Research progress on the predictive value of nutritional assessment tools in lung cancer
XU Mei,LIN Wenwen,NING Li,WANG Li,TANG Amao,XIA YunSchool of Nursing,Zhejiang Chinese Medicine University,Zhejiang 310053 ChinaCorresponding Author NING Li,E-mail:nl5401@163.com
Keywords lung cancer;nutritional assessment tools;prognosis;research progress;review;nursing
摘要 對(duì)常見營(yíng)養(yǎng)評(píng)估工具對(duì)肺癌病人預(yù)后預(yù)測(cè)價(jià)值的研究現(xiàn)狀進(jìn)行綜述,以期為改善肺癌病人預(yù)后提供理論基礎(chǔ)。
關(guān)鍵詞 肺癌;營(yíng)養(yǎng)評(píng)估工具;預(yù)后;研究進(jìn)展;綜述;護(hù)理
doi:10.12102/j.issn.2095-8668.2024.08.008
營(yíng)養(yǎng)不良是全球公共衛(wèi)生問(wèn)題,通常與惡病質(zhì)[1]、肌少癥[2]和衰弱[3]等相關(guān)。肺癌是常見的惡性腫瘤,據(jù)報(bào)道,使用不同營(yíng)養(yǎng)評(píng)估方法得出的肺癌病人營(yíng)養(yǎng)不良發(fā)生率為20%~72%[4-5]。盡管早期篩查診斷和治療策略的蓬勃發(fā)展給肺癌病人帶來(lái)了更大的生存潛力,但多數(shù)病人就醫(yī)時(shí)就處于晚期或轉(zhuǎn)移階段,長(zhǎng)期結(jié)局仍相對(duì)較差,總體5年生存率低于20%[6]。目前,TNM(tumor node metastasis)分期系統(tǒng)、組織學(xué)亞型和遺傳生物標(biāo)志物已廣泛應(yīng)用于肺癌病人生存率的評(píng)估,但部分TNM分期和組織學(xué)亞型相同的肺癌病人預(yù)后差異明顯,且遺傳生物標(biāo)志物的檢測(cè)昂貴[7]。因此,尋找高效便捷的肺癌預(yù)后預(yù)測(cè)指標(biāo)至關(guān)重要,對(duì)提高肺癌群體生存率和實(shí)施個(gè)體化的精準(zhǔn)化管理具有重要意義。近年來(lái),有文獻(xiàn)報(bào)道了營(yíng)養(yǎng)評(píng)估工具作為肺癌病人生存結(jié)局預(yù)測(cè)因子的臨床可行性,并取得較理想的成果[8-9]。An等[10]研究表明,老年?duì)I養(yǎng)風(fēng)險(xiǎn)指數(shù)(Geriatric Nutritional Risk Index,GNRI)是非小細(xì)胞肺癌病人總生存期(overall survival,OS)、癌癥特異性生存期(cancer-specific survival,CSS)和無(wú)復(fù)發(fā)生存期(relapse-free survival,RFS)的預(yù)測(cè)因子。然而,臨床上可用于肺癌病人的營(yíng)養(yǎng)評(píng)估工具繁多,預(yù)測(cè)肺癌病人術(shù)后并發(fā)癥、死亡率、生活質(zhì)量的最佳營(yíng)養(yǎng)評(píng)估工具尚未達(dá)成共識(shí)。本研究對(duì)常見營(yíng)養(yǎng)評(píng)估工具在肺癌病人預(yù)后預(yù)測(cè)價(jià)值中的研究進(jìn)行綜述,以期為肺癌病人預(yù)后提供理論指導(dǎo)。
1 營(yíng)養(yǎng)風(fēng)險(xiǎn)篩查評(píng)估工具
1.1 營(yíng)養(yǎng)風(fēng)險(xiǎn)篩查2002(Nutritional Risk Screening 2002,NRS 2002)
