A new 2026 systematic review has compared endoscopic and traditional microscopic microvascular decompression (MVD) for trigeminal neuralgia. The results are encouraging in several areas, but they do not prove that one operation is now the better choice for every patient.
The paper, published online in the British Journal of Neurosurgery on 7 August 2026, brings together nine studies involving 1,205 patients. Of these, 556 underwent endoscopic MVD and 649 underwent microscopic MVD.
For people living with trigeminal neuralgia, the headline is important but the detail matters more. Initial pain relief was similar with both approaches. In the pooled studies, endoscopic MVD was associated with lower recurrence, shorter hospital stays, less facial numbness and fewer overall complications. It also took longer to perform. The authors are clear that randomised trials are still needed before any change in the surgical standard can be justified.
What is microvascular decompression?
Microvascular decompression is a major neurosurgical operation used for selected people with trigeminal neuralgia. The aim is to relieve pressure on the trigeminal nerve from a blood vessel without intentionally damaging the nerve.
In a traditional microscopic MVD, the surgeon works with an operating microscope. An endoscopic MVD uses a small camera to give a wider, angled view around the trigeminal nerve and nearby blood vessels. In theory, that wider field of view may help a surgeon identify areas of neurovascular contact that are difficult to see directly through a microscope.
That is the question behind this new review: does better visualisation translate into better outcomes for patients?
What did the researchers study?
The authors carried out a systematic review and meta-analysis using PubMed, Embase and Scopus and reported that the review followed PRISMA 2020 methods. Nine studies met their inclusion criteria.
Together they included 1,205 patients:
- 556 underwent endoscopic MVD
- 649 underwent microscopic MVD
The main outcomes were pain relief and recurrence. The researchers also compared operating time, length of hospital stay and complications. Risk of bias in the included studies was assessed using the Newcastle-Ottawa Scale.
What did the review find?
| Outcome | What the pooled evidence found |
|---|---|
| Initial pain relief | No statistically significant difference between endoscopic and microscopic MVD |
| Pain recurrence | Lower odds of recurrence in the endoscopic MVD group |
| Hospital stay | Shorter with endoscopic MVD in the pooled analysis |
| Operating time | Longer with endoscopic MVD |
| Facial numbness | Lower odds with endoscopic MVD |
| Overall complications | Lower odds with endoscopic MVD |
| Hearing loss | No significant difference |
| Facial paralysis | No significant difference |
For postoperative pain relief, the pooled odds ratio was 1.16, with a 95% confidence interval of 0.88 to 1.54. Because that confidence interval crosses 1, the review did not show a statistically significant difference in initial pain relief.
For recurrence, the pooled odds ratio was 0.58, with a 95% confidence interval of 0.37 to 0.93, favouring the endoscopic approach. Endoscopic MVD was also associated with lower odds of facial numbness and fewer complications overall.
These figures need careful interpretation. An odds ratio is not the same as saying that a certain percentage fewer patients will experience a complication or recurrence. The absolute risk for an individual patient depends on the underlying risk in the population studied and on many clinical factors.
Why are the findings interesting?
Microscopic MVD is an established operation, but the microscope has a fixed line of sight. An endoscope can provide panoramic and angled views of areas around the trigeminal nerve that may otherwise be difficult to inspect.
That could matter if a vessel is compressing the nerve in a position that is not immediately visible through the microscope. Better visualisation may also help the surgeon inspect the nerve more completely before deciding that the decompression is adequate.
The new review therefore gives a plausible reason why endoscopic techniques might influence recurrence or complications. But a plausible explanation is not the same as proof.
Why does this not settle the question?
This is where I think patients need the most careful explanation.
A meta-analysis can make the evidence stronger by bringing studies together, but it cannot remove weaknesses in the studies it includes. The patients were not all enrolled in one large randomised trial. Surgical studies can differ in patient selection, the experience of the surgeon, exactly how the operation is performed, how pain relief is defined and how long patients are followed.
Those differences matter particularly when comparing surgical techniques. A highly experienced surgeon using one method may achieve different results from a less experienced team using another. Technique cannot be separated completely from expertise.
The authors themselves conclude that randomised trials are needed before deciding whether endoscopic MVD should replace the traditional microscopic approach.
They also raise the possibility that an endoscope-assisted microscopic approach may combine advantages of both techniques. That is another area where more evidence is needed.
Who is this research relevant to?
This paper is relevant mainly to people who are already being considered for MVD. It does not mean that MVD is appropriate for everyone with trigeminal neuralgia.
TN is classified as classical, secondary or idiopathic, and treatment decisions depend on the diagnosis, symptoms, imaging, previous treatment, general health and the balance of risks and potential benefits for the individual patient.
A research paper comparing two surgical techniques should therefore never be read as a recommendation that someone should have surgery.
Questions to ask a neurosurgeon
If MVD is being discussed, patients may find it useful to ask:
- Why do you think MVD is, or is not, appropriate for my particular TN?
- What does my MRI show, and how does that fit with my symptoms?
- Do you use microscopic, endoscopic or endoscope-assisted MVD?
- Why do you prefer that technique?
- How many MVD operations does your centre perform?
- What are your own results for pain relief and recurrence?
- What complications do you see most often?
- How long are patients usually followed after surgery?
- What other procedures are reasonable alternatives in my case?
These questions are not about challenging a surgeon. They are about understanding the decision properly.
What this research does — and does not — tell us
The strongest conclusion from this review is not that endoscopic MVD has “won”.
It is that both techniques produced similar initial pain relief in the studies analysed, while the endoscopic approach showed potentially important advantages in recurrence, hospital stay, facial numbness and overall complications.
Those findings deserve attention and further research. They are not yet a reason to tell every patient to seek a particular surgical technique.
A single systematic review also does not change clinical guidance by itself. Evidence has to be considered alongside other studies, clinical experience, patient selection, longer-term outcomes and future trials.
Why TNA UK is following this
People with trigeminal neuralgia understandably follow new research closely. When pain is severe or treatment has stopped working, even a small headline can carry enormous weight.
That is why I want TNA UK to do more than repeat research headlines.
We should tell people what was studied, how strong the evidence is, what the numbers mean, what remains uncertain and what questions are worth taking into a clinical appointment.
This study is encouraging. It is also a good example of why hope and caution belong in the same conversation.
Patients deserve both.
We will continue to follow new evidence through the TNA UK Research Hub and explain important developments in plain English. You can also read more about our research work, patient evidence and patient involvement.
Related TNA UK information
Explore our Trigeminal Neuralgia Research Hub, read about microvascular decompression (MVD), learn more about trigeminal neuralgia, or browse the latest TNA UK news and updates.
Source
Kumar VV, Imran MM, Bajaj J, Kaliaperumal C. Endoscopic vs microscopic microvascular decompression for trigeminal neuralgia: a systematic review and meta-analysis. British Journal of Neurosurgery. Published online 7 August 2026. DOI: 10.1080/02688697.2026.2708674. PubMed record.
About this article: Written by Aneeta Prem MBE, Chief Executive of TNA UK. This article provides general information about published research and does not replace individual medical advice. Anyone considering surgery for trigeminal neuralgia should discuss the available options, potential benefits and risks with an appropriately experienced specialist.