The catheter will be removed and the groin puncture
site will be compressed for 15 minutes until the bleeding stops. A compressive bandage will then be applied. You will be brought back to your assigned bed where you will need to lie flat on your back for about 6 hours until your doctor confirms that you are fit to leave the bed. LEVEL 3 TTSH MEDICAL CENTRE However, if the procedure was done through the • The Cardiac Centre wrist, the catheter will be removed immediately • Clinic 3A (Cardiology, Cardiac Ambulatory Services, after the procedure followed by the application of a Cardiac Rehabilitation Gym) compressive bandage around the wrist. You will be Department of • Clinic 3B (The Heart Atrium, Cardiac Imaging Centre) monitored for 4 hours and can be discharged on the CARDIOLOGY same day. LEVEL 3 EMERGENCY (A&E) BLOCK Inform Your Doctor On: • Invasive Cardiac Laboratory Coronary Angiography and 1. Any allergies, particularly to iodine, X-ray contrast medium and pain-relieving medications. CONTACT: Left Ventriculography 2. If you are suffering from diabetes and taking a 6537 7000 (All Appointments) medication called Metformin. You will need to stop this medication for at least 2 days before and after the angiography.
What are the Potential Risks? T TSH LOGO & HARMONISED HOUSE BRANDS
Coronary angiography is generally safe. However
some potential risks include: • Minor complications such as bleeding, swelling and bruising from the puncture site and allergic Scan the QR Code with your smart phone reaction to the contrast medium. to access the information online or visit T TSH LOGO MARK • Very rare major complications such as heart attack, https://www.ttsh.com.sg/Patients-and-Visitors/ stroke or death during the procedure. Medical-Services/Cardiology/Pages/default.aspx
T TSH – HARMONISED HOUSE BRANDS PECC-CVM-ED-2018-113-v3
Pantone 187C Pantone Cool Gray 9C C:7 M:100 Y:82 K:26 C:30 M:22 Y:17 K:57 R:166 G:25 B:46 R:117 G:120 B:123 HEX #a6192e HEX #75787b What is Coronary Angiography and Why do I Need a Coronary Angiography Left Ventriculography? and/or Left Ventriculography? Coronary angiography, also known as cardiac Coronary or heart arteries supply blood to the heart catheterisation, is a procedure performed to visualise muscle to maintain its vital function. Narrowing of the the coronary arteries which are blood vessels that coronary artery occurs when fatty deposits accumulate supply blood to the heart. It is the gold standard to on the arterial wall in a medical condition called diagnose coronary artery disease. The procedure atherosclerosis. involves the injection of a contrast material (commonly known as a dye) into the blood vessel through a small Atherosclerosis can cause the following symptoms: tube or catheter inserted into a large artery in the left • Chest pain or right groin or wrist. Digital images of the heart’s • Breathlessness • Irregular heart rhythm blood vessels will then be recorded using special X-ray • Fatigue cameras.
If left undetected, these blockages of the coronary
Often, another procedure called the left arteries can cause serious health threats such as heart ventriculography is performed at the same session, attacks or even sudden death. whereby the inserted catheter is placed into the left ventricle and the contrast medium is injected. done. A small tube or cannula will be inserted in Coronary angiography is carried out: This allows visualisation of the left ventricle and its one of the veins of your hand to administer the • To determine whether any significant narrowing or contraction. blockage is present in the coronary arteries medication. Hair on your groin and upper thigh may • To determine the best form of treatment be shaved. You will need to sign a consent form The procedure is performed in Tan Tock Seng • Before coronary angioplasty (balloon procedure), to after your doctor has explained the indications and Hospital’s Invasive Cardiac Catheterization Laboratory provide a “road-map” for guiding the angioplasty risks of the procedure to you. under local anaesthesia. procedure During the Procedure You will be brought into the laboratory where you Injection of Dye Into the Coronary Arteries will be placed on a movable table equipped with Aorta X-ray cameras and heart monitors. A nurse will clean your groins or wrists depending on the access site, Catheter then cover you with a sterile drape.
The initial injection of local anaesthetic that is done
under the skin can be slightly uncomfortable but Coronary Right coronary artery Coronary Arteries Left coronary artery the subsequent insertion of catheter(s) should not Arteries be painful. Inform the doctors or nurses of any What can I Expect for the Procedure? discomfort encountered during the procedure. You may experience a harmless warm sensation in your Before the Procedure body during the left ventriculography, which will last Routine investigations, including blood tests, an no longer than 1 minute. The procedure normally takes about 15 to 30 minutes. electrocardiogram (ECG) and a chest X-ray will be