Clinical Goals (CG) is a tool available in the Varian Eclipse planning system to objectively and visually evaluate the quality of treatment plans based upon user-defined dose-volume parameters. We defined a set of CG for Stereotactic Radiosurgery (SRS) and Intensity-Modulated Radiotherapy (IMRT) based on published data and guidelines and implemented this in a network of cancer centers in India (American Institute of Oncology). A dosimetric study was performed to compare brain SRS and breast IMRT plan quality before and after CG implementation.
View Article and Find Full Text PDFContext: At our institution, clinical pathways capture physicians' prognostication of patients being evaluated for palliative radiotherapy. We hypothesize a low utilization rate of long-course radiotherapy (LCRT) and stereotactic ablative radiotherapy (SAbR) among patients seen at the end of life, especially those with physician-predicted poor prognosis.
Objective: To analyze utilization rates and predictors of LCRT and SAbR at the end of life.
Background: The TEACHH and Chow models were developed to predict life expectancy (LE) in patients evaluated for palliative radiotherapy (PRT). We sought to validate the TEACHH and Chow models in patients who died within 90 days of PRT consultation.
Methods: A retrospective review was conducted on patients evaluated for PRT from 2017 to 2019 who died within 90 days of consultation.
Background: The standard of care in locally advanced rectal cancer is preoperative chemoradiation followed by surgical resection. However, the optimal treatment paradigm is currently controversial for patients with pathological T3N0 (pT3N0) in the era of total mesorectal excision (TME). Given the paucity of data, we conducted an analysis using the National Cancer Database (NCDB) to identify patterns of care and outcomes.
View Article and Find Full Text PDFRadiation recall dermatitis (RRD) is an uncommon dermatologic reaction provoked notably by chemotherapy in an area of skin irradiated weeks to years prior. We report a case of RRD with nivolumab in a woman with breast cancer. The patient was diagnosed with invasive ductal carcinoma of the left breast with an isolated spinal metastasis approached in an oligometastatic fashion with neoadjuvant chemotherapy, modified radical mastectomy and adjuvant radiotherapy.
View Article and Find Full Text PDFInt J Radiat Oncol Biol Phys
November 2015
Purpose: Hypofractionated whole-breast irradiation (HF-WBI) remains underutilized in the United States despite support by multiple clinical trials. We evaluated the success of iterative modifications of our breast cancer clinical pathway on the adoption of HF-WBI in a large, integrated radiation oncology network.
Methods And Materials: The breast clinical pathway was modified in January 2011 (Amendment 1) to recommend HF-WBI as the first option for women ≥70 of age with stages 0 to IIA, while maintaining conventional fractionation (CF) as a pathway-concordant secondary option.
Purpose: Studies suggest equivalent pain relief from bone metastases after radiation therapy with >10-fraction regimens and shorter courses. Although American Society for Radiation Oncology evidence-based guidelines and the Choosing Wisely campaign endorse single-fraction treatments and caution against the use of extended courses, publications report single-fraction utilization rates below 5%. We evaluated the impact of our bone metastasis clinical pathway on the adoption of short-course palliative radiation in a large, integrated radiation oncology network.
View Article and Find Full Text PDFBackground: For node-positive vulvar cancer, adjuvant radiotherapy has an established benefit, whereas the impact of chemotherapy is unknown. A National Cancer Data Base (NCDB) analysis was conducted to determine patterns of care and evaluate the survival impact of adjuvant chemotherapy.
Methods: The NCDB was queried for vulvar cancer patients diagnosed from 1998-2011 who underwent extirpative surgery with confirmed inguinal nodal involvement treated with adjuvant radiotherapy.
Purpose: Hypofractionated whole breast irradiation (HF-WBI) following breast conserving surgery has produced excellent outcomes, but utilization remains limited. We evaluated the impact of a clinical pathway in the adoption of HF-WBI in a large, integrated radiation oncology network.
Methods And Materials: We identified patients aged ≥70 years treated for breast cancer or ductal carcinoma in situ.
Purpose: Stereotactic body radiation therapy (SBRT) has been proposed for the palliation of painful vertebral bone metastases because higher radiation doses may result in superior and more durable pain control. A phase III clinical trial (Radiation Therapy Oncology Group 0631) comparing single fraction SBRT with single fraction external beam radiation therapy (EBRT) in palliative treatment of painful vertebral bone metastases is now ongoing. We performed a cost-effectiveness analysis to compare these strategies.
