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Published on: June 18, 2021
Chronic subdural hematoma: a sentinel health event
Travis M Dumont1, Anand I Rughani, Tara Goeckes
1Division of Neurosurgery, University of Vermont, Burlington, Vermont, USA.
Insights
Chronic subdural hematoma (CSDH) in elderly patients signifies a sentinel event, indicating increased long-term mortality. Survival decreases significantly with advanced age post-diagnosis.
Area of Science:
- Geriatric Medicine
- Neurosurgery
- Public Health
Background:
- Chronic subdural hematoma (CSDH) is a significant concern in the elderly population.
- Understanding long-term outcomes after CSDH diagnosis is crucial for geriatric care.
Purpose of the Study:
- To establish chronic subdural hematoma (CSDH) as a sentinel health event in elderly individuals.
- To analyze the long-term survival rates of elderly patients diagnosed with CSDH.
Main Methods:
- Retrospective review of 301 patients aged 55 years and older with CSDH.
- Independent assessment of the impact of advanced age and surgical intervention on survival.
- Comparison with standardized mortality ratios (SMRs) based on age at presentation.
Main Results:
- Mortality after CSDH diagnosis escalates with increasing age, with median survival dropping to 1.5 years for those ≥85 years.
- One-year SMR was elevated across all age groups compared to general population data.
- The youngest elderly subpopulation (younger than 85) showed the most pronounced increase in SMR (2.9).
Conclusions:
- Elevated mortality rates in CSDH patients relative to standardized data support its classification as a sentinel health event.
- CSDH diagnosis in the elderly warrants careful consideration of underlying health status and prognosis.
Objective:
To propose that chronic subdural hematoma (CSDH) should be conceived as a sentinel event in elderly patients and offer an analysis of long-term survival after diagnosis.
Methods:
A retrospective review of 301 consecutive patients ≥55 years old admitted to an academic medical center with a primary diagnosis of CSDH between January 1996 and January 2010 was performed. The effects of advanced age and surgical intervention on survival were independently assessed. These groups were compared with standardized mortality ratios (SMRs) on the basis of patient age at time of presentation.
Results:
Mortality after diagnosis of CSDH increases with increased age at presentation. For all patients, the median survival was roughly 4 years after diagnosis (4.0 years ± 0.5). Median survival is decreased with older age at presentation, to a nadir of 1.5 years ± 0.6 for patients ≥85 years old (P = 0.0003, log-rank test). Compared with the reference data from the U.S. Centers of Disease Control and Prevention, 1-year SMR was increased in all age groups. An asymmetric increase in SMR was seen between age groups, with the greatest effect on the youngest subpopulation (SMR 2.9).
Conclusions:
The increased mortality rates in patients with CSDHs relative to standardized mortality data corroborate the conception of subdural hematoma as a sentinel health event.
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