Flow Diversion
Learn about flow diversion, a minimally invasive treatment for selected brain aneurysms in Singapore. Understand how flow diverters work, who may benefit and how personalised treatment is provided by Dr Manish Taneja at the Supreme Vascular and Interventional Clinic.
Flow Diversion in Singapore
A Minimally Invasive Treatment for Selected Brain Aneurysms
Flow diversion is an advanced neurointerventional treatment used to manage selected brain aneurysms that may not be suitable for conventional coiling or surgical clipping. Rather than filling the aneurysm with coils, a specialised flow-diverting stent is placed within the parent artery to redirect blood flow away from the aneurysm, allowing it to gradually heal over time.
At the Supreme Vascular and Interventional Clinic, flow diversion is performed as part of a comprehensive neurointerventional care pathway led by Dr. Manish Taneja, a dual-trained neurointerventional and peripheral vascular intervention specialist. From diagnosis and imaging through treatment planning, the procedure and long-term follow-up, patients receive specialist-led care under one roof.
Every brain aneurysm is unique. Our approach is to understand your individual condition, explain the available treatment options and recommend the most appropriate minimally invasive treatment based on your aneurysm's anatomy and your overall health.
Treatment Overview
| Treatment Type | Minimally invasive endovascular procedure |
|---|---|
| Also Known As | Flow diverter stent, flow diversion therapy |
| Used for | Selected wide-neck, large or complex brain aneurysms |
| Specialty | Neurointervention |
| Treatment goal | Redirect blood flow away from the aneurysm to promote natural healing while preserving blood flow through the parent artery |
| How it works | A specialised flow-diverting stent is placed inside the parent artery to reduce blood flow into the aneurysm |
| Procedure Access | Catheter inserted through the wrist or groin |
| Anaesthesia | Usually performed under general anaesthesia |
| Follow-Up | Regular clinical review and imaging are important to monitor healing |
| Performed By | Dr Manish Taneja, dual-trained neurointerventional and peripheral vascular intervention specialist |
What Is Flow Diversion?
Flow diversion is a specialised endovascular treatment that works differently from conventional coiling techniques.
Instead of placing coils inside the aneurysm, a fine mesh flow-diverting stent is positioned within the parent artery across the neck of the aneurysm. The device redirects blood flow away from the aneurysm while maintaining circulation through the main artery.
Over time, the reduced blood flow encourages the aneurysm to clot naturally and gradually seal off. As the artery heals, new tissue grows across the flow diverter, reconstructing the blood vessel and reducing the risk of future aneurysm filling.
This approach allows selected aneurysms to be treated without placing coils inside the aneurysm itself.
When Might Flow Diversion Be Recommended?
Diagnosing Brain and Neurovascular Conditions
Flow diversion may be considered for selected aneurysms that are unlikely to be effectively treated with standard coiling techniques alone.
Your specialist may recommend flow diversion for:
- Wide-neck brain aneurysms
- Large or giant brain aneurysms
- Complex aneurysm anatomy
- Selected recurrent aneurysms
- Aneurysms where long-term vessel reconstruction is preferred
Whether flow diversion is appropriate depends on detailed imaging, the aneurysm's characteristics and your overall health.
Alternative treatment options may include endovascular coiling, balloon-assisted coiling, stent-assisted coiling or surgical clipping.
Dive Deeper
- Endovascular Coiling Treatment
- Balloon-Assisted Coiling Treatment
- Stent-Assisted Coiling Treatment
Why Is Treatment Planning So Important?
Choosing the Right Treatment for Your Brain Aneurysm
Not every brain aneurysm is suitable for flow diversion. Your specialist will carefully assess:
- The aneurysm's size and location
- Neck width and blood vessel anatomy
- Whether the aneurysm has ruptured
- Your overall health
- The potential benefits and limitations of each treatment option
At the Supreme Vascular and Interventional Clinic, treatment recommendations are based on advanced imaging, evidence-based practice and shared decision-making to ensure every patient receives personalised care.
How Does Flow Diversion Work?
Redirecting Blood Flow to Help the Artery Heal Naturally
Flow diversion is performed using advanced image-guided techniques that allow specialists to treat selected brain aneurysms through the blood vessels without the need for open brain surgery. During the procedure, a thin catheter is carefully guided through the blood vessels to the affected artery in the brain. A specialised flow-diverting stent is then positioned across the neck of the aneurysm within the parent artery.