View Article and Find Full Text PDFPurpose: For well-selected elderly women who undergo segmental mastectomy for early-stage, estrogen receptor-positive breast cancer, hormonal therapy alone is emerging as an acceptable adjuvant therapy option since the initial publication of Cancer and Leukemia Group B 9343 study in 2004 and update in 2013. The rate of adoption of adjuvant hormonal therapy alone in lieu of radiation therapy (RT) and its associated patterns of care is not known in the United States and was the subject of this study.
Methods And Materials: We used the National Cancer Data Base to identify women aged ≥70 diagnosed with T1N0/T1Nx invasive breast cancer who underwent segmental mastectomy between 1998 and 2011.
Purpose: Rapid development of sophisticated modalities has challenged radiation oncologists to evaluate workflow and care delivery processes. Our study assesses treatment modality use and willingness to alter management with anticipated limitations in reimbursement and resources.
Methods And Materials: A web-based survey was sent to 43 radiation oncologists in a National Cancer Institute-designated comprehensive cancer center network.
Purpose: There have been conflicting reports regarding the incidence of duodenal toxicity in patients receiving intensity modulated radiation therapy (IMRT) with an extended field covering the para-aortic (PA) lymph nodes for gynecologic cancers. We reviewed our experiences and rates of duodenal toxicity in patients treated with extended field IMRT.
Methods And Materials: Patients with either cervical or endometrial cancer who were treated with IMRT to the PA nodes for involved lymph nodes or for prophylactic intent between 2005 and 2013 were included.
Purpose: Three-dimensional image-guided brachytherapy (IGBT) is a significant advance in locally advanced cervical cancer treatment. However, its cost-effectiveness (C/E) is unknown. We performed a C/E analysis of IGBT compared with conventional (two-dimensional [2D]) brachytherapy in the treatment of locally advanced cervical cancer.
View Article and Find Full Text PDFPurpose: Vaginal cancer is an uncommon malignancy that is usually treated with definitive radiation therapy. Following external beam radiation therapy (EBRT), a brachytherapy boost is delivered to achieve a total dose of 70-85 Gy. We sought to determine the trends of brachytherapy boost utilization in the treatment of vaginal cancer and to identify the factors associated with its utilization.
View Article and Find Full Text PDFBackground: Vaginal cancer is an uncommon entity for which concurrent chemoradiation (CCRT) may be used based on small retrospective series and extrapolation from cervical cancer. We explored the adoption rate of CCRT and determined its impact on survival.
Methods: Patients entered into the National Cancer Data Base (NCDB) diagnosed with vaginal cancer from 1998 to 2011 who received definitive radiation therapy were included.
Background: Neoadjuvant stereotactic body radiotherapy (SBRT) has potential applicability in the management of borderline resectable and locally-advanced pancreatic adenocarcinoma. In this series, we report the pathologic outcomes in the subset of patients who underwent surgery after neoadjuvant SBRT.
Methods: Patients with borderline resectable or locally-advanced pancreatic adenocarcinoma who were treated with SBRT followed by resection were included.
Purpose: To compare the three-dimensional (3D) image (CT/MR)-based planning with a multichannel vaginal cylinder (MVC) to a single-channel vaginal cylinder (SVC) for the treatment of vaginal cancer.
Methods And Materials: A total of 20 consecutive patients were treated with 3D CT/MR image-based high-dose-rate (HDR) brachytherapy using an MVC. All patients received external beam radiation therapy before HDR brachytherapy.
Purpose: The tolerance and complication rates of the urethra are unknown for the interstitial high-dose-rate brachytherapy (HDR-BT) for vaginal cancer.
Methods And Materials: Patients with vaginal cancer near/involving the urethra who were treated with HDR-BT between 2008 and 2011 were included. Patients received mean external beam dose of 48.
Object: The authors compared the effectiveness of single-session (SS) and multisession (MS) stereotactic radiosurgery (SRS) for the treatment of spinal metastases.
Methods: The authors conducted a retrospective review of the clinical outcomes of 348 lesions in 228 patients treated with the CyberKnife radiosurgery at the University of Pittsburgh Cancer Institute and Georgetown University Medical Center. One hundred ninety-five lesions were treated using an SS treatment regimen (mean 16.
Purpose: Clinical pathways are an important tool used to manage the quality in health care by standardizing processes. This study evaluated the impact of the implementation of a peer-reviewed clinical pathway in a large, integrated National Cancer Institute-Designated Comprehensive Cancer Center Network.
Methods: In 2003, we implemented a clinical pathway for the management of bone metastases with palliative radiation therapy.