2003年丹麥腸外腸內(nèi)營(yíng)養(yǎng)協(xié)會(huì)發(fā)表NRS 2002[11],為歐洲腸內(nèi)腸外營(yíng)養(yǎng)學(xué)會(huì)(European Society of Parenteral and Enteral Nutrition,ESPEN)所推薦,是目前循證醫(yī)學(xué)證據(jù)最充分的營(yíng)養(yǎng)風(fēng)險(xiǎn)篩查工具。該工具由疾病嚴(yán)重程度評(píng)分(0~3分)、營(yíng)養(yǎng)狀況受損評(píng)分(0~3分)和年齡(≥70歲計(jì)1分、<70歲計(jì)0分)3部分組成,總分0~7分,<3分為無(wú)營(yíng)養(yǎng)風(fēng)險(xiǎn),需1周后復(fù)查;≥3分則表明病人存在營(yíng)養(yǎng)不良風(fēng)險(xiǎn),需要及時(shí)給予營(yíng)養(yǎng)干預(yù)。
多項(xiàng)研究表明,NRS 2002與病人的臨床結(jié)局密切相關(guān),是其住院時(shí)間、術(shù)后并發(fā)癥和死亡率的獨(dú)立預(yù)測(cè)指標(biāo)[12-13]。程蘭[14]研究發(fā)現(xiàn)NRS 2002是影響肺癌病人術(shù)后生活質(zhì)量的重要因素,NRS 2002較高組的術(shù)后住院時(shí)間和術(shù)后拔胸管時(shí)間明顯延長(zhǎng),且術(shù)后并發(fā)癥發(fā)生率較高;在肺癌術(shù)后并發(fā)癥預(yù)測(cè)上與預(yù)后營(yíng)養(yǎng)指數(shù)(Prognostic Nutritional Index,PNI)相似,NRS 2002預(yù)測(cè)術(shù)后并發(fā)癥的受試者工作特征(ROC)曲線下面積(AUC)為0.675,靈敏度為51.9%,特異度為77.2%。Bargetzi等[15]的前瞻性隨機(jī)對(duì)照多中心試驗(yàn)發(fā)現(xiàn),NRS 2002評(píng)分為3分、4分、>4分的30 d全因死亡率逐漸增高,分別為12.0%、17.6%和19.5%,180 d全因死亡率也是如此,分別為37.6%、45.5%和56.6%,該評(píng)分不僅和病人隨訪期間的死亡率密切相關(guān)(P<0.05),還與不良結(jié)局、平均住院時(shí)間、功能下降和生活質(zhì)量下降方面存在關(guān)聯(lián)(P<0.05)。一項(xiàng)多中心觀察性研究根據(jù)全球營(yíng)養(yǎng)領(lǐng)導(dǎo)層倡議的營(yíng)養(yǎng)不良診斷標(biāo)準(zhǔn)共識(shí)(Global Leadership Initiative on Malnutrition Diagnosis Criteria Consensus,GLIM)評(píng)估NRS 2002等的診斷能力,發(fā)現(xiàn)其在識(shí)別營(yíng)養(yǎng)不良方面的總體準(zhǔn)確率為93.1%,更符合GLIM標(biāo)準(zhǔn)[16]。NRS 2002是目前循證醫(yī)學(xué)依據(jù)最充分的營(yíng)養(yǎng)評(píng)估工具,在預(yù)測(cè)肺癌病人住院時(shí)長(zhǎng)、術(shù)后并發(fā)癥和死亡率方面有較高價(jià)值。
1.2 患者主觀整體評(píng)估(Patient-Generated Subjective Global Assessment,PG-SGA)
PG-SGA是1994年Ottery等[17]在主觀整體評(píng)估(Subjective Global Assessment,SGA)的基礎(chǔ)上為腫瘤病人開發(fā)的特異性營(yíng)養(yǎng)評(píng)估工具。由病人自我評(píng)估(體重變化、飲食情況、癥狀、身體狀況)和醫(yī)務(wù)人員評(píng)估(疾病及其與營(yíng)養(yǎng)需求的關(guān)系、代謝狀態(tài)和體格檢查)2部分組成,0~1分為營(yíng)養(yǎng)良好,2~3分為可疑或輕度營(yíng)養(yǎng)不良,4~8分為中度營(yíng)養(yǎng)不良,≥9分為重度營(yíng)養(yǎng)不良。
