对不同医院的首次输注化疗药物的患者静脉通路进行追踪观察，包括留置针、P

Follow up and observe the venous access of patients receiving chemotherapy drugs for the first time in different hospitals, including infusion channels such as indwelling needles, PICC, CVC, etc., statistics the use of venous access tools throughout the treatment of patients, and compare the single use time and complications of different venous access Something happened.

The intravenous pathways of patients with the first infusion chemotherapy drugs in different hospitals were followed and observed, including the infusion pathways such as retention needles, PICC, CVC, and the use of intravenous pathway tools for the treatment of patients throughout the treatment was counted, and the single-use time and complications of different vein pathways were compared.

The venous access of patients who received chemotherapy drugs for the first time in different hospitals was observed, including indwelling needle, PICC, CVC and other infusion channels. The use of intravenous access tools in the whole treatment process was counted, and the single use time and complications of different venous access were compared.<br>