A Study On YunnanBaiyao That Effected The Patients' Bleeding Volume In Cervical Posterior Laminoplasty

Bleeding or especially massive bleeding is a severe neopathy during the operation,both jam proceeding of the operation and endanger patient's life.Increasing bleeding is always a target for surgery. the normal way is massive trasfertion of variant blood with carefully preparation before operation,exquisiting skills and cooperation between operators to decrease bleeding.but it is think highly of decreasing transferation of variant blood because lack of the source of blood after publishing 《Blood Donation Law of the People's Republic of China》 and increasing blood transmissible diseases.There are some reports about suceeding in decreasing transferation of variant blood in many fieds and has good effects,for example, in department of orthopaedics,O&G, ect. Nowdays,the autohemotransfusion is so popular on abroad.It includes preoperative autologous blood in reserve and reclamation of losing blood during or after operation.Transferation of variant blood can be decreased and the death caused by transfertion will reduce 70% by the autohemotransfusion .The equipment of autohemotransfusion and the materials of the disposable autohemotransfusion are considerably expensive, which incompetences...