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find Author "赖应龙" 11 results
  • 同种瓣的生物活性与耐久性

    液氮保存的同种瓣具有生物活性,在临床应用中显示了良好的近中期效果,但长期耐久性还有待提高.研究表明,同种瓣的供者来源、热缺血时间、灭菌时间和温度、灭菌液的配方、保存方法均能影响瓣膜的生物活性.有活性的同种瓣临床应用效果和使用寿命明显优于无活性的同种瓣,在移植后能诱发机体产生供体特异性的体液免疫和细胞免疫反应.瓣膜中存活的成纤维细胞和移植免疫反应与同种瓣耐久性的关系目前意见尚未统一.同种瓣植入的手术方式、供者瓣膜尺寸、宿主因素(年龄、体重、健康状态)等均能影响同种瓣的耐久性.

    Release date:2016-08-30 06:32 Export PDF Favorites Scan
  • Research Progress of Correlation between Adipocytokines and Myocardial Remodeling

    Myocardial remodeling is a common pathological physiology change for a variety of heart diseases under stimulation such as stress or ischemia. The engine body will release a lot of cytokines to promote the change of myocardial structure and ultimately lead to heart failure. Myocardial remodeling includes myocardial cells remodeling and the extracellular matrix remodeling. In recent years, we find that the function of adipose tissue is not only about energy storage, buffering to protect, supporting and filling, but also has a powerful function of secretion. Adipose tissue can secrete various adipocytokines, such as leptin, adiponectin, visfatin, omentin, angiotensin Ⅱ, and so on. Current studies have shown that adipocytokines and myocardial remodeling are intimated. And this article will summarize the function of adipocytokines on myocardial remodeling.

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  • Research Progress of Serological Indexes of Congestive Pulmonary Arterial Hypertension

    Congestive pulmonary arterial hypertension (PAH) is one of the most common complications of left to right shunt congenital heart disease. With the pulmonary artery pressure increasing, the shunt direction will reverse, eventually develop into Eisenmenger syndrome, and affect the patients' life. Studies in recent years have found that angiotensin -(1-7) and brain natriuretic peptide can adversely affect renin-angiotensin aldosterone system (RAAS), stromal cell derived factor can delay the pulmonary vascular remodeling, von Willebrand factor marks the pulmonary vascular endothelial function impaired, microRNA causes damage and homocysteine play a protective role in pulmonary vascular endothelial function. The RAAS activation, pulmonary vascular remodeling and endothelial dysfunction are related to the formation and development of PAH. We produced a comprehensive literature review about serological indexes in congestive PAH in this review.

    Release date:2016-10-19 09:15 Export PDF Favorites Scan
  • 女性重症肌无力患者的外科治疗与围术期处理

    摘要: 目的 总结女性重症肌无力(MG)患者的外科治疗及围术期处理经验。 方法 回顾性分析1979年1月至2007年12月收治的186例(包括川北医学院附属医院胸心血管外科41例,南方医科大学附属南方医院胸心血管外科145例)MG女性患者的临床资料,年龄5~64岁,平均年龄43.9岁。按Osserman临床分型,小儿MG45例,成人MG141例,其中眼肌型25例,轻度全身型63例,中度全身型29例,急性暴发型19例,晚期严重型5例。合并胸腺瘤166例,按Masaoka分期 I期40例,Ⅱ期69例,Ⅲ期44例,Ⅳ期13例。152例患者经胸骨正中切口径路手术,行胸腺切除,纵隔淋巴结清扫术;34例胸腺无明显增生经颈部横切口行单纯胸腺切除术。 结果 全组无手术死亡。围术期发生MG危象22例,经相应的处理治愈。术后随访12个月以上165例,失访21例。痊愈30例(18.18%)、基本痊愈28例(16.97%)、显效60例(36.36%)、好转25例(15.15%)、无效22例(13.33%)。Ⅰ型、Ⅱa 型、Ⅱb 型、Ⅲ型和Ⅳ型有效率分别为100.00%、93.10%、90.00%、77.27%和53.85%。 结论 女性MG患者经胸腺切除术治疗效果良好;加强围术期处理,合理使用抗胆碱酯酶药物和激素,可减少各种MG危象的发生。

    Release date:2016-08-30 06:03 Export PDF Favorites Scan
  • 经冠状静脉窦持续低流量逆行灌注在双瓣膜置换术中的应用

    目的 总结冷晶体氧合血心脏停搏液经冠状静脉窦持续低流量逆行灌注在二尖瓣和主动脉瓣双瓣膜置换术中的应用经验。方法 将64例患者常规插管建立体外循环,降温至32 ℃时阻断升主动脉,先经主动脉根部或冠状动脉开口顺行灌注4 ℃冷晶体心脏停搏液(15~20 ml/kg),心脏停搏后经冠状静脉窦持续低流量(70~150 ml/min)逆行灌注1∶4冷晶体氧合血心脏停搏液,于心内直视下行双瓣膜置换术。 结果 开放主动脉后,53例(828%)患者心脏自动复跳,11例(17.2%)电击复跳,均顺利停机拔管。术后发生低心排血量综合征3例,严重室性心律失常3例,死亡2例,其余患者9~13 d出院,无并发症发生。随访56例(87.5%),随访时间5个月~2.5年,患者临床症状消失,活动能力明显改善,无晚期死亡;复查超声心动图提示人工机械瓣活动良好,无瓣周漏。 结论 冷晶体氧合血心脏停搏液经冠状静脉窦持续低流量逆行灌注具有良好的心肌保护效果。

    Release date:2016-08-30 06:05 Export PDF Favorites Scan
  • 主动脉窦瘤破裂继发感染性心内膜炎合并肺动脉瓣损毁一例

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
  • 双氧水冲洗胸腔致脑气栓两例

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
  • 原发性心脏滑膜肉瘤二例

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  • 右心房粘液瘤累及三尖瓣一例

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  • Effect of Ozone for Chest Infection Patients after Thoracotomy

    目的探索食管癌、贲门癌、贲门失弛缓症术后胸腔感染的有效处理方法。 方法选取我院胸外科2012年1月至2014年6月间因食管癌、贲门癌、贲门失弛缓症手术并发食管胸腔瘘的患者42例,分为常规+臭氧治疗组和常规治疗组。常规治疗组28例,男22例、女6例,年龄54~78(63.5±6.8)岁,行胸腔闭式引流、抗感染、营养支持治疗;常规+臭氧治疗组14例,男11例、女3例,年龄39~74(64.7±9.1)岁,行常规治疗+臭氧胸腔保留灌注治疗。 结果两组年龄、性别、体重差异均无统计学意义(P>0.05),常规+臭氧治疗组疗效明显优于常规治疗组:住院时间更短(P=0.017),住院费用更低(P=0.016),死亡率[0.00%(0/14)vs. 10.71%(3/28)]更低。 结论臭氧具有便捷、杀菌、消毒、不良反应以及促进脓腔吸收的作用,可以提高治疗效果,缩短住院时间,减少住院费用,值得临床推广和运用。

    Release date:2016-10-02 04:56 Export PDF Favorites Scan
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