Ross术后中远期主动脉瓣反流的危险因素分析

Objective To analyze the risk factors of the postoperative mid- and long-term aortic valvular regurgitation after ROSS procedure(pulmanary valve homograft transplantation). Methods Between March 1998 and July 2007,47 patients[25male, 22 female, mean age (13.31±5.79) years, ronge 1-34 years] with aortic valvular disease underwent the Ross procedure at our insti tution. There were 6 patients suffering fron rheumatic heart disease and 41 patients suffering from congenital heart disease. The aver age aortic blood flow velocity was (4.67±3.47) m/s, the average pressure gradient across aortic valve (88.26±58.06)mm Hg, LVEDD (45.53 ±10.78) mm, EF 0.69±0.08. All the patients were followed up in out-patient departement by ultrasonic cardio gram. Multiple logistic regression analysis was performed to find out the risk factors of the postive aortic valvular regurgitation. Results There was no poetoperative death in hospital. The mean follow-up periods was (36.15±22.1) months, rasnge from 12 to 110 months and none long-dated death. Compared with the data recorded in hospital, the diamenters of the aortic sinus and aortic annu lus enlarged significantly, respectively from (26.16±5.10) mm to (32.37±6.84) tam and from (19.41 ～3.98) mm to (23.45± 5.86) mm. The average flow velocity d the homograft (new aortic valve) was(1.39±0.48) m/s, graclient pressure (8.17+6.16) mm Hg. Mild aortic regurgitstion was present in 5 patients (10.6%), moderate aortic tegmgitafion in 2 pmieats (4.3%) and aevere aortic regurgitation in 1 petient (2.1%). The rate of free from regurgitation was 82.9%. Multiple logistic analyses identified the per esence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years as the risk factors for posterative aortic regurg itation. Conclusion The Ross procedure is a safe and effective procedure with good clinical results in mid-and long-term follow-up. However, the presence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years preoperatively were identified as the risk factors for postoperative aortic regurgitation.     

Ross术后中远期主动脉瓣反流的危险因素分析

Objective To analyze the risk factors of the postoperative mid- and long-term aortic valvular regurgitation after ROSS procedure(pulmanary valve homograft transplantation). Methods Between March 1998 and July 2007,47 patients[25male, 22 female, mean age (13.31±5.79) years, ronge 1-34 years] with aortic valvular disease underwent the Ross procedure at our insti tution. There were 6 patients suffering fron rheumatic heart disease and 41 patients suffering from congenital heart disease. The aver age aortic blood flow velocity was (4.67±3.47) m/s, the average pressure gradient across aortic valve (88.26±58.06)mm Hg, LVEDD (45.53 ±10.78) mm, EF 0.69±0.08. All the patients were followed up in out-patient departement by ultrasonic cardio gram. Multiple logistic regression analysis was performed to find out the risk factors of the postive aortic valvular regurgitation. Results There was no poetoperative death in hospital. The mean follow-up periods was (36.15±22.1) months, rasnge from 12 to 110 months and none long-dated death. Compared with the data recorded in hospital, the diamenters of the aortic sinus and aortic annu lus enlarged significantly, respectively from (26.16±5.10) mm to (32.37±6.84) tam and from (19.41 ～3.98) mm to (23.45± 5.86) mm. The average flow velocity d the homograft (new aortic valve) was(1.39±0.48) m/s, graclient pressure (8.17+6.16) mm Hg. Mild aortic regurgitstion was present in 5 patients (10.6%), moderate aortic tegmgitafion in 2 pmieats (4.3%) and aevere aortic regurgitation in 1 petient (2.1%). The rate of free from regurgitation was 82.9%. Multiple logistic analyses identified the per esence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years as the risk factors for posterative aortic regurg itation. Conclusion The Ross procedure is a safe and effective procedure with good clinical results in mid-and long-term follow-up. However, the presence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years preoperatively were identified as the risk factors for postoperative aortic regurgitation.     

参芪扶正注射液对体外循环术后红细胞免疫功能的影响

目的探讨参芪扶正注射液（简称参芪液）对体外循环（CPB）术后患者红细胞免疫功能的影响。方法选取20例体外循环手术患者,分为参芪液组与对照组（每组10例）。参芪液组于术前5天开始及术中体外循环结束时每日静脉滴注参芪液250mL。于麻醉前、术后6h、24h、72h及7d抽取肝素抗凝的外周静脉血,动态检测两组患者红细胞C3b受体花环率（RBC-C3bRR）、红细胞免疫复合物花环率（RBC-ICR）。结果参芪液组患者RBC-C3bRR、RBC-ICR术后6h、24h、72h及7d明显高于对照组,并且于术后7d恢复到正常水平,红细胞免疫功能明显优于对照组患者（P〈0.05）。结论CPB可以导致红细胞免疫功能低下,围术期应用参芪扶正注射液能明显改善CPB患者术后红细胞的免疫功能,促进受损红细胞免疫功能的恢复。     

