论文部分内容阅读
目的探讨房性早搏(简称房早)和室性早搏(简称室早)后点集与主导的窦性心律散点集的夹角在鉴别早搏起源方面的价值。方法打印每一例窦性心律合并房早或室早的24 h全心搏lorenz-RR散点图,用量角器测量其早搏后点集与45°线的夹角,并计算其平均值,同时观察早搏后点集的形态特征。结果 151例房早病例中,有86例后点集与主点集融合,认为其与主点集的夹角趋向于零,与主点集平行,有61例平均夹角4°,趋向于与主点集平行,这两者占房早样本的96%,4例与主点集平均夹角19°,占该样本的4%。174例室早样本中,有168例后点集与主点集的夹角明显,平均为19°,占96.5%,6例平均夹角10°,占该样本的3.5%。168例室早夹角显著后点集的形态特征为:当心动周期在一定范围内时(靠近原点),后点集与主点集夹角不变,当心动周期延长到一定程度时(远离原点),后点集的右上方部分(尾部)形态发生变化,出现三种走向,即夹角不变、拐向主点集(称之为翘尾状)、拐向横坐标轴(称之为压尾状)。其中夹角不变有123例、占73.2%,翘尾状有37例、占22.0%,压尾状有8例、占4.8%,房早后点集呈直线走势,右上部分翘尾状或压尾状不明显。结论 1早搏后点集的角度可作为判断早搏起源的重要指标。2早搏后点集的尾部(右上部)呈翘尾或压尾状,有利于诊断室早。
Objective To explore the value of the angle between the point set of atrial premature beats and ventricular premature ventricular contractions (APR) and the dominant sinus rhythm scatter set in discriminating the origin of premature beats. Methods The 24-h full-heart rate lorenz-RR scattergram was recorded for each case of sinus rhythm and atrial septal defect. The included angle between point set and 45 ° line was measured with a protractor and the mean value was calculated. Morphological characteristics of point set after premature beat. Results In the early cases of 151 cases, 86 post-point sets merged with the main point set, and the angle between them and the main point set tends to be zero. In parallel with the main point set, there are 61 cases with an average angle of 4 °, which tends to Parallel to the set of primary points, both accounted for 96% of the early samples, and the average angle between the four and the set of primary points was 19 °, accounting for 4% of the sample. Of the 174 early room samples, there were 168 posterior point sets and the main point set at an obvious angle, with an average of 19 °, accounting for 96.5%. Six of them had an average angle of 10 °, accounting for 3.5% of the sample. 168 cases of premature ventricular anterior angle was significantly point after the set of morphological characteristics as follows: when the cardiac cycle is within a certain range (near the origin), after the point set and the main point set the same angle, when the heart cycle extended to a certain extent (away from Origin), after the point set of the upper right part (tail) form changes, there are three kinds of trends, namely the same angle, turn to the main set of points (called the tail-like), turn to the horizontal axis For the pressure tail shape). Including the same angle in 123 cases, accounting for 73.2%, 37 cases of tail-like, accounting for 22.0%, 8 cases of pressure tail shape, accounting for 4.8%, the room points set a straight line trend, the upper right part of the tail or Pressure tail is not obvious. Conclusion 1 points after premature beat point set can be used as an important indicator to determine the origin of premature beats. 2 premature beats tail set point (upper right) is a tail or pressure tail, is conducive to the diagnosis of early room.