唐玉茹++李會(huì)++帥訓(xùn)軍+候念果++孫明潔++徐堂文++滕娜++艾登斌
[摘要] 目的 探討保護(hù)性肺通氣對(duì)老年肺葉切除術(shù)患者肺功能及術(shù)后并發(fā)癥的影響。 方法 選取青島市市立醫(yī)院2014年1~12月?lián)衿谛蟹稳~切除術(shù)的老年肺癌患者60例(ASA Ⅰ~Ⅱ級(jí),年齡62~72歲,體重50~80 kg),采用隨機(jī)數(shù)表法將患者分為傳統(tǒng)肺通氣(CV)組和保護(hù)性肺通氣(PV)組,每組各30例。CV組潮氣量為10 mL/kg,PV組壓力控制通氣(使潮氣量達(dá)到6 mL/kg,呼氣末正壓6 cmH2O),兩組的吸入氧濃度為100%,吸呼比1∶2,維持動(dòng)脈血二氧化碳分壓(PaCO2)為35~45 mmHg。在雙肺通氣15 min(T1)、單肺通氣15 min(T2)、單肺通氣60 min(T3)、恢復(fù)雙肺通氣15 min(T4)時(shí)點(diǎn)記錄兩組的氣道峰壓(PIP)、平臺(tái)壓(PPleatu)。記錄兩組術(shù)后拔除氣管插管時(shí)間,并在T1、T2、T3、T4及術(shù)后2 h(POD0)、術(shù)后1 d晨(POD1)、術(shù)后2 d晨(POD2)抽取橈動(dòng)脈血行血?dú)夥治鲇涗泝山M的PaCO2和PaO2值,于POD2行胸部X線檢查。 結(jié)果 兩組患者的一般情況(性別、年齡、體重、吸煙史、術(shù)前肺功能)及手術(shù)時(shí)間、麻醉時(shí)間、手術(shù)徑路、術(shù)后拔除氣管插管時(shí)間差異無統(tǒng)計(jì)學(xué)意義(P > 0.05)。T2、T3時(shí)點(diǎn)PV組PIP及PPleatu明顯低于CV組(P < 0.05),PaO2明顯低于CV組(P < 0.05),PaCO2明顯高于CV組(P < 0.05)。POD0、POD1、POD2時(shí)點(diǎn)PV組PaO2明顯高于CV組(P < 0.05)。術(shù)后X線胸片顯示PV組肺不張、肺部炎性病變發(fā)生率明顯低于CV組(P < 0.05)。 結(jié)論 肺葉切除術(shù)中保護(hù)性肺通氣能明顯降低術(shù)中機(jī)械通氣壓力,改善術(shù)后肺氧合功能,減少了術(shù)后肺不張及肺部炎性病變的發(fā)生率。
[關(guān)鍵詞] 保護(hù)性肺通氣;肺葉切除術(shù);單肺通氣;肺功能
[中圖分類號(hào)] R734.2 [文獻(xiàn)標(biāo)識(shí)碼] A [文章編號(hào)] 1673-7210(2017)07(b)-0120-05
Effect of lung protective ventilation on perioperative pulmonary function in elderly patients received pulmonary lobectomy of lung cancer
TANG Yuru1,2 LI Hui2 SHUAI Xunjun2 HOU Nianguo2 SUN Mingjie2 XU Tangwen2 TENG Na2 AI Dengbin1,2
1.Graduate School, Taishan Medical University, Shandong Province, Tai′an 271016, China; 2.Department of Anesthesiology, Municipal Hospital of Qingdao Research Center of Clinical Anesthesiology of Qingdao, Shandong Province, Qingdao 266011, China
[Abstract] Objective To evaluate the effect of lung protective ventilation strategies on the pulmonary function and postoperative pulmonary complications in elderly patients with pulmonary lobectomy. Methods A total of 60 elderly patients with lung cancer of ASA physical status Ⅰ-Ⅱ, aged 62-72 year, weighing 50-80 kg, who underwent elective pulmonary