One of the most important considerations in the acute management of atrial fibrillation is the need for anticoagulation (see the image below). Acute cardioversion for AF carries a risk of thromboembolism unless anticoagulation therapy is initiated prior to the procedure and continued post procedure.
The glass fibers are made of various types of glass depending upon the fiberglass use. These glasses all contain silica or silicate, with varying amounts of oxides of calcium, magnesium, and sometimes boron.
To build one fiberglass boat, it is often said, you must in fact build two boats: the finished product and the mold from which it springs. With a female mold, you normally build three boats to get one--first a male plug on which the female mold is formed, then the mold, and finally the boat itself. Capital costs, therefore, are quite high, which is why truly custom one-off fiberglass boats are quite rare. It is possible to build fiberglass boats cost-effectively, but only if many boats are born of the same mold.