Azevedo J E, Fernandez M A, San Roman D, Torrecilla E, Esturau R, Hernandez J, Echeverria T, Burgueno A, Delcan J L
Serviço de Cardiologia, Hospital Egas Moniz, Lisboa.
Rev Port Cardiol. 1992 Jun;11(6):531-7.
Evaluation by transesophageal echocardiography of the effect on the characteristics of physiological regurgitant jets (JF) resulting from prosthetic disfunction due to pathologic regurgitation (JF).
We studied 69 consecutive patients with the diagnosis of prosthesis in mitral position using transesophageal echocardiography and color doppler codification. The patients were divided in two groups (N and D groups) according to the presence of prosthesis disfunction by pathologic regurgitation. In each patient we determined planimetric areas and atrial peak depth of each JF and also the sum of JF planimetric areas of each mitral prosthesis. When pathological regurgitation was present we calculated the highest planimetric area, severity degree and atrial peak depth in each JP.
The planimetric area in each JF of group N was 330 +/- 167 mm2 and in group D 117 +/- 116 mm2 (p less than 0.001). The sum of the areas of JF in group N was 474 +/- 204 mm2 and in group D 254 +/- 176 mm2 (p less than 0.01). The atrial depth of JF in group was 32 +/- 15 mm and in group D 26 +/- 18 mm (p less than 0.01). In group D 29% of the patients had mild pathological regurgitation, 10% moderate and 61% severe. The maximum planimetric area of JP in group D was 1078 +/- 1007 mm2 with atrial depth of 37 +/- 28 mm.
The pathological regurgitation in disfunction prosthesis in mitral position has a significant reduction effect in the dimension of prosthesis physiologic regurgitation jets. This transesophageal echocardiographic observation makes it possible to characterize and clarify more precisely the different types of mitral prosthesis jets.
经食管超声心动图评估病理性反流导致人工瓣膜功能障碍对生理性反流束（JF）特征的影响。
我们使用经食管超声心动图和彩色多普勒编码连续研究了69例诊断为二尖瓣位人工瓣膜的患者。根据病理性反流导致的人工瓣膜功能障碍情况将患者分为两组（N组和D组）。在每位患者中，我们确定了每个JF的平面面积和心房峰值深度，以及每个二尖瓣人工瓣膜的JF平面面积总和。当存在病理性反流时，我们计算了每个JP的最大平面面积、严重程度和心房峰值深度。
N组每个JF的平面面积为330±167平方毫米，D组为117±116平方毫米（p<0.001）。N组JF面积总和为474±204平方毫米，D组为254±176平方毫米（p<0.01）。JF的心房深度在N组为32±15毫米，D组为26±18毫米（p<0.01）。D组中29%的患者有轻度病理性反流，10%为中度，61%为重度。D组JP的最大平面面积为1078±1007平方毫米，心房深度为37±28毫米。
二尖瓣位功能障碍人工瓣膜的病理性反流对人工瓣膜生理性反流束的大小有显著减小作用。这种经食管超声心动图观察使得能够更精确地表征和阐明不同类型的二尖瓣人工瓣膜反流束。