lobectomy surgery in Municipal Hospital of Qingdao from January to December 2014 were seleced. All patients were divided into two groups (n=30): protective ventilation group (group PV) and conventional ventilation group (group CV) according to random number table. In group CV, patients received volume-controlled ventilation and the VT was 10 mL/kg. In group PV, patients received pressure-controlled ventilation, the VT was 6 mL/kg, and the positive end-expiratory pressure (PEEP) was 6 cmH2O. The oxygen concentration was 100%, the inhalation and exhalation rate was 1∶2, and the partial pressure of end-tidal CO2 was 35-45 mmHg. The peak inspiratory pressure (PIP) and the plateau pressure (PPleatu) were compared and analyzed at the time of double lung ventilation (TLV) 15 min (T1), one-lung ventilation (OLV) 15 min (T2), OLV 60 min (T3), and the restore TLV 15 min (T4). The time from stopping anesthetic to extubating tracheal tube was also recorded and compared. Blood samples were collected from radial artery for blood gas analysis, the PaCO2 and PaO2 were compared and analyzed at the time of T1, T2, T3, T4, 2 h after pulmonary lobectomy surgery (POD0), the morning of 1 days after surgery (POD1) and the morning of 2 days after surgery (POD2). Chest X-ray in two groups was also compared and analyzed in POD2. Results There were no significant differences between the two groups in sex, age, weight, smoking history, preoperative pulmonary function, anesthesia time, operation time, surgical approach and duration of postoperative tracheal intubation (P > 0.05). Compared with group CV, PIP, PPleatu and PaO2 were significantly decreased, PaCO2 was increased at T2, T3 in group PV, with statistically significant differences (P < 0.05). Compared with group CV, PaO2 levles were significantly increased in group PV at POD0, POD1, POD2, with statistically significant differences (P < 0.05). Compared with group CV, the incidence of postoperative pulmonary atelectasis, pulmonary infiltrates were significantly decreased