Patients with leukemia often require multiple courses of therapy, and with treatment based on intravenous infusions, it is especially important to protect the blood vessels.
Previous infusions were mostly short-term intravenous indwelling needles, which are highly irritating to the vessels and require repeated punctures, and their long-term application can lead to difficulties such as poorly found vessels during puncture or unsuccessful punctures.
Patients receiving chemotherapy are now more likely to undergo deep venous cannulation, with the end of the catheter reaching directly into large vessels such as the superior vena cava, which can reduce or avoid irritation of the peripheral vasculature.
During chemotherapy to minimize peripheral infusion of vascular irritant fluids, close observation is required during the application.