【摘要】 本文分析22例老年性主动脉瓣钙化的动脉压力波,其中单纯瓣膜狭窄(AS)9例,为第一组;关闭不全(AI)7例,为第二组:余6例仅为钙化而无AS或AI,为第三组作为对照。记录颈动脉和桡动脉的压力波和脉势图、心音图、心电图,测动脉波的最大上升速率(MRR)、2/3斜率,脉波宽度(W),主峰波高度(h),脉波周期(b-b′),以及回归纠正后的左室射血时间(LVETw)等。所得数据均经统计学处理,分析结果证实老年性钙化性AS动脉压力波升支MRR较快,虽不易从脉诊上显出来AS的一般特征,然而分析颈动脉和桡动脉压力波测得的各项变化,与对照组比较,仍能对诊断AS有所帮助,AI的MRR与2/3斜率则与对照组无显著差异。更多还原

【Abstract】 Carotid and radial artery pressure waves in 22 aged patients with aortic valve calcification diagnosed by ultrasonocardiography (M mode and 2-D) were analysed. Nine cases exhibiting aortic stenosis (AS) with a mean age of 65 years were classified as Group Ⅰ. Group Ⅱ included 7 cases with aortic insufficiency, mean age being 69 years. Group Ⅲ consisted of 6 cases with valvular calcification only, mean age 78 years, served as controls. Carotid and radial artery pressure waves were recorded synchronously with ECG and PCG. Relevant indices included maximum rate of rise (MRR), 2/3 slope, pulse width (W), height (H), cycle length (B-B’) and LVET_W. Although AS in the elderly showed more rapid MRR and 2/3 slope than in the young, the result showed that calcific AS in the old age still manifested decrease in mean MRR and 2/3 slope and was statistically significant as compared with the controls. It is concluded that while palpation of radial pulse in aged patients with calcific AS may be difficult at times, analysis of carotid and radial pulses as regards MRR and 2/3 slope, aside from h, T and LVET_W, is still of diagnostic importance.更多还原