in group PV (P < 0.05). Conclusion The protective lung ventilation strategy can significantly reduce intraoperative mechanical ventilation pressure, improve postoperative pulmonary oxygenation function, reduce incidence rate of postoperative atelectasis and lung tissue infiltrates of elderly patients underwent pulmonary lobectomy.
[Key words] Lung protective ventilation; Pulmonary lobectomy; One lung ventilation; Pulmonary function
隨著社會(huì)老齡化和醫(yī)療技術(shù)的發(fā)展,臨床麻醉工作中將面臨老年肺癌切除術(shù)患者增多的現(xiàn)狀。由于老年患者在術(shù)后肺不張和低氧血癥發(fā)生率明顯高于普通患者[1-2],使其圍術(shù)期肺部并發(fā)癥成為臨床麻醉管理工作過程中普遍關(guān)注的問題[3]。保護(hù)性肺通氣策略是近年來提出的機(jī)械通氣中采用的新方法[4]。本研究將保護(hù)性肺通氣用于老年患者肺葉切除術(shù)的單肺通氣(one-lung ventilation,OLV)中,就保護(hù)性肺通氣策略對(duì)老年肺癌患者術(shù)中及術(shù)后氧合功能及術(shù)后并發(fā)癥的影響進(jìn)行了探討。
1 資料與方法
1.1 一般資料
選取2014年1~12月青島市市立醫(yī)院(以下簡(jiǎn)稱“我院”)收治的擇期行肺葉切除術(shù)的老年肺癌患者60例。肺癌診斷標(biāo)準(zhǔn)參照周彩存[5]報(bào)道方法。納入標(biāo)準(zhǔn):年齡62~72歲,性別不限,體重50~70 kg,美國(guó)麻醉師協(xié)會(huì)(ASA)評(píng)分為Ⅰ~Ⅱ級(jí)。排除標(biāo)準(zhǔn):有嚴(yán)重心、肝、腎功能異常者;糖尿病,溶血性貧血,出血、凝血機(jī)制異常者;青霉素、磺胺藥、其他藥物過敏史及吃海帶等食物過敏,或反復(fù)發(fā)作的急性喉頭水腫、蕁麻疹陽性者。采用隨機(jī)數(shù)字表法,將患者分為傳統(tǒng)肺通氣(CV)組和保護(hù)性肺通氣(PV)組,每組各30例。本研究已獲得我院醫(yī)學(xué)倫理委員會(huì)批準(zhǔn)并與患者簽署知情同意書。
1.2 方法
常規(guī)術(shù)前準(zhǔn)備,入室后建立上肢靜脈通路,面罩吸氧4~6 L/min,常規(guī)監(jiān)測(cè)心電圖(ECG)、血氧飽和度(SpO2)、無創(chuàng)血壓、心率(HR)、呼氣末二氧化碳分壓(PETCO2)和體溫,在局麻下行左側(cè)橈動(dòng)脈穿刺置管術(shù),用于監(jiān)測(cè)平均動(dòng)脈壓(MAP)。麻醉誘導(dǎo):依次靜脈注射丙泊酚1.5~2 mg/kg,芬太尼2~4 μg/kg、順式阿曲庫(kù)銨0.15 mg/kg,插入左側(cè)雙腔支氣管導(dǎo)管,用纖維支氣管鏡輔助氣管內(nèi)導(dǎo)管定位,進(jìn)行機(jī)械通氣。麻醉維持:吸入純氧,新鮮氣體流速2~4 L/min,呼吸頻率為12 次/min。其中,CV組采用傳統(tǒng)通氣模式,潮氣量10 mL/kg;PV組采用保護(hù)性通氣策略壓力控制通氣,使潮氣量達(dá)到6 mL/kg,呼氣末正壓6 cmH2O(1 cmH2O=0.098 kPa),其余參數(shù)相同。吸入氧濃度100%,吸呼比1∶2,維持動(dòng)脈血二氧化碳分壓(PaCO2)于35~45 mmHg(1 mmHg=0.133 kPa)之間,維持SpO2在95%以上。兩組均吸入1.5%~2%七氟醚,并維持于0.7 MAC,靜脈輸注瑞芬太尼0.08~0.15 μg/(kg·min)、丙泊酚3~5 mg/(kg·h),間斷按需靜脈注射追加順式阿曲庫(kù)銨0.03 mg/kg維持肌松。術(shù)中維持HR 60~100次/min,MAP波動(dòng)范圍不超過基礎(chǔ)值的20%。
1.3 監(jiān)測(cè)指標(biāo)
