amnesia/hemorrhage

OBJECTIVE Although long term outcome of patients with perimesencephalic haemorrhage, a benign subset of subarachnoid haemorrhage, is excellent, some patients report an episode of amnesia for the first hours to days after the ictus. The relation between the occurrence of amnesia and the size of the

Anterograde amnesia is a recognised complication of colloid cyst excision, occurring usually as a result of forniceal injury. However, spontaneous amnesia due to intra-cyst haemorrhage prior to excision has not been reported previously. We report such a case in which amnesia completely resolved

Subarachnoid hemorrhages (SAH) being sudden events affecting the brain in a rather wide-spread fashion are apt to induce loss of consciousness (LOC) and amnesia. The aim of the present study was to collect data on their frequency and extent. To this end we examined 48 patients at a mean of one year

BACKGROUND Transient global amnesia is reported to be caused by cerebral venous congestion. Internal jugular venous flow reversal in particular with the Valsalva maneuver leads to cerebral venous congestion. In addition, Valsalva maneuver can also induce subarachnoid hemorrhage. Transient global

The clinical manifestations of thalamic hemorrhage frequently comprise hemiparesis, hemianesthesia, and oculomotor abnormalities. Since the advent of computed tomography, an amnestic syndrome following thalamic hemorrhage has been recognized, but the thalamic structures involved and the mechanism of

In a patient with transient global amnesia, computed tomography demonstrated a left temporal haemorrhage sparing the hippocampal region.

A 52 year old patient with a right thalamic haemorrhage is described. She suffered from anterograde amnesia and memory impairment for both visual and verbal material. At follow-up after 3 months, despite being fully oriented and having good concentration, her memory impairment was still evident.

Three patients had amnesia and confusion as presenting features of thalamic hemorrhage. They had a relatively benign clinical appearance and lacked characteristics of the syndrome usually associated with thalamic hemorrhage. We reviewed hypotheses regarding a mechanism for the amnesic syndrome and

A patient developed spontaneous, acute, dominant frontal lobe haemorrhage neighbouring on a zone of pre-existing post-traumatic encephalomalacia manifesting clinically as transient global amnesia. Amnesia can be secondary to disease of the frontal lobe, affecting pathways interconnecting the basal

A 68-year-old female presented with recurrent transient global amnesia due to hemorrhagic prolactin-producing pituitary adenoma. Magnetic resonance imaging clearly revealed the anatomical relationship between the hematoma, within the parasellar tumor, and the compressed medial temporal lobe of the

Acute global amnesia may be due to several causes, such as transient global amnesia (TGA), acute drug-related confusional state, toxic substances, metabolic abnormalities, infective diseases, cerebral tumours, cerebrovascular accidents, subarachnoid haemorrhage and epilepsy. In particular both TGA

A 45-year-old right-handed woman suffered transient aphasia and persistent amnesia after a right thalamic haemorrhage. This patient appeared to have crossed aphasia, although it disappeared within 8 weeks. It is noteworthy that the patient had a unilateral right thalamic lesion but exhibited both

A left rostral thalamic hematoma was found in a 52-year-old hypertensive man who suffered from a 10-h episode of transient global amnesia (TGA). A neuropsychological study revealed no cognitive impairment in a follow-up period for 5 years. The left rostral part of the thalamus appears to be

There has been a controversy as to the contribution of the frontal lobe to human memory function. We describe a 49-year-old right-handed patient with memory disturbance following a left medial frontal subcortical hematoma. Her amnesia was characterized by (1) predominant anterograde amnesia, (2)

A case is described which presented as transient global amnesia (TGA) due to a critically placed intracerebral hypertensive haematoma in the left thalamic region, with epileptic discharges arising from the same area. It is proposed that intracerebral haematomas may occasionally present as a