Acute Interhemispheric Subdural Hematomas: A Report of 3 Cases and Review of the Literature

The development of acute supratentorial interhemispheric subdural hematomas is an uncommon yet a highly distinct event because of their unusual location, unknown natural history, and debated management. The majority develop in patients with head trauma, generalized bleeding tendency, or coagulopathy. We report on 3 patients who developed spontaneous acute inter-hemispheric subdural hematomas. They were 72, 66, and 65 years old, respectively. Two were males and the 3rd was a female. There was no head trauma, bleeding tendency, or coagulopathy. Two of them were hypertensive but none of them was diabetic, epileptic, or alcoholic. Two patients died, on day 1 and 2 respectively, and the 3rd patient was discharged by his next of kin after 3 hours of admission to our Acute and Emergency department. No neurosurgical intervention was carries out and all patients were treated conservatively. The hematoma was fronto-occipital and was located on the left side in 2 patients while in the 3rd patient it was a right-sided parieto-occipital one. Although the initial investigations had pointed out to the spontaneous development of those hematomas in our patients, a further search for an underlying etiology was supposed to be done, but the early death of 2 patients and the premature discharge of the 3rd patient had intersected with this work-up. The rapid deterioration and death of 2 patients might have been prevented if an early evacuation was done.