摘要
【目的】观察老年冠心病患者在腹腔镜胆囊切除术(TVLC)中CO2气腹对心率变异性的影响以及术前经右侧星状神经节阻滞对CO2气腹的干预作用。【方法】选择2008年5月至2008年12月择期在全麻下行TVLC的老年冠心病患者60例。随机分为两组,对照组和右侧星状神经节阻滞组(R-SGB组)各30例。分别于麻醉后SGB前(T0)、SGB后(T1)、气腹后10min(T2)、20min(T3)和30min(T4)记录HR、MAP并分析患者的心率变异性(heart rate variability,HRV)。HRV通过功率谱分析:低频率(LF),高频率(HF),LF/HF比率,总能量(TP)。【结果】CO2气腹后老年冠心病患者LF、LF/HF、TP均升高(P〈0.05)。R-SGB组气腹后各时点LF、LF/HF、TP升高低于对照组(P〈0.05)。两组HF未见明显改变(P〉0.05)。【结论】CO2气腹使老年冠心病患者交感神经活性显著升高,右侧星状神经节阻滞可减轻CO2气腹时的心血管反应,维持CO2气腹时的交感/迷走神经张力的均衡。
[Objective]To investigate the effect of pneumoperitoneum during laparoseopie choleeysteetomy (TVLC) on heart rate variability in the elderly patients with coronary heart disease, and the ifitervention of right stellate ganglion block (R-SBG) on it. [Methods] Sixty elderly patients with coronary heart disease from May to December in 2008 scheduled for elective pneumoperitoneum operation were selected anti.classified to two groups randomly : control group (Group Ⅰ , n = 30) and R-SGB group (Group Ⅱ , n = 30). Heart rate variability (HRV) was assessed after anesthesia ( before SGB), after SGB, 10, 20, and 30 minutes after pneumoperitoneum by using heart rate power spectrum analysis (HRPSA). [Results]As compared with pre-pneumo- peritoneum, low frequency (LF), low frequency/high frequency (LF/HF) and total spectral power (TP) were significantly higher after pneumoperitoneum( P 〈0.05). LF and LF/HF in the Group Ⅱ at all time points after pneumoperitoneum were significantly lower than in those in the Group Ⅰ ( P 〈0.05). There was no obvious difference in HF between the two groups( P〉0.05). [Conclusion] CO2 pneumoperitoneum can increase sympathetic nervous activity significantly. R-SGB can maintain the autonomic nervous system.
出处
《医学临床研究》
CAS
2009年第7期1192-1194,共3页
Journal of Clinical Research
关键词
冠状动脉疾病
心率
星状神经节
二氧化碳
气腹
人工
coronary disease
heart' rate
stellate ganglion
carbon dioxide
pneumoperitoneum, artificial