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Published on: June 18, 2021
Evaluating the recovery of cognitive impairment in subarachnoid hemorrhage taking into consideration the practice
Sandra Santiago-Ramajo1, Majed J Katati, Miguel Pérez-García
1Neurosurgery Service, Hospital Virgen de las Nieves, and Department of Personality, Evaluation, and Psychological Treatment, School of Psychology, University de Granada, Granada, Spain. ssramaj@ugr.es
Background:
It is not completely clear whether there are differences in the evolution of the neuropsychological outcomes between the 2 intervention procedures (surgery and endovascular coiling) used in subarachnoid aneurysmatic hemorrhage. Some studies have investigated this topic but without completely controlling the effect of learning the tests.
Objective:
To analyze our data using 2 different statistical procedures that attempt to solve this problem.
Methods:
The sample consists of 70 patients who have suffered a subarachnoid hemorrhage: 40 treated by means of surgery and 30 by means of endovascular coiling. Two cognitive evaluations were performed at 4 and 12 months after the invention. Twenty-seven healthy subjects were also evaluated twice with a delay of 8 months. The data were analyzed using 2 different statistical procedures: one by Samra et al (2007) using z scores and the other by Crawford and Garthwaite (2007) using the regbuild.exe program.
Results:
The results indicate there are no important differences between the 2 treatment groups in the evolution of the cognitive alterations. Despite an improvement in cognitive scores on repeat testing at 12 months, neither of the 2 treatment groups showed the same level of test-retest learning as healthy control subjects.
Conclusion:
The recovery of neuropsychological functions after a subarachnoid hemorrhage is similar with the 2 interventions. It is important to control the learning effect produced by the repeated administration of tests.