Publications by authors named "Pamela Schlembach"

Article Synopsis
  • The study focuses on how palliative radiation therapy (RT) can alleviate pain and symptoms in patients with symptomatic locoregionally advanced breast cancer (SLABC).
  • Analyzed data from 164 patients treated between 2016 and 2023 showed a majority experienced symptom relief within 3 months post-RT, with significant ongoing pain improvement for at least a year.
  • Results indicate that while acute side effects varied with the treatment dose and fractionation, the overall effectiveness of RT in managing symptoms was consistent regardless of dosage variations, suggesting a tailored approach could be beneficial.
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Purpose: A major barrier to the incorporation of biometric data into clinical practice is the lack of device integration with electronic medical records (EMRs). We developed infrastructure to transmit biometric data from an Apple Watch into the EMR for physician review. The study objective was to test feasibility of using this infrastructure for patients undergoing radiotherapy.

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Stereotactic radiation therapy yields high rates of local control for brain metastases, but patients in rural or suburban areas face geographic and socioeconomic barriers to its access. We conducted a phase II clinical trial of frameless, fractionated stereotactic radiation therapy for brain metastases in an integrated academic satellite network for patients 18 years of age or older with 4 or fewer brain metastases. Dose was based on gross tumor volume: less than 3.

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Purpose: Socioeconomic barriers contribute to breast cancer clinical trial enrollment disparities. We sought to identify whether socioeconomic disadvantage also is associated with decreased trial retention.

Methods And Materials: We performed a secondary analysis of 253 (of 287) patients enrolled in a randomized phase 3 trial of conventionally fractionated versus hypofractionated whole-breast irradiation.

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Purpose: Evidence supports use of partial-breast irradiation (PBI) in the management of early breast cancer, but the optimal dose-fractionation remains unsettled.

Methods And Materials: We conducted a phase 2 clinical trial (OPAL trial) to evaluate a novel PBI dosing schedule of 35 Gy in 10 daily fractions. Patients with close (<2 mm) margins also received a boost of 9 Gy in 3 fractions.

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Introduction: The first high-quality clinical trial to support ultrahypofractionated whole-breast irradiation (ultra-HF-WBI) for invasive early-stage breast cancer (ESBC) was published in April 2020, coinciding with the beginning of the COVID-19 pandemic. We analyzed adoption of ultra-HF-WBI for ductal carcinoma in situ (DCIS) and ESBC at our institution after primary trial publication.

Methods And Materials: We evaluated radiation fractionation prescriptions for all patients with DCIS or ESBC treated with WBI from March 2020 to May 2021 at our main campus and regional campuses.

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Purpose: Patients with breast cancer and ipsilateral axillary and internal mammary (IM) lymph node involvement (cN3b) often forgo IM node resection. Therefore, radiation is important for curative therapy. However, prognosis is not well described in the era of modern systemic therapy, and limited data exist to guide optimal locoregional treatment recommendations.

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Purpose: There are limited prospective data on predictors of patient-reported outcomes (PROs) after whole-breast irradiation (WBI) plus a boost. We sought to characterize longitudinal PROs and cosmesis in a randomized trial comparing conventionally fractionated (CF) versus hypofractionated (HF) WBI.

Methods And Materials: From 2011 to 2014, women aged ≥40 years with Tis-T2 N0-N1a M0 breast cancer who underwent a lumpectomy with negative margins were randomized to CF-WBI (50 Gray [Gy]/25 fractions plus boost) versus HF-WBI (42.

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Purpose: The adoption of hypofractionated whole-breast irradiation (HF-WBI) remains low, in part because of concerns regarding its safety when used with a tumor bed boost or in patients who have received chemotherapy or have large breast size. To address this, we conducted a randomized, multicenter trial to compare conventionally fractionated whole-breast irradiation (CF-WBI; 50 Gy/25 fx + 10 to 14 Gy/5 to 7 fx) with HF-WBI (42.56 Gy/16 fx + 10 to 12.

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Purpose: This study aimed to prospectively characterize toxicity and cosmesis after accelerated partial breast irradiation (APBI) with 3-dimensional conformal radiation therapy (CRT) or single-entry, multilumen, intracavitary brachytherapy.

Methods And Materials: A total of 281 patients with pTis, pT1N0, or pT2N0 (≤3.0 cm) breast cancer treated with segmental mastectomy were prospectively enrolled from December 2008 through August 2014.

