harris has said , `` '' one of the most insidious dangers in therapeutics is the complacency which develops when undesirable reactions are infrequent . with local anesthesia , this complacency is intensified by the knowledge that local anesthetics are given intravenously by intention in certain medical procedures . however , when this procedure is employed , the patient is hospitalized , in an operating room with emergency equipment and drugs instantly available . `` `` ( 1 ) dentists are aware of the possible consequences of intravascular injection of local anesthetics and know that these can range from lack of anesthesia to an unplesant experience or to a rare lethal one . ( 2-3 ) case histories of complications of intravascular injection appear regularly in the literature .
C0184661
procedur
C0002903
anesthes