A follow‐up study of electromagnetic interference of cellular phones on electronic medical equipment in the emergency department

Objective: Considering the growing use of cellular phones and the fast appearance of new phone models, the electromagnetic interference of currently popular cellular phones on electronic medical equipment was tested. Methods: Three Personal Communication System cellular phones were put at different distances from multiple electronic medical devices, the interference effect was observed and the electromagnetic field strength measured with a spectrum analyser. Results: Only two small pieces of equipment, the CO₂ airway adapter and the haemoglucostix meter were affected and then only when the phone was in very close proximity. Conclusion: Compared to the results of our study in 1997 testing Global System for Mobile Communication phones, the Personal Communication System phones generated less electromagnetic interference. However a much larger scaled study and an accurate international electromagnetic interference standard are recommended before any change in the current restrictive hospital policy on mobile phone usage could be recommended.     

Modeling the determinants of Medicaid home care payments for children with special health care needs: A structural equation model approach

BackgroundThe management of children with special needs can be very challenging and expensive.ObjectiveTo examine direct and indirect cost drivers of home care expenditures for this vulnerable and expensive population.MethodsWe retrospectively assessed secondary data on children, ages 4–20, receiving Medicaid Personal Care Services (PCS) (n = 2760). A structural equation model assessed direct and indirect effects of several child characteristics, clinical conditions and functional measures on Medicaid home care payments.ResultsThe mean age of children was 12.1 years and approximately 60% were female. Almost half of all subjects reported mild, moderate or severe ID diagnosis. The mean ADL score was 5.27 and about 60% of subjects received some type of rehabilitation services. Caseworkers authorized an average of 25.5 h of PCS support per week. The SEM revealed three groups of costs drivers: indirect, direct and direct + indirect. Cognitive problems, health impairments, and age affect expenditures, but they operate completely through other variables. Other elements accumulate effects (externalizing behaviors, PCS hours, and rehabilitation) and send them on a single path to the dependent variable. A few elements exhibit a relatively complex position in the model by having both significant direct and indirect effects on home care expenditures – medical conditions, intellectual disability, region, and ADL function.ConclusionsThe most important drivers of home care expenditures are variables that have both meaningful direct and indirect effects. The only one of these factors that may be within the sphere of policy change is the difference among costs in different regions.     

Reasons for Distress Among Burn Survivors at 6, 12, and 24 Months Postdischarge: A Burn Injury Model System Investigation

Objective

To identify important sources of distress among burn survivors at discharge and 6, 12, and 24 months postinjury, and to examine if the distress related to these sources changed over time.

Pain catastrophizing in dental patients: Implications for treatment management

Background”Pain catastrophizing“ refers to an exaggerated negative mental set brought to bear during an actual or anticipated painful experience. A patient's perception of a dental care experience as catastrophic can result not only in poor satisfaction with the therapy but also in avoidance of necessary treatments, resulting in the deterioration of oral health.MethodsThe author reviewed literature regarding pain catastrophizing regarding dental treatment as well as behavioral models related to catastrophizing.ResultsPeople who catastrophize show excessive attention to pain (rumination), exaggerate the threat value of pain (magnification) and feel unable to cope with their suffering (helplessness). During dental treatments, greater pain catastrophizing is associated with increased pain, dental anxiety and negative thoughts regarding pain and dental procedures.ConclusionsIt is important that clinicians identify dental patients who catastrophize so as to plan and provide the best treatment for their needs.Practical ImplicationsTo manage the care of patients who catastrophize, the clinician can actively probe patients' pain experience, help them reappraise threat, manipulate their attention to pain and improve dentist-patient communication.     

Prenatally-counseled congenital diaphragmatic hernia parents exhibit positive well-being before and after surgical repair

Background/Purpose

The purpose of this paper was to examine the effect of prenatal counseling in the Advanced Fetal Care Center (AFCC) on the well-being of parents of infants with congenital diaphragmatic hernia (CDH).

Methods

From 2008 through 2012, 26 mothers and fathers of surgically repaired CDH patients who received prenatal counseling at our institution, and 15 who received no prenatal counseling, each completed the Short-Form 36 version 1 (SF-36v1) at the appropriate time points: prenatal, two weeks, and six months post-surgery.

Results

Parents in both groups did not differ by demographic characteristics. Patients who received prenatal counseling had significantly longer ventilatory time and length of stay (LOS) in the ICU and in the hospital compared to those who did not receive prenatal counseling (all P < .01). Mothers and fathers had similar SF-36v1 mental and physical component summary (MCS, PCS) post-surgery scores when compared by counseling status. Prenatal MCS scores for mothers and fathers (47 vs. 41; P = .24) were similar to those at six months post-surgery (47 vs. 47; P = .90).

Conclusions

When hospital LOS was controlled between groups stratified by AFCC counseling status, MCS scores were comparable prenatally and were sustained at six months post-surgery for both parents. These findings may reflect the support services parents received beginning in the prenatal period.     

Ammonia metabolism,the brain and fatigue; revisiting the link

This review addresses the ammonia fatigue theory in light of new evidence from exercise and disease studies and aims to provide a view of the role of ammonia during exercise. Hyperammonemia is a condition common to pathological liver disorders and intense or exhausting exercise. In pathology, hyperammonemia is linked to impairment of normal brain function and the onset of the neurological condition, hepatic encephalopathy. Elevated blood ammonia concentrations arise due to a diminished capacity for removal via the liver and lead to increased exposure of organs, such as the brain, to the toxic effects of ammonia. High levels of brain ammonia can lead to deleterious alterations in astrocyte morphology, cerebral energy metabolism and neurotransmission, which may in turn impact on the functioning of important signalling pathways within the neuron. Such changes are believed to contribute to the disturbances in neuropsychological function, in particular the learning, memory, and motor control deficits observed in animal models of liver disease and also patients with cirrhosis. Hyperammonemia in exercise occurs as a result of an increased production by contracting muscle, through adenosine monophosphate (AMP) deamination (the purine nucleotide cycle) and branched chain amino acid (BCAA) deamination prior to oxidation. Plasma concentrations of ammonia during exercise often achieve or exceed those measured in liver disease patients, resulting in increased cerebral uptake. In this article we propose that exercise-induced hyperammonemia may lead to concomitant disturbances in brain function, potentially through similar mechanisms underpinning pathology, which may impact on performance as fatigue or reduced function, especially during extreme exercise.