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        充氣式保溫毯預(yù)防老年腦腫瘤患者術(shù)中低體溫的臨床觀察

        2015-12-31 00:00:00呂婕
        醫(yī)學(xué)信息 2015年32期

        摘要:目的 探討充氣式保溫毯預(yù)防老年腦腫瘤患者開顱術(shù)中低體溫發(fā)生的效果。方法 老年幕上腦腫瘤患者64 例,隨機(jī)分為觀察組和對(duì)照組,各32 例。觀察組予(40±2)℃的充氣式保溫毯保溫,對(duì)照組采用常規(guī)保溫法,持續(xù)監(jiān)測(cè)記錄兩組患者麻醉開始至手術(shù)結(jié)束時(shí)肛溫的變化,并分析兩組患者術(shù)中低體溫發(fā)生情況。結(jié)果 兩組患者在麻醉開始時(shí)、手術(shù)開始時(shí)、及手術(shù)開始后1 h、2 h的體溫,對(duì)照組體溫有下降趨勢(shì),觀察組的體溫基本保持穩(wěn)定,但兩組體溫沒有顯著性差異(P>0.05) ,在手術(shù)開始的第3 h起至手術(shù)結(jié)束時(shí),對(duì)照組體溫明顯下降,觀察組的體溫較對(duì)照組體溫更接近正常,兩組體溫有顯著性差異(P<0.05)。觀察組2例體溫<36°C,低體溫發(fā)生率為6.25%;對(duì)照組8例體溫<36°C,低體溫發(fā)生率為25.0 %,兩組比較,χ2=4.267,P<0.05,有統(tǒng)計(jì)學(xué)意義,觀察組低體溫發(fā)生情況明顯較對(duì)照組低。結(jié)論 充氣式保溫毯能有效維持老年腦腫瘤患者術(shù)中體溫的穩(wěn)定,能顯著預(yù)防老年腦腫瘤患者術(shù)中低體溫的發(fā)生。

        關(guān)鍵詞:腦腫瘤;老年;低體溫;保溫毯

        Clinical Study on Air-forced Warming Lanket in Prevention of Intraoperative Hypothermia for Elderly Patients with Brain Tumors

        LV Jie

        (Department of Operating Room, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine,Central South University, Changsha 410013,Hunan,China)

        Abstract:Objective To observe the clinical efficacy of the air-forced warming blanket in preventing hypothermia of elderly patients with brain tumors during operation. Methods 64 cases of elderly patients with brain tumors were randomly and equally divided into two groups. Patiens in the control group were provided with 2.5kg ordinary quilts to keep warm according to the routine care, while the other 32 patients in the observation group were provided with air-forced warming blanket with the heating temperature of (40±2)℃.The occurrence of rectal temperature of the patients in both groups from the beginning to the end of the operation was observed and recorded. Results The rectal temperature of observation group were higher in the first two hours,but there were no statistical difference between the two groups (P>0.05) .However,from the third hours of operation,The rectal temperature of observation group were higher with statistical difference (P<0.05) .Tthe incidence rate of hypothermia of observation group were lower than the that of control group at the same periods, which were of statistical difference (χ2=4.267,P<0.05) . Conclusion Air-forced warming blanket can effectively keep the stability of body temperature during operation in elderly patients with brain tumors ,and reduce the incidence of hypothermia.

        Key words:Hypothermia;Air-forced Warming lanket;Elderly patients;Brain tumors

        外科手術(shù)患者因多種因素如麻醉狀態(tài)下骨骼肌松弛、產(chǎn)熱少、手術(shù)部位和肢體的暴露散熱、室溫低等,易導(dǎo)致患者圍手術(shù)期低體溫,大約50%~70%的手術(shù)患者術(shù)中會(huì)出現(xiàn)低體溫[1]。而老年患者(年齡>60歲)因體溫調(diào)節(jié)功能下降,更易出現(xiàn)低體溫。全身麻醉術(shù)后低體溫在某些情況下對(duì)機(jī)體可能是有益的,如低體溫能降低機(jī)體的氧耗,保護(hù)腦細(xì)胞,但低體溫可使心臟事件的發(fā)生率增加、肝臟代謝率降低、凝血功能下降、免疫功能降低及術(shù)后傷口感染率增加等[2],腦腫瘤手術(shù)時(shí)間相對(duì)較長(zhǎng),在手術(shù)過程中保持患者體溫恒定具有重要意義。充氣式保溫毯預(yù)防老年腦腫瘤患者開顱術(shù)中低體溫的研究目前國(guó)內(nèi)尚未見相關(guān)報(bào)道。本研究通過觀察充氣式保溫毯在老年腦腫瘤患者開顱術(shù)中的應(yīng)用情況,明確其在預(yù)防術(shù)中低體溫的效果。

