Radiation Oncology
Expert insights on radiation treatment planning, techniques, toxicity management, and multimodal cancer care.
Recent Discussions
Are there any volumetric constraints associated with toxicity in the dose range that is moderately above prescription (i.e. 30-35 Gy range), when planning hippocampal-sparing whole brain radiation?
This is an important question worth some discussion. As the question mentions, clinical trials of HA-WBRT have permitted a hot spot of 133% of the prescription dose of 30 Gy (or 40 Gy) to D2% of the whole-brain parenchyma as an acceptable protocol variation. Importantly, none of these trials have de...
What are the current official guidelines regarding managing patients during COVID-19?
Here are some guidelines and FAQ from professional societies: NCCN: https://www.nccn.org/covid-19/default.aspx ASTRO FAQ: https://www.astro.org/Daily-Practice/COVID-19-Recommendations-and-Information/COVID-19-FAQs ASCO Coronavirus Resources: https://www.asco.org/asco-coronavirus-information
For an non-operative patient with IB1 cervical cancer, would you recommend RT alone or concurrent chemoRT for definitive therapy?
I usually favor RT alone as local control and the outcome is excellent unless they have adenocarcinoma, a suspicious pelvic node, or multiple high risk features (high grade with LVSI on bx).
What are best practices for taking care of lung cancer patients during the COVID-19 pandemic?
This is a great question, and as always there is no one size fits all. For patients on active treatment for lung cancer such as chemoimmunotherapy, I continue to stress the importance of hand washing, social distancing, and to work on reducing wait times in the waiting room to limit exposure, etc. I...
How does the potential for a patient to accept or forego adjuvant tamoxifen factor into your recommendations on adjuvant RT for DCIS?
In the RTOG 9804 trial, the only factors predicting for local control in the breast were the use of radiation and of tamoxifen. So for women who have hormone positive tumors, I strongly advocate for some treatment in addition to the lumpectomy.I find the results of the UK, Australia, and New Zealand...
Do you recommend chemoradiation following neoadjuvant FOLFIRINOX for resectable pancreatic cancer?
Tough question, with lots of evolution in this area in the past few years. The data would suggest that for borderline resectable pancreatic cancer, there is a benefit in terms of OS from preoperative treatment. For unresectable disease, the small chance of conversion into resectability is worth the ...
How do you counsel patients on the risks and benefits of chemotherapy or radiation offered with palliative intent?
Before I start counseling a patient on these decisions I want to know a few things first.I would want to know from the oncologists what they think the benefits are (i.e. how much more time might they get? Symptom control?) and what the risks are? The chances the patient will see benefit. And when th...
Would you use a hippocampal sparing technique when treating with PCI for a limited stage small cell lung cancer?
This is an important question where the evidence is evolving, and some key trials remain ongoing. Because the data remains in flux, in the ongoing phase 3 SWOG S1827/Maverick trial of MRI surveillance +/- prophylactic cranial irradiation (PCI) for LS and ES-SCLC, where I serve as the PI, hippocampal...
When should you use single-fraction radiotherapy for spinal cord compression?
The SCORAD III trial is practice changing. But I do NOT plan to treat ALL patients with spinal cord compression with a single fraction of 8 Gy now. Here is why: SCORAD III is extremely important new study for the management of metastatic epidural spinal cord compression (MESCC) for patients with sho...
Should we be stopping new starts of patients who can be triaged for 2-3 months like prostate cancers on ADT when significant community spread of COVID-19 is detectable in our area?
I would for those patients requiring ADT, which is the way I interpreted the question. I want to elaborate more because @Dr. First Last brought up other scenarios we should consider and he brings some more good points: Many patients could get active surveillance for a period of time before ADT is co...