CO2蓄积(国外英文资料).docVIP

CO2蓄积 Pathological changes of laparoscopic surgery and the treatment of anesthesia In the 70 s since the application of laparoscopic gynecology diagnostic surgery, because of its small trauma, rapid recovery, light postoperative pain, shorter hospitalization time and cost is relatively low, not only has been widely applied in the field of obstetrics and gynecology, and gradually extended to general surgery, liver and gallbladder surgery, thoracic surgery, and other fields, and become the one of the worlds three major symbol of medical development (minimally invasive surgery, organ transplantation, gene therapy). But with the widespread use of laparoscopic surgery, the increasing number of related complications has not yet aroused enough attention from people, and there is still a lot of news about the cardiac arrest. It is necessary to raise awareness of anesthesia in laparoscopic surgery. The physiological effects of laparoscopic surgery on the body (1) the effect of the air on the respiratory system: The abdomen - the internal pressure increases dramatically The phrenic muscle is removed and the movement is limited; An increase in the internal pressure of the chest; Lower lung compliance: lower lung segment under pressure, lung capacity, decreased functional residual volume, and increased alveolar mass. The pressure of the air channel is higher, usually , 20mmHg; The effect of the air on the circulation system The mechanical compression of IAP is most evident in hemodynamic interference. A higher IAP has two diametrically opposite effects on the circulatory system, depending on how the body responds to changes in the IAP. The blood flow from the internal organs of the abdomen and the inferior vena cava to the heart. The lower cavity vein increases, the blood flow slows down, and blood clots and clots form; Lower lung capacity, increased airway resistance, reduced blood flow to the heart, and lower heart load. The external resistance (SVR) of the compression of th