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Oncology Vol 29 No 4_Suppl_1

Overall, outcomes in patients diagnosed with HL in pregnancy in the modern era of chemotherapy and radiation are good. As in HL not diagnosed during pregnancy, outcomes are better in patients with a complete response following initial therapy. Delaying all therapy until the postpartum period is appropriate in properly selected patients and is not associated with poorer outcomes.

This is the largest reported series of AFX treated with radiation therapy in the literature. No contraindication to the use of radiation is found in the literature. Prior series all utilized surgery, likely due to the clinically rapid progression of this tumor. Risk of recurrence is mitigated with surgical debulking prior to brachytherapy. Electronic brachytherapy appears to be a safe and effective treatment for AFX.

ROs in practice less than 5 years, with academic appointments, or with an FT status had statistically significant associations with WBRT/SRS choice. In poor-prognosis patients, consideration of best supportive care measures is done, and short-course RT is often recommended. For patients with good KPS and limited small brain metastases, SRS with or without WBRT is recommended by most practitioners in accordance with ASTRO guidelines.

SABR is an effective treatment modality for patients with pulmonary metastases, with excellent local control. Further studies are warranted to elucidate which patients with pulmonary metastases would benefit from the local control with SABR and determine when to treat with systemic therapy due to quick progression of distant metastases.

Veterans with brain metastases treated at VHA radiation oncology centers receive appropriate care. Still, the use of prognostic indices in treatment decision-making is statistically significantly more likely in cases treated by recent training program graduates. Given the relatively recent development of these scoring systems, educational efforts need to be devoted to increasing their use in the clinic.

For patients with brain metastases, long-term survival is possible, but the majority of long-term survivors will still experience intracranial progression and require salvage therapies after initial treatment. While salvage therapies may control disease, the development of new metastasis seems to adversely affect survival. RN risk increases over time and may affect a significant portion of long-term survivors.

We observed an increase in the use of SFRT for bone metastases over the time period covered. Tracking the encounters by ICD codes and CPT codes, when properly coded, served as a useful tool in providing a snapshot view of SFRT usage. Additionally, physician education is a prerequisite for the proper use of a CPT 77431 to capture the true rate of usage of SFRT in clinical practice.

IGRT use is widespread, without standardization of pretreatment imaging modality, frequency, or verification process. Additionally, PTV margin size selection does not appear to be based on IGRT frequency or method of verification. Further research aimed at optimizing IGRT techniques is needed to ensure accurate, safe, timely, and cost-effective treatment delivery.

Religion and particularly the use of religious songs are important aspects of coping with the cancer experience among older African Americans. During diagnosis and treatment, a religious song is likely to be a viable complement to therapies for symptom reduction and mood elevation among this population.

This is the first report to directly compare pediatric and adult patients with GBM. Pediatric patients had significantly superior OS and CSS when compared with adults, and these differences remained significant over time and on multivariate analysis. The underlying cause of these survival differences between pediatrics and adults requires exploration, with attention to molecular biological tumor differences.

SAPBI via CyberKnife is a suitable platform for partial breast irradiation, offering improvements over existing APBI techniques, with excellent normal tissue-sparing. Our early findings indicate that CyberKnife SAPBI delivered in five fractions is a feasible, well-tolerated, and reliable platform for delivering PBI.

Bone marrow aspiration under CT guidance is a safe procedure that has become commonplace at our institution. Pain is minimal, even in the absence of sedation. All biopsies performed at our institution with participation from the pathology department have resulted in diagnostic specimens, and relationships with healthcare stakeholders have improved.

UPR is a novel technique that has been developed in a preclinical tumor model and that is potentially applicable in HNCs. This exploratory study appears consistently to identify subvolumes within the GTV that may have therapeutic implications and that may be promising areas for further research (eg, correlation with hypoxia and clinical outcome).

We have developed a novel TCDR-based approach to improve prostate delineation utilizing intraoperative TRUS-based prostate volume in prostate HDR brachytherapy and demonstrated its improvement in prostate volume accuracy over the standard CT-defined prostate volumes. Integration of TRUS into the HDR brachytherapy treatment planning workflow has the potential to enable accurate dose planning and delivery and enhance prostate HDR treatment outcome.

Skin dose is dependent on patient anatomy, the incident beam geometry, and planning techniques. For example, RapidArc plans with tissue expanders should be monitored for skin dose coverage. In conclusion, the skin dose should be measured to ensure that the clinically desired dose is obtained for the various bolus applications in patients undergoing PMRT.

These data suggest that the use of a CT myelogram with simulation significantly underestimates the spinal cord maximum and mean doses. The clinical significance of this finding is uncertain, and this study is limited by its small sample size. Density correction should be further investigated in a larger study, given the high doses used in SBRT and potential morbidity of spinal cord injury.

The impact of obesity on adjuvant treatment is poorly understood. Increasing BMI was associated with increased frequency of gynecologic and cutaneous radiation-associated toxicities. Additional studies to critically evaluate the radiation treatment dosing and treatment fields in obese EC patients are warranted to identify strategies to mitigate the radiation-associated toxicities in these women.

Expert agreement for definitive-case volumes was exceptionally high, although significantly lower agreement was noted postoperatively. Technique and dose prescription between experts were substantively consistent, and these preliminary results will be utilized to create an expert-consensus contouring atlas to aid the nonexpert radiation oncologist in the planning of these challenging, rare tumors.