Dr. Smith told Reuters Health that the catheter they used is similar to a thrombectomy catheter, but that the clot is not excised as with thrombectomy. "There is a balloon guide, then the catheter engages the clot and it is 'yanked' out through the groin," he explained.
史密斯告诉路透社健康频道记者他们使用的导管与血栓切除术导管相似,但并不是切除血栓。他解释说:“使用一个球囊引导,然后导管定位血凝块,通过其头端拉掉血凝块。
Between January 2004 and July 2006, 164 patients were enrolled in the so-called Multi MERCI trial within eight hours of onset of stroke symptoms. Patients all had stenoses of the large intracerebral vessels, including the vertebral, basilar, and intracranial carotids with M1 and M2 occlusions.
在2004年1月和2006年7月之间,在所谓的脑缺血试验中,在脑卒中症状开始八个小164名患者入选。 患者全部有颅内大血管的狭窄, 包括椎动脉, 基底动脉, M1和M2段闭塞的颅内颈动脉。
Patients were either not candidates for intravenous thrombolysis or had failed a course of tPA before undergoing clot removal. Intra-arterial thrombolysis was given after embolus extraction if indicated.
在血凝块移除前,行tPA失败或已静脉内血栓溶解的病人不能入选。如果需要,在栓子抽除以后可以动脉内血栓溶解。
The final recanalization rate, with embolus removal followed by intra-arterial thrombolysis, was 68.3%. At 90 days, 34.9% of patients had a modified Rankin score of 2 or less, while mortality was 34.6%.
当栓子撤除紧接动脉内血栓溶解,最后的再通率是68.3%。 在90天, 34.9%患者改良Rankin比分小于等于2, 而死亡率是34.6%。
The symptomatic intracranial hemorrhage rate was 9.8% (2.4% after correction) and the asymptomatic intracranial hemorrhage rate was 30.5%, which Dr. Smith believes is artifactually high due to the criteria used to define bleeding on CT scan. "There were no safety issues with thrombolytic therapy before sending the patient to the cath lab," he said.
有症状的颅内的出血率是9.8% (更正以后2.4%),无症状颅内的出血率是30.5%,史密斯博士认为:由于习惯通过CT扫描确定出血的标准导致出血率人为的增高。 “在送患者到导管室之前用溶栓治疗没有安全问题 ”他说。
Dr. Smith noted that the lumen after clot removal is relatively undamaged, with only five cases of complications after clot removal. "Of course, we would like to have this number be zero," he added.
史密斯博士指出,在血凝块移除后管腔相对完好,仅有5例并发症。“当然我们希望这个数字是零,”他补充说。
By Martha Kerr
马莎,克尔报道

编译(共589字)
机械去除血管内血凝块可改善脑卒中预后除
2007,2,13(路透社健康频道)
旧金山(路透健康)2月13 日电:在2007年国际脑卒中会议上美国脑卒中协会宣布了在脑缺血试验又一个机械血栓清除的结果,在这个试验中,选择的脑卒中病人应用了一种新装置移除阻塞血凝块。
旧金山,佳加尼福利亚大学调查负责人韦德斯.史密斯说:病人在治疗的24小时内有显著的改善。他告诉与会者:“这在脑卒中以往治疗是不常见的。”
史密斯告诉路透社健康频道记者,他们使用的导管与血栓切除术导管相似,但并不是切除血栓。他解释说:“使用一个球囊引导,然后导管定位血凝块,通过其头端拉除血凝块。
2004.1~2006.7月,在所谓的脑缺血试验中,在脑卒中症状开始八个小时内的164名患者入选。 患者全部有颅内大血管狭窄, 包括椎动脉, 基底动脉, M1和M2段闭塞的颅内颈动脉。
在血凝块移除前,行tPA失败或已静脉内血栓溶解的病人不能入选。如果需要,在栓子抽除以后可以进行动脉内血栓溶解。
当栓子撤除后紧接进行动脉内血栓溶解,最后的血管再通率是68.3%。 在90天的时候, 34.9%患者改良Rankin比分小于等于2, 而死亡率是34.6%。
有症状的颅内的出血率是9.8% (更正以后2.4%),无症状颅内的出血率是30.5%,史密斯博士认为:由于习惯通过CT扫描确定出血的标准导致出血率人为的增高。他说: “在送患者到导管室之前行溶栓治疗没有安全问题 。”
史密斯博士指出,在血凝块移除后管腔相对完好,仅5例有并发症。“当然我们希望这个数字是零,”他补充说。
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