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目的:比较压力调节容量控制通气(PRVC)和压力控制通气(PCV)在小儿腹腔镜手术患者麻醉中控制呼吸应用的效果。方法:80例选择行腹腔镜手术的小儿患者进行常规麻醉诱导后分别采用PRVC和PCV,随机分为两组,I组为PRVC组,患儿采用压力调控节容积制通气,II组为PCV组,采用压力控制通气,观察两种模式机械通气时的吸气峰压(PIP),血液动力学参数。结果:PRVC模式较PVC模式吸气峰压(PIP)在气腹前、手术中、放气后相比均有明显降低,组间比较,差异具有统计学意义(P<0.05)。血液动力学参数比较,差异无统计学意义(P>0.05)。结论:PRVC模式结合了定压和定容模式的优点,降低了PIP过高导致气压伤的风险,减少术中人工调整的次数,根据患儿气道压力的改变及时调整,可安全应用于小儿腹腔镜手术麻醉病人的呼吸控制。
OBJECTIVE: To compare the effects of pressure-controlled volume controlled ventilation (PRVC) and pressure-controlled ventilation (PCV) on respiratory control in pediatric patients undergoing laparoscopic surgery. Methods: Eighty cases of pediatric patients who underwent laparoscopic surgery undergoing routine anesthesia induction were treated with PRVC and PCV, respectively, and were randomly divided into two groups. Group I was PRVC. Pressure-regulated volume-controlled ventilation was used in children. Group II was PCV. , Pressure-controlled ventilation was used to observe the peak inspiratory pressure (PIP) and hemodynamic parameters of the two modes of mechanical ventilation. Results: Compared with PVC model, the peak inspiratory pressure (PIP) of PRVC model was significantly lower than that of PVC model before and after pneumoperitoneum. The differences between the two groups were statistically significant (P <0.05). There was no significant difference in hemodynamic parameters (P> 0.05). Conclusions: PRVC mode combines the advantages of constant pressure and constant volume mode, reducing the risk of barotrauma caused by high PIP and reducing the number of manual adjustments during operation. It can be safely applied to children with timely adjustment of airway pressure in children Respiratory control in patients undergoing laparoscopic surgery.