There are numerous reported ways to treat chronic subdural hematomas (CSDH) and practice is still differing considerably between departments. Except for a recent randomized controlled trial (RCT) that found that postoperative subdural drainage was better than no drain, there is no higher level evidence. Another recent RCT did not replicate these findings, but the study was severely underpowered. Aim of this population based study is to compare clinical results (reoperation rates, complications, perioperative death, and survival) between neurosurgical departments treating CSDH with different treatment policies.
Study Type
OBSERVATIONAL
Enrollment
1,258
Surgical technique 1. Continuous irrigation and drainage 2. Passive subdural drain 3. Active subgaleal drain
University Hospital of North Norway
Tromsø, Norway
St Olavs Hospital
Trondheim, Norway
Karolinska University Hospital
Stockholm, Sweden
reoperations
Number of reoperations (X/N, %) between centers
Time frame: 1 year
continuous irrigation versus other drainage
Number of reoperations with use of continuous irrigation (UNN) versus other drainage (St.Olav, Karolinska)
Time frame: 1 year
perioperative death
Time frame: 30 days
survival
Minimum 3 years follow up. Report 1 year mortality and use of Kaplan Meier curves (log rank test)
Time frame: 3 years
surgical complications
As defined by the Ibanez classification where it is the treatment given for a complication that gives the score. Medical and surgical complication is both mentioned and reported seperately
Time frame: 30 days
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.