Shakibi J G, Siassi B, Aryanpur I, Paydar M
J Electrocardiol. 1976;9(1):29-34. doi: 10.1016/s0022-0736(76)80006-4.
The Frank vectorcardiogram (VCG) and the electrocardiogram (ECG) were used to predict pulmonary arterial pressures in 30 pediatric patients with rheumatic mitral valve disease. The patients' ages ranged from eight to 14 1/2 years. Eleven were male and 19 were female. Sixteen had mitral stenosis, eight had mitral regurgitation and six had mitral stenosis and regurgitation. Mean pulmonary arterial wedge pressure ranged from 5-32 mmHg. All patients underwent complete catheterization and angiocardiographic study. None had significant gradient across the right ventricular outflow tract. Right maximum spatial vector (Rmsv) was calculated using Frank VCG.R in V1 and S in V5 of ECG were also measured. Rmsv, RV1, and SV5 were correlated with pulmonary arterial pressures (systolic, diastolic and mean). Pulmonary artery systolic pressure and Rmsv bear the best correlation (r=0.773). The correlation coefficient for pulmonary artery diastolic pressure and Rmsv was 0.698. Rmsv as calculated from Frank VCG is useful in prediction of pulmonary arterial pressures (systolic and diastolic) in pediatric patients with rheumatic mitral valve disease.
采用心向量图（VCG）和心电图（ECG）对30例风湿性二尖瓣疾病患儿的肺动脉压力进行预测。患儿年龄为8至14.5岁。其中11例为男性，19例为女性。16例有二尖瓣狭窄，8例有二尖瓣反流，6例有二尖瓣狭窄合并反流。平均肺动脉楔压为5至32 mmHg。所有患者均接受了完整的导管插入术和心血管造影研究。无一例患者右心室流出道存在明显压差。使用Frank心向量图计算右最大空间向量（Rmsv）。同时测量心电图V1导联的R波和V5导联的S波。Rmsv、RV1和SV5与肺动脉压力（收缩压、舒张压和平均压）相关。肺动脉收缩压与Rmsv的相关性最佳（r = 0.773）。肺动脉舒张压与Rmsv的相关系数为0.698。由Frank心向量图计算得出的Rmsv有助于预测风湿性二尖瓣疾病患儿的肺动脉压力（收缩压和舒张压）。
