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胆源性急性胰腺炎(biliogenic acute pancreatitis, BAP)的发生涉及消化酶的作用、微循环的改变、胰管屏障的破坏等病理生理学过程,临床结局差异较大,多数病人可能仅有腹胀、腹痛等不适,但部分症状严重者往往会发展至多器官衰竭甚至死亡[1]。因此,临床上寻找能够预测BAP预后的标志物,从而早期对预后较差的病人实施必要的干预,显得十分重要。血小板淋巴细胞比值(platelet to lymphocyte ratio, PLR)和中性粒淋巴细胞比值(neutrophil to lymphocyte ratio, NLR)是临床上通过血常规即可获取的免疫炎症标志物,现有的研究[2-5]证据表明,二者与胃癌、肝癌、膀胱癌等肿瘤预后密切相关。然而二者与BAP相关研究较少,本研究探讨PLR、NLR与BAP病人预后之间的关系,以期为临床中BAP的诊治提供帮助。
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以病人的随访期间病人生存状态为判定依据,PLR的最佳临界值为344.7,AUC为0.787;NLR的最佳临界值为17.8,AUC为0.655(见图 1)。PLR和NLR的AUC比较,PLR的诊断价值高于NLR,差异有统计学意义(Z=2.03,P < 0.05)。
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以PLR和NLR最佳临界值将病人分为PLR高组(PLR>344.7)165例和PLR低组(PLR≤344.7)173例,NLR高组(NLR>17.8)149例和NLR低组(NLR≤17.8)189例。PLR和NLR均与病人性别、年龄、体质量指数、高血压、糖尿病等临床参数无关(P>0.05)。但在高NLR组血清淀粉酶升高的病人比例高于低NLR组,差异有统计学意义(P < 0.01)(见表 1)。
临床病理参数 NLR χ2 P PLR χ2 P NLR≤17.8 NLR>17.8 PLR≤344.7 PLR>344.7 年龄/岁 ≤60
>6086
63112
770.08 >0.05 100
7398
670.09 >0.05 性别 男
女80
6995
940.39 >0.05 87
8688
870.31 >0.05 BMI 低
高115
34146
430.002 >0.05 128
45133
325.22 >0.05 血清淀粉酶/(U/L) >405
≤40576
73132
5711.65 < 0.01 99
74109
562.44 >0.05 糖尿病 无
有123
26162
270.63 >0.05 149
24139
290.88 >0.05 高血压 无
有126
23151
381.22 >0.05 137
36140
251.83 >0.05 表 1 PLR和NLR与BAP病人临床特征之间的关系(n)
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高PLR组平均生存时间为93.43 d(95%CI: 90.89~97.86),低于低PLR组平均生存时间99.43 d(95%CI: 98.15~100.72),差异有统计学意义(χ2=8.062, P < 0.01)(见图 2)。高NLR组平均生存时间为94.16 d(95%CI: 90.33~97.99.00),低于低NLR组平均生存时间98.96 d(95%CI: 97.38~100.53),差异有统计学意义(χ2=6.876, P < 0.01)(见图 3)。Kaplan-Meier法分析结果提示PLR和NLR影响BAP病人预后。以100 d随访生存时间和生存状态(死亡=0,生存=1)作为因变量,以年龄(>60=0, ≤60=1)、性别(男= 0,女=1)、BMI(>18.5kg/m2=0,≤18.5 kg/m2=1)和血清淀粉酶(>405=1,≤405=2)、NLR(低=0,高=1)和PLR(高=0,低=1)等临床特征为自变量进行Cox等比例风险模型分析,结果表明PLR、NLR与病人预后有关系,其中低PLR病人死亡风险是高PLR病人死亡风险的3.551倍(95%CI: 1.161~10.868);高NLR病人死亡风险是低NLR病人死亡风险的2.769倍(95%CI: 1.039~7.397)(见表 2)。
临床病理参数 B SE Waldχ2 HR 95%CI P NLR 1.025 0.501 4.179 2.769 1.039~7.397 < 0.05 PLR 1.266 0.571 4.908 3.551 1.161~10.868 < 0.05 表 2 BAP病人多因素生存分析
血小板淋巴细胞比值、中性粒淋巴细胞比值与胆源性急性胰腺炎病人预后的关系
Relationship between platelet to lymphocyte ratio, neutrophil to lymphocyte ratio and prognosis of patients with biliogenic acute pancreatitis
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摘要:
