Effects Of Improved-Forced-Air-Warming Blanket To The Patients Undergoing Radical Gastrectomy

Background and ObjectiveHypothermia can cause severe complications,including longer recovery and more costs.Therefore,discovering an ideal method of intraoperative warming intervention for the patients' safety has profound clinical significance. Forced-air-warming system is an effective measure of warming intervention,but this imported equipment is too expensive to be widely utilized,and it can't be repeated application.Each blanket costs several hundreds of yuan,and have no substitutes in domestic.According to various modus operandi,the import-forced-air-warming blanket can be divided into upper-body-blanket,lower-body-blanket,and full-body-blanket.Each surgery need specified blanket,which increased costs.Additionally,the upper-body-blanket,lower-body-blanket can not protect body fully during induction of anesthesia and anesthetic recovery period,so patients have to be covered with quilts.These factors restrict the widely application of forced-air-warming system in China.In this research,for making it suitable for various types surgery, firstly we improved and redesigned import-forced-air-warming blanket.Secondly,we investigate effects of three warming interventions(improved-forced-air-warming blanket,import-forced-air-warming blanket and quilt)on patients during radical gastrectomy,hoping provide effective and convenient experimental basis to hypothermia protection.MethodsNinety radical gastrectomy patients were divided into three groups randomly: thirty patients in the group protected with impoved-forced-air-warming blanket,thirty patients in the group protected with import-forced-air-warming blanket,and the other thirty with quilt.Tympanic temperatures,axillary temperature, heart rate(HR),mean arterial pressure(MAP),and mean arterial pressure were respectively recorded at the time of entering operating room,post-intubation,incision and every 30 minutes after that,and skin closed.Blood loss,time of postoperative extubation,postoperative shivering situation were recorded simultaneously.Data were analyzed with SPSS 16.0,including descriptive statistics.chi-square text,T test,analysis of variance of repeated measurement,etc.Results1 Effect of three warming interventionsThe group with impoved-forced-air-warming blanket has one case of hypothermic patient, the group with import-forced-air-warming blanket has two cases of hypothermic patients,and the quilt group has twenty-two cases.Patients'tympanic and axillary temperatures in three groups were no significant difference at the time point of entering the operating room and anesthesia induction (P>0.05).Patients' tympanic temperatures in three groups were no significant difference among groups at the beginning of the operation (P>0.05).Patients'tympanic temperature and axillary temperature in the quilt group were significantly lower than that of the other two groups at each time point after the surgery start and the surgery end (P< 0.05).There was no significant difference at each time point about the tympanic and axillary temperature between the two forced-air-warming blanket groups (P>0.05)2 Effect of three warming interventions to recirculating systemThree groups show no significant difference between patients'heart rate(HR) and mean arterial pressure(MAP) at each time point (P>0.05)3 Effect of three warming interventions to blood loss The blood loss of impoved-forced-air-warming blanket group and import-forced-air-warming blanket group was no significant difference (P>0.05). Compared with the other two,the blood loss of quilt group was significantly increased (P< 0.05)4 Effect of three warming interventions to time of postoperative extubationThe time of postoperative extubation in impoved-forced-air-warming blanket group and import-forced-air-warming blanket group was no significant difference (P >0.05).Postoperative extubation of the quilt group was significantly longer than that of impoved-forced-air-warming blanket group and import-forced-air-warming blanket group (P<0.05)5 Effect of three warming interventions to postoperative shiveringThree groups have eighteen cases with postoperative shivering totally:the group of impoved-forced-air-warming blanket has four cases of postoperative shivering patient,the group of import-forced-air-warming blanket has three cases,and the quilt group has eleven cases.The incidence of postoperative shivering in impoved-forced-air-warming blanket group and import-forced-air-warming blanket group was no significant difference (P>0.05).The incidence of postoperative shivering of quilt group was significantly highly than that of impoved-forced-air-warming blanket group and import-forced-air-warming blanket group (P<0.05)ConclusionIn radical gastrectomy,the clinical effect of the impoved-forced-air-warming blanket and the import-forced-air-warming blanket are similar,and the former also have low cost,which contribute to the general application of forced-air-warming system in China.