Coronary angiography
Coronary Angiography
Coronary angiography, also known as cardiac catheterization, is a procedure in which a catheter is inserted through a small incision in the groin, wrist, or arm and advanced to the coronary arteries. Contrast dye is then injected, followed by X-ray imaging to visualize the coronary arteries and assess for any narrowing or blockages.
What is the purpose?
Coronary angiography is an important diagnostic procedure to evaluate the coronary arteries. A small catheter is inserted through a blood vessel, usually via the groin, elbow crease, or wrist, and advanced to the coronary arteries. Contrast dye is injected through the catheter to visualize the coronary arteries under X-ray imaging, allowing doctors to observe and record blood flow and the path of the coronary arteries. This helps in accurate diagnosis and planning appropriate treatment for coronary artery disease.
When should it be done?
- Recommended for individuals experiencing severe chest tightness, shortness of breath, fatigue, excessive sweating, palpitations, pale or darkened face, or pain radiating to the arm, shoulder, or jaw.
- Also recommended for those with risk factors such as diabetes, high blood pressure, high cholesterol, obesity, smoking, or a family history of heart disease, as well as those with abnormal results from other tests like ECG or Echo.
What is the procedure like?
- Patients are advised to fast for about 6 hours. Nurses will clean and prepare the wrist or groin area, administer local anesthesia at the catheter insertion site, then gradually advance the catheter and guidewire into the coronary arteries.
- Patients may feel slight discomfort during the procedure but generally do not experience pain. After the catheter is removed, pressure is applied to the insertion site to stop bleeding for about 30–60 minutes.
After coronary angiography
- The doctor will explain the results to the patient and family. If mild coronary artery narrowing is found, medication may be recommended. In cases of significant narrowing, treatment may involve balloon angioplasty and stent placement or coronary bypass surgery.
- In many cases, treatment can begin immediately after the procedure, which takes about 45 minutes to 1 hour. For patients with severe or multiple blockages, surgery may be scheduled later.
Self-care after the procedure
- Avoid bending the arm or leg at the catheter insertion site for 4–6 hours. If the catheter was inserted via the groin, a pressure bandage may be applied. If a leg compression device is used, patients should lie flat for at least 6 hours.
- Recovery and discharge: If there are no complications, patients can usually go home within 4–6 hours. After balloon angioplasty, discharge may be the next morning with normal wound care.
- Seek medical attention immediately if there is severe swelling, intense pain at the insertion site, or chest tightness that prevents lying flat.
- Get adequate rest, avoid strenuous activities, and refrain from heavy use of the arm or leg on the catheter side for about 1 week.
- Take medications as prescribed and attend all follow-up appointments. If any abnormal symptoms occur, consult a doctor before the scheduled visit.
Heart care at Phyathai Sriracha Hospital
The Heart Center at Phyathai Sriracha Hospital has cardiology specialists providing comprehensive heart disease care 24 hours a day. The center is equipped to handle heart attack patients promptly, with an average response time of 25 minutes, meeting international standards for life-saving treatment. Receiving treatment within the first 90 minutes significantly improves survival chances. The medical team closely monitors patients throughout recovery until they return to normal condition.
Reference :
Independent Writer
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