Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Korean Neurosurg Soc. 2011 Dec;50(6):512-6. doi: 10.3340/jkns.2011.50.6.512. Epub 2011 Dec 31.

Acute-on-Chronic Subdural Hematoma: Not Uncommon Events.

Author information

  • 1Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.

Abstract

OBJECTIVE:

Patients with asymptomatic chronic subdural hematoma (SDH) are prone to fall or slip. Acute trauma on these patients may develop acute subdural bleeding over the chronic SDH. We recently experienced 9 patients with acute-on-chronic SDH. We report the clinical and radiological features of this lesion.

METHODS:

We retrospectively examined the computed tomographic (CT) scans of 107 consecutive patients who diagnosed as chronic SDH from January 2008 to December 2010. All cases of CSDH were diagnosed on CT with or without MRI scan.

RESULTS:

Acute-on-chronic SDH is not rare, being 8% of chronic SDH. The most common cause of trauma was a slip in drunken state. Alcoholism with multiple episodes of trauma was one of the prominent histories. Acute-on-chronic SDH appeared as a hyperdense layer of clot with irregular blurred margin or lumps in liquefied hematoma. Single or two burr holes was usually effective to remove the hematoma.

CONCLUSION:

Repeated trauma may cause acute bleeding over the chronic SDH. It will be helpful to understand the role of repeated trauma as a mechanism of hematoma enlargement.

KEYWORDS:

Chronic subdural hematoma; Computed tomography; Craniocerebral trauma; Diagnosis

PMID:
22323938
[PubMed]
PMCID:
PMC3272512
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for The Korean Neurosurgical Society Icon for PubMed Central
    Loading ...
    Write to the Help Desk