Intraoperative Radiotherapy for Breast Cancer (Intrabeam)

Intraoperative radiotherapy (IORT) delivers a single dose of radiation directly into the tumour bed during breast-conserving surgery, while you are still asleep. Intrabeam is the most widely used device: a miniature low-energy X-ray source with a ball-shaped applicator placed in the cavity left by the lumpectomy.

For carefully selected early breast cancers it can replace 3 to 5 weeks of daily external radiotherapy. Local recurrence is slightly higher than with whole breast radiotherapy in trials, and about 1 in 5 women still need external radiotherapy once final pathology is known.

What Intraoperative Radiotherapy for Breast Cancer (Intrabeam) involves

Your case is first discussed by a breast multidisciplinary team, with mammography, ultrasound, often MRI and a core biopsy showing receptor status. On the day, the surgeon performs a wide local excision and sentinel lymph node biopsy. A spherical applicator of 1.5 to 5 centimetres is chosen to fit the cavity snugly and the breast tissue is drawn around it with a purse-string stitch. The skin edges are kept at least a centimetre away and the chest wall may be shielded. The radiation oncologist and physicist then deliver 20 gray at the applicator surface over 20 to 45 minutes. The applicator is removed and the wound closed as normal. Final pathology, ready about a week later, decides whether extra treatment is needed.

Who is a good candidate for Intraoperative Radiotherapy for Breast Cancer (Intrabeam)?

Guidelines restrict single-dose IORT to low risk disease, and the criteria matter more than the convenience.

• Age 50 or over, and ideally over 60 in the strictest guidelines
• Single invasive ductal cancer up to about 2 to 3 centimetres
• Hormone receptor positive, HER2 negative, grade 1 or 2
• No lymph node involvement on imaging
• Difficulty attending weeks of daily radiotherapy

It is usually not the right choice if:

• Lobular cancer, multiple tumours or extensive DCIS
• Known lymph node spread or lymphovascular invasion
• BRCA mutation carriers and younger women
• Tumour too close to the skin
• Women who need chemotherapy before surgery

Technique options

• Intrabeam low-energy X-rays (TARGIT): Single 20 gray dose during lumpectomy; the most studied photon IORT.
• Electron IORT (ELIOT): Mobile linear accelerator delivering electrons; similar concept.
• IORT as a boost: IORT given to the tumour bed followed by shortened whole breast radiotherapy in higher risk women.
• External partial or whole breast radiotherapy: Modern schedules take only 5 to 15 sessions and remain the standard comparison.

What happens during your treatment

IORT adds about 30 to 45 minutes to a lumpectomy, giving a total of 1.5 to 2.5 hours under general anaesthesia. You feel nothing of the radiation. Most women go home the same day or after one night with a small drain in some cases.

Preparing for your trip

Plan for 10 to 14 days, until final pathology in Istanbul. Your surgeon reviews photographs and your medical history before you book, and you meet in person the day before surgery for examination, marking and consent with a professional interpreter.

• Stop smoking and nicotine at least four weeks before and after surgery; it is the single biggest avoidable cause of wound problems
• Tell the team about every medicine and supplement you take; blood thinners, some herbal products and hormone treatment may need to be paused on your doctor's advice
• Arrange for someone to travel with you or to be reachable, and keep the first days at home free of work and lifting
• Book a changeable return flight; your surgeon confirms when you are fit to fly

Recovery and results

Recovery is that of a lumpectomy: light activity in a few days, desk work in 1 to 2 weeks. The treated area may feel firm, and a fluid collection (seroma) is more common than after surgery alone. You must wait for final pathology before travelling home, because involved margins, positive nodes or unexpected lobular features mean re-excision or additional external radiotherapy. Hormone tablets for 5 years or more are prescribed by your oncologist at home.

• Back to everyday activity: 1 to 2 weeks
• When results show: Treatment complete in one session
• How long they last: Judged by long-term follow-up with yearly mammograms

Safety, risks and revision policy

Side effects are mostly local and milder on the skin than with external radiotherapy.

• Seroma needing needle drainage
• Firmness or fibrosis of the tumour bed, sometimes tender
• Delayed wound healing or infection
• Need for additional external radiotherapy in roughly 15 to 20 percent
• A small increase in local recurrence compared with whole breast radiotherapy
• Calcification or fat necrosis that complicates reading later mammograms

Every written proposal arranged through Clinic-Y states what the clinic covers if a correction is needed. Ask for it before you book, not after.

Cost of Intraoperative Radiotherapy for Breast Cancer (Intrabeam) in Türkiye

Clinic-Y does not publish a single price for Intraoperative Radiotherapy for Breast Cancer (Intrabeam), because the honest figure depends on your case. What moves it:

• Use of the IORT device, applicator and physics team
• Sentinel node biopsy and frozen section
• Pre-operative MRI and biopsy review
• Possible additional external radiotherapy or re-excision

Send your photographs or reports and you receive written, all-inclusive proposals from suitable teams, side by side. Reviewing your case is free.

Frequently Asked Questions