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Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Clinically significant cardiac arrhythmia in patients with aneurysmal subarachnoid hemorrhage
Yeon-Seong Jeong1, Hyung-Dong Kim
1Department of Neurosurgery, College of Medicine, Dong-A University, Busan, Korea.
Insights
Clinically significant cardiac arrhythmias are common in subarachnoid hemorrhage (SAH) patients and independently predict a higher mortality rate and poor outcomes. Close cardiac monitoring is crucial for patients with abnormal ECGs following SAH.
Area of Science:
- Neurology
- Cardiology
- Critical Care Medicine
Background:
- Electrocardiographic (ECG) changes are frequently observed in patients with subarachnoid hemorrhage (SAH).
- Cardiac arrhythmias represent a significant complication following SAH.
Purpose of the Study:
- To determine the frequency of clinically significant cardiac arrhythmias in SAH patients.
- To identify factors influencing these arrhythmias.
- To assess the impact of arrhythmias on patient outcomes.
Main Methods:
- Retrospective analysis of clinical data from 122 SAH patients.
- Inclusion of ECG findings, demographic data, clinical severity scores (Hunt-Hess, Fisher's), medical history, and physiological parameters.
- Assessment of Glasgow Outcome Scale (GOS) scores and intensive care unit (ICU) admission duration.
Main Results:
- 50% of SAH patients (n=61) experienced clinically significant arrhythmias.
- No independent factors were statistically linked to arrhythmia development in multivariate analysis.
- Arrhythmias independently predicted death (27.9% vs 11.5%) and poor outcomes (GOS ≤ 2, 29.5% vs 13.1%).
Conclusions:
- Clinically significant arrhythmias are associated with increased mortality and morbidity in SAH patients.
- Patients with abnormal admission ECGs require vigilant cardiac monitoring.
- Prompt management of arrhythmias, myocardial infarction, and autonomic stress is essential.
Objective:
Many previous studies have shown that electrocardiographic (ECG) changes occur patients with subarachnoid hemorrhage (SAH). This study was designed to identify the frequency, influencing factors, and outcome of clinically significant cardiac arrhythmias after SAH.
Methods:
We retrospectively analyzed clinical data of 122 patients including ECG finding, age, sex, the Hunt-Hess grade, the Fisher's grade, the history of hypertension, peak blood pressure and heart rate, location of aneurysm, Glasgow Outcome Scale (GOS) score, the days of admission to the intensive care unit, the presence of symptomatic vasospasm.
Results:
Of 122 SAH patients, 50% (n = 61) had a verified clinically significant arrhythmia. There were no statistically significant independent factors associated with clinically significant arrhythmia in multivariate analysis. Although adjustments for the effects of age, Hunt-Hess grade, and the presence of symptomatic vasospasm on death were made, clinically significant arrhythmias were still independently predictive of death (no arrhythmia versus arrhythmia, 11.5% versus 27.9%, adjusted odds ratio [OR] 3.524, 95% confidence interval [CI] 1.229-10.100, p = 0.019) and poor outcome (GOS ≤ 2, 13.1% versus 29.5%, adjusted OR 3.202, 95% CI 1.174-8.732, p= 0.023).
Conclusion:
Clinically significant arrhythmias after SAH are associated with a high mortality rate, and serious cardiac and neurological comorbidity. Patients with an abnormal ECG on admission should undergo close cardiac monitoring, and the presence of rhythm disturbances should prompt aggressive measures to treat myocardial infarction (MI), maintain a normal cardiac rhythm, and minimize the presence of autonomic stress.
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