Simple units for testing defibrillators

An animal model for testing automatic defibrillators.

A promising therapy for ventricular fibrillation--a life-threatening cardiac arrhythmia--is implantation of an automatic defibrillator. A critical component of such a device is the system that detects the presence of ventricular fibrillation. Automatic systems for detecting ventricular fibrillation have been tested with arrhythmias produced by electric shocks in normal canine hearts, but have n...

[Is defibrillation testing necessary for implantable transvenous defibrillators].

-categories with Non-simple Units

We study the general structure of 2-C∗ -categories closed under conjugation, projections and direct sums. We do not assume units to be simple, i.e. for ιA the 1-unit corresponding to an object A , the space Hom(ιA, ιA) is a commutative unital C∗ -algebra. We show that 2-arrows can be viewed as continuous sections in Hilbert bundles and describe the behaviour of the fibres with respect to the ca...

Defibrillation thresholds testing of implantable cardioverter-defibrillators at implantation.

I read with interest the reports on defibrillation testing (DFT) during implantable cardioverter-defibrillator (ICD) implantation published recently in JACC (1,2). There is a significant, albeit low, risk to serious complications including death during DFT testing. If the implantation data as measured through the device are satisfactory, then should we induce ventricular fibrillation (VF) in a ...

Significance of intraoperative testing in right-sided implantable cardioverter-defibrillators

BACKGROUND Implantation of implantable cardioverter-defibrillators (ICD) from the left pectoral region is the standard therapeutical method. Increasing numbers of system revisions due to lead dysfunction and infections will consecutively increase the numbers of right-sided implantations. The reliability of devices implanted on the right pectoral side remains controversially discussed, and the q...