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作 者:谢晓勇[1] 冯振博[1] 郑宝石[1] 何巍[1] 冯旭[1] 雷宾峰[1]
机构地区:[1]广西医科大学第一附属医院心胸外科,南宁530021
出 处:《中华实验外科杂志》2013年第6期1305-1307,共3页Chinese Journal of Experimental Surgery
基 金:广西卫生厅重点课题项目(2012GXNSFAA05309)
摘 要:目的探讨逆行灌注心脏不停跳治疗重度主动脉瓣狭窄(AS)并左室肥厚心肌保护及临床效果。方法重度As并左室肥厚46例,分别采用不停跳和停跳手术,主要检测肌钙蛋白I(TropninI)、肌酸激酶同工酶MB(CK-MB)、乳酸脱氢酶(LDH)浓度及心肌丙二醛(MDA)含量。结果两组比较,TropninI浓度(μg/L)在主动脉开放15min后4个时点,0.56±0.12比0.98±0.25、0.71±0.19比1.23±0.42、0.85±0.21比1.58±0.45、0.65±0.15比1.15±0.41:CK-MB浓度(U/L)在主动脉开放15min、术后2h及术后2d3个时点,12.8±7.5比21.5±9.8、13.9±8.1比23.1±10.2、12.5±8.3比25.7±12.1;LDH浓度(U/L)在主动脉开放15min、术后2h2个时点,301.8±151.6比422.7±163.5、405.4±161.2比615.1±172.3;心肌MDA浓度(mmol/g)在缝闭右房时,2.35±1.12比3.414-2.01,不停跳组明显低于停跳组(P〈0.01,P〈0.05),不停跳组死亡率低于停跳组。结论逆行灌注心脏不停跳治疗重度AS并左室肥厚,具有很好的心肌保护及临床效果。Objective To approach myocardial preservation and clinic effect of aortic valve re- placement (AVR) on severe aortic valve stenosis (AS) with left ventricular hypertrophy with beating-heart under retroperfusion. Methods Forty-six cases of severe AS with left ventricular hypertrophy were random- ly divided into two groups. Twenty-nine patients were subjected to AVR with beating-heart cardiopulmona±y bypass under retroperfusion, and rest 17 received operation on arrested heart cardiopulmonary bypass. Cur- ative effectiveness and prognosis were statistically analyzed. Venous blood was drawn to detect serum levels of Tropnin I and myocardium enzyme. Results At certain time points, serum levels of Tropnin I , CK-MB and lactate dehydrogenase (LDH) in beating-heart group were lower than in arrested heart group. In beating-heart group and arrested heart group, serum levels of Tropnin I (txg/L) were as follows: (0. 56 ± 0.12) vs. (0.98±0.25), (0.71±0.19) vs. (1.23 ±0.42), (0.85 ±0.21) vs. (1.58±0.45), (0.65±0.15) vs. (1.15±0.41); CK-MB (U/L): (12.8±7.5) vs. (21.5±9.8), (13.9±8.1) vs. (23.1±10.2), (12.5±8.3) vs. (25.7±12.1); LDH (U/L): (301.8±151.6) vs. (422.7± 163.5), (405.4 ± 161.2) vs. (615.1 ± 172. 3). Postoperative mortality in beating-heart group was lower than in arrested heart group. Conclusion Beating-heart under retroperfusion could provide good myocardi- al preservation on AS patients with left ventricular hypertrophy, and has better clinic effects.
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