Related Experiment Video
Updated: Mar 25, 2026

04:55
Author Spotlight: Simulating Pediatric Cardiac Surgery Using a Neonatal Piglet Model
Published on: May 26, 2023
1.5K
Subtotal Cerebral Circulatory Arrest With Preserved Breathing Activity: A Case Report
M A Wujtewicz1, A Szarmach2, K Chwojnicki3
1Department of Ophthalmology, Medical University of Gdansk, Gdansk, Poland.
Transplantation Proceedings
|February 27, 2016
Summary
Diagnosing brain death (BD) requires certainty. In a suspected brain death case, reflexes appeared due to extracranial blood supply, not intracranial function.
Area of Science:
- Neurology
- Critical Care Medicine
- Neurophysiology
Background:
- Brain death (BD) determination is critical for end-of-life care decisions and organ donation.
- Accurate BD certification requires unequivocal clinical findings to avoid diagnostic uncertainty.
Observation:
- A patient with suspected brain death showed reflexes during the BD assessment period.
- Initial angiography indicated no intracranial blood flow, a key criterion for brain death.
Findings:
- The observed reflexes originated from an extracranial blood supply.
- This extracranial supply preserved minimal lower brain stem function, mimicking neurological activity.
Implications:
- Highlights the importance of considering extracranial circulation in BD assessments.
- Emphasizes the need for comprehensive diagnostic protocols to prevent misdiagnosis of brain death.
Related Concept Videos
Cardiopulmonary Resuscitation I: Adult
1.0K
Cardiopulmonary resuscitation, or CPR, is a life-saving emergency procedure performed when a person's heart has stopped beating or they are no longer breathing. The foundation of CPR is Basic Life Support (BLS), which focuses on the early recognition of cardiac arrest, the immediate start of high-quality chest compressions, and the timely use of an automated external defibrillator (AED).Assessing Responsiveness and Checking the Carotid PulseWhen approaching an unresponsive person, first ensure...
1.0K
Cardiopulmonary Resuscitation II: ACLS Airway Management
961
Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
961
Cardiopulmonary Resuscitation IV: Pharmacological Management
1.3K
Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
1.3K

