Publications by authors named "Karen Kalinyak"

To test the hypothesis that caregivers' or adult participants' low ratings of provider communication are associated with more hospital admissions among adults and children with sickle cell disease (SCD), respectively. Secondarily, we determined whether there was an association between the caregivers' or participants' health literacy and rating of providers' communication. Primary data were collected from participants through surveys between 2014 and 2016, across six sickle cell centers throughout the U.

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Objective: Hospital admissions are significant events in the care of individuals with sickle cell disease (SCD) due to associated costs and potential for quality of life compromise.

Methods: This cross-sectional cohort study evaluated risk factors for admissions and readmissions between October 2014 and March 2016 in adults with SCD (n = 201) and caregivers of children with SCD (n = 330) at six centres across the U.S.

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Objectives: Outpatient care is critical in the management of chronic diseases, including sickle cell disease (SCD). Risk factors for poor adherence with clinic appointments in SCD are poorly defined. This exploratory study evaluated associations between modifying variables from the Health Belief Model and missed appointments.

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Background: Approximately 100,000 persons with sickle cell disease (SCD) live in the United States, including 15,000 in the Midwest. Unfortunately, many patients experience poor health outcomes due to limited access to primary care providers (PCPs) who are prepared to deliver evidence-based SCD care. Sickle Treatment and Outcomes Research in the Midwest (STORM) is a regional network established to improve care and outcomes for individuals with SCD living in Indiana, Illinois, Michigan, Minnesota, Ohio, and Wisconsin.

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Stroke, a devastating complication of sickle cell anemia (SCA), can cause irreversible brain injury with physical and cognitive deficits. Transcranial Doppler ultrasonography (TCD) is a non-invasive tool for identifying children with SCA at highest risk of stroke. National guidelines recommend that TCD screening begin at age 2 years, yet there is research to suggest less than half of young children undergo screening.

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The lifespan of patients with sickle-cell disease (SCD) continues to increase, and most affected individuals in high-resource countries now live into adulthood. This necessitates a successful transition from pediatric to adult health care. Care for transitioning patients with SCD often falls to primary care providers who may not be fully aware of the many challenges and issues faced by patients and the current management strategies for SCD.

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Sickle cell disease (SCD) results in neuropsychological complications that place adolescents at higher risk for limited educational achievement. A first step to developing effective educational interventions is to understand the impact of SCD on school performance. The current study assessed perceptions of school performance, SCD interference and acceptability of educational support strategies in adolescents with SCD.

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Objective: Using quality improvement methodology, our goal was to develop and implement individualized home pain management plans (HPMP) that included pharmacologic as well as non-pharmacologic strategies for children with sickle cell disease (SCD). We hypothesized that successfully implemented HPMPs would have an impact on Emergency Department (ED) use, decreasing ED visits for uncomplicated SCD pain episodes.

Methods: A multidisciplinary quality improvement team developed a questionnaire to assess the frequency, location and severity of a patient's pain during a routine, comprehensive visit in order to help the patient and family develop an effective pain management strategy using both pharmacologic and non-pharmacologic actions.

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Background: Silent cerebral infarcts are the most common neurologic injury in children with sickle cell anemia and are associated with the recurrence of an infarct (stroke or silent cerebral infarct). We tested the hypothesis that the incidence of the recurrence of an infarct would be lower among children who underwent regular blood-transfusion therapy than among those who received standard care.

Methods: In this randomized, single-blind clinical trial, we randomly assigned children with sickle cell anemia to receive regular blood transfusions (transfusion group) or standard care (observation group).

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Children with sickle cell anemia have a higher-than-expected prevalence of poor educational attainment. We test two key hypotheses about educational attainment among students with sickle cell anemia, as measured by grade retention and use of special education services: (1) lower household per capita income is associated with lower educational attainment; (2) the presence of a silent cerebral infarct is associated with lower educational attainment. We conducted a multicenter, cross-sectional study of cases from 22 U.