記錄雙肺通氣15 min(T1)、單肺通氣15 min(T2)、單肺通氣60 min(T3)、恢復(fù)雙肺通氣15 min(T4)氣道峰壓(PIP)、平臺(tái)壓(PPleatu),并抽取橈動(dòng)脈血行血?dú)夥治?。記錄手術(shù)時(shí)間、麻醉時(shí)間、手術(shù)徑路、術(shù)后拔除氣管插管時(shí)間。術(shù)后2 h(POD0)、術(shù)后1 d晨(POD1)、術(shù)后2 d晨(POD2)抽取橈動(dòng)脈血行血?dú)夥治?。于POD2行胸部X線正位片檢查,肺部并發(fā)癥的判斷標(biāo)準(zhǔn)參照王邵華等[6]報(bào)道方法。
1.4 統(tǒng)計(jì)學(xué)方法
采用SPSS 17.0統(tǒng)計(jì)學(xué)軟件進(jìn)行數(shù)據(jù)分析,計(jì)量資料數(shù)據(jù)用均數(shù)±標(biāo)準(zhǔn)差(x±s)表示,兩組間比較采用t檢驗(yàn);計(jì)數(shù)資料用率表示,組間比較采用χ2檢驗(yàn),以P < 0.05為差異有統(tǒng)計(jì)學(xué)意義。
2 結(jié)果
2.1 兩組患者一般資料比較
兩組患者性別構(gòu)成、年齡、吸煙史、體重、術(shù)前肺功能指標(biāo)等差異均無統(tǒng)計(jì)學(xué)意義(均P > 0.05)。見表1。
2.2 兩組患者的手術(shù)情況比較
兩組患者麻醉時(shí)間、手術(shù)時(shí)間、手術(shù)徑路、術(shù)后拔出氣管插管時(shí)間差異均無統(tǒng)計(jì)學(xué)意義(均P > 0.05)。見表2。
2.3 兩組患者術(shù)中各時(shí)點(diǎn)PIP、PPleatu值比較
PV組T2、T3時(shí)點(diǎn)PIP及PPleatu均明顯低于CV組,差異有統(tǒng)計(jì)學(xué)意義(P < 0.05)。見表3。
2.4 兩組患者術(shù)中各時(shí)點(diǎn)PaO2及PaCO2值比較
PV組T2、T3各時(shí)點(diǎn)PaO2均明顯低于CV組,差異有統(tǒng)計(jì)學(xué)意義(P < 0.05);T2、T3各時(shí)點(diǎn)PV組PaCO2均明顯高于CV組,差異有統(tǒng)計(jì)學(xué)意義(P < 0.05)。見表4。
2.5 兩組患者術(shù)后POD0、POD1、POD2時(shí)點(diǎn)PaO2值比較
PV組患者POD0、POD1、POD2時(shí)點(diǎn)PaO2均明顯高于CV組,差異有統(tǒng)計(jì)學(xué)意義(P < 0.05)。見表5。
2.6 兩組患者POD2時(shí)點(diǎn)胸部X線檢查結(jié)果比較
兩組患者中,術(shù)后X線胸片顯示PV組肺不張、肺部炎性病變發(fā)生率明顯少于CV組,差異有統(tǒng)計(jì)學(xué)意義(P < 0.05)。見表6。
3 討論
本研究所選擇肺葉切除術(shù)患者麻醉均由同一名麻醉醫(yī)生完成,手術(shù)均由同一組外科醫(yī)師完成,均衡了麻醉深度和手術(shù)創(chuàng)傷對(duì)術(shù)后肺部并發(fā)癥的影響。因此,兩組患者數(shù)據(jù)的變化能夠反映應(yīng)兩種通氣方式對(duì)氣道壓力、氧合及對(duì)術(shù)后肺部并發(fā)癥的影響。
保護(hù)性肺通氣策略最初是在急性肺損傷(ALI)/急性呼吸窘迫綜合征(ARDS)和其他原因?qū)е潞粑ソ叩闹委熤刑岢龅臋C(jī)械通氣策略,其目的是在進(jìn)行機(jī)械通氣支持的同時(shí),保護(hù)肺組織免受呼吸機(jī)相關(guān)肺損傷(VILI),其主要包括合適的呼吸頻率(10~14 次/min)、低潮氣量(TV 6~8 mL/kg)、必要時(shí)允許性高碳酸血癥、最佳的呼氣末正壓(PEEP)[7-9]。目前臨床上應(yīng)用最為廣泛的是小潮氣量及設(shè)定適當(dāng)?shù)腜EEP,可提高ALI/ARDS患者生存率[10-11]。本研究結(jié)果表明,與傳統(tǒng)機(jī)械通氣相比,保護(hù)性肺通氣策略(潮氣量6 mL/kg、呼氣末正壓6 cmH2O和壓力控制通氣模式)可降低PIP、PPleatu,改善術(shù)中、術(shù)后肺的氧合,減少術(shù)后肺不張、肺部炎性病變等肺部并發(fā)癥的發(fā)生。
