外科手术（surgical operation）.doc

外科手术（surgical operation） Tissue suture requirements. The organization shall according to the level from deep to shallow and close the right to choose the right; 2) 3) suture; each layer contains suture tissue thickness should be equal to unity, symmetry, order, and should be on both sides for similar tissue suture; 4) the tightness of suture ligation to adapt to make a margin, closely linked, not separate organization and the suture ligation site tissue necrosis is appropriate; 5) no matter what kind of suture are foreign bodies, should minimize the amount of suture. Indications for drainage. Abscess or purulent infection 2) fluid or blood) 3 residual cavity after 4) and extensive soft tissue contusion wounds, extensive dissection, continue oozing exudate in 5) serious pollution, wound infection or tissue necrosis, not completely clear 6) gastrointestinal anastomosis or repair after surgery, liver and bile and pancreatic, urinary system after trauma or surgery, to prevent fluid leakage and accumulation of 7) 8) after thoracic surgery decompression. The purpose and indication of changing dressings. Changing purposes: 1) observe the wound 2) improve the wound environment 3) shorten the course of treatment 4) to protect the wound Indications for dressing change: 1) the wound should be cut out at the expiration of 2); the wound is placed in the drainage; it needs to be loosened or removed; 3) the wound has exudate and signs of bleeding; drainage fluid and exudate. Blood soaked dressings 4) the original excipients moved or dropped, infected 5) need to observe and examine facial conditions. Indications for appendectomy Acute appendicitis after non operative treatment, the condition is not controlled by adding 2) severe acute suppurative and gangrenous appendicitis, acute appendicitis perforation with diffuse peritonitis in 3 chronic appendicitis) 4) children, elderly or pregnant women with acute appendicitis 5) appendiceal ascariasis Suture method. Interrupted suture (ski