Effect of intraoperative body temperature protection on body temperature and hemodynamics in patients with hypertension
Objective To investigate the effect of intraoperative body temperature protection on body temperature and hemodynamics in patients with hypertension.Methods 60 who underwent hip replacement surgery and had a clear history of hypertension before surgery were included in this study.They were randomly divided into group D(intravenous fluid was heated to 37℃by liquid heater,and intraoperatively heated to 37℃by circulating water heating blanket)and group C(operation under conventional operating room setting)according to random numerical table,with 30 cases in each group.Comparison was made on body temperature and hemodynamics index[systolic blood pressure(SBP),diastolic blood pressure(DBP),mean arterial pressure(MAP)]at different time points[entering the operating room(T0),anesthesia induction(T1),intubation(T2),start of surgery(T3),0.5 h after surgery(T4),1 h after surgery(T5),end of surgery(T6),extubation(T7),and 5 min after extubation(T8)],as well as coefficient of variation of blood pressure at 24 h after surgery between the two groups.Results At T4,T5,T6 and T8,the body temperature in group D were(36.4±0.2),(36.3±0.2),(36.4±0.3)and(36.4±0.3)℃,respectively,which were higher than those of(36.2±0.2),(36.1±0.2),(36.1±0.1)and(36.2±0.2)℃in group C,and the difference was statistically significant(P<0.05).There was no statistically significant difference in body temperature at T0,T1,T2,T3 and T7 between the two groups(P>0.05).In group D,SBP,DBP and MAP at T3,T4,T5 and T6 were higher than those in group C;SBP,DBP and MAP at T7 were smaller than those in group C;DBP and MAP at T8 were lower than those in group C;the difference was statistically significant(P<0.05).There was no statistically significant difference in SBP,DBP,MAP at T0,T1 and T2 and SBP at T8 between the two groups(P>0.05).At 24 h after surgery,the coefficient of variation of SBP,DBP and MAP in group D were(4.7±0.4)%,(8.8±2.1)%and(6.1±0.9)%,respectively,which were lower than those of(10.1±2.9)%,(14.0±3.3)%and(11.8±3.2)%in group C,and the difference was statistically significant(P<0.05).Conclusion Intraoperative body temperature protection is helpful for the stability of body temperature and hemodynamics in patients with hypertension,and the fluctuation of blood pressure after surgery is less.
Body temperature protectionHypertensionBody temperatureHemodynamics
NETL
NSTL
万方数据
维普