Ross术后中远期主动脉瓣反流的危险因素分析

Objective To analyze the risk factors of the postoperative mid- and long-term aortic valvular regurgitation after ROSS procedure(pulmanary valve homograft transplantation). Methods Between March 1998 and July 2007,47 patients[25male, 22 female, mean age (13.31±5.79) years, ronge 1-34 years] with aortic valvular disease underwent the Ross procedure at our insti tution. There were 6 patients suffering fron rheumatic heart disease and 41 patients suffering from congenital heart disease. The aver age aortic blood flow velocity was (4.67±3.47) m/s, the average pressure gradient across aortic valve (88.26±58.06)mm Hg, LVEDD (45.53 ±10.78) mm, EF 0.69±0.08. All the patients were followed up in out-patient departement by ultrasonic cardio gram. Multiple logistic regression analysis was performed to find out the risk factors of the postive aortic valvular regurgitation. Results There was no poetoperative death in hospital. The mean follow-up periods was (36.15±22.1) months, rasnge from 12 to 110 months and none long-dated death. Compared with the data recorded in hospital, the diamenters of the aortic sinus and aortic annu lus enlarged significantly, respectively from (26.16±5.10) mm to (32.37±6.84) tam and from (19.41 ～3.98) mm to (23.45± 5.86) mm. The average flow velocity d the homograft (new aortic valve) was(1.39±0.48) m/s, graclient pressure (8.17+6.16) mm Hg. Mild aortic regurgitstion was present in 5 patients (10.6%), moderate aortic tegmgitafion in 2 pmieats (4.3%) and aevere aortic regurgitation in 1 petient (2.1%). The rate of free from regurgitation was 82.9%. Multiple logistic analyses identified the per esence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years as the risk factors for posterative aortic regurg itation. Conclusion The Ross procedure is a safe and effective procedure with good clinical results in mid-and long-term follow-up. However, the presence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years preoperatively were identified as the risk factors for postoperative aortic regurgitation.     

镶嵌治疗成人室间隔缺损合并动脉导管未闭、主动脉缩窄1例

病人男，3-4岁。发现心脏杂音17年，活动后心悸3个月。入院查体：上肢血压160/65mm hg（1 mm Hg=0．133kPa），下肢血压118／45 mm Hg只。胸骨左缘第4肋间可闻及3/Ⅵ级吹风样收缩期杂音，左缘第2肋间可闻及连续性机械样杂音。胸部X线正侧位片示双肺纹理增多，肺动脉段稍突出。心电图示T波改变。超声心动图示室间隔上部回声中断约5mm，左室壁向心性肥厚。     

Ross术后中远期主动脉瓣反流的危险因素分析

Objective To analyze the risk factors of the postoperative mid- and long-term aortic valvular regurgitation after ROSS procedure(pulmanary valve homograft transplantation). Methods Between March 1998 and July 2007,47 patients[25male, 22 female, mean age (13.31±5.79) years, ronge 1-34 years] with aortic valvular disease underwent the Ross procedure at our insti tution. There were 6 patients suffering fron rheumatic heart disease and 41 patients suffering from congenital heart disease. The aver age aortic blood flow velocity was (4.67±3.47) m/s, the average pressure gradient across aortic valve (88.26±58.06)mm Hg, LVEDD (45.53 ±10.78) mm, EF 0.69±0.08. All the patients were followed up in out-patient departement by ultrasonic cardio gram. Multiple logistic regression analysis was performed to find out the risk factors of the postive aortic valvular regurgitation. Results There was no poetoperative death in hospital. The mean follow-up periods was (36.15±22.1) months, rasnge from 12 to 110 months and none long-dated death. Compared with the data recorded in hospital, the diamenters of the aortic sinus and aortic annu lus enlarged significantly, respectively from (26.16±5.10) mm to (32.37±6.84) tam and from (19.41 ～3.98) mm to (23.45± 5.86) mm. The average flow velocity d the homograft (new aortic valve) was(1.39±0.48) m/s, graclient pressure (8.17+6.16) mm Hg. Mild aortic regurgitstion was present in 5 patients (10.6%), moderate aortic tegmgitafion in 2 pmieats (4.3%) and aevere aortic regurgitation in 1 petient (2.1%). The rate of free from regurgitation was 82.9%. Multiple logistic analyses identified the per esence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years as the risk factors for posterative aortic regurg itation. Conclusion The Ross procedure is a safe and effective procedure with good clinical results in mid-and long-term follow-up. However, the presence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years preoperatively were identified as the risk factors for postoperative aortic regurgitation.     

