Aims: In bradycardia patients treated with dual-chamber pacing, we aimed to evaluate whether pacing with atrioventricular (AV) delay management [AV hysteresis (AVH)], compared with standard pacing with fixed AV delays, reduces unnecessary ventricular pacing percentage (VPP) and is associated with better clinical outcomes. Main study endpoints were the incidence of heart failure hospitalizations (HFH), persistent atrial fibrillation (AF), and cardiac death.
Methods And Results: Data from two identical prospective observational studies, BRADYCARE I in the USA and BRADYCARE II in Europe, Africa, and Asia, were pooled.
Orthodromic atrioventricular reentrant tachycardia (AVRT) is the second-most-common form of supraventricular tachycardia (SVT) and is inducible in approximately 55% of individuals with Wolff Parkinson White (WPW) syndrome. Antidromic AVRT, where the accessory atrioventricular connection is used as the antegrade limb and the atrioventricular node serves as the retrograde limb of the circuit, has been clinically documented in less than 5% of patients with WPW syndrome and may be induced in less than 10% of these WPW cases in the electrophysiology laboratory. Left lateral pathways are considered more frequent and septal locations are less common when associated with antidromic AVRT.
View Article and Find Full Text PDFObjectives: The purpose of this study was to define the clinical characteristics and long-term follow-up of pediatric patients with short QT syndrome (SQTS).
Background: SQTS is associated with sudden cardiac death. The clinical characteristics and long-term prognosis in young patients have not been reported.
The Medtronic Sprint Fidelis leads (models 6930, 6931, 6948, 6949) are 6.6-F bipolar high-voltage implantable cardioverter-defibrillator electrodes that were first introduced in September 2004. In October 2007, Fidelis leads were removed from the market.
View Article and Find Full Text PDFObjectives: A discrepancy exists in the medical literature as to what effect intravascular ultrasound (IVUS)-guided stent deployment has on target vessel revascularization (TVR) at 6 months. The major endpoints of this study are the need for TVR, defined as clinically driven repeat interventional or surgical therapy of the index vessel at 6 months and major adverse cardiac events.
Methods: One hundred interventional stent cases (50 IVUS-guided, 50 non-IVUS guided) were randomly selected in a 6-month period (January to June 2001) for review by measurement of minimal luminal diameter (MLD) pre- and post-intervention.
Over the past 20 years, there has been a significant increase in the number of nosocomial infections. Nosocomial infections by fungal organisms, in particular Candida species, have shown the highest increase in incidence, currently being the leading pathogen in urinary tract infections and the fourth most common blood-born pathogen within hospitalized patients. This case report describes a patient with acute pancreatitis, complicated by acute renal failure, who developed nosocomial fungiuria and fungemia following bilateral ureteral stenting, and whose fungiuria persisted despite adequate antifungal treatment.
View Article and Find Full Text PDFCatheter Cardiovasc Interv
September 2002
A 72-year-old woman developed severe flank pain associated with hemodynamic compromise immediately after a J-curve guidewire was inadvertently advanced into the right renal artery during cardiac catheterization. Contrast extravasation consistent with perforation of the main renal artery was seen on abdominal angiography. The perforation was successfully sealed using a premounted coronary stent that was covered with an autologous antecubital vein.
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