常规治疗方法被对照组在置管后采用：包括敏感抗生素控制感染、吸氧、营养疗

Conventional treatment methods were adopted by the control group after intubation: including sensitive antibiotics to control infection, oxygen inhalation, nutritional therapy, cardiotonic therapy, and diuresis; <br><br>conventional treatment combined with continuous blood purification therapy were adopted by the experimental group: Fresenius multiFiltrate blood purification Equipment, puncture of internal jugular vein or femoral vein indwelling single needle double lumen catheter.

The conventional treatment methods were adopted by the control group after the tube: including sensitive antibiotics to control infection, oxygen absorption, nutrition therapy, strong heart, diuretic and other treatments;<br><br>Conventional treatments combined with continuous blood purification therapy were used by the experimental group: a single-needle double-cavity catheter was left with a blood purification device from Fresenius multiFiltrate in Germany, with a vein in the neck or a vein puncture in the neck.

The control group was given conventional treatment after catheterization, including sensitive antibiotic control of infection, oxygen inhalation, nutrition therapy, cardiotonic, diuretic therapy, etc;<br>Conventional treatment combined with continuous blood purification therapy was used in the experimental group: Fresenius multifiltrate blood purification equipment was used, and single needle double lumen catheter was indwelling through internal jugular vein or femoral vein.<br>