Faysal Saylik1, Tayyar Akbulut2. 1. Department of Cardiology, Van Education and Research Hospital, Süphan Street, Airway Road, Edremit, 65100, Van, Turkey. faysalsaylik@gmail.com. 2. Department of Cardiology, Van Education and Research Hospital, Süphan Street, Airway Road, Edremit, 65100, Van, Turkey.
Abstract
PURPOSE: Subclinical hypothyroidism (SCH) patients develop left-ventricular dysfunction (LVD) in an earlier stage. LVD could be detected with myocardial performance index (MPI), left -ventricular global longitudinal strain (LVGLS), and conventional and tissue-Doppler imaging (TDI). A presystolic wave (PSW) detected on late diastole is associated with LVD. We aimed to determine whether there is an association between PSW and subclinical LVD assessed by different echocardiographic methods in SCH patients. METHODS: We prospectively enrolled 105 patients diagnosed with SCH in this study. Patients were divided into two groups based on the presence of PSW. Both groups were compared with respect to demographic, clinical, and echocardiographic properties. Multivariable regression analysis was performed to detect predictors of subclinical LVD. RESULTS: The study included 70 PSW-positive patients (66%, mean age: 50.2) and 35 PSW-negative patients (34%, mean age: 46.5). PSW-positive patients had a lower platelet and a higher RDW level compared to PSW-negative patients. PSW-positive patients had more frequent subclinical LVD, which was assessed by MPI, by conventional and TDI parameters, and by LVGLS. PSW velocity was significantly correlated with MPI velocity (r = 0.31, p = 0.009), TSH level (r = 0.44, p < 0.001), and with LVGLS (r = 0.33, p = 0.005). The presence of PSW was an independent predictor of subclinical LVD in multivariable logistic regression analysis detected with MPI, LVGLS, and TDI parameters (OR = 5.409, p = 0.03; OR = 4.872, p = 0.005; OR = 5.632, p = 0.014, respectively). CONCLUSION: PSW prevalence was 66% in SCH patients. PSW velocity was significantly correlated with MPI and LVGLS. The presence of PSW was independently associated with subclinical LVD in SCH patients.
PURPOSE: Subclinical hypothyroidism (SCH) patients develop left-ventricular dysfunction (LVD) in an earlier stage. LVD could be detected with myocardial performance index (MPI), left -ventricular global longitudinal strain (LVGLS), and conventional and tissue-Doppler imaging (TDI). A presystolic wave (PSW) detected on late diastole is associated with LVD. We aimed to determine whether there is an association between PSW and subclinical LVD assessed by different echocardiographic methods in SCH patients. METHODS: We prospectively enrolled 105 patients diagnosed with SCH in this study. Patients were divided into two groups based on the presence of PSW. Both groups were compared with respect to demographic, clinical, and echocardiographic properties. Multivariable regression analysis was performed to detect predictors of subclinical LVD. RESULTS: The study included 70 PSW-positive patients (66%, mean age: 50.2) and 35 PSW-negative patients (34%, mean age: 46.5). PSW-positive patients had a lower platelet and a higher RDW level compared to PSW-negative patients. PSW-positive patients had more frequent subclinical LVD, which was assessed by MPI, by conventional and TDI parameters, and by LVGLS. PSW velocity was significantly correlated with MPI velocity (r = 0.31, p = 0.009), TSH level (r = 0.44, p < 0.001), and with LVGLS (r = 0.33, p = 0.005). The presence of PSW was an independent predictor of subclinical LVD in multivariable logistic regression analysis detected with MPI, LVGLS, and TDI parameters (OR = 5.409, p = 0.03; OR = 4.872, p = 0.005; OR = 5.632, p = 0.014, respectively). CONCLUSION: PSW prevalence was 66% in SCH patients. PSW velocity was significantly correlated with MPI and LVGLS. The presence of PSW was independently associated with subclinical LVD in SCH patients.
Authors: Andrea Ripoli; Alessandro Pingitore; Brunella Favilli; Antonio Bottoni; Stefano Turchi; Nael F Osman; Daniele De Marchi; Massimo Lombardi; Antonio L'Abbate; Giorgio Iervasi Journal: J Am Coll Cardiol Date: 2005-02-01 Impact factor: 24.094
Authors: Nicolas Rodondi; Anne B Newman; Eric Vittinghoff; Nathalie de Rekeneire; Suzanne Satterfield; Tamara B Harris; Douglas C Bauer Journal: Arch Intern Med Date: 2005-11-28
Authors: Martin I Surks; Eduardo Ortiz; Gilbert H Daniels; Clark T Sawin; Nananda F Col; Rhoda H Cobin; Jayne A Franklyn; Jerome M Hershman; Kenneth D Burman; Margo A Denke; Colum Gorman; Richard S Cooper; Neil J Weissman Journal: JAMA Date: 2004-01-14 Impact factor: 56.272