温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,汇文网负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。
网站客服:3074922707
保留
部分
结构
瓣瓣
置换
二尖瓣关闭不全
患者
中的
应用
广西医科大学学报JOURNAL OF GUANGXI MEDICAL UNIVERSITY2023Jul.40(7)保留部分瓣下结构二尖瓣瓣膜置换在二尖瓣关闭不全患者中的应用*范悦,莫春镕,杨柳山,曹辉庆,蒙裕国,罗磊(广西中医药大学附属瑞康医院胸心血管外科,南宁530011)摘要目的:探究保留部分瓣下结构二尖瓣瓣膜置换在二尖瓣关闭不全患者中的应用效果。方法:选取2018年1月至2022年1月在我院进行二尖瓣瓣膜置换手术的86例二尖瓣关闭不全患者作为研究对象,根据不同的手术方式分为对照组46例和研究组40例,对照组采用术中二尖瓣及瓣下腱索全部切除,研究组采用术中保留部分瓣下结构,比较两组患者的围术期各项指标、炎症指标及术后并发症发生情况,并于术后3个月对两组患者超声心动图各参数进行比较分析。结果:与对照组比较,研究组的主动脉阻断时间、体外循环时间、后并行时间显著增加,ICU 停留时间显著缩短(P0.05)。术后3个月,两组左房舒张期末前后径(LADD)、左室射血分数(LVEF)、左室舒张期末横径(LVTD)、左室短轴缩短率(LVFS)无明显差异(P0.05)。两组患者的Tei指数、舒张晚期局部二尖瓣环运动速度(Ema)、舒张早期局部二尖瓣环运动速度(Eme)、二尖瓣环室间隔侧应变率(SRS)、二尖瓣环左室壁侧应变率(SRW)组内术前与术后比较差异均有统计学意义(P0.05)。术后研究组Tei指数低于对照组(P0.05)。与术前相比,术后患者的血清IL-6、IL-10、TNF-水平均大幅升高(P0.05),但两组术前及术后组间比较差异无统计学意义(P0.05)。对患者进行1年随访,研究组并发症发生率(7.5%)显著低于对照组(28.26%)(P0.05)。结论:保留部分瓣下结构二尖瓣瓣膜置换可以缩短二尖瓣关闭不全患者的ICU 停留时间,维持患者的心功能,显著降低患者的Tei指数,促进患者恢复,并减少术后并发症。关键词保留部分瓣下结构;二尖瓣瓣膜置换;二尖瓣关闭不全;心功能中图分类号:R654.2文献标志码:A文章编号:1005-930X(2023)07-1166-06DOI:10.16190/ki.45-1211/r.2023.07.013Application of partial subvalvular structure preservation in mitral valve replacement in pa-tients with mitral insufficiencyFan Yue,Mo Chunrong,Yang Liushan,Cao Huiqing,Meng Yuguo,Luo Lei.(Department of Chest and Cardiovas-cular Surgery,Ruikang Hospital,Guangxi University of Chinese Medicine,Nanning 530011,China)AbstractObjective:To explore the application effect of partial subvalvular structure preservation in mitralvalve replacement in patients with mitral valve insufficiency.Methods:86 patients with mitral valve insufficien-cy who underwent mitral valve replacement surgery in our hospital from January 2018 to January 2022 were se-lected as the study objects and were divided into control group(46 cases)and study group(40 cases)according todifferent surgical methods.The control group underwent surgical resection of mitral valve and subvalvular tendi-nous cords,while the study group underwent surgical resection of subvalvular structures.Perioperative indicators,inflammatory indicators and postoperative complications of the patients were compared between the two groups,and echocardiographic parameters were compared and analyzed between the two groups three months after sur-gery.Results:Compared with the control group,the time of aorta occlusion,cardiopulmonary bypass and post-concurrent time in the study group significantly increased,and the stay time in ICU was significantly shortened(P0.05).Three months after surgery,there were no significant differences in