Meet Dr. Clayton Trimmer
Interventional Radiologist in Dallas

When a liver or kidney cancer patient wants or needs an alternative to surgery, interventional radiologist Clayton Trimmer, D.O., offers minimally invasive, image-guided techniques as an option.

These techniques include microwave ablation for liver cancer, and radiofrequency ablation and cryoablation for kidney cancer. Dr. Trimmer also was one of the first interventional radiologists to use a new ablation technique for kidney cancer called irreversible electroporation (IRE), also known as “NanoKnife,” now available at UT Southwestern.

Traditional ablation techniques use extreme heat or cold to kill tumors, inadvertently destroying some normal tissue surrounding the tumor. NanoKnife is a nonthermal ablation technique that can safely treat a tumor without harming the surrounding tissue. It uses electrical currents to puncture tiny holes in the tumor, destroying it.

“This is exciting because it gives us the ability to treat renal tumors in high-real estate areas, like when they are near arteries, veins, or nerves,” Dr. Trimmer says.

An Alternative to Surgery

As an interventional radiologist, Dr. Trimmer is part of a multidisciplinary team of cancer specialists who work together to determine the best treatment for each patient.

Interventional radiology techniques are not always the go-to treatment when traditional surgery can remove the tumor with a safe margin. But not all liver and kidney cancer patients are healthy enough for surgery. They may have comorbidities such as bleeding tendencies or heart problems. That’s when the surgeon or the patient may seek nonoperative management of the tumor.

The techniques Dr. Trimmer employs are delivered via a catheter or tube inserted into the skin. He uses imaging guidance to direct the treatment to the tumor, destroying it from inside the body.

“We can treat an area and see results fairly rapidly,” he says. “Our patients are often very sick, but they are happy with this type of treatment and appreciative of what we can do. I take pride in that.”