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| The ECG changes in pheochromocytoma |
| XI Xin, GUO Hui-Ling |
| (CardioPulmonary Function Test Center，Hunan Tumor Hospital，Changsha Hunan 410013，China |
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Abstract Objective To investigate the ECG changes in pheochromocytoma. [WTHZ]Methods[WT]43 cases of pheochromocytoma patients preoperative ECG examination, patients with preoperative have high blood pressure can be divided into group A (13 cases), no high blood pressure in group B (30 cases), compare electrocardiogram change difference between two groups have statistical significance. [WTHZ]Results[WT]Group A and group B preoperative STT change of 7 cases respectively, 9 cases; A total of 16 cases of about 37.2%. Left ventricular surface of high voltage respectively 4 cases, 1 case; A total of 5 cases of about 11.6%. Sinus arrhythmia in 1 case, respectively, 1 case, a total of 2 cases, accounting for about 4.65%; Left anterior branch block respectively 0 cases, 2 cases; Acceleration border sex rhythm of the heart in 1 case, respectively, 0 cases; Right ventricular surface of high voltage respectively 0 cases, 1 case; Room sex premature beat respectively 0 cases, 1 cases; Ventricular premature beat, respectively 0 cases, 1 cases; Early bipolar respectively 0 cases, 1 cases. Conclusion group A and group B preoperative ecg STT change, the difference between the two groups has no statistical significance, preoperative electrocardiogram (ecg) changes in STT in the majority, A total of 16 cases accounted for about 37.2%, consider possible for pheochromocytoma hypersecretion catecholamine caused by myocardial injury. Group A and group B increased preoperative electrocardiographic left ventricular surface voltage, the difference between the two groups was statistically significant, considering possible reasons for A group of sustained high blood pressure, so compared with group B were more likely to overload caused by sustained hypertension left ventricular contraction caused in addition to the electric power increase，Characterized by increased left ventricular surface voltage. Preoperative ecg sinus arrhythmia group A and group B, the difference between the two groups have no statistical significance, sinus arrhythmia group A and group B are all young people is normal physiology reaction.
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2015, Vol. 24 
