Mary Gets World's Smallest Pacemaker


Mary Mitchell is a woman of faith, family and a strong will. The 80-year-old Newton mother of nine knows a lot about healthcare not only from being her children’s caregiver, but also from caring for her father who lived to be 107 and then caring for her husband Charles who passed away in 2014 after 61 years of marriage.

About six months later, Mary’s own health began to decline. She was diagnosed with cancer in her right breast and underwent a lumpectomy, chemotherapy and radiation. The cancer then spread to her throat, lymph nodes and uterus. While anesthetized during emergency gall bladder surgery she was diagnosed with atrial fibrillation (AFIB) - a quivering or irregular heartbeat that can lead to blood clots, stroke, heart failure and other complications. Medications were not successful at controlling the AFIB and Mary recently learned that she faces more radiation and chemotherapy because the cancer in her breast has recurred. These treatments require her to get a port placed in her breast in the same area where a traditional pacemaker would be implanted to regulate her heart rate. Also, the lead wires used with traditional pacemakers would interfere with the radiation.

Fixing a Heart Problem

Given Mary’s unique conditions, Dr. Patrick Whalen, an electrophysiologist with Catawba Valley Cardiology and director of cardiac electrophysiology at Wake Forest Baptist Medical Center elected to use a new approach. On January 18, he implanted a Medtronic Micra Transcatheter Pacing System in Mary’s heart during a minimally invasive procedure at Catawba Valley Medical Center (CVMC), making her the first patient in the Hickory area to receive the innovative device.

Dr. Whalen says, “Considered the world’s smallest pacemaker, the Micra was attached directly into Mary’s heart through a catheter inserted in the femoral vein located in her upper thigh and pelvic region.”

At less than one-10 th the size of a standard pacemaker, the Micra is about the size of a large vitamin pill. Dr. Whalen explained that, because of its positioning within the heart, the miniaturized self-contained pacemaker won’t interfere with Mary’s cancer treatments while addressing her AFIB by delivering electrical pulses to pace her heart. The Micra is wireless so there are no lead wires to interfere with radiation. The device weighs two grams, has an estimated 12-year battery life and is cosmetically invisible after implantation. The Micra was approved by the U.S. Food and Drug Administration (FDA) in April 2016.

Although throat cancer damaged Mary’s vocal chords, her daughters Becky Cazire and Sherry Hill make sure she still has a voice. Following their mother’s example, they have become well-informed advocates to ensure she receives the best care she can get. Mary lives with Becky and both daughters tag team to provide round-the-clock care. They accompany her to medical appointments, keep up with her medications, document details about her procedures and provide details during doctor’s visits to make sure all providers are aware of her symptoms and what’s going on across the continuum of care.

Hill says, “Our mother taught us that some doctors seem to ‘write off’ people when they reach a certain age or have a complicated condition. We are so thankful for Dr. Whalen and the solution he offered here at CVMC.”

For more information about Catawba Valley Cardiology located at 3521 Graystone Place SE STE 202
Conover, NC 28613, patients may call 828.326.2354.

Categories