left atrial diastolic diameter(LADD),left ventricular ejection fraction(LVEF),left ventricular transverse diameter(LVTD)and left ventricu-lar brachy-axis shortening rate(LVFS)between the two groups(P0.05).There were significant differences inTei index,late diastolic regional mitral annular motion velocity(Ema),early diastolic regional mitral annular mo-tion velocity(Eme),strain rate of the interventricu-lar septum at the mitral annulus(SRS)and strainrate of the left ventricular wall at the mitral annulus*基金项目:国家自然科学基金资助项目(No.81860785)通信作者,Tel:15977135779,E-mail:收稿日期:2023-04-18 1166(SRW)between the two groups before and after surgery(P0.05).The Tei index of the study group was lowerthan that of the control group(P0.05).Compared with the preoperative levels,the serum levels of IL-6,IL-10and TNF-of patients significantly increased after surgery(P0.05),but there was no significant difference be-tween the preoperative and postoperative groups(P0.05).After 1-year follow-up,the complication rate of thestudy group(7.5%)was significantly lower than that of the control group(28.26%)(P0.05).Conclusion:Par-tial subvalvular structure preservation in mitral valve replacement can shorten the ICU stay time of the patientswith mitral valve insufficiency,maintain their cardiac function,significantly reduce the Tei index,promote pa-tient recovery,and reduce the postoperative complications.Keywordspartial subvalvular structure preservation;mitral valve replacement;mitral valve insufficiency;cardi-ac function二尖瓣关闭不全是临床发病率较高的瓣膜疾病,会导致患者左心结构改变和左心功能下降,手术治疗可以延缓疾病进展,延长患者生存期1-3。传统的二尖瓣置换术将瓣叶及瓣下结构切除,会破坏左室结构和功能的完整性,并导致瓣环及乳头肌连续性中断4,这些是左心室功能异常、复苏困难、低心排发生的主要原因5-7。有学者指出,在行二尖瓣置换术时保留瓣下结构,有利于维持左室壁与二尖瓣结构的连续性,可对维持左心收缩功能提供支持8。而且保留瓣下结构还能减少手术造成的人工瓣膜功能障碍及导致左室流出道梗阻发生的概率,但关于该术式对围手术期指标及术后心功能影响的研究尚不充分9-10。本研究以二尖瓣关闭不全患者为研究对象,探究保留部分瓣下结构二尖瓣瓣膜置换术对患者围手术期指标、心功能指标及并发症的影响,旨在为临床治疗提供依据。1资料与方法1.1一般资料选取2018年1月至2022年1月在我院行二尖瓣瓣膜置换手术的86例二尖瓣关闭不全患者作为研究对象。病例纳入标准:患者经临床诊断,具有行二尖瓣置换手术的指征;无既往手术史;年龄18岁;无其他疾病导致的心功不全及心功障碍。排除标准:伴有其他严重瓣膜病变;患有其他心脏疾病,或行二尖瓣置换术期间合并其他手术;合并恶性肿瘤患者;处于妊娠期及哺乳期的女性患者;存在精神疾病或认知障碍。根据手术方式的不同将研究对象分为对照组46例和研究组40例,对照组采用术中二尖瓣及瓣下腱索全部切除,研究组采用术中保留部分瓣下结构。两组患者的一般资料比较,差异均无统计学意义(P0.05),见表1。患者及家属对于本研究知情同意,且签署知情同意书。项目年龄/岁,x s性别,n(%)男女体质量指数/(kg/m2),x s阵发性呼吸困难,n(%)咯血史,n(%)胸痛史,n(%)肺淤血,n(%)心胸比,x s高血压,n(%)糖尿病,n(%)NYHA分级,n(%)对照组(n=46)41.2211.2319(41.30)27(58.70)21.322.3311(23.91)2(4.35)1(2.17)29(63.04)0.680.111(2.17)1(2.17)35(76.09)11(23.91)研究组(n=40)39.7411.2615(37.50)25(62.50)21.562.468(20.00)3(7.50)1(2.50)31(77.50)0.710.081(2.50)0(0.00)26(65.00)14(35.00)t/20.6090.130-0.4640.1900.3880.0102.120-1.4270.0100.8801