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来自“膈神经冷冻用于肺切除:组织学观察和临床研究验证”一文的更多信息

 发布者:yanghnrr  发布时间:2010年5月25日 
 
来源:《中国神经再生研究(英文版)》杂志

文题:膈神经冷冻用于肺切除:组织学观察和临床研究验证
发表:《中国神经再生研究(英文版)》杂志2010年第10期第769-773页
作者:马永富1,刘阳1,杨学亮2
第一作者:马永富,硕士,医师,主要从事胸部肿瘤的诊断和治疗方面的研究;E-mail:yongfuabc@sina.com.
通讯作者:刘阳,博士,主任医师,副教授; E-mail: sunny301x@sina.com
单位:1 解放军总医院胸外科,北京,100853;2 山西省肿瘤医院胸外科,太原,山西,030013

摘要 
背景
:肺部切除术后残腔已成为影响手术预后,延长患者住院时间的一个因素。神经冷冻可减少患者术后的一些并发症并且不影响神经再生。那么神经冷冻是否也可以减少肺叶切除术后残腔的发生呢?
目的:观察-50℃条件下,膈神经在不同冷冻时间下的病理变化。基于动物实验结果,探讨膈神经冷冻用于肺部手术后残腔处理的可行性和有效性。
设计、时间和地点:对比观察动物实验于2008-01/06在解放军总医院动物实验中心完成;以动物实验结果为基础,临床随机对照实验于2008-07/2009-07在解放军总医院胸外科完成。
对象:纳入2008-07/2009-07在解放军总医院胸外科进行肺叶切除术的患者160例。
方法:①动物实验:将27只成年山羊随机分为3组(每组9只),于-50℃条件下,分别冷冻膈神经30,60,90s。②临床实验:将160例患者随机分为对照组和冷冻组,每组80例。冷冻组患者在肺叶切除术后关闭胸腔前进行膈神经冷冻术:-50℃,冷冻60s。对照组常规关胸。
主要观察指标:①在膈神经冷冻后第1,30,60天,HE染色观察山羊膈神经的病理学改变。②临床实验中,记录统计患者术后残腔发生率,利用便携式肺功能仪定期肺功能检查包括用力肺活量和1秒率,观察并记录术后感染发生率、胸腔闭式引流管平均留置时间和平均住院时间。
结果:①动物实验:在-50℃条件下,随着冷冻时间的延长,膈神经的病理损害逐渐加重,损伤的恢复时间也逐渐延长。在冷冻后30d时,冷冻30,60s的膈神经已经完全恢复正常;在冷冻后60d时,全部膈神经完全恢复正常。②临床试验:术后1,5,10,30d,冷冻组的残腔率明显低于对照组(P<0.05);同时,膈神经冷冻可降低肺叶切除患者的残腔率,缩短患者的胸腔闭式引流管留置时间和住院时间(P<0.05),但对患者的用力肺活量、1s率及术后感染发生率无影响(P>0.05)。
结论:在-50℃条件下,山羊膈神经冷冻后60d,膈神经可完全恢复正常。临床上,膈神经冷冻可减少肺部切除患者的残腔率,而不影响患者的肺功能,并且能够缩短患者的住院时间,是一种安全有效的方法。
关键词:肺叶切除术;胸膜残腔;冷冻治疗;膈神经;术后并发症;神经再生

本实验先进性及创新点
本文创新点:将冷冻技术应用于膈神经,首先动物实验证明在-50℃条件下,冷冻山羊膈神经60S,30天后能够完全恢复。在此实验基础上,把冷冻技术应用于临床,将膈神经冷冻技术应用于肺叶切除术后残腔的预防,进行临床对比实验,结果证明:在-50℃条件下,冷冻膈神经60S,能够有效减少残腔率及并发症发生率,并且能有效减少胸腔闭式引流管平均留置日期和平均住院日期,是应对肺部手术后残腔安全有效的方法。
国内外此类研究现状:对于胸外科肺部手术后,尤其是肺叶切除术后残腔较高的问题,目前临床上还没有行之有效的方法。目前应用的主要方法有:气腹法、胸膜覆盖法、瞬间胸膜麻痹法、肌肉覆盖法、膈神经压榨法。气腹法、胸膜覆盖法、瞬间胸膜麻痹法、肌肉覆盖法用于术后残腔的处理,需要再次手术;膈神经压榨法在术中应用,但是压榨力度与损伤的关系目前尚无实验证明,个人操作力度不同,可能会引起永久性膈神经损伤。而本研究在动物实验基础上,把冷冻技术应用于临床,将膈神经冷冻技术应用于肺叶切除术后残腔的预防,进行临床对比实验,结果表明在-50℃条件下,冷冻膈神经60S,是应对肺部手术后残腔安全有效的方法。
先进性评价:
(1)提供证据:检索哪个数据库,检索时间和检索关键词设定为什么,结果有多少相关文献,分别是什么,由最终检索认定本文(实验)具先进性。
①关键词:cryotherapy;phrenic nerve;lung surgery;
数据库:Pubmed
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②关键词:residual spaces;lung surgery;
  数据库:Pubmed
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(2)对于肺叶切除术后残腔的处理,目前还没有相关金标准。

国内外该范围领域同类研究水平介绍
对于胸外科肺部手术后,尤其是肺叶切除术后残腔较高的问题,目前临床上还没有行之有效的方法。目前应对开胸术后残腔的方法有:气腹法、胸膜覆盖法、瞬间胸膜麻痹法、肌肉覆盖法、膈神经压榨法。气腹法、胸膜覆盖法、瞬间胸膜麻痹法、肌肉覆盖法用于术后残腔的处理,需要再次手术;膈神经压榨法在术中应用,但是压榨力度与损伤的关系目前无实验证明,个人操作力度不同,可能会引起永久性膈神经损伤。
本研究中,首先行动物实验,证实在-50℃条件下,冷冻膈神经60S,30天后能够完全恢复;在此基础之上,把冷冻技术应用于临床,将膈神经冷冻技术应用于肺叶切除术后残腔的预防,进行临床对比实验,结果证明:在-50℃条件下,冷冻膈神经60S,能够有效减少残腔率及并发症发生率,并且能减少胸腔闭式引流管平均留置日期和平均住院日期,是应对肺部手术后残腔安全有效的方法。
目前国内外尚未见将膈神经冷冻术应用于肺部手术后残腔研究的相关报道。

 

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