Choosing to travel abroad for glioblastoma surgery is a hard decision made under time pressure. You weigh unfamiliar credentials, language barriers, and uncertain outcomes within days of diagnosis. This guide shows you how to choose: what credentials matter, what to ask the surgeon, and what outcome data to request.
What Should You Look For in an International GBM Surgeon?
Look for a fellowship-trained neurosurgeon with experience in high-grade glioma, access to imaging and fluorescence-guided tools, participation in a multidisciplinary neuro-oncology team, and willingness to share outcome data. These are the minimum standards you should expect. Each section below explains one of these four areas.
Why Surgeon Selection Matters for Glioblastoma
Glioblastoma surgery is technically demanding. The tumor has no clean edges - it spreads into surrounding brain tissue. Surgeons try to remove as much as possible without causing new harm. This approach is called maximal safe resection. The percentage of tumor removed is the extent of resection (EOR).
Studies show that higher EOR leads to better survival. A 2023 analysis on supramaximal resection for glioblastoma found that removing 98% or more of the tumor was linked to better survival. Other reviews found that removing 90% or more is better than removing less. The difference often depends on which tools the surgeon has and how often they use them.
To learn more about how surgical technique affects outcomes, see 5-ALA Fluorescence-Guided Surgery for Glioblastoma.
Credentials: What to Verify Before You Commit
Primary Neurosurgical Qualification
In most countries, independent neurosurgical practice requires a recognized primary qualification. In India, this is the MCh (Neurosurgery) from an accredited institution. In the UK, it is the Fellowship of the Royal College of Surgeons (FRCS) in neurosurgery. In the US, it is certification from the American Board of Neurological Surgery (ABNS). Ask the hospital to state the surgeon's primary qualification and the body that issued it in writing. Most hospitals publish this on the surgeon's profile page.
Subspecialty Fellowship in Surgical Neuro-Oncology
Board certification means a surgeon can practice neurosurgery. A subspecialty fellowship in surgical neuro-oncology means they spent extra years training specifically in brain tumor surgery. A framework published in Neuro-Oncology outlines the skills expected at this training level, including work with fluorescence-guided resection, intraoperative monitoring, and collaboration within a multidisciplinary team. Ask the surgeon directly: where did you complete your subspecialty training, and for how long?
Personal Case Volume in Glioblastoma
Volume does not guarantee quality, but experience with a specific tumor type matters. The US National Cancer Institute recommends that patients with rare brain tumors ask their neurosurgeon how many cases of their tumor type they treat each year. Ask for the surgeon's own number, not the department's total. A surgeon who performs two or three glioblastoma resections a year has much less experience than someone who performs several dozen.
Surgical Tools: What to Ask About the Operating Room
Beyond credentials, the tools available during surgery matter. Ask about each of the following before you commit:
- 5-ALA fluorescence guidance. 5-Aminolevulinic acid (5-ALA) is a compound taken by mouth before surgery. Tumor cells break it down into a substance that glows pink under a specific wavelength of light, letting the surgeon see residual tumor that would otherwise be invisible. A meta-analysis found 5-ALA was linked to higher rates of complete tumor removal and longer progression-free survival compared to regular white-light surgery.
- Intraoperative MRI or ultrasound. An MRI taken during the operation lets the team check for residual tumor before closing. Intraoperative ultrasound is a lower-cost option at centers without a full iMRI suite. Both reduce the risk of leaving tumor behind after surgery.
- Neurophysiological monitoring. When the tumor sits near the parts of the brain that control speech or movement - called the eloquent cortex - monitoring of movement and speech signals during surgery is standard at high-volume centers. This monitoring lets the team spot and avoid damage to these functions in real time.
- Awake craniotomy capability. For tumors in or near the speech or motor cortex, an awake craniotomy - where the patient wakes briefly during the key phase of surgery - may let surgeons remove more tumor safely. Ask whether the team does these regularly or rarely.
The Multidisciplinary Tumor Board: A Non-Negotiable
Glioblastoma is not managed by a surgeon alone. The current standard of care requires a multidisciplinary team - neurosurgeon, neuro-oncologist, radiation oncologist, neuropathologist, and neuroradiologist - who review the case before and after surgery. This team designs the next phase of treatment: usually concurrent chemoradiation (radiation with temozolomide chemotherapy) starting within four to six weeks of surgery.
