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For patients with more than 1,000 PVCs per day, the risk of developing left ventricular systolic dysfunction after 5 years follow-up is low. Frequent PVCs may increase the risk of developing cardiomyopathy, which can greatly impair heart function. A PVC burden greater than 10% is the minimal threshold for development of PVC-induced cardiomyopathy.
When the atrial rhythm is irregular (as in atrial fibrillation or sinus arrhythmia) the presence of bigeminy depends on the length of the P–P interval and happens more frequently with a longer interval. As with post PVC pauses, a longer P–P interval leads to a higher chance of re-entrant circuits and thus PVCs.
In a fire, PVC can form hydrogen chloride fumes; the chlorine serves to scavenge free radicals, making PVC-coated wires fire retardant. While hydrogen chloride fumes can also pose a health hazard in their own right, it dissolves in moisture and breaks down onto surfaces, particularly in areas where the air is cool enough to breathe, so would ...
Barger, whose district includes Altadena, said she wants to go further, contending that predatory landlords across L.A. County should pay a steep price. “I always smile when I hear someone say ...
Palantir Technologies Inc. (NASDAQ:PLTR) disclosed that it has received FedRAMP High Authorization for its Palantir Federal Cloud Service (PFCS) and Palantir Federal Cloud Service – Supporting ...
Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin. CPVC is significantly more flexible than PVC, and can also withstand higher temperatures. Uses include hot and cold water delivery pipes and industrial liquid handling.
Sierra Space, one of the space industry’s most valuable private companies, plans to go public within the next 18 months, according to its CEO. Sierra Space, valued at $5.3 billion, eyes IPO to ...
PVC plastic is often called "vinyl" and this type of clothing is commonly known as vinyl clothing. [2] PVC is sometimes confused with the similarly shiny patent leather. The terms "PVC", "vinyl" and "PU" tend to be used interchangeably by retailers for clothing made from shiny plastic-coated fabrics.