Expert Cardiac Catheterization: Diagnosis and Treatment for Heart Conditions
Minimally invasive cardiac catheterization performed by CVG’s board-certified interventional cardiologists across 11 Gwinnett County and Atlanta metro locations .
Cardiac catheterization is one of the most important diagnostic and interventional procedures in cardiovascular medicine. It allows CVG’s interventional cardiologists to look directly inside the arteries supplying blood to your heart, measure pressures within the heart and lungs, and, when needed, treat blockages on the spot using balloon angioplasty or stenting.
If you’ve been told you need a cardiac catheterization, it’s natural to have questions. This page covers everything you need to know: what the procedure involves, why it’s performed, what to expect during your visit and recovery, and how CVG’s cardiac team will guide you through every step.
At CVG, we treat the whole person, not just a heart condition. Our goal is to make sure you feel informed, prepared, and confident before you arrive.
Who Needs a Cardiac Catheterization?
Your CVG cardiologist may recommend cardiac catheterization if you are experiencing symptoms or have test results that suggest a problem with your heart’s arteries or function. Common reasons a cardiac catheterization is ordered include:
- Chest pain (angina) that has not responded to medication or is getting worse
- Abnormal results from a stress test, echocardiogram, or EKG suggesting reduced blood flow
- A recent or suspected heart attack requiring immediate evaluation and treatment
- Heart valve disease requiring pressure measurements to guide treatment decisions
- Unexplained shortness of breath, fatigue, or reduced exercise tolerance
- Evaluation before heart surgery to assess the coronary arteries
- High blood pressure in the arteries of the lungs (pulmonary hypertension)
- An enlarged heart or symptoms of heart failure requiring further workup
Cardiac catheterization provides information that non-invasive tests cannot, and in many cases allows your cardiologist to diagnose and treat the problem in a single procedure.
How Cardiac Catheterization Works
During cardiac catheterization, a thin, flexible tube called a catheter is inserted through a small access point, typically in the wrist (radial approach) or groin (femoral approach), and guided through the blood vessels to the heart.
Using real-time X-ray imaging called fluoroscopy, your CVG interventional cardiologist can visualize the inside of your coronary arteries, measure pressures within your heart chambers and lungs, and assess blood flow to identify any blockages or abnormalities.
If a significant blockage is found, your cardiologist can often treat it during the same procedure, opening the narrowed artery with a balloon (angioplasty) and placing a small metal stent to keep it open. This eliminates the need for a separate procedure in many cases.
What Happens During a Cardiac Catheterization at CVG
Coronary Angiography: Coronary angiography is the most common application of cardiac catheterization. A contrast dye is injected through the catheter into the coronary arteries, making them visible under X-ray. This allows your cardiologist to clearly see any narrowing or blockages affecting blood flow to your heart, providing the diagnostic information needed to determine your best treatment path.
Balloon Angioplasty: If a significant blockage is identified during angiography, your cardiologist may perform balloon angioplasty during the same procedure. A small balloon at the tip of the catheter is inflated at the site of the blockage, compressing the plaque against the artery wall and restoring normal blood flow.
Coronary Stenting: In most cases, balloon angioplasty is followed by the placement of a coronary stent, a small, expandable metal mesh tube that holds the artery open after the balloon is removed. Modern drug-eluting stents are coated with medication to reduce the risk of the artery re-narrowing over time.
Cardiac Catheterization Recovery — What to Expect
Most patients recover from cardiac catheterization within a week or less. Here is what to expect during your recovery:
Immediately After the Procedure: You will spend two to four hours in a monitored recovery area after your cardiac catheterization. If the procedure was performed through the groin artery, you will need to lie flat during this time while the access site is sealed. If the procedure was performed through the wrist, a compression band will be applied to the access site. Most patients who undergo a diagnostic-only catheterization are discharged the same day. If a stent was placed or complications arise, an overnight stay may be required.
The First Few Days: Mild soreness, bruising, or a small lump at the catheter access site is common and typically resolves within a few days. Avoid driving, heavy lifting, and strenuous activity for at least 48 hours after your procedure. Your CVG cardiologist will provide specific post-procedure instructions and medication guidance at discharge.
When to Call Your Doctor: Contact your CVG cardiologist promptly if you experience significant bleeding or swelling at the access site, a rapidly growing lump, chest pain, shortness of breath, or any signs of infection such as redness, warmth, or fever. If you experience symptoms of stroke, sudden weakness, vision changes, or difficulty speaking, call 911 immediately.
Full Recovery: Most patients return to normal daily activities within one week. Your cardiologist will schedule a follow-up appointment to review your results and discuss next steps for your care.
Why Choose CVG for Cardiac Catheterization
Cardiac catheterization requires precision, experience, and the right technology, and CVG’s interventional cardiology team delivers all three. Our board-certified interventional cardiologists perform diagnostic and interventional cardiac catheterizations with a focus on accuracy, patient safety, and same-procedure treatment whenever possible.
With 11 locations across Gwinnett County and the Atlanta metro, access to expert interventional cardiology care has never been more convenient. CVG has been caring for Georgia patients’ hearts since 1982, and we’re here to guide you through every step of your cardiac catheterization, from your first consultation to your follow-up care.
Frequently Asked Questions
Your doctor may order a cardiac catheterization for several reasons:
- To determine whether there are blockages in the arteries that supply blood to the heart
- To measure the pressures in the heart and lungs
- To assess pressure differences across the heart valves
The procedure is performed in a hospital setting and typically takes about 30–60 minutes; however, preparation and recovery time can take several additional hours. In some cases, the patient may need to stay in the hospital overnight, either before or after the procedure. Following cardiac catheterization, the doctor will have a clearer understanding of the underlying problem and be able to determine the best treatment plan for the patient. Full recovery usually takes a week or less, depending on where the catheter was inserted. The patient must keep the insertion site clean during the recovery period.
The procedure is performed under conscious sedation, meaning you will receive medications to help you relax and manage pain. In addition, a local anesthetic will be administered to the access site, either the groin or the wrist. Due to the sedation, many people do not remember much of the procedure afterward.
The risk of complications for patients undergoing elective cardiac catheterization is low. The most common complications include bleeding or discomfort at the access site, either in the groin or the wrist. Rarely, these bleeding complications may require a blood transfusion or surgery to repair the artery. Less common but more serious complications, such as stroke, heart attack, or even death, can occur. It is important to discuss these risks with your doctor.
Most procedures are performed to determine whether there are significant blockages in the arteries that supply blood to your heart. If your doctor finds a severe blockage, they may open it using a balloon and insert a stent, a small metal tube designed to keep the artery open. If multiple severe blockages are found, your doctor may recommend coronary bypass surgery.
After a cardiac catheterization, most patients spend a few hours in the recovery unit. If the procedure involved the large artery in the groin, a device or stitch may have been used to seal the hole, requiring the patient to lie flat for a couple of hours. If a tube was removed from the groin, the patient may need to lie flat for around 4 hours post-procedure. Avoid driving or lifting heavy objects for a few days afterward.
For procedures performed via the small wrist artery, a band is used to apply pressure to the artery. Some discomfort at the access site and mild bruising may occur in the days following the procedure. Notify your doctor if a lump forms at the site or if there is significant bleeding, as immediate medical attention may be necessary.