TIMO LEPPäNEN

Yhteystiedot

Avainsanat

Julkaisut

• Kainulainen, S; Duce, B; Korkalainen, H; Oksenberg, A; Leino, A; Arnardottir, E; Kulkas, A; Myllymaa, S; Töyräs, J; Leppänen, T. 2020. Severe Desaturations Increase PVT-based Median Reaction Time and Number of Lapses in OSA Patients European respiratory journal 55: 1901849. 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
• Kalevo, Laura; Miettinen, Tomi; Leino, Akseli; Kainulainen, Samu; Korkalainen, Henri; Myllymaa, Katja; Töyräs, Juha; Leppänen, Timo; Laitinen, Tiina; Myllymaa, Sami. 2020. Effect of sweating on electrode-skin contact impedances and artifacts in EEG recordings with various screen-printed Ag/Agcl electrodes IEEE access 8: 50934-50943. 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 [Online ahead of print]: -. 2020
• Kulkas, Antti; Duce, Brett; Töyräs, Juha; Seppä, Juha; Leppänen, Timo. 2020. Comparison of the effect of weight change, simulated computational continuous positive airway pressure treatment and positional therapy on severity of sleep apnea Journal of sleep research [Online ahead of print 2020 Jun 18]: e13070. 2020
• Leino, A; Westeren-Punnonen, S; Töyräs, J; Myllymaa, S; Leppänen, T; Ylä-Herttuala, S; Muraja-Murro, A; Kantanen, AM; Autere, J; Jäkälä, P; Mervaala, E; Myllymaa, K. 2020. Acute stroke and TIA patients have specific polygraphic features of obstructive sleep apnea Sleep and breathing [Epub ahead of print 14 Jan 2020]: 1-11. 2020
• Leppänen, T; Kulkas, A; Töyräs, J; Myllymaa, S; Gadoth, N; Oksenberg, A. 2020. Polysomnographic characteristics of severe obstructive sleep apnea vary significantly between hypertensive and normotensive patients of both genders Sleep and breathing [Online ahead of print 2020 Apr 5]: 1-12. 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 [Online ahead of print]: -. 2020
• Oksenberg, A; Goizman, V; Eitan, E; Nasser, K; Gadoth, N; Leppänen, T. 2019. Obstructive sleep apnea: Do positional patients become nonpositional patients with time? Laryngoscope [Epub ahead of print 13 Nov 2019]: 1-7. 2019
• Oksenberg, A; Gadoth, N; Töyräs, J; Leppänen, T. 2019. Prevalence and characteristics of positional obstructive sleep apnea (POSA) in patients with severe OSA Sleep and breathing [First Online: 20 July 2019]: 1-9. 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
• 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
• Leppänen, Timo; Kulkas, Antti; Töyräs, Juha. 2019. The hypoxic burden: also known as the desaturation severity parameter European heart journal 40 35: 2991-2993. 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 [Epub ahead of print 19 Dec 2019]: 1-9. 2019
• 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
• Kalevo, Laura; Miettinen, Tomi; Leino, Akseli; Kainulainen, Samu; Myllymaa, Katja; Toyras, Juha; Leppanen, Timo; Myllymaa, Sami. 2019. Improved Sweat Artifact Tolerance of Screen-Printed EEG Electrodes by Material Selection-Comparison of Electrochemical Properties in Artificial Sweat IEEE access 7: 133237-133247. 2019
• Kainulainen, S; Töyräs, J; Oksenberg, A; Korkalainen, H; Sefa, S; Kulkas, A; Leppänen, T. 2019. Severity of desaturations reflects OSA-related daytime sleepiness better than AHI Journal of clinical sleep medicine 15 8: 1135-1142. 2019
• Kulkas, Antti; Nikkonen, Sami; Töyräs, Juha; Mervaala, Esa; Leppänen, Timo. 2018. Simulation of Required CPAP Usage to Normalize AHI in Obstructive Sleep Apnea Patients. Teoksessa: Lhotska, L; Sukupova, L; Lackovic, I; Ibbott, G (toim.), 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
• Leppänen, Timo; Kulkas, Antti; Mervaala, Esa; Töyräs, Juha. 2018. Increase in Body Mass Index Decreases Duration of Apneas and Hypopneas in Obstructive Sleep Apnea Respiratory care 2019; 64 1: 77-84. 2018
• Leppänen, Timo; Kulkas, Antti; Oksenberg, Arie; Duce, Brett; Mervaala, Esa; Töyräs, Juha. 2018. Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients PHYSIOLOGICAL MEASUREMENT 39 11: 114004. 2018
• Ryynänen, Olli-Pekka; Leppänen, Timo; Kekolahti, Pekka; Mervaala, Esa; Töyräs, Juha. 2018. Bayesian Network Model to Evaluate the Effectiveness of Continuous Positive Airway Pressure Treatment of Sleep Apnea Healthcare Informatics Research 24 4: 346-358. 2018
• Kulkas Antti, Duce Brett, Leppänen Timo, Hukins Craig, Töyräs Juha. 2017. Gender differences in severity of desaturation events following hypopnea and obstructive apnea events in adults during sleep. PHYSIOLOGICAL MEASUREMENT 38 8: 1490-1502. 2017
• Kulkas Antti, Duce Brett, Leppänen Timo, Hukins Craig, Töyräs Juha. 2017. Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea. Sleep and Breathing 21 4: 829-835. 2017
• Leppänen Timo, Töyräs Juha, Mervaala Esa, Penzel Thomas, Kulkas Antti. 2017. Severity of individual obstruction events increases with age in patients with obstructive sleep apnea. SLEEP MEDICINE 37: 32-37. 2017
• Leppänen Timo, Kulkas Antti, Duce Brett, Mervaala Esa, Töyräs Juha. 2016. Severity of individual obstruction events is gender dependent in sleep apnea. Sleep and Breathing First Online: 13 December 2016: 1-8. 2016
• Leppänen Timo, Särkkä Mikko, Kulkas Antti, Muraja-Murro Anu, Kupari Salla, Anttonen Meri, Tiihonen Pekka, Mervaala Esa, Töyräs Juha. 2016. RemLogic plug-in enables clinical application of apnea-hypopnea index adjusted for severity of individual obstruction events. JOURNAL OF MEDICAL ENGINEERING & TECHNOLOGY 40 3: 119-126. 2016
• Leppänen Timo. 2016. Novel methods for diagnostics of obstructive sleep apnea: effect of weight loss, gender, and sleeping position on severity of apnea, hypopnea and desaturation events. Publications of the University of Eastern Finland. Dissertations in Forestry and Natural Sciences 246. 2016

Linkit

• LinkedIn Timo Leppänen
• Research gate Timo Leppänen
• Orcid Timo Leppänen
• Linkki Sleep Technology and Analytics Group (STAG)

Tutkimusryhmät

• Sleep Technology and Analytics Group (STAG)