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Updated: Mar 29, 2026
Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation
Published on: October 15, 2021
Spontaneous resolution of traumatic acute subdural haematomas: A systematic review
Roberto Bezerra Vital1, Pedro Tadao Hamamoto Filho1, Victor Azevedo de Oliveira1
1Botucatu Medical School; UNESP Univ Estadual Paulista; Department of Neurology, Psychology and Psychiatry, Botucatu, SP, Brazil.
Introduction:
Traumatic subdural haematomas often require emergency surgical evacuation. Spontaneous resolution of traumatic acute subdural haematomas (TASDH) is under-reported. Two patients are described with spontaneous resolution of TASDH correlating with previous reports. A discussion is presented on the clinical, pathological and radiological features of TASDH.
Methods:
A review of the literature was performed using PubMed (Medline), Embase, and Cochrane Library for similar cases.
Results:
A total 21 articles were included, involving 27 cases well detailed of TASDH with spontaneous resolution or neurological and radiological improvement in less than 24 h.
Conclusions:
There are two main mechanisms for the spontaneous resolution of acute subdural haematomas: dilution in subarachnoid space and redistribution of the haematoma in the subdural space. The primary radiological characteristic of these lesions is a hypodense rim on the outer surface of the clot. Spontaneous resolution of TASDH is unusual. Clinical and radiological surveillance is essential for appropriate management of these patients.
