Publications by authors named "Ambrose T"

Objective: Auditory brainstem response (ABR) testing is the gold standard for diagnosis of hearing loss in children who cannot complete behavioral audiometry. Testing under general anesthesia is often recommended when natural sleep ABR and/or behavioral audiometry are unsuccessful. This study aims to determine which demographic and patient factors serve as barriers to receiving this diagnostic testing.

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Introduction: Pediatric hearing loss can significantly impact speech, language, social, and educational development. Providing access to speech and environmental sounds using amplification devices, such as hearing aids, can help improve developmental outcomes. However, timely rehabilitation and intervention may be delayed due to limited access to resources, further prolonging the adverse effects of childhood hearing loss.

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Objective: Operating room (OR) sounds may surpass noise exposure thresholds and induce hearing loss. Noise intensity emitted by various surgical instruments during common pediatric otolaryngologic procedures were compared at the ear-level of the surgeon and patient to evaluate the need for quality improvement measures.

Study Design: Cross-sectional study.

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Article Synopsis
  • The study aimed to explore the relationship between cochleovestibular anatomy and hearing results in children with missing or underdeveloped cochlear nerves who underwent cochlear implantation (CI).
  • Researchers conducted a retrospective review of cases, assessing children through MRI scans and comparing their hearing ability before and after CI.
  • Findings indicated that despite the absence or hypoplasia of cochlear nerves, children experienced significant improvements in speech perception post-implantation, highlighting that CI can still be an effective treatment option in certain cases.
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Objective: This study sought to determine the utility of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) in accurately distinguishing genuine dissociative identity disorder (DID) patients from coached and uncoached DID simulators.

Method: DID patients ( = 34) who were diagnosed using the Structured Clinical Interview for -Dissociative Disorders were recruited from inpatient and outpatient settings. Coached ( = 25) and uncoached ( = 64) simulator groups were recruited from a Mid-Atlantic university.

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Objectives: The purpose of this study is to evaluate for discrepancies in diagnostic auditory brainstem responses (ABR) between Children's National Hospital (CNH), a pediatric medical center, and outside facilities (OSF) that referred patients to CNH for confirmatory evaluation. Such discrepancies impact early hearing detection and intervention (EHDI) timelines.

Methods: A retrospective chart review was conducted from an internal database of patients who underwent diagnostic ABR from 2017 to 2021.

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Background: The United States Virgin Islands (USVI) Department of Health (DOH) conducted a second Zika health brigade (ZHB) in 2021 to provide recommended Zika-related pediatric health screenings, including vision, hearing, neurologic, and developmental screenings, for children in the USVI. This was replicated after the success of the first ZHB in 2018, which provided recommended Zika-related pediatric health screenings to 88 infants and children exposed to Zika virus (ZIKV) during pregnancy.

Methods: Ten specialty pediatric care providers were recruited and traveled to the USVI to conduct the screenings.

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Objectives: We aimed to determine whether changes in acute severe colitis (ASC) management have translated to improved outcomes and to develop a simple model predicting steroid non-response on admission.

Design: Outcomes of 131 adult ASC admissions (117 patients) in Oxford, UK between 2015 and 2019 were compared with data from 1992 to 1993. All patients received standard treatment with intravenous corticosteroids and endoscopic disease activity scoring (Ulcerative Colitis Endoscopic Index of Severity (UCEIS)).

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Background: Patient-reported outcome measures [PROMs] are key to documenting outcomes that matter most to patients and are increasingly important to commissioners of health care seeking value. We report the first series of the ICHOM Standard Set for Inflammatory Bowel Disease [IBD].

Methods: Patients treated for ulcerative colitis [UC] or Crohn's disease [CD] in our centre were offered enrolment into the web-based TrueColours-IBD programme.

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Importance: Research has suggested that early cochlear implantation is associated with improved language outcomes. Select studies demonstrate that this translates into a higher quality of life following implantation. Previous work from our group has shown that underinsurance represents a risk factor for worsened auditory and language outcomes for implantees.

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Agenesis of the corpus callosum is a brain malformation that can occur in isolation or in conjunction with other congenital or developmental defects. The clinical sequelae of this condition include epilepsy, cognitive deficits, developmental delay, and various neurological and psychiatric disorders. Here we present the case of a patient with congenital complete agenesis of the corpus callosum and medically refractory epilepsy who underwent stereoelectroencephalography.

