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The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects
Published on: October 2, 2014
Predicting factors for shunt-dependent hydrocephalus in patients with aneurysmal subarachnoid hemorrhage
Yung Ki Park1, Hyeong-Joong Yi2, Kyu-Sun Choi1
1Department of Neurosurgery, Hanyang University Medical Center, Seoul, South Korea.
Insights
Postoperative fever and infection significantly increase the risk of shunt-dependent hydrocephalus after aneurysmal subarachnoid hemorrhage. Managing fever and preventing infection are crucial for better patient outcomes.
Area of Science:
- Neurosurgery
- Neurology
- Infectious Disease
Background:
- Chronic hydrocephalus is a significant complication following aneurysmal subarachnoid hemorrhage (SAH).
- This complication leads to increased medical burden and poorer clinical outcomes.
- Identifying predictive factors for shunt-dependent hydrocephalus is crucial for patient management.
Purpose of the Study:
- To evaluate predictive factors for shunt-dependent hydrocephalus after aneurysmal subarachnoid hemorrhage.
- To specifically investigate the role of postoperative fever and infection in hydrocephalus development.
Main Methods:
- A cohort of 418 patients with aneurysmal subarachnoid hemorrhage was analyzed.
- Patient demographics, radiologic findings, duration of fever (≥38.0°C), and infection types were compared between shunt and no-shunt groups.
- Statistical analysis identified independent predictive factors for shunt dependency.
Main Results:
- Independent predictors for shunt dependency included older age (≥65), microsurgical clipping, extraventricular drainage (EVD) placement, duration of fever, and infection.
- Shunt dependency rates increased proportionally with the duration of fever burden.
- Incidence of shunt dependency was 2.4% (no fever) to 41.7% (≥7 days fever).
Conclusions:
- Postoperative fever burden and infection are significant independent predictors of shunt-dependent hydrocephalus after SAH.
- Older age, microsurgical clipping, and EVD placement also contribute to shunt dependency.
- Optimizing postoperative care to control fever and prevent infection can reduce shunt dependency rates and improve outcomes.
Background:
Chronic hydrocephalus after aneurysmal subarachnoid hemorrhage (SAH) is a major complication that leads to a medical burden and poor clinical outcomes. The aim of this study was to evaluate the predictive factors of shunt-dependent hydrocephalus focusing on postoperative fever and infection.
Method:
A total of 418 patients were included in this study and the patient demographic features, radiologic findings, days of fever burden, and infection were compared between the shunt (n = 72) and no shunt group (n = 346). Days of fever burden was defined as the total number of days with the highest body temperature ≥ 38.0 °C each day from day 1 to day 14. Pneumonia, urinary tract infection (UTI), meningitis, and bacteremia were recorded in all patients.
Results:
The independent predictive factors for shunt-dependent hydrocephalus were older age ≥ 65, microsurgical clipping, placement of extraventricular drainage (EVD), days of fever burden, and infection. The incidence of shunt dependency was 2.4% in the no fever burden patients (n = 123), 14.9% in the 1-3 days of fever burden patients (n = 161), 27.0% in the 4-6 days of fever burden patients (n = 74), and 41.7% in the ≥ 7 days of fever burden patients with statistical significance among groups (p < 0.001).
Conclusion:
The rate of shunt dependency increased proportionally as the days of fever burden increased. Older age (≥ 65), microsurgical clipping, placement of EVD, days of fever burden, and infection were independent predictive factors for shunt dependency. Proper postoperative care for maintaining normal body temperature and preventing infectious disease can help reduce the rate of shunt dependency and improve clinical outcomes.
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