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本文对30名健康老年人和12例老年病窦患者(年龄60～75岁)在自主神经阻滞(静注阿托品和心得安)前后作经食道心房调搏和固有心率(IHRo)测定,并与中年组作对照。结果发现:自主神经阻滞后测得的窦房结恢复时间和校正窦房结恢复时间对诊断老年人病窦的敏感性和准确性比阻滞前大大提高(敏感性由66.67%提高到100%,准确性由88.1%提高到97.63%),而特异性不变(均为96.7%)。用 IHRo/IHRp-2SD<1诊断老年人病赛的特异性达100%,准确度也高(85.71%),但敏感性较低(50%)。在老年人中应用自主神经阻滞方法安全可行。
In this paper, 30 healthy elderly and 12 elderly patients with sinus diseases (aged 60-75 years) were measured transesophageal atrial pacing and intrinsic heart rate (IHRo) before and after autonomic nerve block (intravenous atropine and propranolol) Compared with the middle-aged group. The results showed that the sensitivity and accuracy of sinus node recovery and corrected sinus node recovery measured after autonomic nerve block were significantly higher than those before the block (sensitivity increased from 66.67% to 100 %, Accuracy increased from 88.1% to 97.63%), while the specificity remained unchanged (both 96.7%). The specificity of the IHRo / IHRp-2SD <1 diagnosis of geriatric race was 100%, with high accuracy (85.71%) but lower sensitivity (50%). Application of autonomic nerve block in the elderly is safe and feasible.