腹腔镜手术中不同气腹压力对老年患者血流动力学及血气的影响

目的观察不同气腹压力对老年患者腹腔镜中血流动力学和动脉血气的影响。方法 65岁以上择期行腹腔镜直肠癌根治术的老年患者30例,随机均分为两组,术中分别采用气腹压10 mm Hg(L组)和14 mm Hg(H组)。分别于气腹前15 min(T0)、平卧位气腹后15 min(T1)、气腹并体位改变后15 min(T2)、30 min(T3)、60 min(T4)、120 min(T5)、气腹结束并平卧位后15 min(T6)记录MAP、CVP、肺动脉楔压(PCWP)、肺平均动脉压(MPAP)、CO,计算CI、体循环阻力(SVR)、肺循环阻力(PVR),抽取动脉血测定pH、PaCO2、PaO2。结果与T0时比较,两组患者在T1~T5时MAP、CVP、PCWP、MPAP、PaCO2显著升高(P<0.01),pH明显下降(P<0.05);T1时CI和PVR明显下降(P<0.01),SVR明显升高(P<0.01);T2时CI和PVR明显升高(P<0.01),SVR明显下降(P<0.01)。T2~T5时,H组MAP、CVP、PCWP、MPAP显著高于、HR显著快于L组(P<0.05或P<0.01)。结论腹腔镜手术中气腹压14...

Effects of different pneumoperitoneal pressures on hemodynamics and arterial blood gas in geriatric patients during laparoscopic surgery

Objective To study the effects of different pneumoperitoneal pressures on hemodynamics and arterial blood gas in geriatric patients during laparoscopic surgery.Methods Thirty geriatric patients(aged > 65 years) scheduled for elective laparoscopic radical resection of rectal cancer were randomly divided into two groups: group L(n= 15,the intra-abdominal pressure was kept at 10 mm Hg) and group H(n=15,the intra-abdominal pressure was kept at 14 mm Hg).After tracheal intubation,MAP,CVP,PCWP,MPAP and CO was rec...