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Research indicates that the quality of the adherence assessment is one of the best predictors for improving clinical outcomes. Newer technologies represent an opportunity for developing high quality standardized assessments to assess clinical outcomes such as patient experience of care but have not been tested systematically in pediatric sickle cell disease (SCD). The goal of the current study was to pilot an interactive web-based tool, the Take-Charge Program, to assess adherence to clinic visits and hydroxyurea (HU), barriers to adherence, solutions to overcome these barriers, and clinical outcomes in 43 patients with SCD age 6-21 years.

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The most common form of neurologic injury in sickle cell anemia (SCA) is silent cerebral infarction (SCI). In the Silent Cerebral Infarct Multi-Center Clinical Trial, we sought to identify risk factors associated with SCI. In this cross-sectional study, we evaluated the clinical history and baseline laboratory values and performed magnetic resonance imaging of the brain in participants with SCA (HbSS or HbSβ° thalassemia) between the ages of 5 and 15 years with no history of overt stroke or seizures.

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Objective: To assess the effects of chronic erythrocyte transfusions on prevalence of sonographic incidence of organ damage in children with sickle cell anemia (SCA).

Study Design: Children (N=148; mean age, 13.0 years) with SCA, receiving chronic transfusions (average, 7 years), underwent abdominal sonography at 25 institutions.

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This article describes the planning, implementation, and evaluation of Research and Education Day, an event designed to promote education and awareness of sickle cell disease (SCD), while also fostering and increasing participation by families in research studies. Quantitative and qualitative evaluation data (tracking of participant attendance and participation in research studies; program evaluation surveys) indicate that program goals were achieved. Results show that event attendance, research participation and retention, and community volunteerism has increased exponentially over the 8-year history of the event.

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Background: Respiratory infections are associated with clinically significant illness in patients with sickle cell disease (SCD). The 2009 H1N1 pandemic was perceived as a significant threat to this population.

Methods: We undertook a chart review of all patients with SCD followed at our institution to identify those with confirmed H1N1 infection.

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In a phase-II multi-centre double-blinded trial, we evaluated haematological effects of oral hydroxycarbamide (HC) and magnesium (Mg) in patients with HbSC, aged 5-53 years old. Subjects were randomized to HC + placebo, Mg + placebo, HC + Mg, or placebo + placebo. The primary endpoint was the proportion of hyperdense red blood cells after 8 weeks.

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Context: Sickle cell anemia (SCA) is a chronic illness causing progressive deterioration in quality of life. Brain dysfunction may be the most important and least studied problem affecting individuals with this disease.

Objective: To measure neurocognitive dysfunction in neurologically asymptomatic adults with SCA vs healthy control individuals.

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Purpose: The purpose of this study was to examine perceived barriers to clinic attendance and strategies to overcome these barriers for adolescents with sickle cell disease.

Materials And Methods: This was a 2-phased study, which used focus groups (n=13) and individual semistructured interviews (n=32) with adolescent patients (aged 13 to 21 y) from 3 pediatric sickle cell clinics in the Midwest.

Results: Adolescents identified competing activities, health status, patient-provider relationships, adverse clinic experiences, and forgetting as barriers to clinic attendance.

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Chronic transfusions to maintain haemoglobin S (HbS) < or =30% are the mainstay of treatment for children with sickle cell anaemia (SCA) and previous stroke. This HbS target is often hard to maintain, however, and values achieved in current practice are unknown. In preparation for the Phase III Stroke With Transfusions Changing to Hydroxyurea (SWiTCH) trial, we collected data on 295 children with SCA and stroke who received transfusions at 23 institutions.

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Iron-overload associated endocrinopathy is the most frequently reported complication of chronic transfusion therapy in patients with thalassaemia (Thal). This study compared iron-overloaded subjects with Thal (n = 142; 54%M; age 25.8 +/- 8.

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Purpose: To determine if rituximab, an anti-CD20 monoclonal antibody, reduces cerebrospinal fluid (CSF) B-cell expansion in opsoclonus-myoclonus syndrome (OMS) and results in clinical improvement.

Methods: Sixteen children with OMS and increased % CD20 B-cells in CSF received 4 rituximab infusions (375 mg/m IV) as add-on therapy to corticotropin (ACTH), intravenous immunoglobulins, or both, and were reevaluated 6 months later. Outcome measures were clinical (motor function, behavior, sleep) and immunologic (CSF and blood immunophenotype and Ig levels).

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