Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Central line
Medically reviewed by Min Clinic Staff | Updated: January 2026
Central line: An infusion tube located in or near the heart, which is at the center of the circulatory system. For example, a Swan-Ganz catheter with its tip in the right atrium and ventricle of the heart is a central line.