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The objective of the study was to describe the complexity of diagnosis and evaluation of Zika-exposed pregnant women/fetuses and infants in a U.S. Congenital Zika Program.

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Background: The direct effect of the coronavirus disease 2019 (COVID-19) pandemic on patients with intestinal failure (IF) has not been described.

Methods: We conducted a nationwide study of UK IF centers to evaluate the infection rates, presentations, and outcomes in patients with types 2 and 3 IF.

Results: A total of 45 patients with IF contracted COVID-19 between March and August 2020; this included 26 of 2191 (1.

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Background: In Tanzania, the uptake of optimal doses (≥ 3) of sulfadoxine-pyrimethamine for intermittent preventive treatment of malaria (IPTp-SP) during pregnancy has remained below the recommended target of 80%. Therefore, this study aimed to investigate the predictors for the uptake of optimal IPTp-SP among pregnant women in Tanzania.

Methods: This study used data from the 2015-16 Tanzania demographic and health survey and malaria indicator survey (TDHS-MIS).

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Background/aims: Refeeding syndrome can result following excessive feeding of malnourished patients. The syndrome remains poorly defined but encompasses a range of adverse effects including electrolyte shifts, hyperglycaemia and other less well-defined phenomena. There are additional risks of underfeeding malnourished individuals.

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Article Synopsis
  • Tissue-resident memory T (T) cells are important for immune responses related to infection, cancer, and autoimmunity, but their functionality in the human intestine is not well understood.
  • This study analyzes donor-derived T cells from intestinal transplant recipients, revealing two distinct transcriptional states of CD8 T cells based on the expression of specific genes (ITGAE and ITGB2).
  • The findings highlight differences in the functions of these CD8 T cell populations, with one group showing better cytokine production and the other exhibiting higher levels of granzyme, alongside similarities found in intestinal CD4 T cells.
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The Oman-United Arab Emirates ophiolite has been used extensively to document the geological processes that form oceanic crust. The geometry of the ophiolite, its extension into the Gulf of Oman, and the nature of the crust that underlies it are, however, unknown. Here, we show the ophiolite forms a high velocity, high density, >15 km thick east-dipping body that during emplacement flexed down a previously rifted continental margin thereby contributing to subsidence of flanking sedimentary basins.

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Objective: This study investigated associations between stress (general stress, parenting distress, and household chaos) and adiposity among parents of young children.

Methods: The sample consisted of 49 mothers and 61 fathers from 70 families with young children living in Ontario, Canada. Linear regression using generalized estimating equations was used to investigate associations between stress measures and BMI, waist circumference (WC), waist to height ratio (WHtR), and percent fat mass.

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Introduction: Intestinal failure (IF) and intestinal transplant (ITx) are associated with poor quality of life (QoL). Disease-specific assessment of QoL for IF and ITx is challenging, owing to the different problems encountered. We have sought to compare QoL pre-ITx with post-ITx and have compared generic QoL with a stable IF population.

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Background: Home-based lifestyle behaviour interventions show promise for treating and preventing childhood obesity. According to family theories, engaging the entire family unit, including parents, to change their family behaviour and dynamics may be necessary to prevent the development of childhood obesity. However, little is known about how these interventions, which may change the family dynamics and weight-related behaviours of parents, affect weight outcomes in parents.

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Non-typhoidal Salmonella (NTS) are highly prevalent food-borne pathogens. Recently, a highly invasive, multi-drug resistant S. Typhimurium, ST313, emerged as a major cause of bacteraemia in children and immunosuppressed adults, however the pathogenic mechanisms remain unclear.

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Cannabis sativa and its extracts have been used for centuries, both medicinally and recreationally. There is accumulating evidence that exogenous cannabis and related cannabinoids improve symptoms associated with inflammatory bowel disease [IBD], such as pain, loss of appetite, and diarrhoea. In vivo, exocannabinoids have been demonstrated to improve colitis, mainly in chemical models.

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Background: With 1 in 4 Canadian preschoolers considered overweight or obese, identifying risk factors for excess weight gain and developing effective interventions aimed at promoting healthy weights and related behaviours among young children have become key public health priorities. Despite the need for this research, engaging and maintaining participation is a critical challenge for long-term, family-based studies. The aim of this study is to describe the implementation and evaluation of a parent-only advisory council designed to engage participants in the implementation and evaluation of a longitudinal, family-based obesity prevention intervention.

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