A full-service neuro-oncology center must have this team. The National Brain Tumor Society lists tumor board review as one of the key questions every patient should ask before surgery. Ask: is there a weekly neuro-oncology tumor board that will review my case? Who attends? Will a neuro-oncologist be available to manage treatment after surgery?
Questions to Send the Surgeon Before You Travel
Put these in writing and send them to the center before you commit. A good team will expect them. A surgeon who finds them unreasonable is telling you something important.
- How many glioblastoma resections have you personally performed in the last 12 months?
- What is your center's rate of gross total resection - removing 90% or more of visible tumor - in newly diagnosed GBM?
- Do you use 5-ALA, intraoperative MRI, or intraoperative ultrasound routinely for glioblastoma surgery?
- What is your surgical complication rate for high-grade glioma cases?
- Is there an on-site neuro-oncologist and radiation oncologist who will manage my care after surgery?
- Will my case be presented at a multidisciplinary tumor board before and after the operation?
- How will operative reports, pathology findings, and post-operative imaging be shared with my home oncologist?
- What remote support can you offer if I develop a complication after returning home?
A surgeon who answers with specifics rather than generalities is a better sign than one who deflects.
Outcome Data to Request and Review
Ask the hospital for outcome data on glioblastoma surgery. Three numbers matter most:
- Gross total resection rate. What percentage of their glioblastoma patients achieve 90% or more tumor removal? This is the best benchmark for comparing surgical quality across centers.
- 30-day complication rate. What fraction of patients develop a new neurological deficit, surgical-site infection, or require a return to the operating room within 30 days? This tells you about safety and how well the surgery works.
- Time to starting treatment after surgery. Delays in beginning concurrent chemoradiation after surgery affect outcomes. Ask how quickly patients start the next phase of treatment at this center.
Many high-volume neuro-oncology centers in India, Germany, Thailand, and South Korea now publish annual clinical outcome reports. If a hospital will not share outcome data in any form, you cannot compare it to other centers with confidence.
Red Flags Worth Naming Directly
Some patterns mean you should not move forward before you travel:
- Any guarantee of cure, promise of a specific survival duration, or claim that their results outperform evidence-based treatment at established centers.
- Reluctance to share records with your home oncologist. Your medical records belong to you.
- No on-site neuro-oncologist or radiation oncologist. Surgery alone is not a complete treatment plan for glioblastoma.
- A quote for surgery that doesn't include post-operative care coordination.
- Pressure to commit within 24 to 48 hours. Quality centers understand that international families need time to check information and ask questions.
Getting a Remote Review Before You Book a Flight
A helpful step before committing to an international center is to have your imaging and pathology reviewed remotely by a specialist with no financial interest in your choice. A remote review can confirm the diagnosis, check whether the surgical plan matches current guidelines, and raise questions to ask the surgeon.
If you want an independent review of your case before you travel, you can arrange a remote second opinion through Art of Healing Cancer, where specialist neuro-oncologists review MRI sequences and pathology reports without making you travel first.
For a step-by-step guide on gathering and sharing your records for this consultation, see Remote Second Opinion for Glioblastoma: How to Prepare Your Materials and What to Expect From Virtual Consultation.
If there is any question about whether the original pathology report is accurate - including the MGMT methylation status, IDH classification, or WHO grade - that needs to be resolved before surgery, not after it. A change in any of these findings can change the entire treatment approach. See International Pathology Second Opinion for Glioblastoma for a guide to that process.
If you have your records ready and want a structured assessment before traveling, you can upload your MRI and pathology reports through the Glioblastoma Center patient-journey form to request a remote review by the team.
When to Talk to Your Doctor
Talk to your current oncologist or neuro-oncologist before you choose an international surgeon. Share the name of the center and the surgeon. Ask your home team to review the surgery plan. Make sure everyone will share records through formal channels. If your current team doesn't specialize in GBM, ask for a referral to a neuro-oncology specialist before you travel.
This article is for general information, not medical advice. Always talk to your oncologist or care team about your specific situation.