Screening for QT Prolongation Using a New Exponential Formula

• Published in: JAPANESE CIRCULATION JOURNAL Vol. 59; no. 4; pp. 185 - 189
• Main Authors: Aihoshi, Sogo, Yoshinaga, Masao, Nakamura, Makoto, Oku, Shozo, Haraguchi, Tsutomu, Nishibatake, Makoto
• Format: Journal Article
• Language: English
• Published: Kyoto The Japanese Circulation Society 1995; Japanese Circulation Society
• Subjects: Biological and medical sciences; Child; Electrocardiography - methods; Electrocardiography. Vectocardiography; Electrodiagnosis. Electric activity recording; Female; Heart Rate; Humans; Investigative techniques, diagnostic techniques (general aspects); Long QT syndrome; Long QT Syndrome - diagnosis; Male; Mass Screening; Mathematical Computing; Medical sciences; Models, Cardiovascular; Prospective Studies; Prospective study; School-aged children; Sensitivity and Specificity; Human; Prolonged QT interval; Cardiovascular disease; Exploration; Medical screening; Exponential function; Electrodiagnosis; Mathematical formula; Electrocardiography; Calculation; Sign; Child; Corrections

We prospectively screened 14, 227 school-aged children for evidence of QT prolongation using a exponential formula (eQTc=(QT interval)/(RR interval)0.31) and criteria (ie: abnormal eQTc was defined as being equal to or greater than 0.430 and 0.435 for male and female first-graders, respectively, and...