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目的通过测量右心耳壁厚度及梳状肌间凹深度,为临床心房起搏电极的定位提供解剖学基础。方法将50具经福尔马林处理尸体的右心耳,按水平距离和垂直距离分成内上、外上、内中、外中、内下、外下6个区域,测量各区的心肌壁厚度及梳状肌间凹。另用5具尸体于福尔马林处理前后行上述数据测定,以获得心壁厚度和梳状肌间凹深度的增减百分率,并对50具处理尸体的测值作校正。结果50具经福尔马林处理尸体和5具未经福尔马林处理尸体的心耳壁厚度和梳状肌间凹的深度作比较,无统计学差异(P>0.05);但女性右心耳较男性小(P<0.05)。结论经福尔马林处理尸体的测值校正后能反映新鲜尸体的情况。右心耳内上、外上区域(梳状肌间凹的深度>6 mm)适宜翼状电极定位。内上、外上及内中区域(心耳壁厚度≥2 mm)用螺旋电极定位是安全的;女性患者电极定位要注意安全。
Objective To provide an anatomical basis for the location of clinical atrial pacing electrodes by measuring the thickness of the right atrial appendage and the depth of intervertebral foramen. Methods 50 right atrial appendage of formalin-fixed corpses were divided into 6 regions, ie, inside, outside, inside, outside, inside and outside under the horizontal distance and vertical distance, and the myocardial wall thickness Interdigital muscle. The other five bodies were measured before and after the formalin treatment before and after the data in order to obtain the wall thickness and the intermedullary pit depth of the percentage increase and decrease, and 50 to deal with the measured values corrected. Results There was no significant difference in the thickness of the auricle between 50 formalin-fixed corpses and 5 non-formalin-fixed corpses (P> 0.05). However, the right atrial appendage Less than men (P <0.05). Conclusion The measured values of formalin-treated corpses reflect the status of fresh corpses. Right atrial appendage, the outer area (comb the depth of the concave> 6 mm) suitable for wing electrode positioning. It is safe to locate the inner, outer and inner regions (atrial appendage thickness≥2 mm) with a spiral electrode; the positioning of a female patient’s electrode should be safe.