目的研究血小板淋巴细胞比值(PLR)、中性粒淋巴细胞比值(NLR)与胆源性急性胰腺炎病人预后关系, 并比较二者在预测胆源性急性胰腺炎预后中的价值。 方法回顾性分析2015年1月至2020年1月338例首诊的胆源性急性胰腺炎病人临床资料, 利用受试者工作特征曲线(ROC)得出PLR与NLR最佳界值; 比较不同水平PLR和NLR病人的临床特征, 分析胆源性急性胰腺炎预后的危险因素。 结果以生存状态为依据PLR最佳界值为344.7, NLR的最佳界值为17.8。PLR的ROC曲线下面积(AUC)大于NLR (Z=2.03, P < 0.05)。多因素Cox回归模型表明, 低PLR病人死亡风险是高PLR病人死亡风险的3.551倍(95%CI: 1.161~10.868);高NLR病人死亡风险是低NLR病人死亡风险的2.769倍(95%CI: 1.039~7.397)。 结论PLR和NLR可能与胆源性急性胰腺炎预后相关。与NLR相比, PLR预测急性胰腺炎预后更加准确。 Abstract:ObjectiveTo study the relationship between platelet to lymphocyte ratio(PLR), neutrophil to lymphocyte ratio(NLR) and the prognosis of patients with biliogenic acute pancreatitis, and to compare their value in predicting the prognosis of biliogenic acute pancreatitis. MethodsThe clinical data of 338 patients with biliogenic acute pancreatitis diagnosed first time from January 2015 to January 2020 were retrospectively reviewed.Receiver operating curve(ROC) was used to determine the best critical value of PLR and NLR.The clinical features of patients with different levels of PLR and NLR were compared and the prognostic risk factors of biliogenic acute pancreatitis were explored. ResultsThe best critical values of PLR and NLR were 344.7 and 17.8, respectively according to the survival status of patients.The area under ROC curve(AUC) of PLR was bigger than NLR(Z=2.03, P < 0.05).Multivariate Cox regression model showed that the death risk of patients with low PLR was 3.551 times higher than that in patients with high PLR(95%CI: 1.161-10.868), and the risk of death in patients with high NLR was 2.769 times higher than that in patients with low NLR(95%CI: 1.039-7.397). ConclusionsPLR and NLR may be related to the prognosis of biliogenic acute pancreatitis.Compared with NLR, PLR is more accurate in predicting the prognosis of biliogenic acute pancreatitis. -
表 1 PLR和NLR与BAP病人临床特征之间的关系(n)
临床病理参数 NLR χ2 P PLR χ2 P NLR≤17.8 NLR>17.8 PLR≤344.7 PLR>344.7 年龄/岁 ≤60
>6086
63112
770.08 >0.05 100
7398
670.09 >0.05 性别 男
女80
6995
940.39 >0.05 87
8688
870.31 >0.05 BMI 低
高115
34146
430.002 >0.05 128
45133
325.22 >0.05 血清淀粉酶/(U/L) >405
≤40576
73132
5711.65 < 0.01 99
74109
562.44 >0.05 糖尿病 无
有123
26162
270.63 >0.05 149
24139
290.88 >0.05 高血压 无
有126
23151
381.22 >0.05 137
36140
251.83 >0.05 表 2 BAP病人多因素生存分析
临床病理参数 B SE Waldχ2 HR 95%CI P NLR 1.025 0.501 4.179 2.769 1.039~7.397 < 0.05 PLR 1.266 0.571 4.908 3.551 1.161~10.868 < 0.05 -
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