Percutaneous transhepatic portography in the dog

Area of Science:

• Veterinary Medicine
• Interventional Radiology
• Vascular Access

Background:

• The portal vein is crucial for drug delivery and physiological studies.
• Repeated access to the canine portal vein is challenging.
• Existing methods may be invasive or lack reproducibility.

Purpose of the Study:

• To describe a simple and safe technique for repeated percutaneous catheterization of the portal vein or its tributaries.
• To establish a reproducible method for canine portal venous access.
• To facilitate research requiring repeated portal vein access in dogs.

Main Methods:

• A novel percutaneous technique was developed for catheter insertion.
• The procedure was performed in chronic dogs.
• Catheter placement in the portal vein or its tributaries was confirmed.

Main Results:

• The described technique proved to be simple and safe.
• Repeated catheterizations were successfully achieved.
• No significant complications were reported during the procedures.

Conclusions:

• This technique provides a safe and effective method for repeated percutaneous portal vein catheterization in dogs.
• It serves as a valuable tool for canine research requiring sustained portal venous access.
• The method enhances the feasibility of longitudinal studies involving the canine portal system.