Same-day duplex ultrasound
Painless, radiation-free imaging that confirms or rules out a clot within minutes.
Specialist service
DVT Diagnosis & Care
Catch the clot. Protect the leg. Prevent the lung.
A deep-vein thrombosis (DVT) is a clot in one of the body's deep veins — most often in the calf or thigh. Untreated, it can damage the leg permanently or break loose and cause a pulmonary embolism. Treated promptly, most patients recover fully. We offer same-day ultrasound, immediate anticoagulation when indicated, and structured follow-up to prevent recurrence.
Board-certified team Same-day results < 2h walk-in to diagnosis
< 2h
Walk-in to diagnosis
> 95%
Treated as outpatients
3–6 mo
Typical anticoagulation
0
Routine LMWH injections
At a glance
What your visit looks like
No surprises — here's exactly what to expect, in time, anaesthesia and follow-up.
Walk-in to scan
Under 60 minutes
Duplex ultrasound
20 minutes
Anaesthesia
None for diagnosis
Treatment start
Immediate, oral
Hospital stay
Outpatient in > 95%
Follow-up scan
3 and 6 months
Who this is for
You'll benefit if…
- New unilateral leg swelling, pain or warmth
- Recent surgery, immobilisation, long flight or hospitalisation
- Personal or family history of clotting disorders
- Cancer-associated thrombosis
- Suspected post-thrombotic syndrome after a previous DVT
Conditions we treat
Common reasons patients are referred
- Varicose veins and chronic venous insufficiency
- Deep-vein thrombosis (DVT)
- Peripheral artery disease (PAD)
- Carotid artery disease
- Lymphoedema co-management
- Non-healing leg ulcers
What we offer
Procedures and assessments
A focused, high-volume set of procedures — performed often and performed well, by the same senior team every time.
D-dimer and thrombophilia workup
Bloodwork to assess clot burden and screen for inherited or acquired clotting tendencies.
Outpatient anticoagulation
Most DVTs are now managed safely at home with direct oral anticoagulants — no injections required for most patients.
Catheter-directed thrombolysis
For large iliofemoral clots in young, active patients — a catheter delivers clot-dissolving medication directly to the thrombus.
IVC filter placement & retrieval
Reserved for patients who cannot tolerate anticoagulation; always with a planned retrieval date.
Technology
The tools we use, by name
The equipment behind this specific service — chosen because precise tools support precise decisions.
- Philips Affiniti 70 duplex ultrasound
High-frequency probes optimised for whole-leg vein compression studies.
- D-dimer point-of-care assay
Lab-grade result in under 15 minutes — speeds the rule-out pathway.
- Direct oral anticoagulants (DOACs)
Apixaban, rivaroxaban and edoxaban — once- or twice-daily tablets, no monitoring.
- AngioJet & EKOS thrombolysis
Mechanical and ultrasound-assisted catheter thrombolysis for severe iliofemoral DVT.
Your journey
From first call to follow-through
1
Same-day assessment
Walk-in evaluation, ultrasound and treatment plan in a single visit — usually under two hours.
2
Treatment
Anticoagulation is started immediately if a DVT is confirmed. Most patients go home the same day.
3
Structured follow-up
Reviews at 3 and 6 months to assess clot resolution, recurrence risk and duration of therapy.
How to prepare
- Come in straight away if you have new one-sided leg swelling, pain or warmth.
- Bring all current medications — especially anything that affects bleeding.
- Tell us about recent surgery, long flights, pregnancy or hormone therapy.
- Do not bandage or massage the leg before you are seen.
- If you are already on a blood thinner, do not stop it — bring the prescription with you.
Recovery & aftercare
- Written DOAC plan
Dose, duration, do's and don'ts on a single page you keep on the fridge.
- Compression therapy
Class II stocking on the affected leg for 6 months reduces post-thrombotic syndrome by half.
- Recurrence-risk score
We recalculate your HERDOO2 / Vienna score at month 3 to decide on extended treatment.
- Thrombophilia screening
Only when it changes management — never as a reflex; explained in detail before any blood draw.
"I walked in scared, walked out two hours later with a tablet, a plan and my cardiologist's WhatsApp. I never needed the ER."
B. Cao
Patient, 39
FAQs
Questions patients ask us
If yours isn't here, ask our team — we love a good question.
Do I need to be admitted to hospital?+
Most patients are now treated entirely as outpatients. Hospital admission is reserved for very large clots or unstable patients.
How long will I be on blood thinners?+
Typically 3–6 months — longer if the clot was unprovoked, recurrent or related to cancer. We reassess at every visit.
Can I exercise with a DVT?+
Gentle walking is encouraged from day one. We will guide you back to your usual activity safely.
Why CAVA
Care that is precise — and personal
The same standards apply to every service we offer.
- Board-certified specialists
Every study is read and every procedure performed by a fellowship-trained cardiologist or vascular surgeon — never an outsourced reader.
- Same-day diagnostics
ECG, echo and duplex ultrasound on-site, with results explained in plain language before you leave the clinic.
- Minimally invasive first
We default to wrist access, local anaesthesia and outpatient pathways — so most patients are home the same day.
- Continuity of care
One named cardiologist follows you from first visit through recovery. No revolving door, no repeated histories.
Safety
- Joint Commission International (JCI) aligned protocols
- ESC, AHA and ACC guideline-based care pathways
- Time-out checklists before every procedure
- Closed-loop medication reconciliation at every visit
Accreditations
- European Society of Cardiology — affiliated practice
- American College of Cardiology — institutional member
- Society for Cardiovascular Angiography & Interventions
- Vietnam National Heart Association — accredited training site
Fees & insurance
- Direct billing arrangements with most major local and international insurers.
- Transparent published fee schedule — written estimate before any procedure.
- Interest-free payment plans available for elective procedures.
- Dedicated insurance liaison who handles pre-authorisation on your behalf.
Visit the clinic
Open Mon–Fri 8:00–18:00, Sat 8:00–12:00. Same-day urgent slots reserved every morning.
Talk to a nurse
Speak to a clinical team member before you book. No call centres — real clinicians.
Book online
Choose a time that fits your week. Confirmation and pre-visit guidance arrive immediately.
Ready when you are
Book a visit, send us a question, or simply walk in. We'll take it from there — calmly, clearly, and at your pace.
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