Publications by authors named "Timothy J D Ohlsen"

Background: Returning to school after allogeneic hematopoietic cell transplant (HCT) can improve quality of life and promote positive adjustment. However, this process may be challenging, and there is a limited understanding of school-aged children and adolescents' perspectives on this process.

Methods: We conducted semi-structured interviews over video with pediatric recipients of HCT (10-18 years of age at HCT; 1-7 years post HCT) who were treated at our institution and had returned to in-person school post HCT.

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Purpose: Cancer treatment often results in adverse financial consequences-also termed financial toxicity. To build upon limited research in pediatric oncology, we conducted a qualitative study exploring families' lived experiences with financial toxicity and their perspectives on potential mitigation strategies.

Methods: We conducted in-depth semi-structured interviews with a purposive sample of English- and Spanish-speaking family caregivers, 3-24 months following diagnosis.

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  • The ACCL0431 trial showed that sodium thiosulfate (STS) effectively reduces cisplatin-induced hearing loss in young patients aged 1-18.
  • A secondary analysis revealed that the incidence of hearing loss was significantly lower in those receiving STS (22.4%) compared to those who were only observed (54.0%).
  • The best protective effects of STS were seen in younger children (under 5 years) and those with specific cancers like neuroblastoma, indicating the need for tailored treatment strategies based on patient characteristics.
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  • Many patients and their families face money problems after getting diagnosed with blood cancers, which can make their situation worse.
  • Healthcare costs, living expenses, and low income contribute to these financial struggles.
  • A team of doctors, social workers, and researchers can work together to help patients manage these challenges better and improve their health and quality of life.
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  • Siblings of childhood cancer survivors face significant financial hardships in adulthood, with reported prevalence rates of 24% for behavioral, 35% for material, and 28% for psychological hardships.
  • Financial struggles include worries about medical bills, difficulty affording nutritious food, and forgoing necessary medical and dental care due to costs, with siblings showing higher rates of these issues compared to the general population.
  • Factors like being female, older, having chronic health conditions, low income, and lack of health insurance are linked to increased financial difficulties among these siblings, but the characteristics of the cancer survivors themselves did not correlate with these financial hardships.
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Importance: Cardiovascular disease is the leading noncancer cause of premature death among survivors of childhood cancer. Adult survivors of childhood cancer are largely managed by primary care practitioners (PCPs), and health care utilization patterns related to cardiovascular screening are not well described.

Objective: To examine screening and health care utilization among survivors of childhood cancer at high risk for cardiovascular complications.

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Purpose Of Review: Although cancer remains the leading nonaccidental cause of mortality in children, substantial advances in care have led to 5-year overall survival exceeding 85%. However, improvements in outcomes have not been uniform across malignancies or strata of social determinants of health. The current review highlights recent areas of advancement and anticipated directions for future progress.

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Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is an indolent non-Hodgkin lymphoma rarely seen in pediatric patients. MALT lymphoma most commonly involves the gastrointestinal tract or peri-orbital tissues, potentially as sequela of chronic antigenic stimulation or immune dysregulation. Rare cases of MALT lymphoma arising from the gynecologic tract have been reported in older adult patients.

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Ewing sarcoma is a small round blue cell tumor typically characterized by an EWSR1 rearrangement and expression of CD99 and NKX2.2, without expression of hematopoietic markers such as CD45. CD43 is an alternative hematopoietic immunohistochemical marker often utilized in the workup of these tumors and its expression typically argues against Ewing sarcoma.

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Background: Pleuropulmonary blastoma (PPB) is a rare mesenchymal malignancy of the lung and is the most common pulmonary malignancy in infants and children. Cystic PPB, the earliest form of PPB occurring from birth to approximately two years of age, is often mistaken for a congenital pulmonary airway malformation, as the two entities can be difficult to distinguish on imaging and pathology. Diagnosis of PPB should prompt workup for DICER1 syndrome, an autosomal dominant tumor predisposition syndrome.

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Background: Childhood cancer-related mortality differs by socioeconomic factors, but the impact of residential location, including rurality and neighborhood-level socioeconomic disadvantage, is not well-characterized.

Methods: This retrospective cohort study linked Washington State cancer registry data (1992-2013) to state birth (1974-2013) and death records (1992-2013) to identify residents <20 years diagnosed with cancer (n = 4,306). Census-based rural-urban commuting area codes and Area Deprivation Index (ADI) defined rural residence and neighborhood socioeconomic disadvantage at time of cancer diagnosis, respectively.

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Background: We implemented an observation unit and home oxygen therapy (OU-HOT) protocol at our children's hospital during the 2010-2011 winter season to facilitate earlier discharge of children hospitalized with bronchiolitis. An earlier study demonstrated substantial reductions in inpatient length of stay and costs in the first year after implementation.

Objective: Evaluate long-term reductions in length of stay and cost.

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