MRI Findings in Children with the First Unprovoked Seizure Presenting to the Emergency Department; Does Developmental Delay Suggest the Importance of Brain MRI Evaluation?

Introduction: The first unprovoked seizure (FUS) in children is a convulsive seizure with an unknown cause, which may be due to an underlying neurological disease or a manifestation of epilepsy. Objective: The aim of this study was to evaluate the findings of brain magnetic resonance imaging (MRI) in pediatric patients with FUS, presenting to the emergency department (ED). Methods: In this cross-sectional study, all children with FUS (age: >1month and<14 years), who were referred to the ED of Qaem Hospital, Mashhad, Iran from 2016 to 2019, were investigated. Medical records, brain MRI findings, electroencephalography (EEG) results, and developmental status of children were reviewed retrospectively. Results: The brain MRI findings of 56 children with FUS were reviewed. The mean age of children was 3.92±6.05 years, and the sex distribution was equal. Seventeen (30.4%) patients had abnormal EEG findings, while 13 (23.2%) patients’ had non-specific EEG findings. Neurological examination of 4 (7.1%) children was abnormal. Overall, 6 (10.7%) patients had non-specific abnormal brain MRI findings for seizure, while 3 (5.4%) patients had specific abnormal findings. A significant relationship was observed between the developmental status of children and abnormal MRI findings (P=0.04). However, MRI findings had no significant relationship with EEG or neurological findings (P>0.05). Conclusion: It may be useful to perform brain MRI for children with FUS presenting to ED, especially those who are suspected of developmental disorders

MRI Findings in Children with the First Unprovoked Seizure Presenting to the Emergency Department; Does Developmental Delay Suggest the Importance of Brain MRI Evaluation?

Introduction: The first unprovoked seizure (FUS) in children is a convulsive seizure with an unknown cause, which may be due to an underlying neurological disease or a manifestation of epilepsy. Objective: The aim of this study was to evaluate the findings of brain magnetic resonance imaging (MRI) in pediatric patients with FUS, presenting to the emergency department (ED). Methods: In this cross-sectional study, all children with FUS (age: >1month and<14 years), who were referred to the ED of Qaem Hospital, Mashhad, Iran from 2016 to 2019, were investigated. Medical records, brain MRI findings, electroencephalography (EEG) results, and developmental status of children were reviewed retrospectively. Results: The brain MRI findings of 56 children with FUS were reviewed. The mean age of children was 3.92±6.05 years, and the sex distribution was equal. Seventeen (30.4%) patients had abnormal EEG findings, while 13 (23.2%) patients’ had non-specific EEG findings. Neurological examination of 4 (7.1%) children was abnormal. Overall, 6 (10.7%) patients had non-specific abnormal brain MRI findings for seizure, while 3 (5.4%) patients had specific abnormal findings. A significant relationship was observed between the developmental status of children and abnormal MRI findings (P=0.04). However, MRI findings had no significant relationship with EEG or neurological findings (P>0.05). Conclusion: It may be useful to perform brain MRI for children with FUS presenting to ED, especially those who are suspected of developmental disorders

A 21-year-old Pregnant Trauma Patient with Asymptomatic Fat Embolism; a Case Report

Introduction: Fat embolism syndrome (FES) is most often associated with orthopedic trauma that typically presents 24–72 hours after the trauma with a classic triad. Only few cases of fat embolism due to lower extremity venous system had been reported. Case presentation: The current case report presents a pregnant woman who was referred to our emergency department with bilateral femoral open fracture. After detecting fetal demise by abdominopelvic ultrasound, an area of fat density in right external iliac vein was detected in abdominopelvic contrast enhanced computed tomography (CT) scan which was considered as the probable diagnosis of fat embolism. While the patient did not show signs and symptoms of FES, the fat embolism was confirmed in further evaluations. Conclusion: In summary, although detection of fat embolus in CT scan in the emergency department is very rare, evaluation of lower extremity venous system in a posttraumatic patient seems to be crucial because early diagnosis of fat embolism can help the clinicians to prevent FES

A 21-year-old Pregnant Trauma Patient with Asymptomatic Fat Embolism; a Case Report

Introduction: Fat embolism syndrome (FES) is most often associated with orthopedic trauma that typically presents 24–72 hours after the trauma with a classic triad. Only few cases of fat embolism due to lower extremity venous system had been reported. Case presentation: The current case report presents a pregnant woman who was referred to our emergency department with bilateral femoral open fracture. After detecting fetal demise by abdominopelvic ultrasound, an area of fat density in right external iliac vein was detected in abdominopelvic contrast enhanced computed tomography (CT) scan which was considered as the probable diagnosis of fat embolism. While the patient did not show signs and symptoms of FES, the fat embolism was confirmed in further evaluations. Conclusion: In summary, although detection of fat embolus in CT scan in the emergency department is very rare, evaluation of lower extremity venous system in a posttraumatic patient seems to be crucial because early diagnosis of fat embolism can help the clinicians to prevent FES

Magnetoelectric properties of epitaxial Fe3O4 thin films on (011) PMN-PT piezosubstrates

We determine the magnetic and magnetotransport properties of 33 nm thick Fe3O4 films epitaxially deposited by rf-magnetron sputtering on unpoled (011) [PbMg1/3Nb2/3O3](0.68) - [PbTiO3](0.32) (PMN-PT) substrates. The magnetoresistance (MR), as well as the magnetization reversal, strongly depend on the in-plane crystallographic direction of the epitaxial (011) Fe3O4 film and strain. When the magnetic field is applied along [100], the magnetization loops are slanted and the sign of the longitudinal MR changes from positive to negative around the Verwey transition at 125 K on cooling. Along the [01 (1) over bar] direction, the loops are square shaped and the MR is negative above the switching field across the whole temperature range, just increasing in absolute value when cooling from 300 K to 150 K. The value of the MR is found to be strongly affected by poling the PMN-PT substrate, decreasing in the [100] direction and slightly increasing in the [01 (1) over bar] direction upon poling, which results in a strained film