Differences in cognitive and emotional outcomes between patients with perimesencephalic and aneurysmal subarachnoid haemorrhage

Objectives: To compare cognitive and emotional outcomes between patients with aneurysmal and perimesencephalic subarachnoid haemorrhage and norm scores. Design: First measurement in prospective cohort study. Patients: Sixty-seven patients with subarachnoid haemorrhage, were divided into perimesencephalic (n = 8) and aneurysmal (n = 59) subarachnoid haemorrhage groups. Methods: Patients completed several questionnaires within the first year after haemorrhage. Depression was measured with the Center for Epidemiologic Studies Depression scale, fatigue with the Fatigue Severity Scale, and objective cognitive functioning with the Trail Making Test. Glasgow Coma Scale scores were collected at hospital admission. Results: Perimesencephalic patients had lower depression (p = 0.006) and lower fatigue scores (p = 0.029) and were faster on the Trail Making Test A (p = 0.002) than aneurysmal patients. No differences between the groups were found on Trail Making Test B (p = 0.112) and presence of fatigue (p = 0.105). Compared with norm scores, aneurysmal patients scored significantly worse on all outcomes, whereas perimesencephalic patients scored worse on Trail Making Test B (p < 0.008), fatigue (p = 0.073) and presence of fatigue (p = 0.058). Conclusion: Perimesencephalic patients may experience problems in complex cognitive functioning and fatigue. In this respect, they have similar sequelae as aneurysmal patients, which may interfere with daily activities and social participation. These findings are of clinical relevance, as perimesencephalic patients often are discharged from hospital without long-term follow-up.

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