Publications by authors named "Sydney Martin"

Article Synopsis
  • A systematic review was conducted to evaluate the effectiveness of SARS-CoV-2 nucleocapsid antigen in blood (antigenemia) as a diagnostic test, highlighting inconsistent findings across various studies.
  • The review included 16 studies, finding high sensitivity (83%) and specificity (98%) in the early days of symptoms, but noted that antigenemia is less common after 28 days.
  • The authors call for better-designed studies to assess the clinical relevance of antigenemia, particularly for immunocompromised patients, due to current limitations in study quality and the absence of data from the Omicron variant period.
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COVID-19 infections have been linked with multiple neurological manifestations. One of the infrequent complications of post-COVID-19 infection is trigeminal neuropathy. Despite its infrequency, few cases of trigeminal neuropathy following COVID-19 infection have been documented in the literature.

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Background And Objectives: Sex chromosome trisomy (SCT) is a common chromosomal abnormality associated with increased risks for early developmental delays and neurodevelopmental disorders later in childhood. Our objective was to quantify the spectrum of early developmental milestones in SCT. We hypothesized later milestone achievement in SCT than the general population.

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Ear pits are a common congenital abnormality that is incidentally found on routine examinations. However, it is not well documented how many are found outside of their classical location or if these ectopic locations put patients at increased risk of having a hearing impairment, renal anomalies, genetic syndromes, or infection. Clinicians should be aware of the current guidelines for recognizing, screening, and evaluating for these risks in patients with ear pits, regardless of location.

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The gut microbiome may be both helpful and harmful, and not only is it affected by diet, it has also been shown to affect mental health including personality, mood, anxiety and depression. In this clinical study we assessed dietary nutrient composition, mood, happiness, and the gut microbiome in order to understand the role of diet in the gut microbiome and how that affects mood and happiness. For this pilot study, we enrolled 20 adults to follow this protocol: recording a 2-day food log, sampling their gut microbiome, and completing five validated surveys of mental health, mood, happiness and well-being, followed by a minimum 1 week diet change and repeating the food log, microbiome sampling and the 5 surveys.

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While ataxia is a relatively common presenting feature in pediatric patients, it represents only one possible cause of uncoordinated movements. Other possible causes of uncoordinated movements include ingestion of toxic substances, musculoskeletal diseases, psychogenic disorders, extrapyramidal movement disorders, peripheral neuropathies, spasticity from any cause, and epilepsy. Therefore, primary health care providers must recognize and exclude other etiologies of uncoordinated movements before attaching the label "ataxia" to any patient presenting with poor coordination.

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Klinefelter (XXY) and XXYY syndromes are genetic disorders in males characterized by additional sex chromosomes compared to the typical male karyotype of 46, XY. Both conditions have been previously associated with motor delays and motor skills deficits. We aimed to describe and compare motor skills in males with XXY and XXYY syndromes, and to analyze associations with age, cognitive abilities, and adaptive functioning.

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Purpose: Individuals with sex chromosome aneuploidies (SCAs) are born with an atypical number of X and/or Y chromosomes, and present with a range of medical, developmental, educational, behavioral, and psychological concerns. Rates of SCA diagnoses in infants and children are increasing, and there is a need for specialized interdisciplinary care to address associated risks. The eXtraordinarY Kids Clinic was established to provide comprehensive and experienced care for children and adolescents with SCA, with an interdisciplinary team composed of developmental-behavioral pediatrics, endocrinology, genetic counseling, child psychology, pediatric neuropsychology, speech-language pathology, occupational therapy, nursing, and social work.

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