Publications by authors named "L S Constine"

Purpose: To compare the effect of two linacs designs on fetal dose sparing on a pregnant patient, including estimation of the fetal dose, and the effect of a lead apron.

Methods: A patient with a high-grade sarcoma located in the right knee/lower thigh was prescribed 51 Gy (1.7 Gy/Fx) with a simultaneous-integrated-boost (SIB) of 60 Gy to a smaller volume, starting in the 26th gestational week.

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Article Synopsis
  • Brentuximab vedotin has been shown to improve outcomes in treating advanced classic Hodgkin's lymphoma, but it also causes more toxic side effects in adults, while many pediatric patients still need radiation therapy and face challenges with relapse.
  • A phase 3 trial involving patients aged 12 and older tested two treatment combinations: brentuximab vedotin with standard chemotherapy (BV+AVD) versus nivolumab with standard chemotherapy (N+AVD), aiming to assess progression-free survival.
  • Results indicated that N+AVD significantly enhances progression-free survival compared to BV+AVD, with a 2-year survival rate of 92% for N+AVD versus 83% for BV
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Purpose: The Audiovisual-Assisted Therapeutic Ambience in Radiotherapy (AVATAR) trial was a prospective multicenter study (NCT03991156) examining the combination of video immersion with radiation therapy and was successfully conducted through the collaboration of pediatric radiation oncology teams at 10 institutions independent of any pre-existing consortium. We sought to analyze and report the methodology of trial conception and development, process map, and cost.

Methods And Materials: The study enrolled patients aged 3 to 10 years preparing to undergo radiation therapy, integrated the combination of AVATAR-based video immersion with radiation therapy at each institution, and offered AVATAR use as an alternative to anesthesia, with rates of anesthesia use and outcomes of serial standardized anxiety and quality-of-life assessments assessed among the 81 children enrolled.

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Background: Childhood cancer survivors (CCS) are at increased risk for keratinocyte carcinomas (KC) however, the long-term incidence of single and multiple KC is not well established.

Objective: Identify risk factors and quantify KC cumulative incidence and multiple-incidence burden in CCS.

Methods: KC were identified among Childhood Cancer Survivor Study participants, a cohort of 5-year cancer survivors diagnosed <21 years of age between 1970 and 1999 in North America.

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