Title: Effects of pneumoperitoneum,Trendelenburg position and hypercapnia on hemodynamics in old patients undergoing gynecological laparoscopy
Abstract:Objecfive To study the effects of pneumoperitoneum,Trendelenburg position and hypercapnia on hemodynamies in old patients undergoing gynecological laparoscopy.Methods Forty patients over 60 years unde...Objecfive To study the effects of pneumoperitoneum,Trendelenburg position and hypercapnia on hemodynamies in old patients undergoing gynecological laparoscopy.Methods Forty patients over 60 years undergoing elective gynecological laparoscopy were studied under general anesthesia,ASAⅠ-Ⅱ.All patients were mechanically ventilated(Tidal volume,10-12 mL/kg;FiO_21.0;I:E1:1.5;RR10~12 bpm),and P_EtCO_2,was maintained between 30-35 mm Hg.The intra-abdominal pressure was kept 1.6~2 kPa during operation.The data of hemodynamics and blood gas were recorded at time point of 15 min after anesthesia,15 min after Trendelenburg position,15 min after CO_2 pneumoperitoneum,15 min after pneumoperitoneum with Trendelenburg position,15 min and 30 min after hyperventilation(P_EtCO_2 30~35 mmHg).And P_a-EtCO_2 gradient was calculated.Results MAP,HR and PaCO_2 of pneumoperitoneum and Trendelenburg position were higher than those of 15 min after anesthesia.MAP,HR and PaCO_2 of hyperventilation were lower than those of pneumoperitoneum and were not diferent from those of 15 min after anesthesia.PH,P_a-EtCO_2 of pneumoperitoneum and Trendelenburg position were lower than those of 15 min after anesthesia.PH,Pa-etco 2 of hyperventilation were higher than those of pneumoperitoneum and were not diferent from those of after anesthesia.Conclusion Pneumoperitoneum,Trendelenburg position and hypercapnia affect hemodynamies in old patients undergoing gynecological laparoscopy.But appropriate hyperventilation can reduce the effects.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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