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find Author "郭红" 4 results
  • 心肺转流术中血清对培养大鼠肺泡Ⅱ型上皮细胞SP-A的影响

    目的 研究肺表面活性物质相关蛋白A(SP-A)在心肺转流术(CPB)中的变化及机制,并观察己酮可可碱(PTX)对SP-A的保护作用。方法 改良原代培养大鼠肺泡Ⅱ型上皮细胞(AT-Ⅱ),将AT-Ⅱ与CPB中血清共同孵育,并设置PTX用药组,观察AT-Ⅱ的形态学改变及培养液中丙二醛(MDA)的变化,通过免疫组织化学、原位杂交方法检测SP-A和SP-A信使核糖核酸(SP-A mRNA)的表达。结果 损伤实验组AT-Ⅱ形态呈损伤性改变,培养液中丙二醛升高,细胞脱落率上升,成活率下降,SP-A表达在蛋白转录和翻译水平均明显降低,PTX组SP-A水平稍高。结论 CPB术后血清能直接损伤AT-Ⅱ并影响SP-A翻译和转录,这可能是术后肺表面活性物质质和量异常的重要原因,PTX能有效阻止CPB术后血清对SP-A的抑制作用。

    Release date:2016-08-30 06:33 Export PDF Favorites Scan
  • 内镜下治疗大肠腺瘤120例

    【摘要】 目的 探讨内镜下不同方法摘除大肠腺瘤的疗效。方法 2008年4月—2009年10月采用单纯圈套切除术、内镜下黏膜切除术治疗大肠腺瘤120例。结果 120例患者均获成功,其中8例腺瘤在圈套器电切后发现残端有少量渗血,5例给予电凝止血,3例给予局部注射肾上腺素和钛夹止血成功,无大出血及穿孔。结论 经内镜下治疗大肠腺瘤是一种经济、安全、有效的治疗方法。

    Release date:2016-09-08 09:37 Export PDF Favorites Scan
  • Exploration of the methodology of nursing guideline implementation in clinical settings

    As evidence-based practice (EBP) continues to be valued, the guideline implementation has become an important field for research and practice in health care. In order to better guide the guideline implementation in the field of health care, this paper combines the EBP experience gained from several EBP programs carried out in our hospital those years, in aim of exploring and sharing the methodology of guideline implementation in domestic clinical settings.

    Release date:2019-07-18 10:28 Export PDF Favorites Scan
  • Efficacy and safety of transapical transcatheter aortic valve replacement in the treatment of aortic regurgitation in patients with large aortic annulus

    ObjectiveTo investigate the feasibility and safety of transcatheter aortic valve replacement (TAVR) through apical approach for aortic regurgitation of large annulus.MethodsFrom November 2019 to May 2020, 10 male patients aged 64.50±4.20 years with aortic valve insufficiency (AI) underwent TAVR in the Department of Cardiovascular Surgery, Xijing Hospital. The surgical instruments were 29# J-valveTM modified and the patients underwent TAVR under angiography. The preoperative and postoperative cardiac function, valve regurgitation, complications and left ventricular remodeling were summarized by ultrasound and CT before and after TAVR.ResultsA total of 10 valves were implanted in 10 patients. Among them, 1 patient was transferred to the aortic arch during the operation and was transferred to surgical aortic valve replacement; the other 9 patients were successfully implanted with J-valve, with 6 patients of cardiac function (NYHA) class Ⅱ, 4 patients of grade Ⅲ. And there was a significant difference between preoperation and postoperation in left ventricular ejection fraction (44.70%±8.78% vs. 39.80%±8.48%, P<0.05) or aortic regurgitation (1.75±0.72 mL vs. 16.51±8.71 mL, P<0.05). After 3 months, the patients' cardiac function was good.ConclusionTAVR is safe and effective in the treatment of severe valvular disease with AI using J-valve.

    Release date:2021-07-28 10:02 Export PDF Favorites Scan
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