Objective: To find the characteristics of QT interval dispersion (QTd) in obesity-related hypertensive patients.
Methods: The study comprised 73 obesity-related hypertensive patients (group A), 58 nonobesity-related hypertensive patients (group B) and 105 healthy persons as control (group C). The maximum QT interval (QTmax), minimum QT interval (QTmin) and QTd were compared.
Results: The QTmax, QTmin and QTd of groups A and B were higher than those in group C; the difference was statistically significant (p < 0.05). The QTmax, QTmin and QTd of group A were higher than those in group B; the difference was statistically significant (p < 0.05).
Conclusion: High cholesterol and high blood pressure of long standing cause blood lipid metabolic disorders and may lead to blood flow that affects the myocardial cells to varying degrees. QT interval dispersion can be used as a forecast indicator of malignant arrhythmia, so great importance should be given to obesity-related hypertensive patients by timely and effective treatment to improve the survival rate.