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It is thought that it may be caused by the body's inflammatory response to surgery, stress hormone release during surgery, ischemia, or hypoxaemia. [5] [6] Post-operative cognitive dysfunction can complicate a person's recovery from surgery, delay discharge from hospital, delay returning to work following surgery, and reduce a person's quality ...
The authors concluded patients with long-standing coronary artery disease have some degree of cognitive dysfunction secondary to cerebrovascular disease before surgery; there is no evidence the cognitive test performance of bypass surgery patients differed from similar control groups with coronary artery disease over a 12-month follow-up period.
However, in the three-year study, both groups of breast cancer survivors were observed to have similar gray and white matter volumes. Altered brain structure in chemotherapy patients provides explanation for cognitive impairment. [12] Another study in 2007 investigated the differences in brain structure between two adult, monozygotic twin females.
Hemispherectomy is a surgery that is performed by a neurosurgeon where an unhealthy hemisphere of the brain is disconnected or removed. There are two types of hemispherectomy. Functional hemispherectomy refers to when the diseased brain is simply disconnected so that it can no longer send signals to the rest of the brain and body.
Brain plasticity has helped explain the recovery process of brain damage induced retrograde amnesia, where neuro-structures use different neural pathways to avoid the damaged areas while still performing their tasks. [42] Thus, the brain can learn to be independent of the impaired hippocampus, but only to a certain extent. [13]
Brain injury will commonly be accompanied by acute swelling, which impairs function in brain tissue that remains alive. Resolution of swelling is an important factor for the individual's function to improve. The greatest factor in functional recovery after brain injury comes from the brain's ability to learn, called neuroplasticity. After ...
Tereza Nová, an Olympic alpine skier, is in a medically induced coma. The Czech athlete, 26, was hospitalized with a serious head injury after experiencing a fall while training in Garmisch ...
After surgery, recognition of the symptoms of an awareness event may be delayed. [11] One review showed that only about 35% of patients are able to report an awareness event immediately after the surgery, with the rest remembering the experience from weeks to months afterward. [ 12 ]