8 A Scoring System for Detecting Left Ventricular Diastolic Dysfunction in Hypertensive Patients

Abstract

Introduction: Hypertension is the most common condition seen in primary care and a risk factor for diastolic dysfunction. Diastolic dysfunction occurred before heart failure in hypertensive patients with preserved ejection fraction, therefore early diagnosis of diastolic dysfunction is very important. Several factors have been known to be associated with left ventricular diastolic dysfunction and a new scoring system could be generated from those factors. Methods: A cross sectional study was conducted in Tarakan General District Hospital North Kalimantan with hypertensive subjects on October 2016. Patients characteristics, all factors related to left ventricular diastolic dysfunction, and echocardiographic data were collected and analysed. Results: There were 132 total samples in this study, and left ventricular diastolic dysfunction was found in 40.2% samples. From logistic regression analysis, age ≥55 years old (p = 0.006), poor blood pressure control (p < 0.001), left ventricular hypertrophy (p = 0.003), and abnormal fasting blood glucose (p = 0.001) were found to have a significant relation with left ventricular diastolic dysfunction and became a final model variables of scoring system. Left ventricular diastolic dysfunction scoring system could be generated form those variables final models. Calibration and internal validation tests for this scoring system showed good results. Conclusion: A scoring system can be generated to detect left ventricular diastolic dysfunction in hypertensive patients.