Publications by authors named "Tagrid Ruiz-Maldonado"

Objectives: To assess the frequency and yield of retinal examination in children below 2 years old undergoing abuse evaluations in the setting of skull fracture(s) and small underlying intracranial hemorrhage.

Methods: This cross-sectional study used CAPNET, a multicenter child physical abuse network, to identify children below 2 years with a skull fracture(s) and intracranial injury limited to an underlying small focal intracranial hemorrhage undergoing subspeciality child abuse evaluations. Our outcomes of interest were (1) the performance of a retinal examination, (2) the identification of retinal hemorrhages, and (3) associations of clinical factors and CAPNET site with the performance of retinal examinations.

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Background: Classic metaphyseal lesions (CMLs) should raise concern for nonaccidental trauma. However, iatrogenic causes for CMLs have increasingly been described and warrant close consideration. Increasing the clinical understanding of CML mechanics and their relation to often routine medical procedures will enhance provider awareness and expand the differential diagnosis when these otherwise highly concerning injuries are identified.

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Background: Prior research and experience has increased physician understanding of infant skull fracture prediction. However, patterns related to fracture length, nonlinearity, and features of complexity remain poorly understood, and differences across infant age groups have not been previously explored.

Methods: To determine how infant and low-height fall characteristics influence fracture patterns, we collected data from 231 head CT 3D reconstructions and quantified length and nonlinearity using a custom image processing code.

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Synthetic cannabinoids are a heterogenous group of novel, legally regulated psychoactive substances that can result in broad, multisystemic, dangerous effects. Despite growing literature regarding synthetic cannabinoid toxicity, little is known about the extent of these effects in young children. Caregivers of drug-endangered children may not provide an accurate history of exposure when children present with symptoms of intoxication, and lack of swift detection on routine urine drug screens may further obscure and delay the diagnosis.

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Article Synopsis
  • The study highlights that recognizable skin injuries in children, such as bruises and lacerations, can indicate physical abuse, including a new type related to parental skin picking.* -
  • A case series of five children, all three years old or younger, showed that injuries from parental neurotic excoriation were confirmed by their condition and witness accounts, ruling out self-harm.* -
  • The findings suggest that caregivers' compulsive skin picking can lead to significant harm in children, emphasizing the need to consider such behavior as a form of abuse while also noting potential long-term consequences.*
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Background: Bruising in an infant is an important sentinel injury that should raise concern for child physical abuse, and should prompt a medical evaluation for occult injury. Hyperflexion during forceful squeezing of an infant's hand results in a distinct pattern of bruising along the palmar and interdigital creases, as well as the palmar eminences. Self-inflicted injury by the infant or injury resulting from benign handling should not be accepted as plausible explanations for this injury.

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Article Synopsis
  • Density-dependence is revealed as a key factor in regulating primate populations, with the study using long-term data from Cayo Santiago's rhesus macaques to analyze population dynamics.
  • The analysis showed that a density-dependent model accounted for 98% of the observed changes in population, with fertility and survival rates being the most influential factors for long-term fitness.
  • The research highlights the importance of considering demographic variability and population size in managing wild primate populations, especially given the potential impacts of habitat loss and food scarcity.
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