BACKGROUND An artificial disc prosthesis is thought to restore segmental motion in the lumbar spine. However, it is reported that disc prosthesis can increase the intervertebral translation (VT). The concept of the mobile-core prosthesis is to mimic the kinematic effects of the migration of the natural nucleus and therefore core mobility should minimize the VT. This study explored the hypothesi...

Background. Many studies have combined patients with hemodynamically well-tolerated ventricular tachycardia (VT) and those with cardiac arrest (CA) as a single, homogenous group. Recent studies suggest that these two groups have different electrophysiological substrates and responses to therapy. Most of these studies, however, enrolled patientswith a variety of cardiac diagnoses. Methods and Re...

This case report describes sustained monomorphic ventricular tachycardia (VT) caused by a large epicardial scar, related to dilated-phase hypertrophic cardiomyopathy mimicking VT originating from the apical septum. VT resolved with epicardial catheter ablation. The exit of the VT circuit suggested that a 12-lead electrocardiogram can be remote with respect to the critical isthmus in this case. ...

A transvenous implantable cardioverter defibrillator (ICD) was implanted into a 58 year old woman with idiopathic dilated cardiomyopathy who had drug refractory monomorphic ventricular tachycardia (VT). Antitachycardia pacing failed to terminate the VT; termination was attempted at 24 J, which was above the defibrillation threshold. When cardioversion at 24 J was delivered, VT with a different ...

In this paper, we outline a theory of referential accessibility called Veins Theory (VT). We show how VT addresses the problem of "left satellites", currently a problem for stack-based models, and show that VT can be used to significantly reduce the search space for antecedents. We also show that VT provides a better model for determining domains of referential accessibility, and discuss how VT...

OBJECTIVES Cardiac hepatopathy is an important differential diagnosis of acute liver failure. Slow ventricular tachycardia (slow VT) is a ventricular tachycardia (VT), in which heart rate is below the typical frequency of VT. We here report a case of acute liver failure in a patient with slow VT. METHODS The 64-year old male patient with history of cardiac pacemaker implantation for complete ...

Six-hour ECG recordings were performed every four months during follow-up periods (4-48 months) in 915 patients less than 66 years of age who survived the hospital phase of myocardial infarction. One hundred ninety-nine episodes of ventricular tachycardia (VT) were identified in 66 patients. Most patients (74%) had only one episode of VT. In 47% of the patients, the longest run of VT consisted ...

Accurately differentiating between ventricular fibrillation (VF) and ventricular tachycardia (VT) episodes is crucial in preventing potentially fatal misinterpretations. If VT is misinterpreted as VF, the patient will receive an unnecessary shock that could damage the heart; conversely, if VF is incorrectly interpreted as VT, the result will be life-threatening. In this study, a new method call...

This article contains a CommonKADS description of the Sisyphus ’93 problem : the VT elevator design . The term ‘‘CommonKADS’’ is used to refer to KADS as it has been developed within ESPRIT project P5248 KADS-II . The goal of this project was to arrive at a de facto European standard for KBS development . As the term ‘‘KADS’’ has become strongly associated with the University of Amsterdam , it ...

Catheter ablation of ventricular tachycardia (VT) may reduce implantable cardioverter defibrillator (ICD) shocks and improve quality of life, but recurrence of VT after ablation is common and has been shown to be a strong predictor of mortality. However, not all recurrences may confer the same prognostic impact. A previous single-center study indicated that VT recurrence within a few days after...