摘要
目的探讨持续血浆灌流治疗对血浆中百草枯浓度(PPQ)的影响及清除作用。方法采用前瞻性观察研究,选择本院中毒急救中心24h内就诊的急性百草枯(PQ)中毒患者21例,均进行持续血浆灌流治疗,血流速度180ml/min,血浆流量40ml/min,每隔3h更换一个活性炭灌流器,于首次灌流前及更换灌流器后1.5h记录尿百草枯浓度(UPQ)、尿流速(uFR)、PPQ各1次,并计算肾脏和血浆灌流对PQ的清除速度。结果21例患者共进行了108次血浆灌流治疗,持续血浆灌流中每次血浆灌流对PQ的清除速度(ml/min)均显著高于同时间段肾脏自身的PQ清除速度[第1次(21例)11.14±6.13比5.33±4.33,第2次(21例)18.36±11.32比4.85±3.15,第3次(21例)16.13±10.05比0.84±0.80,第4次(17例)12.86(6.72,17.47)比0.28(0.09,0.60),第5次(11例)14.12(10.48,35.20)比0.10(0.03,0.73),第6次(7例)16.47(11.82,20.69)比0.13(0.03,0.40),第7次(5例)13.33(9.71,18.75)比0.33(0.24,0.47),第8次(5例)11.27(9.21,16.02)比0.32(O.10,1.22),P〈0.05或P〈0.01];血浆灌流对PQ的清除与PPQ呈负相关(r=-0.4799,P〈0.0001),肾脏对PQ的清除与PPQ呈正相关(r=0.5060,P〈0.0001)。存活者(10例)PPQ的下降速度(mg·L^-1·h^-1)要高于死亡者(11例,0.57±0.03比0.47±0.06,P〈0.05)。结论持续血浆灌流治疗可以降低PPQ,可能是治疗PQ中毒的一个手段。
Objective To examine the impact of continuous plasma perfusion on plasma PQ concentra- tion (PPQ) in acute PQ-poisoning patients for the estimation of its PQ clearance effect. Methods 21 PQpoisoned patients admitted to our poisoning center within 24 hours after the ingestion were prospectively enrolled. Continuous plasma perfusion (flow rate 180 ml/min) was performed, with plasma/blood separation at 40 ml/min and routine cartridges change every 3 hours. Urinary PQ (UPQ), urine flow rate (UFR), and PPQ level at inlet/outlet of the cartridge were obtained right before, and 1.5 hours after the start of each perfusion session for calculation of renal and plasma PQ excretion. Results In all 8 rounds (108 sessions) of plasma perfusion on the 21 patients, PQ elimination rate (ml/min) by plasma perfusion was found always higher than the renal value: [1st (21 cases) 11.14±6. 13 vs. 5.33±4.33; 2nd (21 cases) 18.36±11.32 vs. 4.85±3.15; 3rd (21 cases) 16.13±10.05 vs. 0.84±0.80; 4th (17 cases) 12.86 (6.72, 17.47)vs. 0.28 (0.09, 0.60); 5th (11 cases) 14.12 (10. 48, 35.20) vs. 0.10 (0.03, 0.73); 6th (7 cases) 16.47 (11.82; 20.69) vs. 0.13 (0.03, 0.40); 7th (5 cases) 13.33 (9.71, 18.75)vs. 0.33 (0.24, 0.47); 8th (5 cases) 11.27 (9.21, 16.02) vs. 0.32 (0.10, 1.22), P〈0.05 or P〈0.01]. In the study, PPQ was found negatively correlated to PQ elimination by plasma perfusion (r =- 0. 479 9, P〈0. 000 1), and positively correlated to the renal elimination (r=0. 506 0, P〈 0. 000 1). The survivors (10 cases) showed a higher PPQ reduction rate (mg . L-1 . h-1) than the non-survivors (11 cases, 0. 57± 0.03 vs. 0.47±0.06, P〈0.05). Conclusion Continuous plasma perfusion may be a promising therapeutic tool for its significant PPQ reduction effect, and plasma perfusion should be made available early for patients with acute PQ intoxication.
出处
《中国危重病急救医学》
CAS
CSCD
北大核心
2011年第10期588-592,共5页
Chinese Critical Care Medicine
关键词
百草枯
中毒
持续血浆灌流
毒物清除
血浆百草枯浓度
Paraquat
Poisoning
Continuous plasma perfusion
Elimination of paraquat
Plasma paraquat concentration