急性心肌梗塞患者两周运动负荷试验的临床应用研究

EARLY EXERCISE TESTING OF PATIENTS RECOVERING FROM ACUTE MYOCARDIAL INFARCTIONS

通过对22例急性心肌梗塞（AMI）早期患者进行早期心电图运动负荷试验（EET），结果发现阳性者10／22例（占45．45％），阳性者发生心脏事件较阴性者为高（X2＝4．77，P＜0.05）。平均随访（1．33±0．84）年，阳性组有5例发生梗塞后心绞痛，阴性组仅1例（P＜0.05）。EET者在3个月内恢复工作的其运动时的收缩压增加值为（7．80±3．19）kPa，总功率为（112.50±3．06）W，而超过3个月复工者则分别为（4．88±3．64）kPa和（82．14±11．29）W（P＜0．05）.同对照组比较，其住院时间明显减少（P＜0．005～0．0005），恢复工作的时间亦明显缩短。

Bicycle ergonometer with Iimited symptom stress tests (ST) were performed on 22 patients with acute myocardial infarctions (AMI). The early exercise testing (EET) was performed 12. 5±4. 89 days (approx. two weeks) after AMI. EET was positive for ST changed in 10 of 22 patients (45. 45 % ). Five patients who were EET positive had angina pectoris, while only one of the EET negative patients had angina pectorls (50. 00% vs 8. 33%, P＜0.05). The maximum power and systolic blood pressure increase of the patients who returned to work within three months was higher than that of the patients who returned to work after three months, or who did not return to work at all (112.50±3.06 vs 82. 14±11 .29 and 7.80±3. 19 vs 4.88±3.64 kPa, all＜0.05). The hospitalizatlon expenses were significantly lower for the EET group than for the non - EET group. The results suggest that EET can be clinically important in the management of cardiac rehabilitation, the promotion of patients returning to work and in the prognosis of heart disease.