Chronic subdural haematomas are more common on the left than on the right

Subdural Hematomas: An Analysis of 1181 Kashmiri Patients

“…Chronic subdural collections are more common than subacute collections (19). In our series also, chronic subdural collections were more common than the subacute …”

“…Whatever be the cause, the source of bleed is mostly the crossing subdural veins, which rupture and lead to collection (39). Subdural hematomas are classified as acute, subacute, and chronic depending on the time of diagnosis from the day of injury: acute, within 3 days of injury; subacute, from 3 days to 3 weeks of injury; and chronic, more than 3 weeks after injury (19,42). Another classification of subdural hematomas is based on the texture of the hematoma on plain computed tomographic (CT) scan: hyperdense hematoma as acute subdural, isodense as subacute, and chronic as hypodense (29).…”

What Determines the Laterality of the Chronic Subdural Hematoma?

“…CSDH was more common on the left side in this study as CSDHs occurred more frequently on the left side 2,5,8,16,18,21) . Even in strokes, the left hemispheric events was more com- mon than the right 4) .…”

“…Even in strokes, the left hemispheric events was more com- mon than the right 4) . MacFarlane et al 16) suggested that the right-sided lesions were likely to be documented less frequently as a result of the underdiagnosis of these lesions rather than a true increase in left-sided lesions.…”

“…CSDHs are more commonly found on the left than on the right in many reports 2,5,8,16,18,21) . There was no statistically significant difference in terms of laterality in the acute or subacute subdural hematomas 16) . There are reports indicating that the laterality of the CSDH depends on the cranial morphology 2,12) .…”