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Published on: June 18, 2021
Chronic subdural hematoma in patients over 90 years old in a super-aged society
Sadaharu Tabuchi1, Mitsutoshi Kadowaki1
1Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan.
Insights
Surgery for chronic subdural hematoma (CSDH) is safe and effective for patients over 90 years old. Pre-illness physical status is key for successful surgical outcomes in this super-aged population.
Area of Science:
- Neurosurgery
- Geriatric Medicine
- Neurology
Background:
- Chronic subdural hematoma (CSDH) is a common neurosurgical condition, particularly in the elderly.
- The incidence of CSDH is increasing due to a growing aged population.
- Limited research exists on CSDH management in super-aged individuals (over 90 years old).
Purpose of the Study:
- To evaluate the safety and efficacy of surgical interventions for chronic subdural hematoma (CSDH) in patients aged 90 years and older.
- To identify factors influencing surgical outcomes in this specific demographic.
Main Methods:
- Retrospective review of 20 patients over 90 years old diagnosed with CSDH.
- Comparison between surgical (burr-hole with drain) and conservative treatment groups.
- Neurological status assessed using the modified Rankin Scale pre-CSDH, at admission, and at discharge/1 month post-referral.
Main Results:
- The mean age of patients was 92.6 years.
- Surgical intervention in CSDH patients over 90 years old led to significant neurological improvement (P < 0.01).
- 66.7% of surgically treated patients could return home post-discharge, with no significant perioperative complications.
Conclusions:
- Surgical treatment for CSDH is recommended for super-aged patients (over 90) with a fair physical status.
- Pre-illness functional status is a critical determinant for operative indication and postoperative outcomes in this population.
Background:
Chronic subdural hematoma (CSDH) is one of the most common diseases in neurosurgical practice, particularly among aged patients. With the continuing increase in the aged population, further increases in incidence are expected. However, few studies have focused on CSDH in super-aged patients over 90 years old.
Methods:
We retrospectively reviewed medical records for 20 consecutive patients over 90 years old with CSDH treated in our department between 2007 and 2013. The diagnosis of CSDH was confirmed by computed tomography (CT). Patients were divided into a surgery group and a conservative group. Surgical procedures included burr-hole surgery followed by insertion of a subdural drain under local anesthesia. Clinical data were compared and analyzed. Neurological status was evaluated according to the modified Rankin Scale at three time points: before suffering from CSDH; at the time of referral or admission to our department; and at discharge or 1 month after the first referral. Statistical tests were used to analyze data and values of P < 0.05 were considered significant.
Results:
Mean age for the 20 cases was 92.6 years (range, 90 - 96 years). The leading symptoms in this population were hemiparesis and gait disturbance, followed by disturbance of consciousness and speech disturbance. Twelve patients underwent burr-hole surgery. Mean maximum thickness of subdural hematoma as measured on CT was significantly higher in the surgery group (28.2 ± 5.4 mm) than in the conservative group (17.0 ± 3.8 mm; P < 0.01). Postoperatively, mean neurological status was significantly improved in the surgery group (P < 0.01). After surgery, 66.7% of patients could return home directly from hospital. No significant perioperative complications directly related to surgery were encountered in the surgery group, except for transient postoperative restlessness and bruising of extremities due to falls.
Conclusions:
Surgery for CSDH is safe and positively recommended even in super-aged patients over 90 years old if the patient's physical status is fair. Pre-illness status is the most important factor for considering operative indications and represents a limiting factor for postoperative outcomes in this age population.
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