傳統(tǒng)的機(jī)械通氣方式采取大潮氣量持續(xù)給氧方式,容易造成高氣道壓力[9,12]。已有研究證明,高氣道壓是造成肺損傷的一個(gè)關(guān)鍵因素[13]。在本研究中,PV組采取小潮氣量(6 mL/kg)、PEEP為6 cmH2O,CV組采用大潮氣量(10 mL/kg),結(jié)果發(fā)現(xiàn),PV組術(shù)中T2、T3時(shí)點(diǎn)PIP及PPleatu的測(cè)量結(jié)果均低于CV組,并普遍在30 cmH2O以下,術(shù)后PV組PaO2明顯高于CV組,顯示在肺葉切除術(shù)中采用保護(hù)性肺通氣策略能明顯降低氣道壓力,改善氧合。提示小潮氣量復(fù)合低水平PEEP可通過降低氣道壓及均衡肺泡間壓力來避免肺泡萎陷,降低剪切力傷害效應(yīng),產(chǎn)生肺保護(hù)作用。同樣,趙雙等[14]在一項(xiàng)包含了200個(gè)樣本的回顧性研究中,根據(jù)潮氣量的不同,分為大潮氣量組(VT=8~10 mL/kg)和小潮氣量組(VT=6~8 mL/kg)。結(jié)果同樣發(fā)現(xiàn),后者術(shù)中PIP及PPleatu低于前者,能夠很好地預(yù)防呼吸機(jī)相關(guān)性肺損傷的發(fā)生。
本研究結(jié)果顯示,術(shù)中各時(shí)點(diǎn)PV組的PaCO2較CV組明顯升高,同時(shí)兩組術(shù)中的PaCO2水平均控制在35~45 mmHg之間,說明適度的高碳酸血癥在肺通氣保護(hù)策略中是可以被接受的。在保護(hù)性肺通氣中,適度的高碳酸血癥利于氧的釋放,更利于組織攝取氧,保護(hù)重要臟器氧供[15-16]。因此,在保護(hù)性肺通氣策略中適度的CO2增高是有利的。有研究也顯示,允許性高碳酸血癥可減輕單肺通氣過程中及萎陷肺復(fù)張后肺臟彌散功能的損害,增加肺動(dòng)態(tài)順應(yīng)性,減輕肺部炎性反應(yīng),對(duì)肺臟具有一定程度的保護(hù)作用[17-20]。Nichol等[21]研究表明,在潮氣量和氣道壓力沒有改變的情況下,通過適量增加CO2吸入濃度即可在數(shù)分鐘內(nèi)表現(xiàn)出肺保護(hù)作用。
本研究中,在術(shù)后第2天對(duì)所有患者均進(jìn)行了胸部X線檢查,結(jié)果發(fā)現(xiàn),保護(hù)性肺通氣30例患者中術(shù)后出現(xiàn)肺不張及肺部炎性病變各1例,而傳統(tǒng)機(jī)械通氣患者術(shù)后出現(xiàn)肺不張及肺部炎性病變分別為6、8例,說明保護(hù)性肺通氣策略可以明顯減少術(shù)后并發(fā)癥的發(fā)生。此結(jié)果同Güldner等[22]觀點(diǎn)相似,證明了實(shí)施肺保護(hù)性通氣策略與高潮氣量、未給予PEEP的傳統(tǒng)機(jī)械通氣方式相比,術(shù)后并發(fā)癥顯著降低。
綜上所述,與傳統(tǒng)機(jī)械通氣方式相比,保護(hù)性肺通氣策略能明顯改善老年肺癌患者肺泡的氧合,避免肺不張及肺部炎性病變等并發(fā)癥的發(fā)生,可有效改善老年肺癌患者術(shù)后肺功能。
[參考文獻(xiàn)]
[1] Lin F,Pan L,Qian W,et al.Comparison of three ventilatory modes during one-lung ventilation in elderly patients[J].Int J Clin Exp Med,2015,8(6):9955-9960.
[2] Choudhuri AH,Chandra S,Aggarwal G. Predictors of posto?鄄perative pulmonary complications after liver resection:Results from a tertiary care intensive care unit [J]. Indian J Crit Care Med,2014, 18(6):358-362.
[3] 許俊,金守兵,陳東方,等.對(duì)進(jìn)行機(jī)械通氣的急性肺損傷患者實(shí)施控制性肺膨脹治療的效果研究[J].當(dāng)代醫(yī)藥論叢,2015(2):277-278.
[4] Hemmes SN,Serpa Neto A. Intraoperative ventilatory strate?鄄gies to prevent postoperative pulmonary complications:a meta-analysis [J]. Curr Opin Anaesthesiol,2013,26(2):126-133.
[5] 周彩存.NCCN 2008年非小細(xì)胞肺癌臨床實(shí)踐指南更新[J].腫瘤,2008,28(3):183-186.
