Corson S L
Department of Obstetrics and Gynecology, Thomas Jefferson University School of Medicine, Philadelphia, Pennsylvania, USA.
J Am Assoc Gynecol Laparosc. 1997 May;4(3):375-9. doi: 10.1016/s1074-3804(05)80231-2.
Many of the technical difficulties and hazards associated with operative hysteroscopy revolve around management of the liquid distending medium. For the nurse, this involves vigilance in determining when the reservoir bag needs to be changed and when the return canister is full, and the task of calculating inflow-outflow deficits. The last is made more difficult by the fact that 3-L bags of dilute sorbitol or glycine most often used in hysteroscopy are not filled precisely, and readings of residual reservoir volume and canister levels are often made in darkened operating rooms. For the surgeon, the first issue is to achieve satisfactory intrauterine visualization that relates to the pressure and the flow of medium. Both surgeon and patient are understandably concerned about problems of excessive absorption of water from the electrolyte-free medium causing potentially life-threatening hyponatremia and hypervolemia. A system to manage hysteroscopic fluid was developed that addresses these concerns.
许多与手术宫腔镜检查相关的技术难题和风险都围绕着液体膨胀介质的管理。对于护士来说，这包括密切留意何时需要更换储液袋以及何时回收罐已满，还有计算出入量差值的任务。由于宫腔镜检查中最常使用的3升稀释山梨醇或甘氨酸袋并未精确装满，而且剩余储液量和罐内液位的读数通常是在昏暗的手术室中进行的，使得最后这项任务变得更加困难。对外科医生而言，首要问题是要实现与介质压力和流量相关的令人满意的子宫内视野。外科医生和患者都理所当然地担心无电解质介质中的水分过度吸收会导致潜在的危及生命的低钠血症和血容量过多问题。为此开发了一种宫腔镜检查液体管理系统来解决这些问题。
