Cardiac Catheterization for Children Q&A with Dr. John Thomson

Cardiac catheterization is a procedure in which a long, flexible tube (catheter) is put into a blood vessel. The doctor then guides the catheter into the heart to find and treat heart problems. Dr. John Thomson, interventional cardiologist, answers common questions about cardiac catheterization.

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Johns Hopkins Medicine

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John Thomson, MBBS

John Thomson, MBBS

Director, Cardiac Catheterization

Dr. Thomson is an interventional cardiologist at Johns Hopkins Children’s Center in Baltimore, Maryland. He serves as director of cardiac catheterization. He is part of the Blalock–Taussig–Thomas Pediatric and Congenital Heart Center. Dr. ...

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