Search results
Results from the WOW.Com Content Network
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.
It is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC). Vinyl chloride is a colourless flammable gas that has a sweet odor and is carcinogenic . Vinyl chloride monomer is among the top twenty largest petrochemicals ( petroleum -derived chemicals) in world production. [ 2 ]
Cat scratches are typically not something to worry much about, says Dr. Barbara Bawer, a family medicine physician at the Ohio State University Wexner Medical Center in Columbus, Ohio.
PBTs are a unique classification of chemicals that have and will continue to impact human health and the environment worldwide. The three main attributes of a PBT (persistence, bioaccumulative and toxic) each have a huge role in the risk posed by these compounds.
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 ...
There are many ways to show gentle care for your loved ones, and one of the simplest, but also most enjoyable, is to simply tuck them in when they sleep. Our spouses, our children, our parents ...
In recent years, PVC has been replacing traditional building materials such as wood, concrete and clay in many areas. The use of non-PVC materials has been on the rise due to concerns about the environmental and toxicity characteristics of PVC. This is weasel wording. "Is being gradually replaced"? "Has been on the rise"?