PG-SGA是美國(guó)飲食協(xié)會(huì)(American Dietetic Association,ADA)腫瘤營(yíng)養(yǎng)飲食實(shí)踐小組推薦的癌癥病人綜合營(yíng)養(yǎng)評(píng)定方法和工具[18]。高文君等[19]應(yīng)用PG-SGA對(duì)222例原發(fā)性肺癌病人進(jìn)行營(yíng)養(yǎng)狀況評(píng)估,發(fā)現(xiàn)無(wú)或輕度營(yíng)養(yǎng)不良比例為34.2%,中度營(yíng)養(yǎng)不良比例高達(dá)36.0%,重度營(yíng)養(yǎng)不良比例為29.8%。現(xiàn)有研究證明,PG-SGA在肺癌病人總生存期和住院時(shí)間方面有著良好的預(yù)測(cè)價(jià)值[20-21]。Ge等[22]對(duì)495例晚期肺癌病人的營(yíng)養(yǎng)狀況進(jìn)行回顧性調(diào)查發(fā)現(xiàn),與PG-SGA評(píng)分>1分的病人相比,PG-SGA評(píng)分0~1分的病人平均生存期明顯更長(zhǎng)(P<0.05),按年齡和性別分層后PG-SGA評(píng)分仍與總生存期密切相關(guān)(P<0.05)。一項(xiàng)關(guān)于我國(guó)北方肺腺癌病人營(yíng)養(yǎng)狀況與住院時(shí)間關(guān)系的調(diào)查顯示,根據(jù)PG-SGA的測(cè)量,約80.1%的病例存在營(yíng)養(yǎng)風(fēng)險(xiǎn),其中20.1%有嚴(yán)重營(yíng)養(yǎng)不良,而根據(jù)NRS 2002的評(píng)估僅有36.2%的病例存在營(yíng)養(yǎng)風(fēng)險(xiǎn)[23];PG-SGA評(píng)估的營(yíng)養(yǎng)不良風(fēng)險(xiǎn)可以預(yù)測(cè)住院時(shí)間。此外,PG-SGA評(píng)分與肺癌病人的生存率獨(dú)立相關(guān)。Feng等[24]在一項(xiàng)預(yù)測(cè)晚期姑息性肺癌病人總生存期的預(yù)后模型研究中確定了PG-SGA評(píng)分的最佳截?cái)嘀禐?2分(P<0.05),多變量Cox回歸分析顯示Ⅳ期、支持性治療、中性粒細(xì)胞與血清清蛋白比值(NAR)gt;0.15和PG-SGA評(píng)分gt;12分是總生存期的獨(dú)立預(yù)測(cè)因子(P<0.05)。PG-SGA是癌癥病人營(yíng)養(yǎng)狀況的有效工具,在肺癌病人中使用廣泛;在預(yù)測(cè)晚期和放化療肺癌病人生存期和住院時(shí)間方面效果顯著。
1.3 營(yíng)養(yǎng)不良通用篩查工具(Malnutritional Universal Screening Tool,MUST)
MUST是一種廣泛使用的營(yíng)養(yǎng)篩查工具[25],包括體質(zhì)指數(shù)(BMI)、體重下降情況和疾病導(dǎo)致進(jìn)食減少3個(gè)維度,每個(gè)維度0~2分,總分0分為低風(fēng)險(xiǎn),無(wú)需干預(yù);1分為中度風(fēng)險(xiǎn),需記錄3 d的飲食和液體攝入量并進(jìn)行重復(fù)篩查;≥2分為高風(fēng)險(xiǎn),需由營(yíng)養(yǎng)師進(jìn)行營(yíng)養(yǎng)干預(yù),改善和增加整體營(yíng)養(yǎng)攝入量。
