The Simmons-lock technique: a simple solution for stable left gastric artery engagement

Area of Science:

• Interventional Radiology
• Vascular Surgery
• Gastroenterology

Background:

• Catheterization of the left gastric artery (LGA) presents challenges due to vessel tortuosity and acute angulations.
• These anatomical challenges often lead to catheter instability, hindering successful interventions.

Purpose of the Study:

• To introduce and describe the novel Simmons (SIM)-lock technique for improved left gastric artery (LGA) catheterization.
• To demonstrate how this technique enhances catheter stability and facilitates interventions.

Main Methods:

• The Simmons (SIM)-lock technique utilizes a standard 5-Fr SIM-1 catheter and a coaxial microcatheter.
• A microcatheter is advanced distally to act as an anchor, enabling deep seating of the SIM-1 catheter in the celiac trunk.
• Controlled pullback of the SIM-1 catheter allows its tip to lock into the LGA ostium.

Main Results:

• The SIM-lock technique transforms unstable catheter engagement into a controlled, stepwise procedure.
• This method provides a stable platform for interventions within the LGA.
• The technique employs standard, cost-effective equipment, making it widely accessible.

Conclusions:

• The Simmons (SIM)-lock technique offers a reliable solution for challenging left gastric artery catheterizations.
• This approach enhances procedural safety and efficacy by ensuring catheter stability.
• It represents a valuable advancement in interventional radiology for gastrointestinal procedures.