        1資料與方法

        1.1一般資料 2012年11月~2014年12月在我院神經(jīng)外科行開顱手術(shù)的老年幕上腦腫瘤患者64例,其中男24例,女30例,年齡61~78歲,平均( 65.1±3.3)歲。將患者隨機(jī)分為觀察組和對(duì)照組,各31例。兩組患者性別、年齡、體重、輸液量及術(shù)野沖洗量比較,無明顯統(tǒng)計(jì)學(xué)差異。

        1.2方法 術(shù)中皆采用氣管內(nèi)全身麻醉。手術(shù)室溫度為22℃~24℃,術(shù)中常規(guī)監(jiān)測(cè)心率、血壓、血氧飽和度、體溫。沖洗液用水溫浴箱加溫至37℃,輸液使用電子液體加溫儀輸液。觀察組給予充氣式保溫毯保暖,持續(xù)吹暖風(fēng),加熱溫度為(40±2)℃,對(duì)照組按常規(guī)護(hù)理,給予2.5 Kg普通棉被保暖。

        1.3觀察指標(biāo)與結(jié)果判定 分別記錄兩組患者麻醉開始時(shí)、手術(shù)開始時(shí)、術(shù)中1 h、2 h、3 h、4 h、手術(shù)結(jié)束時(shí)肛溫、低體溫發(fā)生情況。當(dāng)體溫<36℃時(shí)認(rèn)為發(fā)生低體溫。

        1.4統(tǒng)計(jì)學(xué)分析 采用SPSS 17.0統(tǒng)計(jì)軟件包進(jìn)行統(tǒng)計(jì)分析。實(shí)驗(yàn)數(shù)據(jù)采用均數(shù)±標(biāo)準(zhǔn)差(x±s)表示,計(jì)量資料的比較采用t檢驗(yàn),計(jì)量資料采用χ2檢驗(yàn),P<0.05定為有統(tǒng)計(jì)學(xué)意義。

        2結(jié)果

        2.1兩組患者術(shù)中體溫變化比較 兩組患者在麻醉開始時(shí)、手術(shù)開始時(shí)、及手術(shù)開始后1 h、2 h的體溫,對(duì)照組體溫有下降趨勢(shì),觀察組的體溫基本保持穩(wěn)定,但兩組體溫沒有顯著性差異(P>0.05),在手術(shù)開始的第3 h起至手術(shù)結(jié)束時(shí),對(duì)照組體溫明顯下降,觀察組的體溫較對(duì)照組體溫更接近正常,兩組體溫有顯著性差異(P<0.05),見表1。

        2.3兩組手術(shù)結(jié)束時(shí)低體溫發(fā)生情況 觀察組2例體溫<36°C,低體溫發(fā)生率為6.25%;對(duì)照組8例體溫<36°C,低體溫發(fā)生率為25.0%,兩組比較,χ2=4.267,P<0.05,有統(tǒng)計(jì)學(xué)意義,觀察組低體溫發(fā)生情況明顯較對(duì)照組低。

        3討論

        開顱手術(shù)中,全身麻醉可通過抑制中樞體溫調(diào)節(jié)中心降低機(jī)體的體溫調(diào)節(jié)能力,麻醉藥物使血管收縮功能受到不同程度的抑制,熱量喪失增加,還可阻滯運(yùn)動(dòng)神經(jīng)減少肌肉張力及運(yùn)動(dòng),使寒戰(zhàn)、產(chǎn)熱減少,此外,溫度感覺傳入阻滯使中樞體溫調(diào)節(jié)反饋延遲,從而導(dǎo)致了術(shù)中低體溫的出現(xiàn)。同等條件下,低溫持續(xù)時(shí)間超過2 h的患者病死率達(dá)24%,而體溫正常者僅為4%。持續(xù)4 h以上的低溫,病死率可達(dá)40%[3-4]。在老年腦腫瘤患者開顱術(shù)中,因患者年齡較高,手術(shù)時(shí)間較長(zhǎng),低體溫發(fā)生情況更為常見,如何預(yù)防老年腦腫瘤患者開顱術(shù)中低體溫的發(fā)生,為此類手術(shù)護(hù)理過程中碰到的常見問題。

