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[Brain death in Ibero-America].

D Escudero1, R Matesanz, C A Soratti

  • 1Servicio de Medicina Intensiva y Coordinación de Trasplantes, Hospital Universitario Central de Asturias, Oviedo, España. dolores.escudero@sespa.princast.es

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Summary

Brain death (BD) diagnosis in Latin America shows uniformity in core criteria but variations exist in prerequisites, exams, and observation periods. Standardization of BD diagnostic criteria is recommended across the region.

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Area of Science:

  • Neurology
  • Medical Ethics

Context:

  • Brain death (BD) is a complex concept with varying legal and diagnostic interpretations globally.
  • Latin America presents a unique landscape for BD diagnosis due to diverse healthcare systems and regulations.

Purpose:

  • To investigate the current medical and legal practices for diagnosing brain death (BD) across 21 Latin American countries.
  • To identify commonalities and disparities in BD diagnostic criteria and procedures within the region.

Summary:

  • A survey of the Latin American Network/Council of Donation and Transplant revealed that 20 out of 21 countries legally recognize BD.
  • Key diagnostic criteria include unresponsive coma, absent brainstem reflexes, and cessation of spontaneous breathing, with variations in apnea test parameters (PaCO2 50-60mm Hg), minimum temperature (32-35°C), atropine test (mandatory in 35%), observation periods (commonly 6h, up to 24h), and obligatory instrumental tests (in 40%).

Impact:

  • Highlights significant uniformity in core BD diagnostic criteria across Latin America.
  • Identifies critical variations in clinical prerequisites, neurological examinations, observation durations, instrumental testing, and post-diagnosis clinical decisions.
  • Underscores the need for standardized brain death diagnostic criteria to ensure consistency and improve organ donation and transplantation processes.