Tuomas Karhu
Postdoctoral Researcher
Department of Technical Physics, Faculty of Science, Forestry and Technology
tuomas.karhu@uef.fi | +358 50 473 3477
Postdoctoral researcher with interest to enhance the diagnostics of sleep disorders with advanced biosignal analysis techniques.
The topic of my PhD thesis was ”Nocturnal hypoxic load in the evaluation of the progression of sleep apnea”.
Research groups
Publications
15/15 items-
Excessive daytime sleepiness is associated with relative delta frequency power among patients with mild OSA
Howarth, Timothy; Tashakori, Masoumeh; Karhu, Tuomas; Rusanen, Matias; Pitkänen, Henna; Oksenberg, Arie; Nikkonen, Sami. 2024. Frontiers in neurology. 15: . 1367860 -
Interhemispheric differences of electroencephalography signal characteristics in different sleep stages
Tashakori, Masoumeh; Rusanen, Matias; Karhu, Tuomas; Grote, Ludger; Nath, Rajdeep Kumar; Leppänen, Timo; Nikkonen, Sami. 2024. Sleep medicine. 117: 201-208 -
Nocturnal oxygen resaturation parameters are associated with cardiorespiratory comorbidities
Howarth, Timothy P; Sillanmäki, Saara; Karhu, Tuomas; Rissanen, Marika; Islind, Anna Sigridur; Hrubos-Strøm, Harald; de Chazal, Philip; Huovila, Juuso; Kainulainen, Samu; Leppänen, Timo. 2024. Sleep medicine. 118: 101-112 -
Acute cardiorespiratory coupling impairment in worsening sleep apnea-related intermittent hypoxemia
Hietakoste, Salla; Armanac-Julian, Pablo; Karhu, Tuomas; Bailon, Raquel; Sillanmäki, Saara; Töyräs, Juha; Leppänen, Timo; Myllymaa, Sami; Kainulainen, Samu. 2023. IEEE transactions on biomedical engineering. 2024; 71: 326-333 -
Nocturnal hypoxic load in the evaluation of the progression of sleep apnea
Karhu, Tuomas. 2023. Publications of the University of Eastern Finland. Dissertations in Science, Forestry and Technology -
Oxygen resaturation rate is significantly associated with objectively assessed excessive daytime sleepiness in suspected obstructive sleep apnoea patients
Howarth, Timothy P.; Karhu, Tuomas; Kainulainen, Samu; Chen, Xin; Mahamid, Alaa; Töyräs, Juha; Leppänen, Timo. 2023. Sleep medicine. 107: 171-178 -
Reaction time in psychomotor vigilance task is related to hypoxic load in males with sleep apnea
Pahari, Purbanka; Korkalainen, Henri; Karhu, Tuomas; Arnardottir, Erna Sif; Töyräs, Juha; Leppänen, Timo; Nikkonen, Sami. 2023. Journal of sleep research. [First published: 13 July 2023]: 1-11 -
Utilizing Envelope Analysis of a Nasal Pressure Signal for Sleep Apnea Severity Estimation
Varis, Mikke; Karhu, Tuomas; Leppänen, Timo; Nikkonen, Sami. 2023. Diagnostics. 13: -
ABOSA – Freely available automatic blood oxygen saturation signal analysis software: Structure and validation
Karhu, Tuomas; Leppänen, Timo; Töyräs, Juha; Oksenberg, Arie; Myllymaa, Sami; Nikkonen, Sami. 2022. Computer methods and programs in biomedicine. 226: -
Desaturation event scoring criteria affect the perceived severity of nocturnal hypoxic load
Karhu, Tuomas; Leppänen, Timo; Korkalainen, Henri; Myllymaa, Sami; Duce, Brett; Töyräs, Juha; Nikkonen, Sami. 2022. Sleep medicine. 100: 479-486