降钙素原对急性百草枯中毒患者预后的作用

目的 分析急性百草枯中毒(PQ)患者降钙素原(PCT)水平变化特点,探讨其与病情严重程度和预后的关系.方法 选取2013年3月至2014年3月郑州大学第一附属医院急诊医学部收治的急性百草枯中毒患者128例进行回顾性分析,根据中毒后28 d预后分为生存组和死亡组.详细记录患者的中毒剂量、尿百草枯浓度、中毒距就诊时间、中毒距血液灌流时间等一般资料.在患者入院第1,3,7天分别测其血清PCT等生化指标.分析生存组和死亡组PCT指标的动态变化,探讨PCT对急性百草枯中毒患者病情评估及预后的预测价值.结果 128例患者存活72例,死亡56例.其中,有90例患者入院第1天测得PCT水平有不同程度升高,最后死亡48例.生存组和死亡组比较:死亡组患者PCT动态水平与生存组相比差异具有统计学意义[1 d:(0.96±0.13)vs.(0.08±0.01),3d:(1.12±0.14)vs.(0.28±0.05),7d:(1.22±0.14)vs.(0.20±0.03),P＜0.01];动态观察发现,死亡组PCT呈逐步上升趋势,生存组于第3天达高峰后呈下降趋势.病程早期PCT水平与中毒剂量、尿百草枯浓度、CRP、WBC、ALT、CR之间有显著相关性(相关系数r分别为0.794、0.724、0.723、0.332、0.700、0.414,P均＜0.01).结论 急性百草枯中毒后早期PCT水平升高与中毒剂量及尿百草枯浓度呈显著相关性,可作为反映百草枯中毒严重程度的指标;动态监测PCT水平变化,对了解病情发展、预后评估具有重要意义.

Prognostic value of procalcitonin in patients with acute paraquat intoxication

Objective To study the prognostic value of procalcitonin (PCT) level in the outcome of patients with paraquat poisoning (PQ).Methods The clinical data of 128 patients with acute PQ admitted to emergency department were collected from March 2013 through March 2014.The patients were divided into two groups:the death group and the survival group (survival of 28 days).Poisoning doses,urine concentration of PQ,time elapsed from poisoning to admission,and time elapsed from poisoning to gastrolavage were documented.And on the 1 st day,the 3rd day and the 7th day after poisoning,serum PCT were detected.The level of PCT was used to investigate the prognostic values in patients with acute PQ in the death group and survival group.Results Of 128 cases,72 (56.3％) survived and 56 died in 28 days.Among them,the level of PCT increased to some extent in the first day in 90 cases,and 48 patients died.According to trend analysis,the levels of PCT in death group on the 1st day,the 3rd day and the 7th day after PQ were significantly higher than those in survival group [ld:(0.96 ±0.13) vs.(0.08 ±0.01),3d:(1.12 ±0.14) vs.(0.28 ±0.05),7d:(1.22 ±0.14) vs.(0.20 ±0.03),P ＜0.01].There was a trend of escalating PCT levels in death group,whereas the PCT level reached the peak on the 3st day and decreased gradually in the following days in survival group.The early PCT level was obviously related to poisoning doses,urine concentration,CRP,WBC,ALT,CR (the coefficient of association were 0.794,0.723,0.724,0.332,0.700,0.414,respectively,P＜0.01).Conclusions The serum level of PCT increased in patients with acute PQ was significantly positively correlated with the oral dose and urine concentration of paraquat,and it can be used as an indicator for PQ severity.There is important clinical significance in detecting the change of serum level of PCT for estimating the condition of patients and evaluating the prognosis.