Kühn P, Kroiss A, Joskowicz G
Z Kardiol. 1976 Feb;65(2):166-75.
Four arrhythmia computers presently available on the market were tested with respect to their efficiency in identifying abnormal QRS-complexes. A considerable variation for the calculated sensitivity and specificity has been found with a highest value for sensitivity (92.9%) combined with a low specificity (72.4%), and a highest value for specificity (100%) combined with a very low sensitivity (36.6%). The best results were obtained by a computer with a sensitivity of 90.9% and a specificity of 98.5%. For the routine use of these computers in the CCU common artifacts (e.g. muscle potentials) must influence their performance in a practical way: neither should minor artifacts stop the function completely nor should the computer continue to measure with a high level of "noise". Based upon the results of these test series suggestions for the concept of arrhythmia computers for CCU are presented.
对目前市场上现有的四台心律失常分析计算机识别异常QRS波群的效率进行了测试。结果发现，计算得出的灵敏度和特异度存在很大差异，灵敏度最高值为92.9%，但特异度较低（72.4%）；特异度最高值为100%，但灵敏度极低（36.6%）。一台灵敏度为90.9%、特异度为98.5%的计算机取得了最佳结果。对于这些计算机在冠心病监护病房（CCU）的常规使用，常见伪迹（如肌肉电位）必然会在实际应用中影响其性能：轻微伪迹既不应完全停止其功能，计算机也不应在“噪声”水平较高的情况下继续进行测量。基于这些测试系列的结果，提出了针对CCU心律失常分析计算机概念的建议。
