AIMS In EchoCRT, a randomized trial evaluating the effect of cardiac resynchronization therapy (CRT) in patients with a QRS duration of <130 ms and echocardiographic evidence of left ventricular dyssynchrony, the primary outcome occurred more frequently in the CRT when compared with the control group. According to current heart failure guidelines, CRT is recommended in patients with a QRS durat...

BACKGROUND Little is known about predictors of response to cardiac resynchronization therapy (CRT) in patients with intraventricular conduction delay (IVCD). The purpose of this study was to investigate the benefits of CRT and significant variables on surface electrocardiogram (ECG) to predict response to CRT in those patients. METHODS AND RESULTS Among the cohort of 152 CRT patients, 40 pati...

Based on the Chinese Remainder Theorem (CRT), Quisquater and Couvreur proposed an RSA variant, RSA-CRT, to speed up RSA decryption. Then, Wiener suggested another RSA variant, Rebalanced RSA-CRT, to further accelerate RSA-CRT decryption by shifting decryption cost to encryption cost. However, such an approach makes RSA encryption very timeconsuming because the public exponent e in Rebalanced RS...

AIMS The purpose of this EP Wire is to compare indications, techniques, implant strategy, and follow-up regarding cardiac resynchronization therapy (CRT) in several countries across Europe. METHODS AND RESULTS Forty-one centres, members of the EHRA-EP Research Network, responded to this survey and completed the questions. Thirty-two per cent of the responding centres always use CRT in heart f...

Background: Left ventricular dyssynchrony plays an important role in predicting response to Cardiac Resynchronization Therapy (CRT). Methods: Thirty patients underwent CRT implantation. Assessment of Left Ventricular (LV) dyssynchrony was done through Gated Spect LV phase analysis. Results: Thirty patients received CRT (mean age 58.7 ±9.0, 24 males). CRT implantation had a favorable prognosis o...

To better understand the mechanisms contributing to improved exercise capacity with cardiac resynchronization therapy (CRT), we studied the effects of 6 mo of CRT on pulmonary O(2) uptake (Vo(2)) kinetics, exercise left ventricular (LV) function, and peak Vo(2) in 12 subjects (age: 56 ± 15 yr, peak Vo(2): 12.9 ± 3.2 ml·kg(-1)·min(-1), ejection fraction: 18 ± 3%) with heart failure. We hypothesi...

Previous epidemiologic studies investigating central venous catheter (CVC)-related venous thromboembolism (CRT) were conducted in heterogenous cancer populations and data in breast cancer (BC) remain limited. To investigate the Doppler ultrasound (DUS)-CRT incidence, risk factors and outcomes in BC, we designed a prospective, multicenter cohort of nonmetastatic invasive BC patients undergoing i...

OBJECTIVE This study aims to evaluate the efficacy of chemoradiotherapy (CRT) in cervical cancer using diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) values. METHODS A total of 71 patients with cervical cancer were enrolled in this study. All patients underwent conventional magnetic resonance imaging and DWI scanning before CRT and at 7, 14, 21 days, and 6 months a...

COMPANION (Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure), the first cardiac resynchronization therapy (CRT)-heart failure mortality and morbidity controlled clinical trial planned, conducted, and reported, was a randomized, 3-arm study that compared CRT delivered by a biventricular pacemaker (CRT-P) or a CRT defibrillator device (CRT-D) with optimal pharmacological ...

BACKGROUND Urinary metabolite measurements are often normalized to levels of the ubiquitous metabolite creatinine (CRT) to take account of variations in fluid export. Following CRT normalization, excesses of porphyrins and isoprostanes have been reported in the urines of children with neurodevelopmental disorders. It was suggested (Whiteley et al., 2006, Pediatr. Int. 2006; 48: 292-297) that ur...