Ross术后中远期主动脉瓣反流的危险因素分析

Objective To analyze the risk factors of the postoperative mid- and long-term aortic valvular regurgitation after ROSS procedure(pulmanary valve homograft transplantation). Methods Between March 1998 and July 2007,47 patients[25male, 22 female, mean age (13.31±5.79) years, ronge 1-34 years] with aortic valvular disease underwent the Ross procedure at our insti tution. There were 6 patients suffering fron rheumatic heart disease and 41 patients suffering from congenital heart disease. The aver age aortic blood flow velocity was (4.67±3.47) m/s, the average pressure gradient across aortic valve (88.26±58.06)mm Hg, LVEDD (45.53 ±10.78) mm, EF 0.69±0.08. All the patients were followed up in out-patient departement by ultrasonic cardio gram. Multiple logistic regression analysis was performed to find out the risk factors of the postive aortic valvular regurgitation. Results There was no poetoperative death in hospital. The mean follow-up periods was (36.15±22.1) months, rasnge from 12 to 110 months and none long-dated death. Compared with the data recorded in hospital, the diamenters of the aortic sinus and aortic annu lus enlarged significantly, respectively from (26.16±5.10) mm to (32.37±6.84) tam and from (19.41 ～3.98) mm to (23.45± 5.86) mm. The average flow velocity d the homograft (new aortic valve) was(1.39±0.48) m/s, graclient pressure (8.17+6.16) mm Hg. Mild aortic regurgitstion was present in 5 patients (10.6%), moderate aortic tegmgitafion in 2 pmieats (4.3%) and aevere aortic regurgitation in 1 petient (2.1%). The rate of free from regurgitation was 82.9%. Multiple logistic analyses identified the per esence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years as the risk factors for posterative aortic regurg itation. Conclusion The Ross procedure is a safe and effective procedure with good clinical results in mid-and long-term follow-up. However, the presence of bicuspid aortic valve, enlargement of aortic annulus and age above 14 years preoperatively were identified as the risk factors for postoperative aortic regurgitation.     

肺动脉灌注参芪扶正注射液对体外循环肺损伤影响作用的观察

目的探讨体外循环心脏直视手术中肺动脉灌注参芪扶正注射液（简称参芪液）对肺损伤的影响。方法选择心脏瓣膜病变伴肺动脉高压的患者22例,分为参芪液组和对照组,每组11例。两组均在升主动脉阻断心脏静止后,经主肺动脉灌注肺保护液。对照组灌注纯氧合血肺保护液,参芪液组灌注由参芪液与氧合血组成的肺保护液;分别于转流前、转流结束时、转流结束后6h、24h测定并记录两组肺循环血浆丙二醛（MDA）含量、肺血管阻力（PVR）、静脉血与动脉血白细胞比值及呼吸机辅助通气时间。结果两组MDA和PVR较转流前均升高（P〈0．05）,但参芪液组升高程度明显低于对照组（P〈0．05）,并且在术后24h基本恢复至术前水平;两组静脉血白细胞／动脉血白细胞比值在转流结束时及转流结束后6h均高于转流前,但参芪液组明显低于对照组（P〈0．05）;参芪液组呼吸机辅助通气时间为（16．1±5．5）h,明显少于对照组的（29．1±6．9）h（P〈0．01）。结论参芪液能减轻体外循环心脏直视手术后的肺损伤。     

合并室间隔缺损的大动脉转位所致肺动脉高压的可逆性程度及其分子机制

目的 探讨合并室间隔缺损(VSD)的完全性大动脉转位(TGA)所致肺动脉高压的可逆性程度及其分子机制.方法 24例平均肺动脉压力大于30 mmHg(4.0 kPa)病儿,其中大动脉转位伴室间隔缺损10例,单纯室间隔缺损14例.在体外循环开始前取其右中叶肺组织,标本经HE及弹力纤维染色,评估肺血管病变程度.ELISA检测标本中eNOS、iNOS、ET-1、ET-AR、ET-BR、MMP-2、MMP-9及TIMP的表达情况.结果 两组病儿年龄、身高、体重、VSD大小、术前肺动脉压力筹异均无统计学意义,而血红蛋白浓度、主动脉及肺动脉内氧饱和度及术后肺动脉压力下降值筹异明显,P<0.05.两组肺标本Heath-Edwards分级0～Ⅱ级,ELISA检测发现TGA组的eNOS及MMP-2表达,分别为(280.13 ±101.92)ng/mg和(31.68±15.36)ng/mg,明显低于单纯VSD组的(488.41±249.6)ng/mg和(69.28±49.12)ng/mg,P<0.05.两组iNOS、ET-1、ET-AR、ET-BR、MMP-9及TIMP表达差异无统计学意义.结论 NOS系统、ET系统及MMP/TIMP系统的失衡参与TGA合并VSD者的肺高压形成过程,相对于单纯VSD者,TGA者肺循环的高氧合状态使MMP-2和eNOS表达下调,在一定程度上影响肺动脉高压的进展及其肺血管病变的可逆性程度.