A Micro-longitudinal Approach to Measuring Medication Adherence in Pediatric Inflammatory Bowel Diseases.

Measuring medication adherence in pediatric inflammatory bowel diseases (IBD) is challenging because of complexities in personalized treatment regimens and increased use of biologic mono- and combination therapy. Objective measurement of adherence via electronic monitoring is the gold standard; however, it is not useful for daily monitoring when multiple medication formulations (eg, pills, injections, infusions) as well as vitamins/supplements are prescribed. Although validated subjective measures are available, they are not designed for daily use and do not capture day-to-day variation in adherence. In the following article, a new approach to measuring adherence regardless of a patient's specific medication regimen is presented. Utilizing a micro-longitudinal design, 30 days of daily self-reported medication adherence data was collected from youth with IBD via text message. Results reflect mean adherence rates from studies utilizing pill counts and electronic monitoring, suggesting promise for the use of self-reported daily diaries to assess medication adherence in pediatric IBD.

Perceived stigma, illness uncertainty, and depressive symptoms in youth with inflammatory bowel disease: The moderating effect of mindfulness.

Perceived illness stigma is associated with increased depressive symptoms in youth with inflammatory bowel disease (IBD), but the mechanisms by which stigma influences emotional adjustment remain unclear. It is possible that youth with IBD who are more present-focused and better able to come to terms with aspects of their disease that are less controllable (i.e. are mindful) may develop more adaptive strategies when facing illness uncertainty, resulting in more positive emotional adjustment. The present study examined the indirect association between illness stigma, illness uncertainty, depressive symptoms, and the potential moderating effect of mindfulness on this process. One hundred and seven youth (56 female, 51 male; Mage = 14.73) with IBD completed measures of illness stigma (SS-C), illness uncertainty (CUIS), depressive symptoms (CDI-2), and trait mindfulness (MAAS-A). Analyses revealed a significant SS-C → CUIS → CDI-2 indirect path (ß = .686, 95% CI = .1346 to 1.489), which was moderated by MAAS-A (ß = -.445, 95% CI = -.972 to -.083). Results indicate that the SS-C → CUIS → CDI-2 indirect path was significant at low, but not medium or high, levels of MAAS-A. Illness uncertainty appears to be a potential route through which stigma impacts emotional adjustment in youth with IBD, particularly for youth characterized by low mindfulness. Clinical interventions that emphasize mindfulness training along with acknowledgement/acceptance of IBD illness factors may help diminish the negative effects of stigma and illness uncertainty on adjustment in this population.

Adherence to Nutritional Supplementation in Cystic Fibrosis.

PURPOSE: The purpose of this study was to examine patterns of adherence to a novel dietary supplement in pediatric cystic fibrosis. Adherence to dietary supplementation in cystic fibrosis is challenging, and examination of patterns of adherence behavior over time is needed to better characterize subgroups of patients who need self-management support. DESIGN AND METHODS: We prospectively examined adherence to Lym-X-Sorb™ (LXS), an organized lipid matrix dietary supplementation for patients with cystic fibrosis (CF) and pancreatic insufficiency (PI), over a 12-month period. Adherence for participants aged 5-17 years with CF and PI (N = 109) was monitored monthly via supplement packet counts. Group-based trajectory modeling was employed to examine patterns in adherence behavior over time. RESULTS: Four distinct trajectories best characterized adherence in this sample, with 18% of participants demonstrating near perfect adherence, 42% demonstrating good adherence (at or above 80%), 16% demonstrating poor adherence that declined over time, and 24% demonstrating significant non-adherence (< 30%). CONCLUSIONS: Some patients with CF and PI who are prescribed nutritional supplements will require intensive, individualized behavioral intervention to enhance adherence. Identifying patients who will have difficulty adhering to dietary interventions may result in better treatment-to-patient matching and improved adherence promotion efforts. PRACTICE IMPLICATIONS: Assessment of adherence to dietary supplementation over time can identify patients at risk for continued difficulty with self-management and provide opportunities for early intervention.

Choline Supplementation With a Structured Lipid in Children With Cystic Fibrosis: A Randomized Placebo-Controlled Trial.

BACKGROUND: Choline depletion is seen in cystic fibrosis (CF) and pancreatic insufficiency in spite of enzyme treatment and may result in liver, fatty acid, and muscle abnormalities. This study evaluated the efficacy and safety of an easily absorbed choline-rich structured lipid (LYM-X-SORB™ [LXS]) to improve choline status. METHODS: Children with CF and pancreatic insufficiency were randomized to LXS or placebo in a 12-month double blind trial. Dietary choline intake, plasma cholines, plasma and fecal phospholipids, coefficient of fat absorption, pulmonary function, growth status, body composition, and safety measures were assessed. Magnetic resonance spectroscopy for calf muscle choline and liver fat were assessed in a subgroup and compared with a healthy comparison group matched for age, sex, and body size. RESULTS: A total of 110 subjects were enrolled (age 10.4 ±â€Š3.0 years). Baseline dietary choline, 88% recommended, increased 3-fold in the LXS group. Plasma choline, betaine, and dimethylglycine increased in the LXS but not placebo (P = 0.007). Plasma lysophosphatidylcholine and phosphatidylcholine increased, and fecal phosphatidylcholine/phosphatidylethanolamine ratio decreased (P ≤ 0.05) in LXS only, accompanied by a 6% coefficient of fat absorption increase (P = 0.001). Children with CF had higher liver fat than healthy children and depleted calf muscle choline at baseline. Muscle choline concentration increased in LXS and was associated with improvement in plasma choline status. No relevant changes in safety measures were evident. CONCLUSIONS: LXS had improved choline intake, plasma choline status, and muscle choline stores compared with placebo group. The choline-rich supplement was safe, accepted by participants, and improved choline status in children with CF.