De Ponti C, Gibelli G, Sozzi G, De Vita C, Casolo F, Rovelli F
G Ital Cardiol. 1976;6(4):574-81.
--123 atrial pacings (AP) performed as diagnostic investigations in patients with chest pains were re-examined. By using floating catheter without fluoroscopic control, this technique is very simple to perform and free from relevant risks. The diagnostic sensibility and specificity of AP were examined in 93 patients in which a coronary arteriography was performed; these figures were compared with the corresponding values observed in 65 patients in which an adequate diagnostic exercise test (ET) was also available. The diagnostic sensibility of AP examined in 63 patients with significant coronary artery disease was 90%; the corresponding value of ET was 79%. In particular, in patients with single vessel disease, the sensibility of AP (90%) was much higher than that observed in ET (40%). The specificity of AP examined in 30 patients free from significant stenosis of the coronary arterial tree was 43%. This value was largely lower than that observed in ET (82%) in the same patients, and appears to be inadequate for validation AP as a diagnostic tool in coronary heart disease. Therefore, AP must be limited to functional, and not diagnostic, evaluation of patients in which the diagnosis of coronary heart disease can be made by other means.
对作为胸痛患者诊断性检查进行的123次心房起搏（AP）进行了重新检查。通过使用无荧光透视控制的漂浮导管，该技术操作非常简单且无相关风险。在93例行冠状动脉造影的患者中检查了AP的诊断敏感性和特异性；将这些数据与65例也进行了充分诊断性运动试验（ET）的患者中观察到的相应值进行比较。在63例患有严重冠状动脉疾病的患者中检查的AP诊断敏感性为90%；ET的相应值为79%。特别是，在单支血管疾病患者中，AP的敏感性（90%）远高于ET中观察到的敏感性（40%）。在30例冠状动脉树无明显狭窄的患者中检查的AP特异性为43%。该值远低于同一患者中ET观察到的特异性（82%），并且似乎不足以验证AP作为冠心病诊断工具的有效性。因此，AP必须仅限于对可通过其他方法诊断冠心病的患者进行功能评估，而非诊断评估。