Unlike endovascular coiling, which places platinum coils inside the aneurysm, flow diversion works by redirecting blood flow away from the aneurysm. As less blood enters the aneurysm, it gradually clots and seals off over time while the parent artery remains open.
The flow diverter also acts as a scaffold for the artery to heal. Over the following months, new tissue grows across the device, reconstructing the blood vessel and separating the aneurysm from the normal circulation.
Throughout the procedure, advanced imaging technology is used to guide precise placement of the flow diverter and confirm the treatment result before the procedure is completed.
For selected patients, flow diversion offers an effective minimally invasive treatment for aneurysms that may not be suitable for standard coiling techniques. Your specialist will determine whether flow diversion is the most appropriate treatment based on the aneurysm's size, shape, location and surrounding blood vessel anatomy.
Key Difference: Unlike endovascular coiling, which fills the aneurysm with platinum coils, flow diversion treats the parent artery by redirecting blood flow away from the aneurysm. Over time, this allows the aneurysm to seal naturally while the artery heals.
Flow Diversion vs Other Brain Aneurysm Treatments
Flow Diversion vs Other Brain Aneurysm Treatments
| Treatment | Primary Approach |
|---|---|
| Endovascular Coiling | Places platinum coils inside the aneurysm to seal it from circulation. |
| Balloon-Assisted Coiling | Uses a temporary balloon to support coil placement for selected aneurysms. |
| Stent-Assisted Coiling | Uses a permanent stent to support coil placement within the aneurysm. |
| Flow Diversion | Redirects blood flow away from the aneurysm, allowing the artery to heal over time. |
| Surgical Clipping | Places a surgical clip across the aneurysm through open brain surgery. |
Why Choose the Supreme Vascular and Interventional Clinic for Flow Diversion?
Specialist Neurointerventional Care from Diagnosis to Recovery
Choosing where to receive treatment is an important decision.
At the Supreme Vascular and Interventional Clinic, flow diversion is performed by Dr. Manish Taneja as part of a comprehensive neurointerventional care pathway.
Brain-to-Body Expertise
Benefit from specialist expertise treating vascular conditions affecting both the brain and body.
One Specialist Throughout Your Care
Receive continuity of care from consultation through follow-up with the same specialist.
Advanced Image-Guided Treatment
Every procedure is carefully planned using detailed imaging and performed with precision.
Continuum of Care
Ongoing follow-up and imaging reviews help monitor your recovery and the long-term healing of the treated artery.
Potential Benefits of Flow Diversion
A Different Approach to Treating Selected Brain AneurysmsA Different Approach to Treating Selected Brain Aneurysms
Flow diversion offers a different treatment strategy from endovascular coiling. Rather than filling the aneurysm with coils, it redirects blood flow away from the aneurysm, allowing the blood vessel to heal naturally over time.
Potential benefits may include:
Reconstructs the Parent Artery
The flow diverter supports healing of the affected blood vessel by encouraging new tissue to grow across the aneurysm neck.
Treats Selected Complex Aneurysms
Flow diversion may be suitable for selected wide-neck, large or complex aneurysms that can be challenging to treat with conventional coiling techniques.
Preserves Blood Flow
The device redirects blood flow away from the aneurysm while maintaining circulation through the parent artery and its important branches.
Promotes Natural Aneurysm Healing
By reducing blood flow into the aneurysm, the treatment encourages it to clot and gradually seal off over time.
It is important to remember: Every brain aneurysm is different. Flow diversion is recommended only when it is considered the most appropriate treatment following a detailed clinical assessment and imaging review.
What Are the Potential Risks and Limitations?
Understanding the Benefits and Risks of Treatment
Like all medical procedures, flow diversion carries potential risks. Before recommending treatment, your specialist will explain the expected benefits, possible risks and alternative treatment options.
Potential risks may include:
- Bleeding or bruising at the catheter insertion site
- Blood clot formation
- Blood vessel injury
- Rare reactions to contrast dye or medications
- The need for antiplatelet medication before and after treatment, as advised by your specialist
- A period of healing before the aneurysm is fully sealed
The level of risk varies depending on the aneurysm's anatomy, whether it has ruptured and your overall health.
At our specialised brain aneurysm clinic in Singapore, patient safety is supported through careful treatment planning, advanced imaging and specialist-led neurointerventional care.
Recovery After Flow Diversion
What Can You Expect After Treatment?
Recovery varies depending on your overall health, the complexity of the procedure and the characteristics of the aneurysm.
