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Biomedical subjects

A L Pearson-Shaver

Publications and source records attributed to A L Pearson-Shaver.

5 recordsLinked to original sources
PubMed1993

Esophageal-aortic erosion associated with double aortic arch and tracheomalacia. Experience with 2 infants.

Patients with double aortic arch may require lengthy intubation for ventilatory support. The need for endotracheal and nasogastric intubation may be prolonged in such patients because of associated tracheomalacia. Iatrogenic tracheal or esophageal erosion with subsequent aortic fistulization is an unusual but catastrophic complication that may result from such intubation. We report the cases of 2 infants with double aortic arch and tracheomalacia who developed iatrogenic esophageal-aortic erosion. This complication was successfully managed in 1 of the infants. We conclude from our experience that the important steps in preventing this complication include 1) expediting the exclusion of upper-airway compromise in intubated infants who have a presentation characteristic of bronchospastic airway disease (hyperinflation and hypercapnia) that seems unresponsive to usual therapeutic measures; and 2) expediting the diagnosis of vascular ring in order to minimize the duration of dual tracheal and esophageal intubation. Effective management of this problem, once established, requires primary closure of the esophageal perforation, removal of the nasogastric tube, interposition of thick viable tissue between the esophagus and the aorta, and decompressive gastrostomy and feeding jejunostomy. Concomitant aortopexy may be appropriate.

Aorta, Thoracic↗
PubMed1988

Poisoning.

Knowledge of the toxicologic nature of ingested substances provides a proper framework for general and specific therapies best suited to meet the needs of the patient. Monitoring and direct observation provided in the PICU can aid proper therapy for many intoxicants. Good supportive care coupled with specific pharmacotherapy will provide the best chance for a successful outcome.

Acetaminophen↗
PubMedDate not supplied

Interstitial pulmonary edema in children and adolescents with diabetic ketoacidosis.

The acute complications of diabetic ketoacidosis in children and adolescents are well recognized but not completely understood. Clinical studies have focused primarily on brain edema. We have investigated the prevalence and course of interstitial pulmonary edema in patients with severe diabetic ketoacidosis all of whom had uneventful clinical courses. High resolution computed tomography scans of the lungs were analyzed by determining the Hounsfield attenuation level and then converting to physical density values. All seven patients had evidence of interstitial pulmonary edema on the first scan, which was performed within 1 h of hydration and prior to receiving insulin; six of the seven patients had increased pulmonary density 6-8 h into treatment, and all had complete resolution of the interstitial changes at discharge. Our study suggests that subclinical interstitial pulmonary edema may be a frequent occurrence in children and adolescents with severe diabetic ketoacidosis and may very well be present prior to treatment. The study also supports the philosophy of cautious rehydration and the close monitoring of children and adolescents with diabetic ketoacidosis until a more complete understanding of this pathophysiologic event is achieved.

Adolescent↗