What Is a Duplex Ultrasound? Vascular Surgeon Explains
Ultrasound gives the image, Doppler assesses blood flow, and duplex combines both. Dr Andrew Choong explains how vascular ultrasound investigates reflux, narrowed arteries and possible clots, what happens during the scan and how the findings guide care.
EVAR for Aortic Aneurysms: A Pipe Within a Pipe
EVAR uses a stent graft inside the aorta to treat a suitable aneurysm. Dr Andrew Choong explains the pipe-within-a-pipe idea, how suitability is assessed, the role of follow-up scans and why screening decisions should reflect individual risk.
Why Do Some Foot and Leg Wounds Not Heal?
A wound that is slow to heal may reflect poor arterial blood supply, venous reflux or other health factors. Dr Andrew Choong explains why foot and leg wounds need assessment beyond dressings, including warning signs requiring urgent help.
When Is Leg Swelling Not Just Water Retention? 2 of 2
Learn how duplex ultrasound helps assess venous swelling, why improvement with compression does not prove the cause, and when one-sided swelling needs urgent care.
When Is Leg Swelling Not Just Water Retention? 1 of 2
Swollen legs can reflect systemic illness, a local problem or venous reflux. Understanding the cause matters more than calling it water retention.
Why Varicose Veins Feel Worse at the End of the Day
Evening aching and heavy legs can reflect pressure building in veins with leaking valves. Learn how movement, assessment and ultrasound can help clarify the cause.
Arteries vs Veins: What’s the Difference?
Arteries supply blood and veins return it. Learn why walking pain, heaviness and swelling can point to different circulation problems.
Aortic Aneurysm Screening: Why Men Over 55 Should Know This
Aortic aneurysms may cause no symptoms. Learn how age, smoking and family history guide an individual discussion about abdominal ultrasound screening.
Varicose Veins Are Not Just Cosmetic
Varicose veins can reflect faulty valves and venous reflux, not just a change in appearance. Dr Andrew Choong explains aching, swelling and skin changes, how ultrasound helps, and when to seek a vascular assessment in Singapore.
Leg Pain When Walking? It Could Be Claudication | Dr Andrew Choong
Leg pain that repeatedly starts with walking and settles with rest may be claudication. Dr Andrew Choong explains three useful questions, how peripheral arterial disease is assessed and when circulation symptoms need urgent attention.
September is Vascular Disease Awareness Month | Signs & Symptoms
Leg pain when walking, swollen legs or slow-healing wounds can be signs of vascular disease. Dr Andrew Choong introduces the September vascular health series and explains when symptoms need assessment or urgent help.
What Is a Pulmonary Embolism? | Blood Clot Awareness Month | Video 4
A pulmonary embolism is a blood clot blocking an artery in the lungs, often after travelling from a DVT. Dr Andrew Choong explains warning symptoms, emergency assessment, anticoagulant treatment and when specialist clot removal may be considered.
What Is a DVT? Deep Vein Thrombosis Explained
Deep vein thrombosis is a clot in a deep vein, usually in the leg. Dr Andrew Choong explains the symptoms, its connection to pulmonary embolism, possible long-term effects, and how assessment and treatment are tailored to each patient.
Why Do Blood Clots Form? DVT & PE Risk Explained
Slow blood flow, a greater tendency to clot and vessel-lining injury can combine to cause DVT. Dr Andrew Choong explains Virchow's triad, common risk factors, sensible prevention discussions and symptoms that need urgent medical assessment.
What is a Blood Clot? | Singapore Vascular Surgeon
Blood clotting stops bleeding after injury, but a clot inside a vessel can obstruct circulation. Dr Andrew Choong explains DVT, pulmonary embolism and arterial clots, including the symptoms that require urgent or emergency assessment in Singapore.
Blood Clot Removal for DVT | Modern Treatment Explained
Catheter-based clot removal has expanded treatment options for selected people with DVT. Dr Andrew Choong explains anticoagulation, thrombolysis and thrombectomy, including how clinicians weigh benefits, risks and the need for follow-up.
World Diabetes Day 2025: Diabetes, Artery Health and Foot Care
Diabetes can affect circulation and foot sensation before obvious symptoms appear. Learn what vascular tests can show, why ABPI needs careful interpretation and when a foot problem needs urgent care.
World Stroke Day 2025: Carotid Artery Disease and Stroke Prevention
Learn how carotid artery disease can cause stroke, when surgery or stenting may be considered, and why FAST symptoms require an immediate 995 call in Singapore.
World Thrombosis Day: How DVT and Pulmonary Embolism Can Be Fatal
A clot in the leg can travel to the lungs and become life-threatening. Dr Andrew Choong explains DVT, pulmonary embolism, hospital-associated clot risk and the warning signs that need urgent attention.
Vascular Surgery in 60 Seconds: Aorta, Arteries and Veins Explained
What does a vascular surgeon do? Dr Andrew Choong explains the difference between arteries and veins, the conditions vascular surgeons treat, and why a circulation assessment does not automatically mean an operation.