Fischer, Philip R.

Antimicrobial stewardship programs seek to improve patient outcomes, reduce cost, and hinder development of antimicrobial resistance. Collection of inpatient antimicrobial use data is foundational to these programs, and decisions to initiate and discontinue antibiotics are potentially amenable to improvement. In order to better understand our current practices and with a view toward improved antimicrobial stewardship, we reviewed charts of previously healthy children to age 16 years hospitalized with fever (without an evident localized source) and/or other findings suggestive of serious bacterial infection. Of 105 patients (18% 0-2 months of age, 42% 3-12 months, 25% 2-5 years), 100 (95%) received antibiotics, 72% for more than 2 days. Of 98 patients with negative body fluid cultures, 23 received antibiotics for 2 days or less, and 70 received antimicrobial therapy for more than 2 days. Focusing on selective initiation and earlier discontinuation of antimicrobial therapy in hospitalized children might reduce unnecessary antibiotic use.

AbstractObjectiveYouth with chronic orthostatic intolerance (OI) can experience significant physical, social, and academic functional debilitation. Previous studies have indicated associations among symptom severity, psychosocial factors, and functional disability. However, empirically tested models explaining how different medical and psychosocial factors may contribute to functional disability are lacking. The current cross-sectional study aimed to evaluate mediation, moderation, and additive models of the effect of physical symptoms and psychological distress on functional disability.MethodsOne hundred and sixty-five youth (13–22 years old) undergoing medical evaluation of chronic OI symptoms completed measures of autonomic dysfunction symptom severity, depressive and anxiety symptoms, and functional disability. Models were evaluated using tests of indirect effects and linear and logistic regression analyses.ResultsResults supported the mediation and additive effects models for depressive symptoms. Mediation, moderation, and additive models for hypothesized effects of anxiety symptoms were not supported.ConclusionsResults provide preliminary support for models in which OI symptoms affect functional debility via their effects on mood and in which depressive symptoms have unique and additive effects on functioning. Findings lay the foundation for longitudinal and experimental evaluation of biopsychosocial models of functional disability in youth with chronic OI and related conditions. Implications include the importance of a biopsychosocial conceptualization of OI symptoms and debility as a complex interplay of factors rather than as a purely physiological or psychological process.

Among adolescents with fatigue and postural dizziness, it is unclear how health behaviors and emotional distress relate to the presence of excessive postural tachycardia. We prospectively evaluated adolescents aged 13-22 years presenting with symptoms suggestive of autonomic dysfunction between September 2017 and December 2018. Patients underwent standard 10-minute, 70-degree head-up tilt testing. Clinician diagnoses and recommendations were recorded from the medical record. Patients completed validated self-report measures of lifestyle factors, autonomic symptoms, depression, anxiety, and functional disability. Of 179 patients, 58 were diagnosed with postural orthostatic tachycardia syndrome and 59 had excessive postural tachycardia, with 90.5% concordance between the 2 groups. Presence of excessive postural tachycardia was associated with greater baseline fluid intake and likelihood of medication prescription in their treatment plan. Medication findings were replicated for postural orthostatic tachycardia syndrome diagnosis. Presence of excessive postural tachycardia or postural orthostatic tachycardia syndrome did not differentiate patients on perceived symptom severity, emotional distress, disability, or health behaviors but did appear to determine treatment recommendations.