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Biomedical subjects

P D Adelson

Publications and source records attributed to P D Adelson.

57 records · Page 4Linked to original sources

Metabolic changes following cortical contusion: relationships to edema and morphological changes.

Rats with contusion injury to the right cortex exhibited significant formation of edema 6 and 24 hours after injury which resolved by 8 days and was replaced by cavitation necrosis. The contusions produced hyperglycolysis and ischemia in the impacted cortical tissue and underlying hippocampus immediately through 30 minutes post-injury. Glucose utilization was depressed throughout the contused cortex and in ipsilateral subcortical regions, as was blood flow, at chronic (1 and 10 days) periods after injury.

Animals↗

Temporal and extended temporal resections for the treatment of intractable seizures in early childhood.

In our series of 33 children who underwent temporal and extended temporal lobe resections because of seizures, the average age at surgery was 7 years, 11 months. Sixteen cases (48%) were diagnosed as having tumors: low-grade astrocytoma (6), hamartoma (5), and ganglioglioma/neuroma (5). Other pathologic diagnoses included one or more cytoarchitectural abnormalities and/or reactive changes. Due to a more aggressive and early radiologic and electrophysiologic investigation of children with seizures, a resectable focus, e.g. neoplasm or structural abnormality, was found in a much younger age group of patients than previously reported. In children who had intractable seizures but normal radiologic studies, positron emission tomography was of great value in localizing the seizure focus. In a group of children with infantile spasms, seizures were controlled following the identification and resection of a focal lesion. Prompt detection and precise localization of lesions in the temporal lobe in the pediatric population may lead to surgical management and seizure control.

Adolescent↗

Early versus late femoral fracture stabilization in multiply injured pediatric patients with closed head injury.

The purpose of this study was to analyze retrospectively pediatric femur fracture patients with concomitant head injury to determine whether time to fracture fixation affects central nervous system, orthopaedic, or additional complications. Twenty-five patients with a Head Abbreviated Injury Scale score of > or =3 and a femoral shaft fracture were reviewed. Patients were divided by time to treatment for their femur fracture. Average stay was 10.5 days for the early group and 18.5 days for the late group, the only statistically significant finding. Orthopaedic and central nervous system complications were similar between the two groups. Sixteen additional complications were found in the late group versus three for the early group. Femur fractures in the head-injured pediatric patient can be adequately addressed with early or late fixation with similar long-term outcomes. Early femur fracture fixation may decrease the length of hospital stay and the number of nonorthopaedic, nonneurologic complications.

Adolescent↗