ABSTRACT
High technology promotes the rapid development of the surgery. Various high and new technologies emerge to benefit patients and doctors. However, it is not surprising that there are unavoidable problems at the same time. Any situation needs to be analyzed from two aspects, which can be called the "double-edged sword" effects. Talking about and paying attention to these circumstances can promote the better application of high technology in the field of surgery.
ABSTRACT
Calcium supplement is needed for Chinese people.Calcium antagonists are also used in China.Authors suggest that calcium owns dual direction effects like a double-edged sword.Based on the knowledge of calcium metabolism,the adverse drugs reactions of excessive calcium supplement and the harmful effects of cellular calcium overload are introduced.Scientific and efficient application of calcium agents and calcium antagonists is expected.