MUST得分較高常與住院時(shí)間延長(zhǎng)、出院率降低有關(guān)。Maia等[26]研究發(fā)現(xiàn),低、中、高度營(yíng)養(yǎng)不良風(fēng)險(xiǎn)的病人住院天數(shù)(中位數(shù))分別為10、12、13 d,入院時(shí)營(yíng)養(yǎng)不良風(fēng)險(xiǎn)較高的病人住院時(shí)間較長(zhǎng)(P<0.05),無(wú)論性別、年齡、診斷、婚姻狀況和工作狀況如何,肺癌病人入院時(shí)MUST得分≥2分與出院率降低有關(guān)(P<0.05)。目前已有學(xué)者推測(cè)MUST是預(yù)測(cè)病人預(yù)后的獨(dú)立指標(biāo)。Abbass等[27]研究發(fā)現(xiàn),71%的中晚期肺癌病人存在中度至高度營(yíng)養(yǎng)不良風(fēng)險(xiǎn);生存分析表明,MUST得分為0分的中晚期肺癌病人的中位生存時(shí)間為13個(gè)月;MUST得分為1分的中位生存時(shí)間為10個(gè)月;MUST得分≥2分的中位生存時(shí)間為6個(gè)月,可見MUST得分與中晚期肺癌病人的總生存期相關(guān)(P<0.05)。Dolan等[28]的一項(xiàng)關(guān)于肺癌病人的前瞻性研究顯示,57%的肺癌病人有營(yíng)養(yǎng)風(fēng)險(xiǎn),且MUST得分與總生存期相關(guān)(P<0.05)。MUST是一種簡(jiǎn)便、快捷的營(yíng)養(yǎng)不良篩查工具,與住院時(shí)間和出院率相關(guān)。在預(yù)測(cè)中晚期肺癌病人總生存期方面表現(xiàn)出良好的預(yù)測(cè)效度。
1.4 微型營(yíng)養(yǎng)評(píng)定問(wèn)卷(Mini-Nutritional Assessment,MNA)
MNA是針對(duì)老年人群最成熟的營(yíng)養(yǎng)評(píng)估工具[29],包含18個(gè)條目,總分0~30分,通常以17分和24分為界分為營(yíng)養(yǎng)不良、潛在營(yíng)養(yǎng)不良和營(yíng)養(yǎng)良好3個(gè)結(jié)局。由于MNA條目繁多,不利于老年人記憶,因此有學(xué)者將MNA進(jìn)行簡(jiǎn)化后開發(fā)出MNA-SF,包括體重丟失、疾病、活動(dòng)能力、精神疾病、食欲情況、BMI、和小腿圍7個(gè)方面。
Zhang等[30]研究發(fā)現(xiàn),與營(yíng)養(yǎng)狀態(tài)良好的病人相比,MNA評(píng)估的營(yíng)養(yǎng)不良老年癌癥病人的死亡風(fēng)險(xiǎn)顯著增加。Polański等[31]研究表明,MNA評(píng)估為營(yíng)養(yǎng)不良的病人發(fā)展到晚期的可能性更大(P<0.05)。MNA也可在實(shí)驗(yàn)室指標(biāo)變化前提示營(yíng)養(yǎng)不良風(fēng)險(xiǎn),且診斷和預(yù)測(cè)能力較強(qiáng)[32]。Gioulbasanis等[33]在轉(zhuǎn)移性肺癌病人中的研究表明,MNA與大多數(shù)臨床實(shí)驗(yàn)室數(shù)據(jù)相關(guān),在疾病特征方面,MNA與轉(zhuǎn)移部位數(shù)量、腦轉(zhuǎn)移是否存在相關(guān),還與不良結(jié)局、營(yíng)養(yǎng)不良、炎癥-惡病質(zhì)3方面的指標(biāo)相關(guān)(P<0.05)。此外,該研究還發(fā)現(xiàn),與MNA得分>23.5分的病人(中位生存期為17.3個(gè)月)相比,17.0~23.5分的病人(中位生存期為6.6個(gè)月)的生存期明顯縮短(P<0.05),對(duì)MNA得分<17分的病人(中位生存期僅為2.07個(gè)月)差異更顯著(P<0.05)。一項(xiàng)探究轉(zhuǎn)移性肺癌病人MNA與惡病質(zhì)生化標(biāo)志物的預(yù)后相關(guān)性研究顯示,在平均隨訪38.2個(gè)月后,年齡、轉(zhuǎn)移部位數(shù)、MNA得分和瘦素與總生存期獨(dú)立相關(guān)(P<0.05)[34]。MNA主要適用于老年人的營(yíng)養(yǎng)狀況篩查及分級(jí),近年來(lái)已成為預(yù)測(cè)老年癌癥病人預(yù)后的重要指標(biāo),在臨床中安全適用,在老年肺癌病人和轉(zhuǎn)移性肺癌病人中有較高價(jià)值,可幫助預(yù)測(cè)總生存期,降低肺癌病人死亡風(fēng)險(xiǎn)。
