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CVN: Heart Minute

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

H1N1 & Myocarditis

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Journal Scan: Lead Extraction in the Contemporary Setting: The LExICon Study. An Observational Retro

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

This was a multicenter, retrospective analysis of 1,449 consecutive patients (mean age 63 years) who underwent LALE of 1,684 pacemaker leads and 703 defibrillator leads in 2004-2007. Complete success was defined as removal of all lead material and partial success was defined as removal of all but <4. . .

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Journal Scan: The Year in Congenital Heart Disease (J Am Coll Cardiol 2010;55:147-155.)

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

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Coronary Sinus Shocking Lead As Salvage In Patients with Advanced CHF and High Defibrillation Thresh

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Background: We report a series of three patients whose implantable cardioverter-defibrillators (ICD) implants were unsuccessful due to inability to achieve defibrillation thresholds (DFT) at maximum available energy after failure of standard modification and enhancement procedures. All patients had advanced cardiomyopathy. Methods: Use of the coronary...

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A Young Patient with Danon Disease Receives Two ICD Shocks: Why?

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

We report the case of an 18-year-old man with Danon disease, a genetic disorder inclunding a severe hypertrophic cardiomyopathy with very broad QRS, who had an implantable cardioverter defibrillator for primary prevention. Nine months after implantation, he received two inappropriate shocks due to R-wave double counting during sinus tachycardia. We discuss how to avoid such inappropriate therapy...

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Radiofrequency Transseptal Catheter Electrode Fracture

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Transseptal puncture is performed using a long needle advanced from the femoral approach. A radiofrequency catheter has been developed that delivers a short burst of radiofrequency energy and creates a micro puncture in the interatrial septum. We describe a case in which the distal radiofrequency electrode broke and became embedded in the interatrial septum...

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Predictors of Early Mortality in Patients Age 80 and Older Receiving Implantable Defibrillators

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Background: There are no upper age restrictions for implantable defibrillators (ICDs) but their benefit may be limited in patients [ge] 80 years with strong competing risks of early mortality. Risk factors for early (1-year) mortality in ICD recipients [ge] 80 years of age have not been established. Methods: Two-center retrospective cohort study to...

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Testing an Exercise Intervention to Improve Aerobic Conditioning and Autonomic Function after an Imp

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Background: Implantable cardioverter defibrillators (ICDs) are an increasingly common treatment for survivors of sudden cardiac arrest or others with life-threatening ventricular arrhythmias. Health-care providers are often reluctant to prescribe exercise for this group because of the belief that it will provoke ventricular arrhythmias and cardiac arrest...

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Acute Effects of Moxonidine on Cardiac Autonomic Modulation

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Background: Moxonidine, an imidazoline I1 receptor agonist, is a centrally acting antihypertensive agent having sympatholytic effect. However, there are only limited data regarding the effects of this drug on autonomic cardiac functions. Methods and results: In this study we investigated the acute effects of moxonidine on cardiac autonomic modulation by heart rate variability (HRV) analysis...

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Adrenomedullin Plasma Levels Predict Left Ventricular Reverse Remodeling after Cardiac Resynchroniza

cardiologylinks — Wed, 10 Mar 2010 03:43:21 GMT

Background: Increase in adrenomedullin (ADM) plasma levels in congestive heart failure (HF) patients is due to many cardiac and systemic factors, particularly to greater fluid retention and to activation of sympathetic nervous system. Aim of this study was to assess the role of plasma ADM levels in HF patients treated by cardiac resynchronization therapy (CRT)...

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