目的 探讨CT增强检查中合理提高对比剂注入前预注射生理盐水的流速在减少肿瘤非首疗程化疗患者对比剂外渗发生率中的应用价值.方法 选取2019年7月至2020年10月在中南大学湘雅医院肿瘤化疗科接受非首疗程化疗行常规CT增强检查的1266例患者分为A组、B组、C组、D组、E组及F组,A组采用与对比剂相同速率(2.0 mL/s)进行生理盐水预注射,B组、C组、D组、E组及F组采用较对比剂注射流速依次递增0.1 mL/s速率进行生理盐水预注射.比较6组预注射外渗率及当各组预注射均未发生外渗时出现的对比剂外渗率情况.结果 A组与B组、C组及D组预注射外渗率比较,差异无统计学意义(P＞0.05).A组预注射外渗率低于E组和F组,差异有统计学意义(P＜0.05).A组与B组对比剂外渗率比较,差异无统计学意义(P＞0.05).A组对比剂外渗率高于C组、D组、E组和F组,差异有统计学意义(P＜0.05).结论 合理提高生理盐水预注射速率,能够有效降低肿瘤非首疗程化疗患者CT增强检查时对比剂的外渗风险.

【Objective】To explore the clinical value of normalized operative cooperation during laparoscopic cholecystectomy(LC).【Methods】Some normalized measures of operative cooperation,such as setting up a special nurse team,receiving standardized training,making flowcharts and quantifying quality assessment index,were performed on 256 patients who underwent LC,then the effects of these measures were evaluated.【Results】The mean operating time and average hospital stay were(42.2±27.4) minutes and(4.5±1.2) days,respectively.The rates of accurate utensils preparation and normal equipment running were 98.8% and 99.2%,respectively.The satisfaction degrees of physicians and patients were 92.4% and 90.1%,respectively.【Conclusion】Practicing normalized operative cooperation during LC is helpful to improve the quality of nursing care,ensure the success of operation and reduce complications.