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Hospital enhances electrophysiology lab with new technology

Media contact: Lisa Parro, senior public relations specialist, Adventist Midwest Health,

Glendale Heights – When Patrick Hogan’s heart began racing earlier this year, his mind instantly flashed back to the two other times in his life he’d experienced a rapid heartbeat coupled with feelings of dizziness and lightheadedness. In the past, doctors told the 31-year-old Glendale Heights resident that his rapid heart rate – 300 beats a minute compared to the normal rate of 60 to 90 beats a minute – was likely due to his working long hours, taking diet pills and drinking a lot of caffeine.


Hogan called 911 when it happened this time and was rushed to Adventist GlenOaks Hospital’s Shanahan Emergency and Trauma Center. He was then referred to Dr. John Beshai, medical director of cardiac electrophysiology at Adventist GlenOaks Hospital and associate professor of medicine, director of pacemaker and defibrillator services and program director of cardiac electrophysiology fellowship at the University of Chicago.


Beshai used the hospital’s three-dimensional EnSite Velocity mapping system to help locate the source of Hogan’s rapid heart rate and treat it with remarkable precision. Adventist GlenOaks Hospital’s Heart & Vascular Institute is one of only three hospitals in the entire Chicago area to offer EnSite Velocity.


“EnSite Velocity allows us to construct a three-dimensional anatomical model of the heart, which then can be used to identify where the ‘short circuit’ is coming from,” Beshai said. “At that point, radio frequency energy is applied to the source of the arrhythmia and eliminated.”


Beshai diagnosed Hogan with supraventricular tachycardia (SVT), a rapid heart rate originating from the atria, or the upper chambers of the heart.


“I felt like I was in a sports bar – not a hospital – because I was surrounded by so many flat-screen TVs,” Hogan joked. “But I knew the doctor had complete control and that was reassuring. It took only three hours for him to cut off the electrical signal that set my heart into overdrive.”


According to Beshai, the key to treating patients like Hogan is a correct diagnosis.


“SVTs are often misdiagnosed as panic attacks and the patient is placed on anti-anxiety medication and referred to a psychiatrist,” Beshai said. “SVTs can be treated at a 98 percent success rate – which is quite impressive.”


“Our investment in this next-generation technology is another example of Adventist GlenOaks Hospital’s commitment to improving patient care,” said Chief Executive Officer Brinsley Lewis.


To learn more about Adventist GlenOaks Hospital’s Heart & Vascular Institute, call 630-856-7525.


Adventist Midwest Health includes Adventist Bolingbrook Hospital, Adventist GlenOaks Hospital, Adventist Hinsdale Hospital and Adventist La Grange Memorial Hospital.  To find a physician, visit