2 客觀營(yíng)養(yǎng)學(xué)評(píng)價(jià)指標(biāo)
2.1 GNRI
GNRI是專為年齡≥65歲的住院老年病人開發(fā)的營(yíng)養(yǎng)評(píng)估指數(shù)[35]。計(jì)算公式:GNRI=[14.89×血清清蛋白(g/dL)]+41.7×[當(dāng)前體重(kg)/理想體重(kg)]。GNRI≥98為無(wú)營(yíng)養(yǎng)不良風(fēng)險(xiǎn),92~<98為低風(fēng)險(xiǎn),82~<92為中風(fēng)險(xiǎn),<82為高風(fēng)險(xiǎn)。近年來(lái)已被廣泛建議作為預(yù)測(cè)各種惡性腫瘤預(yù)后情況的重要指標(biāo),是預(yù)測(cè)各種癌癥病人預(yù)后和治療效果的簡(jiǎn)單而有用的標(biāo)志[36-37]。
Shoji等[38]研究表明,低GNRI與老年非小細(xì)胞肺癌病人術(shù)后并發(fā)癥增加有關(guān),術(shù)前GNRI是病人術(shù)后并發(fā)癥的新型預(yù)測(cè)因子。此外,有報(bào)道稱GNRI是預(yù)測(cè)肺癌病人生存結(jié)局的簡(jiǎn)單、經(jīng)濟(jì)、高效且有用的標(biāo)志[39]。雷嬌潔等[40]回顧性分析了2015年1月—2016年12月接受肺癌根治術(shù)的153例病人的臨床特征和手術(shù)結(jié)局,發(fā)現(xiàn)無(wú)風(fēng)險(xiǎn)組病人中位生存期(47個(gè)月)較有風(fēng)險(xiǎn)組(32個(gè)月)更長(zhǎng)。一項(xiàng)探討GNRI對(duì)非小細(xì)胞肺癌病人影響及其預(yù)后價(jià)值的研究指出,較低的治療前GNRI與較差的總生存期、癌癥特異性生存期和無(wú)復(fù)發(fā)生存期密切相關(guān)(P<0.05),即使在亞組分析和敏感性分析去除潛在混雜因素之后,結(jié)果仍保持穩(wěn)定[41]。然而,Hino等[42]針對(duì)手術(shù)治療后原發(fā)性肺癌病人的總生存期和癌癥特異性生存期的研究結(jié)果發(fā)現(xiàn),僅≥70歲病人高GNRI和低GNRI差異有統(tǒng)計(jì)學(xué)意義(P<0.05),其可作為預(yù)測(cè)老年肺癌病人預(yù)后因素有效且可靠的指標(biāo)。近年來(lái),GNRI在肺癌病人預(yù)后預(yù)測(cè)模型構(gòu)建上作用日益凸顯。An等[10]基于單因素及多因素回歸分析發(fā)現(xiàn),GNRI是所有年齡組Ⅰ~Ⅲ期NSCLC病人預(yù)后的獨(dú)立危險(xiǎn)因素,利用列線圖建立肺癌病人總生存期、癌癥特異性生存期和無(wú)復(fù)發(fā)生存期預(yù)測(cè)模型,校準(zhǔn)曲線顯示預(yù)測(cè)的生存期與實(shí)際生存期高度一致。GNRI是預(yù)測(cè)肺癌病人預(yù)后的簡(jiǎn)單而有效的標(biāo)志,有助于預(yù)測(cè)肺癌病人生存結(jié)局,特別是老年肺癌病人。
2.2 PNI
PNI由血清清蛋白水平和外周血總淋巴細(xì)胞計(jì)數(shù)構(gòu)成,是評(píng)估癌癥病人營(yíng)養(yǎng)和免疫狀況的有效指標(biāo)[43]。計(jì)算公式:PNI=淋巴細(xì)胞計(jì)數(shù)總值(×109/L)×5+血清清蛋白(g/L)。越來(lái)越多的證據(jù)表明,低PNI與胃腸道癌癥[44]、泌尿生殖系統(tǒng)癌癥[45]等實(shí)體瘤的不良預(yù)后相關(guān)。
