Does the presence of interstitial lung disease affect your decision to offer SBRT for early stage NSCLC?
Specifically in O2-dependent patients? Have any dose/fractionation regimens been shown to reduce the risk of pneumonitis in this population?
Answer from: Radiation Oncologist at Academic Institution
As opposed to interstitial lung disease (ILD) in general, the entity most described in the literature as associated with severe pulmonary toxicity after SABR has more specifically been idiopathic pulmonary fibrosis (IPF) and additionally, in the absence of a known diagnosis of IPF, CT findings consi...
Answer from: Radiation Oncologist at Academic Institution
Over the years, I have become more conservative and cautious in my utilization of radiation therapy (both conventional and SBRT) in patients with known interstitial lung disease (ILD) and will refer patients to a pulmonologist if incidental findings of interstitial fibrosis are noted on CT imaging, ...
Comments
Radiation Oncologist at National Cancer Institute Can you please clarify what you meant by “smallâ...
Radiation Oncologist at Stanford University School of Medicine As opposed to interstitial lung disease (ILD) in g...
Like most choices about lung cancer therapies in patients with limited pulmonary reserve, this comes down to risk/benefit analysis, forthright counseling, close monitoring, and shared decision-making.
Patients with ILDs are at increased risk of pneumonitis, and though radiation pneumonitis is...
Answer from: Radiation Oncologist at Community Practice
At this year's ASTRO, Dr. @Palma and his group presented this prospective study which is possibly the best evidence
ASPIRE-ILD (2019-2022) [ASTRO '23]: Phase II, single arm. Dose de-escalation for ILD patients (NCT03485378).
â—‹ 39 patients with T1-2N0M0 NSCLC with co-existing ILD who a...
Answer from: Radiation Oncologist at Community Practice
In the past three years, I have treated over a dozen patients who were oxygen dependent 24/7 (2-4 L) with SBRT or conventionally fractionated definitive chemoRT or hypofractionated RT alone without chemo with curative intent (few had ILD). These patients are not surgical candidates and radiation is ...
Answer from: Radiation Oncologist at Community Practice
I will only treat these patients with DIBH or Gated techniques. The risks are too high to allow SBRT doses to treat a bunch of normal lung parenchyma that move in and out of an iGTV volume. If one can't offer these IGRT techniques, please refer them to a center that can.