OBJECTIVES: Describe rates of adherence for sickle cell disease (SCD) medications, identify patient and medication characteristics associated with nonadherence, and determine the effect of nonadherence and moderate adherence (defined as taking 60%-80% of doses) on clinical outcomes. METHODS:In February 2012 we systematically searched 6 databases for peer-reviewed articles published after 1940. We identified articles evaluating medication adherence among patients ,25 years old with SCD. Two authors reviewed each article to determine whether it should be included. Two authors extracted data, including medication studied, adherence measures used, rates of adherence, and barriers to adherence. RESULTS:Of 24 articles in the final review, 23 focused on 1 medication type: antibiotic prophylaxis (13 articles), iron chelation (5 articles), or hydroxyurea (5 articles). Adherence rates ranged from 16% to 89%; most reported moderate adherence. Medication factors contributed to adherence. For example, prophylactic antibiotic adherence was better with intramuscular than oral administration. Barriers included fear of side effects, incorrect dosing, and forgetting. Nonadherence was associated with more vaso-occlusive crises and hospitalizations. The limited data available on moderate adherence to iron chelation and hydroxyurea indicates some clinical benefit. CONCLUSIONS:Moderate adherence is typical among pediatric patients with SCD. Multicomponent interventions are needed to optimally deliver life-changing medications to these children and should include routine monitoring of adherence, support to prevent mistakes, and education to improve understanding of medication risks and benefits. Pediatrics
The recent literature has lacked cost estimates that may be readily translated into patient-level cost inputs for an economic model. Emerging therapies that may reduce the incidence of some diabetic complications will need to be scrutinized economically in today's cost-conscious environment. The cost estimates from this study provide one piece of the economic analysis needed to evaluate these new interventional therapies.
The DYT6 gene for primary torsion dystonia (PTD) was mapped to chromosome 8p21-q22 in two Amish-Mennonite families who shared a haplotype of marker alleles across a 40 cM linked region. The objective of this study was to narrow the DYT6 region, clinically characterize DYT6 dystonia in a larger cohort, and to determine whether DYT6 is associated with dystonia in newly ascertained multiplex families. We systematically examined familial Amish-Mennonite dystonia cases, identifying five additional members from the original families, as well as three other multiplex Amish-Mennonite families, and evaluated the known DYT6 haplotype and recombination events. One of the three new families carried the shared haplotype, whereas the region was excluded in the two other families, suggesting genetic heterogeneity for PTD in the Amish-Mennonites. Clinical features in the five newly identified DYT6 carriers were similar to those initially described. In contrast, affected individuals from the excluded families had a later age of onset (46.9 years vs. 16.1 years in the DYT6), and the dystonia was both more likely to be of focal distribution and begin in the cervical muscles. Typing of additional markers in the DYT6-linked families revealed recombinations that now place the gene in a 23 cM region surrounding the centromere. In summary, the DYT6 gene is in a 23 cM region on chromosome 8q21-22 and does not account for all familial PTD in Amish-Mennonites.
Children with SCD are at risk for serious morbidities and early mortality, yet efforts to assess and improve the quality of their care have been limited compared with other chronic childhood conditions. This set of 41 indicators can be used to assess quality of care and provide a starting point for quality-improvement efforts.
Pasteurized human donor milk use is rapidly emerging among US level 3 NICUs. Larger NICUs and those in the West and Midwest were more likely to use DM, while safety-net hospitals were less likely to use DM. Lack of knowledge by medical directors of accessibility, safety, and parental receptiveness may be barriers to DM use.
Nearly one-quarter of children and adolescents with SCD in New England are overweight or obese. Longitudinal studies are needed to determine the impact of elevated BMI on the morbidity and mortality of both children and adults with SCD.
OBJECTIVES: Vaso-occlusive episodes (VOEs) account for the majority of emergency department (ED) visits for children with sickle cell disease (SCD). We hypothesized that addressing key barriers to VOE care would improve receipt of analgesics and outcomes.METHODS: A quality improvement (QI) initiative was conducted from September 2010 to April 2014 to streamline VOE care in an urban pediatric ED. Four interventions were used: a standardized time-specific VOE protocol; intranasal fentanyl as the first parenteral pain medication; an SCD pain medication calculator; and provider and patient/family education. Data were collected for 3 outcome measures (mean time from triage to first parenteral opioid and admission/discharge decision, and proportion discharged from the ED); 1 process measure (mean time from triage to initiation of patient-controlled analgesia); and 4 balancing measures (mean time from triage to second intravenous opioid dose, 24-hour ED readmission, respiratory depression, and length of stay).RESULTS: There were 289 ED visits in the study period. Improvements were seen in mean time to: first dose of parenteral opioid (56 to 23 minutes); second opiate intravenous dose (106 to 83 minutes); admission and discharge decisions (163 to 109 minutes and 271 to 178 minutes, respectively); and initiation of patientcontrolled analgesia (216 to 141 minutes). The proportion discharged from the ED increased from 32% to 48% (x 2 = 6.5402, P = .01). No increase in 24-hour readmission, respiratory depression, or inpatient length of stay was observed.CONCLUSIONS: Using VOE-specific interventions, we significantly improved VOE care for children. Studies are needed to determine if these results can be replicated.
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