許文娟等[46]研究發(fā)現(xiàn),中晚期非小細(xì)胞肺癌病人PNI平均值是46.24,時(shí)間依存Cox回歸模型分析顯示,低PNI組(<46.24)病人的死亡風(fēng)險(xiǎn)較高PNI組(>46.24)顯著提高(P<0.05)。Watanabe等[47]回顧性研究發(fā)現(xiàn),PNI≥45和<45的老年肺癌手術(shù)病人5年CSS分別為76.2%和47.8%,5年總生存期分別為61.9%和39.8%(P<0.05)。Gul等[9]研究探討了PNI和外周血中性粒細(xì)胞與淋巴細(xì)胞比值在接受鉑類藥物治療的晚期非小細(xì)胞肺癌病人預(yù)后中的價(jià)值,研究發(fā)現(xiàn),腦轉(zhuǎn)移和低PNI是RFS的獨(dú)立預(yù)后因素(P<0.05)。Matsuura等[48]評(píng)估了GNRI在放化療后Ⅲ期非小細(xì)胞肺癌病人中的預(yù)測(cè)價(jià)值,研究顯示,PNI的臨界值為37.9,敏感性和特異性分別為67.9%和67.9%;與高PNI組相比,低PNI組病人的無(wú)進(jìn)展生存期(9.1個(gè)月)較高PNI組(21.3個(gè)月)短。此外,有報(bào)道低PNI預(yù)示晚期肺癌病人的生活質(zhì)量較差。Zhang等[49]研究結(jié)果顯示,PNI是Ⅳ期肺癌病人生活質(zhì)量的預(yù)測(cè)標(biāo)志,較低的PNI表明病人需要開展生活質(zhì)量干預(yù)。PNI是一種可靠、簡(jiǎn)單、易于獲得的指標(biāo),具有較好的臨床應(yīng)用價(jià)值,是預(yù)測(cè)常規(guī)臨床實(shí)踐中手術(shù)和化療肺癌病人預(yù)后情況的重要指標(biāo)。
2.3 控制營(yíng)養(yǎng)狀態(tài)評(píng)分(Controlling Nutritional Status,CONUT)
CONUT評(píng)分是一種新興的營(yíng)養(yǎng)狀況評(píng)分方式,由血清清蛋白濃度、外周淋巴細(xì)胞總數(shù)和總膽固醇濃度3部分計(jì)算得出,根據(jù)實(shí)驗(yàn)室檢測(cè)結(jié)果進(jìn)行賦分,總分為0~12分,0~1分為營(yíng)養(yǎng)正常,2~4分為輕度營(yíng)養(yǎng)不良,5~8分為中度營(yíng)養(yǎng)不良,9~12分為重度營(yíng)養(yǎng)不良[50]。
有研究顯示,CONUT評(píng)分與惡性腫瘤的臨床結(jié)果有關(guān),近年來(lái)已成為結(jié)直腸癌[51]、胃癌[52]、食管癌[53]、乳腺癌[54]等實(shí)體器官惡性腫瘤進(jìn)展和術(shù)后并發(fā)癥的潛在預(yù)測(cè)指標(biāo)。自2017年起,日本九州大學(xué)醫(yī)學(xué)部最早開展CONUT評(píng)分在肺癌病人生存期預(yù)測(cè)方面的相關(guān)研究[55],此后越來(lái)越多的學(xué)者開始探討CONUT評(píng)分在肺癌病人預(yù)后研究中的應(yīng)用價(jià)值。Zhang等[56]一項(xiàng)包含278例Ⅲ~Ⅳ期非小細(xì)胞肺癌病人回顧性研究顯示,CONUT評(píng)分≥3分與高齡、更差的體力狀況、晚期臨床分期、較高的系統(tǒng)性免疫炎癥指數(shù)及較低的PNI相關(guān)(P<0.05)。CONUT評(píng)分在術(shù)后并發(fā)癥預(yù)測(cè)方面表現(xiàn)出優(yōu)越性。Lee等[57]研究表明,在非小細(xì)胞肺癌術(shù)后并發(fā)癥預(yù)測(cè)上,CONUT評(píng)分、PNI、格拉斯哥預(yù)后評(píng)分(Glasgow Prognostic Score,GPS)和手術(shù)后肺部并發(fā)癥風(fēng)險(xiǎn)評(píng)分的評(píng)估性能較好。先前系統(tǒng)評(píng)價(jià)已經(jīng)表明,CONUT評(píng)分是肺癌病人臨床結(jié)局有力預(yù)測(cè)指標(biāo),高CONUT評(píng)分與不良OS、CSS和RFS具有相關(guān)性[58]。近年來(lái),CONUT逐漸成為肺癌病人預(yù)后模型研究中的常見要素。Liu等[59]認(rèn)為基于CONUT的列線圖模型可以很好地預(yù)測(cè)肺癌病人的預(yù)后,在預(yù)測(cè)1、2、3年的OS方面比TNM分期具有更好的分辨率和準(zhǔn)確性。