Would you ever offer a simultaneous integrated boost to the lumpectomy cavity with 5 fraction ultra-hypofractionated whole breast radiotherapy (2600 cGy in 5 fractions)?

If so, what dose would you utilize for the SIB? When utilizing a boost with ultra-hypofractionated whole breast RT, would you favor adding a single fraction of 520 cGy as a boost over SIB?

Answer from: Radiation Oncologist at Community Practice

Yes, it was delivered in the trial although with conventional fractionation. In practice, we do 2.5 x 4 or 5.2 x 1-2 fractions like RCR guidelines.

Comments

Radiation Oncologist at UH Seidman Cancer Center, Case Western Reserve University
Has anyone delivered this as an SIB?

Radiation Oncologist at Varian Medical Systems/Allegheny health network
This is early data from an ongoing randomized stud...

Radiation Oncologist at Cleveland Clinic
We are doing on a prospective trial, 26/5 whole br...

Answer from: Radiation Oncologist at Academic Institution

I routinely have offered whole breast to 26 Gy/5 fx with lumpectomy cavity SIB to 30 Gy with no difference in toxicity observed vs 26 Gy alone and approach SIB as I do APBI to that dose.

Comments

Radiation Oncologist at St. Francis Cancer Institute
Do you bill this as partial breast IMRT?

Radiation Oncologist at Mallory Radiotherapy, PLLC
I’m guessing you’re asking because man...

Radiation Oncologist at Baylor Scott & White Health
If it’s left side bill whole breast IMRT wit...

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Would you ever offer a simultaneous integrated boost to the lumpectomy cavity with 5 fraction ultra-hypofractionated whole breast radiotherapy (2600 cGy in 5 fractions)?

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