Impact of Respiratory Bacterial Codetection on Outcomes in Ventilated Infants With Bronchiolitis.

BACKGROUND: Viral bronchiolitis is a common cause of acute respiratory failure requiring intubation for infants. Bacterial respiratory tract infections can occur with bronchiolitis, although their prevalence and impact on outcomes are unclear, especially with increased use of noninvasive respiratory support. METHODS: This was a single-center retrospective cohort study of children <2 years old requiring intubation in the emergency department for bronchiolitis from 2012 to 2017 who had viral testing plus a lower respiratory culture obtained. We evaluated the impact of bacterial codetection (positive respiratory culture plus moderate or many polymorphonuclear neutrophils on Gram stain) on mechanical ventilation (MV) duration and intensive care unit length of stay using multivariable gamma regression. RESULTS: Of 149 patients enrolled, 52% had bacterial codetection. In adjusted analysis, patients with codetection had shorter MV duration [adjusted relative risk (aRR) 0.819, 95% confidence interval (CI): 0.69-0.98; marginal mean duration of 5.31 days (4.71-5.99) compared to 6.48 days (5.72-7.35) without codetection]. Patients with codetection had a shorter intensive care unit stay [aRR 0.806 (0.69-0.94); marginal mean length of stay 6.9 days (6.21-7.68) vs. 8.57 days (7.68-9.56) without codetection]. The association between codetection and duration of ventilation appears confined to those receiving earlier antibiotics (less than the median time) rather than later antibiotics [aRR 0.738 (0.56-0.95) for earlier vs. aRR 0.92 (0.70-1.18) for later]. CONCLUSIONS: Respiratory bacterial codetection is common and associated with shorter MV duration in infants requiring early intubation for bronchiolitis. Early antibiotics may contribute to these outcomes, but further multicenter studies are needed to understand the role of codetection and antibiotics on bronchiolitis outcomes.

Respiratory Pathogen Detection in Pediatric Patients Intubated for Presumed Infection.

OBJECTIVES: Respiratory syncytial virus (RSV) in pediatric patients has been associated with low risk of concomitant bacterial infection. However, in children with severe disease, it occurs in 22% to 50% of patients. As viral testing becomes routine, bacterial codetections are increasingly identified in patients with non-RSV viruses. We hypothesized, among patients intubated for respiratory failure secondary to suspected infection, there are similar rates of codetection between RSV and non-RSV viral detections. METHODS: This retrospective chart review, conducted over a 5-year period, included all patients younger than 2 years who required intubation secondary to respiratory failure from an infectious etiology in a single pediatric emergency department. Patients intubated for noninfectious causes were excluded. RESULTS: We reviewed 274 patients, of which 181 had positive viral testing. Of these, 48% were RSV-positive and 52% were positive for viruses other than RSV. Codetection of bacteria was found in 76% (n = 65; 95% confidence interval [CI], 66%, 84%) of RSV-positive patients and 66% (n = 63, 95% CI: 57%, 76%) of patients positive with non-RSV viruses. Among patients with negative viral testing, 33% had bacterial growth on lower respiratory culture. Male sex was the only patient-related factor associated with increased odds of codetection (odds ratio [OR], 2.2; 95% CI, 1.08-4.38). The odds of codetection between RSV-positive patients and non-RSV viruses were not significantly different (OR, 1.3; 95% CI, 0.62-2.71). CONCLUSIONS: Bacterial codetection is common and not associated with anticipated patient-related factors or with a specific virus. These results suggest consideration of empiric antibiotics in infants with respiratory illness requiring intubation.

Children's Experiences of Epilepsy: A Systematic Review of Qualitative Studies.

CONTEXT: Epilepsy is a common and severe neurologic disease associated with increased mortality, seizure-related injury, and adverse psychological and quality-of-life outcomes. OBJECTIVE: To describe the perspectives of children and adolescents with epilepsy. DATA SOURCES: Medline, Embase, PsycINFO, and CINAHL from inception to August 2015. STUDY SELECTION: Qualitative studies on children's experiences of epilepsy. DATA EXTRACTION: Results from primary studies. We used thematic synthesis to analyze the findings. RESULTS: Forty-three articles involving 951 participants aged 3 to 21 years across 21 countries were included. We identified 6 themes: loss of bodily control (being overtaken, susceptibility to physical harm, fragility of the brain, alertness to mortality, incapacitating fatigue), loss of privacy (declarative disease, humiliating involuntary function, unwanted special attention, social embarrassment of medicine-taking), inescapable inferiority and discrimination (vulnerability to prejudice, inability to achieve academically, consciousness of abnormality, parental shame, limiting social freedom), therapeutic burden and futility (unattainable closure, financial burden, overwhelming life disruption, exhaustion from trialing therapies, insurmountable side effects, awaiting a fabled remission), navigating health care (empowerment through information, valuing empathetic and responsive care, unexpected necessity of transition, fragmented and inconsistent care), and recontextualizing to regain normality (distinguishing disease from identity, taking ownership, gaining perspective and maturity, social and spiritual connectedness). LIMITATIONS: Non-English articles were excluded. CONCLUSIONS: Children with epilepsy experience vulnerability, disempowerment, and discrimination. Repeated treatment failure can raise doubt about the attainment of remission. Addressing stigma, future independence, and fear of death may improve the overall well-being of children with epilepsy.

Motivations, Challenges, and Attitudes to Self-management in Kidney Transplant Recipients: A Systematic Review of Qualitative Studies.

