What is simple s-TAME? How does it differ from catheter-based C-TAME, and which areas are suitable for assessment?
What is simple s-TAME? How does it differ from catheter-based C-TAME, and which areas are suitable for assessment?
Article Summary
For recurring "old complaints" such as plantar fasciitis, trigger finger, and finger joint pain, if the effects of medication and rehabilitation have been limited, simple s-TAME is one of the options that can be discussed with your physician. This article explains what s-TAME is, how it differs from catheter-based C-TAME, and which areas and conditions are suitable for evaluation.
What is Simple s-TAME?
s-TAME is a simplified approach to microvascular embolization: under ultrasound guidance, embolization medication is delivered via injection to abnormally proliferating microvessels, causing these vessels to shrink. The goal is to reduce the source of pain signals and alleviate local inflammation. The entire process does not require placing a catheter in an artery, nor does it require the injection of contrast media.
Areas of chronic pain (such as chronically inflamed tendons or around joints) are often accompanied by abnormally proliferating microvessels and new nerve endings, which is one of the reasons for recurring pain. s-TAME addresses these abnormal vessels, which is identical to the catheter-based C-TAME; the difference between the two lies in the procedure, not the underlying principle.
What is the Difference Between s-TAME and Catheter-Based C-TAME?
The difference lies in the guidance method and the scope of application, not which one is better. C-TAME (Standard) performs selective embolization using microcatheters under the guidance of angiography equipment with cone-beam CT (3D tomography) capabilities, requiring the injection of contrast media during the procedure; the equipment used at He-Yi is the GE OEC 3D mobile C-arm. This approach can handle deeper areas with more complex vascular pathways. In contrast, s-TAME is completed via injection under ultrasound guidance without placing catheters or using contrast media. It is less invasive and suitable for superficial and extremity areas that can be seen via ultrasound.
In other words, the two are divided based on location and condition: deep or complex areas typically require C-TAME's catheter and 3D imaging; for superficial and extremity areas, s-TAME provides a simpler path. Furthermore, for individuals who are allergic to contrast media or have poor kidney function, s-TAME, which does not require contrast media, is an option that can be discussed with a doctor. Which one is actually suitable is determined by the doctor based on the pain location, imaging results, and physical condition.
Which Areas and Conditions are Suitable for s-TAME Assessment?
Common assessment areas are the superficial and extremity parts of the body: fingers, wrists, ankles, and soles. Common clinical examples include plantar fasciitis and long-term pain and swelling from degenerative arthritis of the fingers. For this type of recurring pain where conservative treatment effects are limited, a doctor can assess whether it is suitable to be treated with s-TAME.
Like all TAME treatments, s-TAME has specific indications and is not suitable for all chronic pain. Pain persisting for more than three months with limited effects from medication or rehabilitation is a common prerequisite for assessment. If you are currently taking anticoagulants or antiplatelet drugs, please proactively inform your doctor during the assessment.
How is the Treatment Performed? Is Hospitalization Required?
s-TAME is performed in an outpatient clinic under local anesthesia and completed via ultrasound-guided injection. Hospitalization is not required, and in most cases, patients can return home after the treatment. Since arterial puncture and catheter insertion are not required, post-operative hemostasis and care are relatively straightforward. The actual recovery status and subsequent activity restrictions will vary depending on the treatment area and individual circumstances, which the doctor will explain before the treatment.
Is Rehabilitation Needed After Treatment?
Rehabilitation is recommended. s-TAME addresses the component of abnormal blood vessels, but the recovery of joint range of motion and muscle strength still needs to be built through rehabilitation training, which also helps reduce the chance of recurring pain. After treatment, please arrange rehabilitation content according to the advice of your doctor and therapist, viewing s-TAME as one part of overall pain care.
How Do I Assess If I Am Suitable?
If your pain has persisted for more than three months, is located in areas like fingers, wrists, ankles, or soles, and the effects of medication and rehabilitation are limited, you can first carry out a preliminary assessment via LINE. Bring your past imaging data (X-ray, MRI, ultrasound) and treatment records during your clinic visit. After the doctor confirms the source of the pain, you can then discuss whether s-TAME, C-TAME, or other treatment methods are suitable.
Author: Dr. Ping-Sheng Lu
Professional Review: Dr. Ping-Sheng Lu 2026/07/25
Disclaimer: This article is for health education information and cannot replace a doctor's diagnosis and treatment advice. The suitability of any treatment must be determined by a doctor's assessment.
References:
Okuno Y, Korchi AM, Shinjo T, Kato S, Kaneko T. Midterm clinical outcomes and MR imaging changes after transcatheter arterial embolization as a treatment for mild to moderate radiographic knee osteoarthritis resistant to conservative treatment. J Vasc Interv Radiol. 2017;28(7):995–1002. (PubMed: 28365171)
