scholarly journals Are There Hallmarks of Child Abuse? II. Non-Osseous Injuries

2016 ◽  
Vol 6 (4) ◽  
pp. 591-607
Author(s):  
Charis Kepron ◽  
Alfredo Walker ◽  
Christopher M. Milroy

Certain conditions have been considered hallmarks of child abuse. Such pathognomonic conditions have led to an inevitable diagnosis of inflicted injury. Forensic pathologists are faced with complex analyses and decisions related to what is and what is not child abuse. In this review, we examine the literature on the specificity of five conditions that have been linked to inflicted injury to varying degrees of certainty. The conditions examined include tears of the labial frena (frenula), cigarette burns, pulmonary hemorrhage and intraalveolar hemosiderin-laden macrophages as markers of upper airway obstruction, intraabdominal injuries, and anogenital injuries and postmortem changes. Analysis of the literature indicates that frena tears are not uniquely an inflicted injury. Cigarette burns are highly indicative of child abuse, though isolated cigarette burns may be accidental. Pulmonary hemorrhage is seen more commonly in cases with a history suggestive of upper airway obstruction, but is not diagnostic in an individual case. Hemosiderin-laden macrophages may be seen in cases with inflicted injuries and in natural deaths. Abdominal injuries may be seen in accidents and from resuscitation, though panreatico-duodenal complex injuries in children under five years of age are not reported to be seen in falls or resuscitation. The understanding of anogenital injuries is increasing, but misunderstanding of postmortem changes has led to miscarriages of justice.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
P. Sabetian ◽  
Y. Sadat-Nejad ◽  
Paul B. Yoo

AbstractElectrical signals from the peripheral nervous system have the potential to provide the necessary motor, sensory or autonomic information for implementing closed-loop control of neuroprosthetic or neuromodulatory systems. However, developing methods to recover information encoded in these signals is a significant challenge. Our goal was to test the feasibility of measuring physiologically generated nerve action potentials that can be classified as sensory or motor signals. A tetrapolar recording nerve cuff electrode was used to measure vagal nerve (VN) activity in a rodent model of upper airway obstruction. The effect of upper airway occlusions on VN activity related to respiration (RnP) was calculated and compared for 4 different cases: (1) intact VN, (2) VN transection only proximal to recording electrode, (3) VN transection only distal to the recording electrode, and (4) transection of VN proximal and distal to electrode. We employed a Support Vector Machine (SVM) model with Gaussian Kernel to learn a model capable of classifying efferent and afferent waveforms obtained from the tetrapolar electrode. In vivo results showed that the RnP values decreased significantly during obstruction by 91.7% ± 3.1%, and 78.2% ± 3.4% for cases of intact VN or proximal transection, respectively. In contrast, there were no significant changes for cases of VN transection at the distal end or both ends of the electrode. The SVM model yielded an 85.8% accuracy in distinguishing motor and sensory signals. The feasibility of measuring low-noise directionally-sensitive neural activity using a tetrapolar nerve cuff electrode along with the use of an SVM classifier was shown. Future experimental work in chronic implant studies is needed to support clinical translatability.


1985 ◽  
Vol 3 (3) ◽  
pp. 721-738
Author(s):  
Elliot J. Rhine ◽  
Gary G. Johnson

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