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Interventional Cardiology

Our Services > Heart Care > Interventional Cardiology

The interventional cardiology program is dedicated to the non-surgical management of patients with cardiac and peripheral vascular disorders. Our physicians perform the following procedures:

  • Coronary angioplasty and stenting
  • Coronary angioscopy
  • Percutaneous clot removal for heart and vascular blockages
  • Peripheral arterial angioplasty and stenting
  • Renal artery stenting

These procedures are performed in the cardiac catheterization laboratory by a specialty trained cardiologist and cardiovascular team of nurses and technicians.

First, a cardiac catheterization is performed. After giving medication for relaxation and sedation, the doctor numbs the site with local anesthesia. Next, the doctor inserts a sheath (a thin plastic tube) into an artery usually in your groin. A long, narrow, hollow tube, called a catheter, is passed through the sheath and guided up the blood vessel to the arteries in your heart. A small amount of contrast material is injected through the catheter. The doctor can see the blood vessels, valves, and chambers on a TV screen.

An interventional procedure starts out in the same way as a diagnostic cardiac catheterization. Once the catheter engages the artery with the blockage, the doctor will perform the interventional procedure.

In balloon angioplasty, the cardiologist passes a tiny deflated balloon through the catheter to the vessel. The balloon is inflated to compress the plaque against the walls of the artery, flattening it out so that blood can once again flow through the vessel freely. In order to keep the artery open, cardiologists commonly employ a device called a coronary stent. This is an expandable metal mesh tube that is implanted during angioplasty at the site of the blockage. Once in place, the stent pushes against the wall of the artery to keep it open. The procedure usually lasts about 1 to 2 hours, but the preparation and recover time add several hours. Usually, you will stay overnight and return home the next day.

One of the principle indicators of quality in medicine is volume. Generally, those in the field of medicine who do more do it best. The fact that our interventional cardiologists conduct one of the busiest interventional coronary and peripheral vascular programs in the region is a testament to our high quality and excellent outcomes.

Need a Cardiologist?



Dr. Scott Black is a board certified interventional cardiologist and the founder of Advanced Cardiology of Texarkana, now Cardiology Specialists.  He graduated from the University of Arkansas for Medical Sciences in 1997.  He then completed a fellowship in interventional cardiology in 2000 at the Texas Heart Institute in Houston, Texas.  Dr. Black specializes in complex coronary interventions, including balloon angioplasty, stents, cardiac rhythm management, and intravascular ultrasound.  Dr. Black is also a fellow of the American College of Cardiology.  Dr. Black is a life long resident of Texarkana.  He and his wife, Melinda, have two children, Molly and Brooks.



Dr. Kevin Formes received his degree in medicine from the University of North Texas Health Science Center in Fort Worth in 2003.  His residency in Internal Medicine and Fellowship in Cardiology and Interventional Cardiology was completed at Plaza Medical Center in Fort Worth in 2010.  Dr. Formes was awarded Fellow of the Year for 2008-2009 and also served as Chief Cardiology Fellow.  He is Board Certified and is a member of the American College of Cardiology, American Osteopathic Association, Texas Osteopathic Medical Association, and the American Medical Association.  Dr. Formes specializes in invasive and interventional cardiology and peripheral vascular disease.  He and his wife, Laura Harland Formes, have three children:  Bladen, Kelin, and Morgan.


Dr. Poongodhai Ramachandran received her degree in medicine from the University of Madras in India in 1990.  Dr. Ramachandran is a board certified Invasive Cardiologist who specializes in the care of patients diagnosed with cardiovascular disease and promotes wellness through community education. She completed her residency at Mercy Hospital in Pittsburgh, Pennsylvania and her fellowship in Cardiovascular Diseases at the University of Pittsburgh Medical Center in Pittsburgh, Pennsylvania.  She is married to Sunil and they have two children, Anjali and Shalini.


Shannon Humphrey, ACNP graduated from Texarkana College School of Nursing with honors in 1998.  She later received her Bachelor of Science in Nursing from Texas A&M – Texarkana in 2003 and her Master of Nursing Science from the University of Arkansas for Medical Sciences in 2006 through the acute care nurse practitioner program.  She has specialized in cardiovascular disease management for over six years.  Shannon is nationally certified as an acute nurse practitioner by the American Nurses Credentialing Center and is also a member of the Sigma Theta Tau International Honor Society of Nursing.  She and her husband Clint have two sons, Jacob and Jared.