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17.248  Articles
1 of 1.726 pages  |  10  records  |  more records»
Heart failure (HF) is a worldwide health problem with high prevalence rate. The prevalence is over 23 million worldwide. It is a chronic disease characterized by the inability of the heart to pump an adequate amount of blood to achieve the demand of the d... see more

The changes of functional blood circulation parameters in 19 patients (13 men and 6 women) at the annual stage after cardiac resynchronization (CRT) and drug therapy in pulse pressure classes (PP: I - very low PP - less than 20 mm Hg; II – low P... see more

BACKGROUND: Cardiac resynchronization therapy (CRT) is a medical device to help cardiac synchronized contractility by electrical impulses. Improvement of symptoms and left ventricular systolic function, reducing hospital admissions and mortality in patien... see more

INTRODUCTION: Although strict selection criteria are used to select patients for cardiac resynchronisation therapy, up to 30% of patients do not have a positive clinical response.PATIENTS: A total of 102 consecutive patients who had biventricular pacemake... see more

A case of cardiac resynchronization is presented with paced-QRS narrowing effected via a left ventricular (LV) lead placed at an anterior cardiac vein after failed implantation at the lateral wall due to phrenic nerve stimulation. Data are presented indic... see more

A 71-year-old male with ischemic cardiomyopathy, severe systolic left ventricular dysfunction and symptomatic heart failure was not considered a good candidate for implantation of a biventricular pacing system to effect cardiac resynchronization due to un... see more

Background: Although cardiac resynchronization therapy (CRT) is well established as an adjunctive heart failure treatment, a 30% rate of nonresponders poses a challenge to improve the detection of potential responders prior to device implantation. A previ... see more

In recent years, implantation of cardiac resynchronization therapy (CRT) devices has significantly increased. Left ventricular (LV) pacing through the Coronary Sinus (CS) is the standard approach for CRT. Many LV lead placement techniques to get lead stab... see more

It has been long acknowledged that electrical-conduction disturbances may be both a cause of heart failure and a consequence of it. In fact, many patients with heart failure have an asynchronous contraction pattern of the heart muscle that further reduces... see more

1 of 1.726 pages  |  10  records  |  more records»