近年來(lái),CONUT在肺癌病人預(yù)后研究中表現(xiàn)良好,然而關(guān)于CONUT評(píng)分是否是長(zhǎng)期預(yù)后的獨(dú)立預(yù)后因素尚有爭(zhēng)議,不僅與不同臨床病理特征相關(guān),還受CONUT評(píng)分臨界值的影響。Akamine等[55]研究表明,當(dāng)臨界分?jǐn)?shù)設(shè)置為2分時(shí),CONUT與無(wú)病生存期(DFS)和OS之間沒有關(guān)聯(lián),而Y1lmaz等[60]研究結(jié)論則與之相反,即當(dāng)臨界分?jǐn)?shù)設(shè)置為2分時(shí),高CONUT組的無(wú)進(jìn)展生存期(PFS)和OS差于低CONUT組。因此,CONUT評(píng)分是預(yù)測(cè)肺癌病人臨床結(jié)局的有力指標(biāo),但其臨界值的選取尚有爭(zhēng)議。未來(lái)仍需要大樣本、多中心、高質(zhì)量的前瞻性研究來(lái)驗(yàn)證不同CONUT評(píng)分臨界值在預(yù)測(cè)肺癌病人預(yù)后中的價(jià)值。
3 小結(jié)
綜上所述,盡管現(xiàn)代醫(yī)學(xué)發(fā)展為肺癌的診斷和治療帶來(lái)希望,但肺癌病人的預(yù)后仍不樂(lè)觀,越來(lái)越多的研究證實(shí)肺癌病人的營(yíng)養(yǎng)狀況和全身炎性反應(yīng)與肺癌病人的預(yù)后密切相關(guān)。近年來(lái),各國(guó)研究者關(guān)注到常見營(yíng)養(yǎng)評(píng)估工具在肺癌病人預(yù)后預(yù)測(cè)方面具有重要價(jià)值。準(zhǔn)確及時(shí)的營(yíng)養(yǎng)評(píng)估有助于推動(dòng)肺癌病人營(yíng)養(yǎng)干預(yù),改善肺癌病人營(yíng)養(yǎng)狀況,并提高病人生存率,延長(zhǎng)生存周期,如何選擇合適的營(yíng)養(yǎng)評(píng)估工具是臨床醫(yī)務(wù)工作者需要關(guān)注的問(wèn)題。在預(yù)測(cè)轉(zhuǎn)移性肺癌病人預(yù)后方面,MNA和PNI效果顯著;在預(yù)測(cè)晚期肺癌病人生存結(jié)局方面,PG-SGA、PNI、MUST均表現(xiàn)良好。此外,由于客觀營(yíng)養(yǎng)指標(biāo)PNI、CONUT和GNRI均可在臨床實(shí)踐中對(duì)肺癌病人死亡風(fēng)險(xiǎn)進(jìn)行分層,并對(duì)肺癌病人的預(yù)后進(jìn)行定量估計(jì)。因此,逐漸成為包括TNM分期系統(tǒng)在內(nèi)的傳統(tǒng)預(yù)后預(yù)測(cè)模型的補(bǔ)充工具。良好的預(yù)測(cè)模型有助于臨床醫(yī)師進(jìn)行個(gè)體化治療,對(duì)延緩疾病發(fā)展、提高病人生存率和生活質(zhì)量意義重大。未來(lái)需要進(jìn)一步擴(kuò)大規(guī)模,進(jìn)行大樣本、多中心的研究來(lái)驗(yàn)證營(yíng)養(yǎng)評(píng)分系統(tǒng)在肺癌預(yù)后預(yù)測(cè)價(jià)值中的有效性。
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(收稿日期:2023-11-06;修回日期:2024-03-28)
(本文編輯趙奕雯 孫玉梅)
基金項(xiàng)目 浙江省基礎(chǔ)公益研究計(jì)劃項(xiàng)目,編號(hào):LGF22H160079;浙江省醫(yī)藥衛(wèi)生科技計(jì)劃項(xiàng)目,編號(hào):2023KY192
作者簡(jiǎn)介 徐梅,碩士研究生在讀
*通訊作者 寧麗,E-mail:nl5401@163.com
引用信息 徐梅,林雯雯,寧麗,等.營(yíng)養(yǎng)評(píng)估工具對(duì)肺癌預(yù)后預(yù)測(cè)價(jià)值的研究進(jìn)展[J].循證護(hù)理,2024,10(8):1370-1375.