[6] 王邵華,阮征,鄭健,等.肺切除術(shù)后肺部并發(fā)癥發(fā)生的危險(xiǎn)因素分析[J].中國(guó)胸心血管外科臨床雜志,2010,17(4):301-306.
[7] 查本俊,吳志云,王永盛.保護(hù)性肺通氣方式在單肺通氣患者中的應(yīng)用[J].臨床軍醫(yī)雜志,2009,37(6):1121-1122.
[8] Michelet P,D'Journo XB,Roch A,et al. Protective ventilation influences systemic inflammation after esophagectomy: a randomized controlled study [J]. Anesthesiology,2006,105(5):911-919.
[9] Patel JM,Baker R,Yeung J,et al. Intra-operative adherence to lung-protective ventilation:a prospective observational study [J]. Perioperat Med,2016,5(1):8.
[10] 李孝建,鐘曉旻,鄧忠遠(yuǎn),等.肺保護(hù)性通氣策略聯(lián)合肺復(fù)張對(duì)嚴(yán)重?zé)齻l(fā)急性呼吸窘迫綜合征患者的療效[J].中華燒傷雜志,2014,30(4):305-309.
[11] 徐志禮.允許性高碳酸血癥的器官保護(hù)及應(yīng)用策略[J].臨床肺科雜志,2011,16(3):432-434.
[12] Wang C,Wang X,Chi C,et al. Lung ventilation strategies for acute respiratory distress syndrome: a systematic review and network meta-analysis [J]. Sci Rep,2016,6:22855.
[13] Bicer C,Esmaoglu A,Akin A. Dexmedetomidine and mep?鄄eridine prevent postanaesthetic shivering [J]. Eur J Anaes?鄄thesiol,2006,23(2):149-153.
[14] 趙雙,曾玲雙,邢學(xué)寧.低潮氣量機(jī)械通氣在全身麻醉中的應(yīng)用[J].現(xiàn)代醫(yī)藥衛(wèi)生,2014,30(4):493-494.
[15] Yang WC,Song CY,Wang N,et al. Hypercapnic acidosis confers antioxidant and anti-apoptosis effects against ven?鄄tilator-induced lung injury [J]. Laborat Invest,2013,93(12):1339.
[16] Yang M,Ahn HJ,Kim K,et al. Does a protective vent?鄄ilation strategy reduce the risk of pulmonary complica?鄄tions after lung cancer surgery? A randomized controlled trial [J]. Chest,2011,139(3):530-537.
[17] 何明楓,陳宇.允許性高碳酸血癥對(duì)單肺通氣后肺功能及萎陷側(cè)肺炎癥反應(yīng)的影響[J].臨床麻醉學(xué)雜志,2015, 31(12):1172-1175.
[18] 崔顯念.支氣管肺泡灌洗液中3種腫瘤標(biāo)志物的檢測(cè)在肺癌診斷及病情評(píng)估中的價(jià)值[J].中國(guó)醫(yī)藥科學(xué),2015, 5(9):130-132.
[19] Kozian A,Schilling T,Schütze H,et al. Ventilatory protective strategies during thoracic surgery: effects of alveolar rec?鄄ruitment maneuver and low-tidal volume ventilation on lung density distribution [J]. Anesthesiology,2011,114(5):1025-1035.
[20] 于洪秀,董慧,蘇芬菊,等.臨床護(hù)理路徑在肺癌全肺切除術(shù)圍術(shù)期中的價(jià)值[J].中國(guó)醫(yī)藥科學(xué),2016,6(7):153-155.
[21] Nichol AD,O'Cronin DF,Naughton F,et al. Hypercapnic acidosis reduces oxidative reactions in endotoxin-induced lung injury [J]. Anesthesiology,2010,113(1):116-125.
[22] Güldner A,Kiss T,Serpa Neto A,et al. Intraoperative protective mechanical ventilation for prevention of posto?鄄perative pulmonary complications:a comprehensive review of the role of tidal volume,positive end-expiratory pressure,and lung recruitment maneuvers [J]. Anesthesiology,2015, 123(3):692-713.
(收稿日期:2017-03-10 本文編輯:程 銘)