RT Journal Article T1 Relationship between QT Interval Length and Arterial Stiffness in Systemic Lupus Erythematosus (SLE): A Cross-Sectional Case-Control Study. A1 Rivera-López, Ricardo A1 Jiménez-Jáimez, Juan A1 Sabio, José Mario A1 Zamora-Pasadas, Mónica A1 Vargas-Hitos, José Antonio A1 Martínez-Bordonado, Josefina A1 Navarrete-Navarrete, Nuria A1 Fernández, Ricardo Rivera A1 Sanchez-Cantalejo, Emilio A1 Jiménez-Alonso, Juan K1 Aterosclerosis K1 Estudios transversales K1 Electrocardiografía K1 Lupus eritematoso discoide K1 Rigidez vascular AB INTRODUCTION AND OBJECTIVESThe QT interval on the electrocardiogram has been shown to be longer in patients with systemic lupus erythematosus (SLE) compared to that of the general population. The clinical significance of this finding is unknown. The aim of this study was to assess the relationship between QT interval and subclinical atherosclerosis, measured by carotid-femoral pulse-wave velocity.MATERIAL AND METHODS93 patients with SLE and 109 healthy women with similar basal characteristics were studied. All patients underwent a 12- lead electrocardiogram, and corrected QT interval (QTc) was measured using the Bazett's formula. The presence of atherosclerosis was evaluated by carotid-femoral pulse-wave velocity.RESULTSClinical basal characteristics were similar in both groups. QTc interval was 415±21.4 milliseconds in all patients, and 407±19.1 milliseconds in the control group (p = 0.007). There was a positive correlation between QTc interval and carotid-femoral pulse-wave velocity (r = 0.235; p = 0.02) in patients with SLE. This association was independent of hypertension and age in a multivariate analysis.CONCLUSIONQTc interval measured by electrocardiogram is prolonged in SLE patients; it is related to subclinical atherosclerosis, measured by carotid-femoral pulse-wave velocity. This measure may help stratify risk in routine clinical practice and select the patients that might benefit from a more aggressive therapy in the prevention of cardiovascular events. PB Public Library of Science YR 2016 FD 2016-04-11 LK http://hdl.handle.net/10668/2297 UL http://hdl.handle.net/10668/2297 LA en NO Rivera-López R, Jiménez-Jáimez J, Sabio JM, Zamora-Pasadas M, Vargas-Hitos JA, Martínez-Bordonado J, et al. Relationship between QT Interval Length and Arterial Stiffness in Systemic Lupus Erythematosus (SLE): A Cross-Sectional Case-Control Study. PLoS ONE. 2016; 11(4):e0152291 NO Journal Article; DS RISalud RD Apr 7, 2025