Related Experiment Video
Updated: Jun 6, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Cardiac damage after subarachnoid hemorrhage
Bihua Wu1, Xiaoming Wang, John H Zhang
1Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637007, People's Republic of China. wubihua2008@yahoo.com
Subarachnoid hemorrhage (SAH) can cause cardiac complications like T-wave inversion and QT interval prolongation, even in patients without prior heart disease. Further research is needed to support treatments like beta-blockers for these neurocardiogenic injuries.
Area of Science:
- Neurology
- Cardiology
- Genetics
Background:
- Subarachnoid hemorrhage (SAH) is known to cause cardiac complications.
- Electrocardiogram (ECG) abnormalities like T-wave inversion and QT prolongation occur in patients post-SAH, irrespective of pre-existing cardiac conditions.
- These cardiac issues are forms of neurocardiogenic injury.
Purpose of the Study:
- To summarize the cardiac complications following SAH.
- To discuss the modulating factors of SAH's autonomic and cardiovascular effects.
- To review the evidence for therapeutic interventions like beta-blockers.
Main Methods:
- Literature review of studies on SAH and cardiac complications.
- Analysis of ECG findings and myocardial damage markers post-SAH.
- Evaluation of clinical trial data for interventions.
Main Results:
- SAH frequently leads to cardiac injury, including ECG changes, arrhythmias, and myocardial damage.
- Concomitant factors such as pre-existing heart disease, electrolyte imbalances, and genetic factors influence SAH's cardiovascular impact.
- Clinical trials supporting beta-blocker use for SAH-induced myocardial damage are lacking.
Conclusions:
- Cardiac complications are a significant concern after SAH.
- The interplay between neurological and cardiovascular systems in SAH is complex and influenced by multiple factors.
- Current evidence does not support the routine use of beta-blockers for acute cerebrovascular disease management post-SAH.
Related Concept Videos
Hemorrhagic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Secondary Spinal Cord Injury llI: Pathophysiology
Stroke: Introduction and Types
Ischemic Stroke ll: Pathophysiology
Increased Intracranial Pressure ll: Pathophysiology