BACKGROUND: Kidney transplantation offers better outcomes compared to dialysis, but requires patients to adhere to an ongoing and complex self-management regimen. Medication nonadherence remains a leading cause of transplant loss, and inadequate self-management undermines transplantation and other health outcomes. We aimed to describe kidney transplant recipients' motivations, challenges, and attitudes toward self-management. STUDY DESIGN: Systematic review and thematic synthesis of qualitative studies. SETTING & POPULATION: Kidney transplant recipients. SEARCH STRATEGY & SOURCES: MEDLINE, EMBASE, PsycINFO, and CINAHL were searched to October 2014. ANALYTICAL APPROACH: Thematic synthesis. RESULTS: 50 studies involving 1,238 recipients aged 18 to 82 years across 19 countries were included. We identified 5 themes: empowerment through autonomy (achieving mastery, tracking against tangible targets, developing bodily intuition, routinizing and problem solving, and adaptive coping), prevailing fear of consequences (inescapable rejection anxiety, aversion to dialysis, minimizing future morbidity, trivialization and denial, and defining acceptable risks), burdensome treatment and responsibilities (frustrating ambiguities, inadvertent forgetfulness, intrusive side effects, reversing ingrained behaviors, and financial hardship), overmedicalizing life (dominating focus, evading patienthood, and succumbing to burnout), and social accountability and motivation (demonstrating gratitude toward medical team, indebtedness to donor, and peer learning). LIMITATIONS: Non-English articles were excluded. CONCLUSIONS: Self-efficacy and social accountability are motivators for self-management, although adherence can be mentally and physically taxing. Multicomponent interventions incorporating personalized care planning, education, psychosocial support, decision aids, and self-monitoring tools may foster self-management capacity and improve transplantation outcomes.

Children's experiences of cystic fibrosis: a systematic review of qualitative studies.

BACKGROUND AND OBJECTIVE: Cystic fibrosis (CF) is a common life-shortening genetic disease and is associated with poor psychosocial and quality of life outcomes. The objective of this study was to describe the experiences and perspectives of children and adolescents with CF to direct care toward areas that patients regard as important. METHODS: MEDLINE, Embase, PsycINFO, and Cumulative Index to Nursing and Allied Health Literature were searched from inception to April 2013. We used thematic synthesis to analyze the findings. RESULTS: Forty-three articles involving 729 participants aged from 4 to 21 years across 10 countries were included. We identified 6 themes: gaining resilience (accelerated maturity and taking responsibility, acceptance of prognosis, regaining control, redefining normality, social support), lifestyle restriction (limited independence, social isolation, falling behind, physical incapacity), resentment of chronic treatment (disempowerment in health management, unrelenting and exhausting therapy, inescapable illness), temporal limitations (taking risks, setting achievable goals, valuing time), emotional vulnerability (being a burden, heightened self-consciousness, financial strain, losing ground, overwhelmed by transition), and transplant expectations and uncertainty (confirmation of disease severity, consequential timeliness, hope and optimism). CONCLUSIONS: Adolescents and children with CF report a sense of vulnerability, loss of independence and opportunities, isolation, and disempowerment. This reinforces the importance of the current model of multidisciplinary patient-centered care that promotes shared decision-making, control and self-efficacy in treatment management, educational and vocational opportunities, and physical and social functioning, which can lead to optimal treatment, health, and quality of life outcomes.

Kawasaki Disease: A Clinician's Update.

Aims. Kawasaki disease is an acute systemic vasculitis and is the most common cause of acquired heart disease in children in the developed world. This review aims to synthesise recent insights into the disease and provide an update for clinicians on diagnostic and treatment practices. Methods. We conducted a review of the literature exploring epidemiology, aetiology, diagnosis, and management of Kawasaki disease. We searched MEDLINE, Medline In-Process, Embase, Google Scholar, and reference lists of relevant articles. Conclusions. Kawasaki disease is a febrile vasculitis which progresses to coronary artery abnormalities in 25% of untreated patients. The disease is believed to result from a genetically susceptible individual's exposure to an environmental trigger. Incidence is rising worldwide, and varies widely across countries and within different ethnic groups. Diagnosis is based on the presence of fever in addition to four out of five other clinical criteria, but it is complicated by the quarter of the Kawasaki disease patients with "incomplete" presentation. Treatment with intravenous immunoglobulin within ten days of fever onset improves clinical outcomes and reduces the incidence of coronary artery dilation to less than 5%. Given its severe morbidity and potential mortality, Kawasaki disease should be considered as a potential diagnosis in cases of prolonged paediatric fever.

Recombination can cause telomere elongations as well as truncations deep within telomeres in wild-type Kluyveromyces lactis cells.

In this study, we examined the role of recombination at the telomeres of the yeast Kluyveromyces lactis. We demonstrated that an abnormally long and mutationally tagged telomere was subject to high rates of telomere rapid deletion (TRD) that preferentially truncated the telomere to near-wild-type size. Unlike the case in Saccharomyces cerevisiae, however, there was not a great increase in TRD in meiosis. About half of mitotic TRD events were associated with deep turnover of telomeric repeats, suggesting that telomeres were often cleaved to well below normal length prior to being reextended by telomerase. Despite its high rate of TRD, the long telomere showed no increase in the rate of subtelomeric gene conversion, a highly sensitive test of telomere dysfunction. We also showed that the long telomere was subject to appreciable rates of becoming elongated substantially further through a recombinational mechanism that added additional tagged repeats. Finally, we showed that the deep turnover that occurs within normal-length telomeres was diminished in the absence of RAD52. Taken together, our results suggest that homologous recombination is a significant process acting on both abnormally long and normally sized telomeres in K. lactis.