RESUMEN
Objective To observe the clinical effect of hemoperfusion in the treatment of patients with critical severe organophosphorus poisoning. Methods Sixty-two patients with critical severe organophosphorus poisoning admitted to the Department of Critical Care Medicine of Jincheng People's Hospital from August 2016 to August 2018 were enrolled, and they were divided into a routine treatment group and a hemoperfusion group according to whether hemoperfusion or not, 31 cases in each group. The routine treatment group was treated with western drugs combined with continuous gastric lavage, while the hemoperfusion group was additionally treated with hemoperfusion for consecutive 3 days on the basis of the routine emergency regimen. The changes of the dosage of penehyclidine hydrochloride used, recovery time of consciousness, recovery time of cholinesterase (ChE) activity, off-line time of mechanical ventilation, hospitalization time, poisoning rebound and mortality were observed in the two groups after treatment; Glasgow coma scale (GCS) was used to assess the prognosis of patients. Results The dosage of penehyclidine hydrochloride used in hemoperfusion group was less than that in the routine treatment group (mg: 3.1±1.2 vs. 5.8±1.3), and the time of consciousness recovery (hours: 3.3±1.7 vs. 13.4±2.4), recovery time of ChE activity (days: 7.7±1.5 vs. 17.9±3.3), off-line time (days: 2.1±0.9 vs. 7.5±2.6), hospitalization time (days: 12.3±1.5 vs. 19.8±3.6) in hemoperfusion group were shorter than those in the routine treatment group (all P < 0.05); poisoning rebound [3.23% (1/31) vs. 16.13% (5/31)] and mortality [9.68% (3/31) vs. 25.81% (8/31)] in hemoperfusion group were lower than those in the routine treatment group (both P < 0.05). The Glasgow coma score (GCS) of the hemoperfusion group on 3, 4 and 5 days after treatment were all higher than those of the routine treatment group (9.9±2.9 vs. 5.7±2.6, 13.3±2.7 vs.7.8±3.2, 13.3±1.5 vs.9.3±2.6, all P < 0.05). Conclusion The conventional treatment, western drug and gastric lavage, combined with hemoperfusion in patients with critical severe organophosphorus poisoning can further reduce the hospital stay, improve the quality of life and reduce the mortality of such patients, therefore.