CAJ | 학술논문

　　目的：评价保留二尖瓣后瓣下结构的二尖瓣置换术后血浆脑钠素浓度的变化。方法：选择因慢性风湿性心瓣膜病而行二尖瓣置换术（MVR）者62例，其中保留二尖瓣后瓣下结构组（MVRP）33例，不保留二尖瓣后瓣下结构组（MVRNP）29例，分别于术前、术后7天和术后6月随访测定血浆脑钠素浓度的水平。结果：与MVRNP组比较，MVRP组术后脑钠素浓度显著下降（p<0.05）。结论：与不保留瓣下结构的MVR术相比，保留后瓣瓣下结构的MVR术更有利于改善术后左室功能。
　　목적：평개보류이첨판후판하결구적이첨판치환술후혈장뇌납소농도적변화。방법：선택인만성풍습성심판막병이행이첨판치환술（MVR）자62례，기중보류이첨판후판하결구조（MVRP）33례，불보류이첨판후판하결구조（MVRNP）29례，분별우술전、술후7천화술후6월수방측정혈장뇌납소농도적수평。결과：여MVRNP조비교，MVRP조술후뇌납소농도현저하강（p<0.05）。결론：여불보류판하결구적MVR술상비，보류후판판하결구적MVR술경유리우개선술후좌실공능。
Objective:TO mke an evaluation of the effect of MVRs with the subvalvular preservation on the BNP level of blood plasma. Methods:A sum of 62 patients with MVR performed due to chronic rheumatic valvular disease were taken and divided into two groups according to the form of operations: the MVRP group of 33 cases with the subvalvular preservation and the MVRNP group of 29 cases with the subvalvular structures revoved. The BNP level of blood plasma before, 7 days and 6 months after the operation, were measured respectively. Results:Significant shrinkage of BNP was found between MVRP groups and MVRNP groups.Conclusions:Compared with the conventional MVRNP, operations with the posterior mitral preserved are more favourable in improving the configuration and function of left atria.