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Cognitive performance in patients with episodic cluster headache outside and inside the active cluster
María Pilar Navarro-Pérez1,2, Elena Bellosta-Diago1,2, Alejandro Viloria-Alebesque2,3
1Neurology Department, University Clinic Hospital Lozano Blesa, Zaragoza, Spain.
Background:
Previous studies have shown worse cognitive performance in cluster headache (CH) patients compared to healthy controls; however, little is known about cognitive performance in episodic CH (ECH) patients outside and inside the active cluster (AC).
Objective:
Our aim is to compare cognitive function in ECH patients outside and inside the AC.
Methods:
In this cross-sectional, observational study, four neuropsychological tests (Trail Making Test [TMT], Stroop Test [ST], verbal fluency [VF], and Symbol Digit Modalities Test [SDT]) were completed by 21 ECH patients at two different points in time: outside and inside the AC. We also assessed self-reported sleep quality and the presence of anxiety or depressive symptoms. Scores were compared.
Results:
There was not any difference between the scores of the neuropsychological tests performed outside and inside the AC (TMT-A: 23 vs. 23.5; p = 0.984; TMT-B: 96.5 vs. 85.9; p = 0.104; ST word reading: 101.0 vs. 101.2; p = 0.938; ST color naming: 73.0 vs. 73.4; p = 0.858; ST color word: 44.0 vs. 46.0; p = 0.498; SDMT: 44.0 vs. 44.6; p = 0.961; VF phonemic: 29.5 vs. 30.2; p = 0.714; VF semantic: 20 vs. 21; p = 0.489). We found a worsening in the sleep quality component of the Pittsburgh Sleep Quality Index median scores in patients outside the AC (2 vs. 1; p = 0.046).
Conclusions:
Our findings suggest that patients with ECH have a similar cognitive performance outside and during the AC.