        本研究通過對(duì)是否使用充氣式保溫毯來觀察兩組老年腦腫瘤開顱手術(shù)患者的保溫效果。結(jié)果顯示,在手術(shù)開始的3 h內(nèi),觀察組的體溫基本保持穩(wěn)定,對(duì)照組體溫有下降趨勢(shì),但兩組體溫沒有顯著性差異(P>0.05),在手術(shù)開始的第4 h起,觀察組的體溫較對(duì)照組體溫更接近正常,兩組體溫有顯著性差異(P<0.05),在整個(gè)手術(shù)過程中觀察組發(fā)生低體溫2例,對(duì)照組低體溫發(fā)生8例,低體溫發(fā)生率在觀察組明顯降低,兩組低體溫發(fā)生率有顯著性差異(P<0.05),顯示充氣式保溫毯在手術(shù)過程中起到比較有效地保溫作用。本組研究挑選的均為幕上腦腫瘤老年患者,從而在手術(shù)部位、手術(shù)時(shí)間及體溫調(diào)節(jié)能力上無較大差異。本組病例存在較多致低體溫發(fā)生的影響因素,如患者均為老年患者,其體溫調(diào)節(jié)能力有所下降,同時(shí)全身麻醉造成的熱量散失對(duì)體溫下降也起了很大的作用,此外,術(shù)中使用液體沖洗創(chuàng)面,帶走較多熱量,加速了體溫下降[5]。本研究中保溫組有2例患者在應(yīng)用保溫毯情況下仍出現(xiàn)寒戰(zhàn),提示對(duì)老年患者進(jìn)行手術(shù)時(shí),除應(yīng)用保溫毯進(jìn)行保溫外,還應(yīng)注意采取提高輸入液體溫度和沖洗液溫度等綜合措施解決保溫問題[6-7]。

        為避免術(shù)中低體溫的發(fā)生,手術(shù)室護(hù)士應(yīng)該做好手術(shù)患者體溫的監(jiān)測(cè)和保溫護(hù)理干預(yù),術(shù)中使用充氣式保溫毯是保持患者體溫穩(wěn)定的有效方法,此外,也應(yīng)該充分考慮到手術(shù)患者出現(xiàn)低體溫的各種原因,從而提出各種應(yīng)對(duì)措施,盡可能減少低體溫的發(fā)生,降低低體溫對(duì)手術(shù)患者的危害。

        參考文獻(xiàn):

        [1]Sessler D I. Complications and treatment of mild hypothermia[J]. Anesth,2001, 95 (2) : 531.

        [2]Pannen B H. Etiology and sequelae of perioperative accidental hypothermia[J].Anaesthesiologie Reanimation, 2002, 27 (1) : 4 - 8.

        [3]Yamasaki H, Tanaka K, Funai Y, et al.The impact of intraoperative hypothermia on early postoperative adverse events after radical esophagectomy for cancer: a retrospective cohort study[J].J Cardiothorac Vasc Anesth,2014, 28 (4):. 955-959.

        [4]Jeyadoss J1, Thiruvenkatarajan V, Watts RW,et al.Intraoperative hypothermia is associated with an increased intensive care unit length-of-stay in patients undergoing elective open abdominal aortic aneurysm surgery: a retrospective cohort study[J].Anaesth Intensive Care,2013,41(6):759-764.

        [5]De Mattia AL, Barbosa MH, de Freitas Filho JP, et al.Warmed intravenous infusion for controlling intraoperative hypothermia[J].Rev Lat Am Enfermagem,2013,21(3):803-810.

        [6]Horosz B, Malec-Milewska M.Methods to prevent intraoperative hypothermia[J].Anaesthesiol Intensive Ther,2014, 46 (2): 96-100.

        [7]陳曉峰,陳美英,繆榮華.保溫毯預(yù)防老年患者圍手術(shù)期低溫的效果觀察[J].護(hù)理與康復(fù),2010,9(2):151-152.

        編輯/肖慧

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