Abstract
BackgroundChronic subdural haematoma (CSDH) is a common condition that is effectively managed by burrhole drainage but requires repeat surgery in a significant minority of patients. The Cambridge Chronic Subdural Haematoma Trial (CCSHT) was a randomised controlled study that showed placement of subdural drains for 48 h following burrhole evacuation significantly reduces the incidence of reoperation and improves survival at 6 months. The present study examined the long-term survival of the patients in the trial.MethodsIn the original trial patients at a single neurosurgical centre from 2004–2007 were randomly assigned to receive a drain (n = 108) or no drain (n = 107) following burrhole drainage of CSDH. We ascertained whether the trial patients were alive in February 2016—a minimum of 8 years following enrollment—via the UK NHS tracing service. Survival was compared between the trial groups and against expected survival for the UK general population matched for age and sex.ResultsAt 5 years following surgery the drain group continued to have significantly better survival than the no drain patients (p = 0.027), but this was no longer apparent at 10 years. Survival of patients in the drain group did not differ significantly from that of the general population whereas patients who did not receive a drain had significantly lower survival than expected (p = 0.0006).ConclusionSubdural drains following CSDH evacuation are associated with improved long-term survival, which appears similar to that expected for the general population of the same age and sex. All patients having burrhole CSDH evacuation should receive a drain as standard practice unless specifically contraindicated.
Highlights
Chronic subdural haematoma (CSDH) is a common condition, predominantly affecting those over 65 years of age [4]
Patients managed with a drain had significantly lower mortality at 6 months post-operatively and the present analysis confirms that a significant survival advantage remains at 5 years following surgery
Patients who received a drain had long-term survival that was not significantly different from that expected of the general population
Summary
Chronic subdural haematoma (CSDH) is a common condition, predominantly affecting those over 65 years of age [4]. Symptomatic CSDH is typically managed by surgical evacuation, usually via burrholes or mini-craniotomy, and a significant minority of patients develop recurrent symptomatic collections that require repeat surgical drainage. From November 2004 to December 2007 the Cambridge Chronic Subdural Haematoma (CCSDH) trial randomised patients to receive a subdural drain for 48 h post-operatively (n = 108) or no drain (n = 107), following burrhole evacuation of CSDH at a single UK neurosurgical centre [7]. Chronic subdural haematoma (CSDH) is a common condition that is effectively managed by burrhole drainage but requires repeat surgery in a significant minority of patients. The Cambridge Chronic Subdural Haematoma Trial (CCSHT) was a randomised controlled study that showed placement of subdural drains for 48 h following burrhole evacuation significantly reduces the incidence of reoperation and improves survival at 6 months. The present study examined the long-term survival of the patients in the trial
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