SAMI NIKKONEN

Contact info

Research groups and research projects

Research groups - UEF

• 
  Sleep Technology and Analytics Research (STAR) Group

Links

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• Orcid ORCID

Publications

• Karhu, T; Myllymaa, S; Nikkonen, S; Mazzotti, DR; Kulkas, A; Töyräs, J; Leppänen, T. 2021. Diabetes and cardiovascular diseases are associated with the worsening of intermittent hypoxaemia Journal of sleep research 2022; 31 1: e13441. 2021
• Karhu, Tuomas; Myllymaa, Sami; Nikkonen, Sami; Mazzotti, Diego R; Töyräs, Juha; Leppänen, Timo. 2021. Longer and Deeper Desaturations Are Associated With the Worsening of Mild Sleep Apnea: The Sleep Heart Health Study Frontiers in neuroscience 15: 657126. 2021
• Korkalainen, Henri; Nikkonen, Sami; Kainulainen, Samu; Dwivedi, Amit Krishna; Myllymaa, Sami; Leppänen, Timo; Töyräs, Juha. 2021. Self-Applied Home Sleep Recordings: The Future of Sleep Medicine Sleep medicine clinics 16 4: 545-556. 2021
• Leino, Akseli; Nikkonen, Sami; Kainulainen, Samu; Korkalainen, Henri; Töyräs, Juha; Myllymaa, Sami; Leppänen, Timo; Ylä-Herttuala, Salla; Westeren-Punnonen, Susanna; Muraja-Murro, Anu; Jäkälä, Pekka; Mervaala, Esa; Myllymaa, Katja. 2021. Neural network analysis of nocturnal SpO2 signal enables easy screening of sleep apnea in patients with acute cerebrovascular disease Sleep medicine 79: 71-78. 2021
• Nikkonen, Sami; Korkalainen, Henri; Leino, Akseli; Myllymaa, Sami; Duce, Brett; Leppänen, Timo; Töyräs, Juha. 2021. Automatic Respiratory Event Scoring in Obstructive Sleep Apnea Using a Long Short-Term Memory Neural Network IEEE journal of biomedical and health informatics 25 8: 2917-2927. 2021
• Hietakoste, Salla; Korkalainen, Henri; Kainulainen, Samu; Sillanmäki, Saara; Nikkonen, Sami; Myllymaa, Sami; Duce, Brett; Töyräs, Juha; Leppänen, Timo. 2020. Longer apneas and hypopneas are associated with greater ultra-short-term HRV in obstructive sleep apnea Scientific reports 10: 21556. 2020
• Kainulainen, Samu; Töyräs, Juha; Oksenberg, Arie; Korkalainen, Henri; Afara, Isaac O; Leino, Akseli; Kalevo, Laura; Nikkonen, Sami; Gadoth, Natan; Kulkas, Antti; Myllymaa, Sami; Leppänen, Timo. 2020. Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness Sleep medicine 73: 231-237. 2020
• Korkalainen, H; Aakko, J; Duce, B; Kainulainen, S; Leino, A; Nikkonen, S; Afara, I O; Myllymaa, S; Töyräs, J; Leppänen, T. 2020. Deep learning enables sleep staging from photoplethysmogram for patients with suspected sleep apnea Sleep 43 11: zsaa098. 2020
• Nikkonen, Sami (ed.) . 2020. Novel computational tools for enhanced diagnostics of obstructive sleep apnea. Itä-Suomen yliopisto. Publications of the University of Eastern Finland. Dissertations in Forestry and Natural Sciences 395. 2020
• Nikkonen, Sami; Korkalainen, Henri; Kainulainen, Samu; Myllymaa, Sami; Leino, Akseli; Kalevo, Laura; Oksenberg, Arie; Leppänen, Timo; Töyräs, Juha. 2020. Estimating daytime sleepiness with previous night EEG, EOG and EMG spectrograms in patients with suspected sleep apnea using a convolutional neural network Sleep 43 12: zsaa106. 2020
• Korkalainen, H; Töyräs, J; Nikkonen, S; Leppänen, T. 2019. Mortality-risk-based apnea-hypopnea index thresholds for diagnostics of obstructive sleep apnea Journal of sleep research 28 6: e12855. 2019
• Korkalainen, Henri; Aakko, Juhani; Nikkonen, Sami; Kainulainen, Samu; Leino, Akseli; Duce, Brett; Afara, Isaac Oluwaseun; Myllymaa, Sami; Töyräs, Juha; Leppänen, Timo. 2019. Accurate Deep Learning-Based Sleep Staging in a Clinical Population with Suspected Obstructive Sleep Apnea IEEE journal of biomedical and health informatics 24 7: 2073-2081. 2019
• Nikkonen, S; Afara, IO; Leppänen, T; Töyräs, J. 2019. Artificial neural network analysis of the oxygen saturation signal enables accurate diagnostics of sleep apnea Scientific reports 9 1: 13200. 2019
• Nikkonen, S; Töyräs, J; Mervaala, E; Myllymaa, S; Terrill, P; Leppänen, T. 2019. Intra-night variation in apnea-hypopnea index affects diagnostics and prognostics of obstructive sleep apnea Sleep and breathing 2020; 24: 379-386. 2019
• Kulkas, Antti; Leppänen, Timo; Nikkonen, Sami; Oksenberg, Arie; Duce, Brett; Mervaala, Esa; Töyräs, Juha. 2018. Required CPAP usage time to normalize AHI in obstructive sleep apnea patients: a simulation study PHYSIOLOGICAL MEASUREMENT 39 11: 115009. 2018
• Kulkas, Antti; Nikkonen, Sami; Töyräs, Juha; Mervaala, Esa; Leppänen, Timo. 2018. Simulation of Required CPAP Usage to Normalize AHI in Obstructive Sleep Apnea Patients. In: Lhotska, L; Sukupova, L; Lackovic, I; Ibbott, G (ed.) , World Congress on Medical Physics and Biomedical Engineering 2018, June 3-8, 2018, Prague, Czech Republic (Vol.2). Springer. IFMBE Proceedings 68/2. s. 129-132. 2018