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Updated: Feb 21, 2026
Systems Analysis of the Neuroinflammatory and Hemodynamic Response to Traumatic Brain Injury
Published on: May 27, 2022
Brain-Heart Interactions in Traumatic Brain Injury
Ayman El-Menyar1, Abhishek Goyal, Rifat Latifi
1From the *Department of Surgery, Clinical Research, Westchester Medical Center, Valhalla, NY; †Clinical Medicine, Weill Cornell Medical College, Doha, Qatar; ‡Department of Medicine, New York Medical College/Westchester Medical Center, Valhalla, NY; §Department of Surgery, New York Medical College/Westchester Medical Center, Valhalla, NY; and ¶Department of Surgery, Trauma & Vascular Surgery, Hamad General Hospital, Qatar.
Insights
Traumatic brain injury (TBI) can cause heart problems. Beta-blockers show promise in reducing TBI mortality, but further research is needed to optimize their use.
Area of Science:
- Neuroscience
- Cardiology
- Trauma Surgery
Background:
- Cardiovascular manifestations are known in nontraumatic head disorders and have been reported in traumatic brain injury (TBI).
- The underlying mechanisms and clinical outcome impact of these cardiovascular manifestations in TBI are not well understood.
- The neurocardiac axis and neurogenic stunned myocardium offer potential explanations for the brain-heart interaction in TBI.
Purpose of the Study:
- To explore the mechanisms and clinical implications of cardiovascular manifestations in TBI.
- To review the potential role of beta-adrenergic blockers in managing TBI-related cardiovascular complications and mortality.
- To identify key questions for future randomized-controlled trials investigating beta-blocker therapy in TBI patients.
Main Methods:
- Review of existing literature on TBI and associated cardiovascular manifestations.
- Analysis of observational retrospective studies on the use of beta-adrenergic blockers in TBI.
- Identification of knowledge gaps and areas for future clinical research.
Main Results:
- Observational studies suggest beta-adrenergic blockers may reduce TBI-related mortality.
- The neurocardiac axis and neurogenic stunned myocardium provide a framework for understanding brain-heart interactions in TBI.
- Significant questions remain regarding optimal beta-blocker selection, dosage, timing, and duration in TBI management.
Conclusions:
- Understanding the brain-heart link in TBI is crucial for improved patient outcomes.
- Beta-blocker therapy presents a promising avenue for reducing TBI mortality, warranting further investigation.
- Randomized-controlled trials are essential to establish evidence-based guidelines for beta-blocker use in TBI, considering factors like patient selection and hemodynamic management.
Abstract:
The cardiovascular manifestations associated with nontraumatic head disorders are commonly known. Similar manifestations have been reported in patients with traumatic brain injury (TBI); however, the underlying mechanisms and impact on the patient's clinical outcomes are not well explored. The neurocardiac axis theory and neurogenic stunned myocardium phenomenon could partly explain the brain-heart link and interactions and can thus pave the way to a better understanding and management of TBI. Several observational retrospective studies have shown a promising role for beta-adrenergic blockers in patients with TBI in reducing the overall TBI-related mortality. However, several questions remain to be answered in clinical randomized-controlled trials, including population selection, beta blocker type, dosage, timing, and duration of therapy, while maintaining the optimal mean arterial pressure and cerebral perfusion pressure in patients with TBI.
