Research Article
Electrical Remodeling of Ventricular Repolarization Abnormality after Treatment in Pheochromocytoma: U Wave Finding in a Retrospective Analysis
Table 4
Linear correlations of U wave amount in 12-lead ECG and tumor size.
| | Beta | r2 | P value |
| Number of U wave | | | | Systolic blood pressure (mmHg) | 0.494 | 0.244 | 0.031 | Diastolic blood pressure (mmHg) | 0.624 | 0.390 | 0.004 | Fasting glucose (mg/dl) | 0.122 | 0.015 | 0.599 | Metanephrine μg/24-hours | 0.557 | 0.333 | 0.015 | Normetanephrine μg/24-hours | 0.404 | 0.163 | 0.108 | 3-methoxytyramine μg/24-hours | 0.654 | 0.428 | 0.006 | P wave (msec) | -0.127 | 0.016 | 0.628 | PR (msec) | -0.065 | 0.004 | 0.791 | QRS (msec) | 0.280 | 0.078 | 0.232 | QTc (msec) | -0.001 | 1.605−6 | 0.996 | Heart rate (bpm) | 0.037 | 0.001 | 0.872 |
| Tumor size | | | | Systolic blood pressure (mmHg) | 0.081 | 0.007 | 0.765 | Diastolic blood pressure (mmHg) | 0.112 | 0.013 | 0.679 | Fasting glucose (mg/dl) | 0.077 | 0.005 | 0.760 | Metanephrine (μg/24-hours) | 0.615 | 0.378 | 0.019 | Normetanephrine (μg/24-hours) | 0.893 | 0.798 | <0.001 | 3-methoxytyramine (μg/24-hours) | 0.792 | 0.627 | 0.001 | P wave (msec) | 0.065 | 0.004 | 0.818 | PR (msec) | 0.093 | 0.009 | 0.722 | QRS (msec) | -0.022 | 4.759−4 | 0.932 | QTc (msec) | -0.061 | 0.004 | 0.809 | Heart rate (bpm) | 0.238 | 0.057 | 0.341 | Presence of U wave | 0.655 | 0.429 | 0.003 |
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