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Purpose: Hypofractionated radiotherapy delivers larger daily doses of radiation and may increase the biologically effective dose delivered to the prostate. We conducted a randomized trial testing the hypothesis that dose-escalated, moderately hypofractionated intensity-modulated radiation therapy (HIMRT) improves prostate cancer control compared with conventionally fractionated IMRT (CIMRT) for men with localized prostate cancer.

Patients And Methods: Men were randomly assigned to 75.

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Importance: Whether genetic factors can identify patients at risk for radiation-induced fibrosis remains unconfirmed.

Objective: To assess the association between the C-509T variant allele in the promoter region of TGFB1 and breast fibrosis 3 years after radiotherapy.

Design, Setting, And Participants: This is an a priori-specified, prospective, cohort study nested in an open-label, randomized clinical trial, which was conducted in community-based and academic cancer centers to compare hypofractionated whole-breast irradiation (WBI) (42.

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Purpose: Moderately hypofractionated intensity modulated radiation therapy (HIMRT) for prostate cancer shortens the treatment course while providing outcomes comparable with those of conventional intensity modulated radiation therapy (CIMRT). To determine the long-term economic value of HIMRT, including the costs of managing long-term radiation toxicities, a cost minimization analysis compared CIMRT with dose-escalated HIMRT using patient-level data from a randomized trial.

Methods And Materials: Men with localized prostate cancer were randomized to CIMRT (75.

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Objectives: Hypofractionated prostate radiotherapy may increase biologically effective dose delivered while shortening treatment duration, but information on patient-reported urinary, bowel, and sexual function after dose-escalated hypofractionated radiotherapy is limited. We report patient-reported outcomes (PROs) from a randomized trial comparing hypofractionated and conventional prostate radiotherapy.

Methods: Men with localized prostate cancer were enrolled in a trial that randomized men to either conventionally fractionated intensity-modulated radiation therapy (CIMRT, 75.

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Background: The authors compared longitudinal patient-reported outcomes and physician-rated cosmesis with conventionally fractionated whole-breast irradiation (CF-WBI) versus hypofractionated whole-breast irradiation (HF-WBI) within the context of a randomized trial.

Methods: From 2011 to 2014, a total of 287 women with American Joint Committee on Cancer stage 0 to stage II breast cancer were randomized to receive CF-WBI (at a dose of 50 grays in 25 fractions plus a tumor bed boost) or HF-WBI (at a dose of 42.56 grays in 16 fractions plus a tumor bed boost) after breast-conserving surgery.

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Purpose: Electronic health records (EHRs) often store information as unstructured text, whereas electronic data capture (EDC) using structured fields is common in clinical trials. We implemented a web-based EDC system for routine clinical care, and describe our experience piloting this system for breast cancer patients receiving radiation therapy.

Methods: Our institution uses dictation for clinical documentation in a centralized EHR; a separate radiation therapy-specific record-and-verify system contains prescriptions, schedules, and treatment documentation.

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Importance: The most appropriate dose fractionation for whole-breast irradiation (WBI) remains uncertain.

Objective: To assess acute and 6-month toxic effects and quality of life (QOL) with conventionally fractionated WBI (CF-WBI) vs hypofractionated WBI (HF-WBI).

Design, Setting, And Participants: Unblinded randomized trial of CF-WBI (n = 149; 50.

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Purpose: We implemented a peer review program that required presentation of all nonpalliative cases to a weekly peer review conference. The purpose of this review is to document compliance and determine how this program impacted care.

Methods And Materials: A total of 2988 patients were eligible for peer review.

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Purpose: The purpose of the study was to analyze the results with radiotherapy alone in a select group of asymptomatic adults with nonbulky, early-stage lymphocyte-predominant Hodgkin's disease.

Patients And Methods: Between 1963 and 1995, 36 patients with nonbulky stage IA (N = 27) or IIA (N = 9) supradiaphragmatic (N = 27) or subdiaphragmatic (N = 9) lymphocyte-predominant Hodgkin's disease were treated with radiotherapy alone. Eleven of the patients underwent laparotomy.

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Background: Lymphocyte-predominant Hodgkin disease (LPHD) is rare and has a natural history different from that of classic Hodgkin disease. There is little information in the literature regarding the role of chemotherapy in patients with early-stage LPHD. The objective of this study was to examine recurrence free survival (RFS), overall survival (OS), and patterns of first recurrence in patients with LPHD who were treated with radiotherapy alone or with chemotherapy followed by radiotherapy.

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