Charles A. Sklar

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BACKGROUND Only a few small studies have assessed the long-term morbidity that follows the treatment of childhood cancer. We determined the incidence and severity of chronic health conditions in adult survivors. METHODS The Childhood Cancer Survivor Study is a retrospective cohort study that tracks the health status of adults who received a diagnosis of(More)
PURPOSE This study was undertaken to determine the effect of treatment for childhood cancer on male fertility. PATIENTS AND METHODS We reviewed the fertility of male Childhood Cancer Survivor Study survivor and sibling cohorts who completed a questionnaire. We abstracted the chemotherapeutic agents administered, the cumulative dose of drug administered(More)
OBJECTIVES To assess the incidence of and risks for congestive heart failure, myocardial infarction, pericardial disease, and valvular abnormalities among adult survivors of childhood and adolescent cancers. DESIGN Retrospective cohort study. SETTING 26 institutions that participated in the Childhood Cancer Survivor Study. PARTICIPANTS 14,358 five(More)
CONTEXT Defined as the loss of ovarian function within 5 yr of diagnosis, acute ovarian failure (AOF) is known to develop in a subset of survivors of pediatric and adolescent cancers. Its precise incidence is unknown, and data concerning its risk factors are limited. OBJECTIVE Our objective was to determine the incidence of and patient/treatment factors(More)
PURPOSE To determine whether adult survivors (>or= 18 years of age) of childhood acute lymphoblastic leukemia (ALL) are at increased risk for obesity and to assess patient and treatment variables that influence risk. PATIENTS AND METHODS A retrospective cohort of participants of the Childhood Cancer Survivor Study was used to compare 1,765 adult survivors(More)
IMPORTANCE Adult survivors of childhood cancer are known to be at risk for treatment-related adverse health outcomes. A large population of survivors has not been evaluated using a comprehensive systematic clinical assessment to determine the prevalence of chronic health conditions. OBJECTIVE To determine the prevalence of adverse health outcomes and the(More)
These studies were undertaken to determine the effect, if any, of treatment for cancer diagnosed during childhood or adolescence on ovarian function and reproductive outcomes. We reviewed the frequency of acute ovarian failure, premature menopause, live birth, stillbirth, spontaneous and therapeutic abortion and birth defects in the participants in the(More)
Treatment for Hodgkin's disease (HD) is associated with a variety of thyroid abnormalities, including hypothyroidism, hyperthyroidism, and thyroid neoplasms. Due to the small sample size and short follow-up time of most published studies, it has been difficult to appreciate the full extent of the problem and to characterize the interaction between various(More)
OBJECTIVE This study was done to define the extent of disease and evaluate the effect of staging and treatment variables on progression-free survival in patients with differentiated thyroid carcinoma who were less than 21 years of age at diagnosis. SUMMARY BACKGROUND DATA Differentiated thyroid cancer in young patients is associated with early regional(More)
Previous studies have indicated that thyroid cancer risk after a first childhood malignancy is curvilinear with radiation dose, increasing at low to moderate doses and decreasing at high doses. Understanding factors that modify the radiation dose response over the entire therapeutic dose range is challenging and requires large numbers of subjects. We(More)