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Current Drug Delivery

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ISSN (Print): 1567-2018
ISSN (Online): 1875-5704

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Review Article

Convection-enhanced Diffusion: A Novel Tactics to Crack the BBB

Author(s): Meenakshi Dhanawat*, Garima, Kashish Wilson, Sumeet Gupta, Rishabh Chalotra and Nidhi Gupta

Volume 21, Issue 11, 2024

Published on: 24 January, 2024

Page: [1515 - 1528] Pages: 14

DOI: 10.2174/0115672018266501231207095127

Price: $65

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Abstract

Although the brain is very accessible to nutrition and oxygen, it can be difficult to deliver medications to malignant brain tumours. To get around some of these issues and enable the use of therapeutic pharmacological substances that wouldn't typically cross the blood-brain barrier (BBB), convection-enhanced delivery (CED) has been developed. It is a cutting-edge strategy that gets beyond the blood-brain barrier and enables targeted drug administration to treat different neurological conditions such as brain tumours, Parkinson's disease, and epilepsy. Utilizing pressure gradients to spread the medicine across the target area is the main idea behind this diffusion mechanism. Through one to several catheters positioned stereotactically directly within the tumour mass, around the tumour, or in the cavity created by the resection, drugs are given. This method can be used in a variety of drug classes, including traditional chemotherapeutics and cutting-edge investigational targeted medications by using positive-pressure techniques. The drug delivery volume must be optimized for an effective infusion while minimizing backflow, which causes side effects and lowers therapeutic efficacy. Therefore, this technique provides a promising approach for treating disorders of the central nervous system (CNS).

Keywords: Convection enhanced delivery, blood-brain delivery, central nervous system, catheter, neurological disorders, passive diffusion.

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