Which catheter abbreviation stands for Amplatz Left, commonly used for engaging the left coronary system?

• A. AL (Amplatz Left)
• B. JL (Judkins Left)
• C. XB (Extra Backup)
• D. JR (Judkins Right)

Answer: (A)

Understanding catheter abbreviations helps you pick the shape that best aligns with the coronary ostia. Amplatz Left is abbreviated AL, and it refers to a catheter with a more pronounced curve that directs the tip upward toward the left coronary ostium. This design makes engaging the left coronary system easier in cases where the takeoff is high, the aorta is tortuous, or a Judkins catheters doesn’t align well. The AL curve can “hook” under the left ostium and provide stable engagement with good backup support for selective injections. By contrast, Judkins Left (JL) uses a different, less aggressive shape; Extra Backup (XB) emphasizes backup force for difficult vessels but is not the Amplatz Left; Judkins Right (JR) is for the right coronary system.