Following treatment, you will be monitored before being discharged or transferred for ongoing care if required.
Your specialist will provide personalised advice on:
- Caring for the catheter access site
- Taking prescribed antiplatelet medication
- Returning to normal activities
- Follow-up imaging and appointments
- Symptoms that require urgent medical attention
Because flow diversion works by promoting gradual healing of the artery, regular follow-up imaging is an important part of monitoring your treatment outcome. If no immediate side effects occurs during the hospital stay, patients can typically go home within a couple of days (often the next day) and return to daily life. Most patients have a quick recovery and are able to resume their regular daily routine within one week.
Dive Deeper
- Brain Aneurysm Flow Diversion with Stents
Continuum of Care at the Supreme Vascular and Interventional Clinic
Supporting You Before, During and After Treatment
At the Supreme Vascular and Interventional Clinic, flow diversion is delivered as part of a comprehensive neurointerventional care pathway led by Dr. Manish Taneja.
From consultation and diagnostic imaging to treatment planning, the procedure and long-term follow-up, your care is managed by the same specialist.
This continuity supports personalised treatment decisions, consistent follow-up and ongoing monitoring as your artery heals over time.
Whether you are a Singapore resident or an international patient, our commitment is to provide compassionate, evidence-based care using advanced minimally invasive neurointerventional techniques.
How the Artery Heals After Flow Diversion
Unlike endovascular coiling, flow diversion works gradually by redirecting blood flow away from the aneurysm and allowing the parent artery to heal over time.
| Time | What Happens |
|---|---|
| Procedure Day | Flow diverter is placed. |
| Weeks | Blood flow into the aneurysm progressively reduces. |
| Months | The aneurysm continues to seal while the artery heals. |
| Follow-Up | Imaging confirms the treatment outcome. |
Your Flow Diversion Treatment Journey
| Step | Stage | Description |
|---|---|---|
| 1 | Specialist Consultation & Assessment | Review your diagnosis, symptoms and brain imaging with Dr Manish Taneja. |
| 2 | Imaging Review & Treatment Planning | Assess aneurysm anatomy to determine whether flow diversion is appropriate. |
| 3 | Flow Diversion Procedure | Place a specialised flow-diverting stent using minimally invasive techniques. |
| 4 | Recovery & Monitoring | Receive personalised recovery guidance and post-procedure monitoring. |
| 5 | Follow-Up & Continuum of Care | Continue specialist reviews and imaging as the artery heals over time. |
Frequently Asked Questions
How is flow diversion different from endovascular coiling?
Flow diversion treats the parent artery by redirecting blood flow away from the aneurysm, allowing it to heal naturally over time. Endovascular coiling treats the aneurysm directly by placing platinum coils inside it to reduce blood flow.
Does the flow diverter remain in the artery?
Yes. The flow diverter is a permanent implant that remains within the parent artery and acts as a scaffold while the blood vessel heals.
How long does it take for a brain aneurysm to heal after flow diversion?
Healing occurs gradually over weeks to months. Follow-up imaging is used to monitor how the aneurysm is responding to treatment and to assess the healing of the parent artery.
Will I need medication after flow diversion?
Most patients require antiplatelet medication before and after the procedure to help reduce the risk of blood clots forming around the flow diverter and to keep the stent clear. Your specialist will advise you on the appropriate medication plan.
Is flow diversion suitable for every brain aneurysm?
Flow diversion is recommended only for selected aneurysms based on their size, shape, location and blood vessel anatomy. Your specialist will determine the most appropriate treatment after reviewing your imaging and clinical condition.
Who performs flow diversion at the Supreme Vascular and Interventional Clinic?
Flow diversion is performed by Dr. Manish Taneja, a dual-trained neurointerventional and peripheral vascular intervention specialist with expertise in minimally invasive treatments for vascular conditions affecting both the brain and body.
Specialist Assessment for Flow Diversion in Singapore
Every brain aneurysm requires an individualised assessment to determine the most appropriate treatment approach. At the Supreme Vascular and Interventional Clinic, Dr Manish Taneja provides comprehensive evaluation, advanced imaging review and personalised treatment planning to help patients understand their diagnosis and treatment options.
Whether you have been newly diagnosed, referred for treatment or are seeking a second opinion, we are committed to providing compassionate, specialist-led care from consultation through recovery.
- Brain Aneurysm
- Wide-Neck Brain Aneurysm
- Large-Neck Brain Aneurysm
- Complex Brain Aneurysm
