丙泊酚与七氟醚对患儿围术期体温的影响

目的比较丙泊酚与七氟醚对骨科围术期小儿体温的影响。方法择期行全麻下先天性髋关节脱位切开复位内固定术的患儿68例,男4例,女64例,随机均分为两组:丙泊酚组(P组)和七氟醚组(S组)。P组麻醉诱导及维持使用丙泊酚,S组麻醉诱导及维持使用七氟醚,观察并记录麻醉诱导前5min(T0)、麻醉诱导后5min(T1)、15min(T2)、30min(T3)、45min(T4)、60min(T5)、75min(T6)、90min(T7)、105min(T8)、120min(T9)体温;观察手术时间、麻醉时间、术中输液量和围术期低体温及寒颤发生情况。结果与T0时比较,T1~T8时两组体温明显降低,T7、T8时P组体温明显高于S组(P0.05);S组患儿术中低体温发生率为8例(23.5%),明显高于P组的1例(2.9%)(P0.05)。两组手术时间、麻醉时间、术中输液量差异无统计学意义,术后患儿均无寒颤发生。结论行先天性髋关节脱位切开复位内固定术的患儿,术中体温呈先下降后上升趋势。与丙泊酚比较,在麻醉诱导后90min内,七氟醚更易导致小儿围术期低体温的发生。

Comparison of the effect of propofol and sevoflurane on thermoregulation in children undergoing ortho-paedic surgery

Objective To compare the impact of propofol and sevoflurane on thermoregulation in children undergoing orheopaedic surgery.Methods Sixty-eight children scheduled to undergo ortho-paedic surgery were randomly allocated to receive propofol (group P)and sevoflurane(group S)anes-thesia,34 cases in each group.Tympanic temperature was recorded 5 minutes before (T0 )and 5 min (T1 ),1 5 min (T2 ),30 min (T3 ),45 min (T4 ),60 min (T5 ),75 min (T6 ),90 min (T7 ),105 min (T8 )and 120 min (T9 )after anesthesia.Total fluid intake,duration of surgery,duration of anesthe-sia,the incidence of hypothermia,and the incidence of shivering were also recorded.Results Com-pared with T0 ,in both groups body temperature declined at T1-T8 .There was no difference between the two groups in total fluid intake,duration of surgery,duration of anesthesia and the incidence of shivering.Compared with group P,children in group S had a higher incidence of hypothermia(8 vs 1). Children in group S had lower temperature,which had statistical significance at T7 and T8 (P <0.05). Conclusion The core temperature of children undergoing orthopaedic surgery showed a trend of in-crease after the first fall in the surgery.Compared with propofol,sevoflurane anesthesia is more likely to lead to the incidence of hypothermia in children undergoing orthopaedic surgery in 90 min after in-duction of anesthesia.