| Novel parameters indicate significant differences in severity of obstructive sleep apnea with patients having similar apnea–hypopnea index A Kulkas, P Tiihonen, P Julkunen, E Mervaala, J Töyräs Medical & biological engineering & computing 51, 697-708, 2013 | 124 | 2013 |
| The severity of individual obstruction events is related to increased mortality rate in severe obstructive sleep apnea A Muraja‐Murro, A Kulkas, M Hiltunen, S Kupari, T Hukkanen, P Tiihonen, ... Journal of Sleep Research 22 (6), 663-669, 2013 | 99 | 2013 |
| Severity of desaturations reflects OSA-related daytime sleepiness better than AHI S Kainulainen, J Töyräs, A Oksenberg, H Korkalainen, S Sefa, A Kulkas, ... Journal of Clinical Sleep Medicine 15 (8), 1135-1142, 2019 | 93 | 2019 |
| Novel parameters for evaluating severity of sleep disordered breathing and for supporting diagnosis of sleep apnea-hypopnea syndrome A Kulkas, P Tiihonen, K Eskola, P Julkunen, E Mervaala, J Töyräs Journal of Medical Engineering & Technology 37 (2), 135-143, 2013 | 80 | 2013 |
| Adjustment of apnea-hypopnea index with severity of obstruction events enhances detection of sleep apnea patients with the highest risk of severe health consequences A Muraja-Murro, A Kulkas, M Hiltunen, S Kupari, T Hukkanen, P Tiihonen, ... Sleep and Breathing 18, 641-647, 2014 | 72 | 2014 |
| Severity of desaturation events differs between hypopnea and obstructive apnea events and is modulated by their duration in obstructive sleep apnea A Kulkas, B Duce, T Leppänen, C Hukins, J Töyräs Sleep and Breathing 21, 829-835, 2017 | 60 | 2017 |
| Severity of individual obstruction events increases with age in patients with obstructive sleep apnea T Leppänen, J Töyräs, E Mervaala, T Penzel, A Kulkas Sleep medicine 37, 32-37, 2017 | 58 | 2017 |
| Elevated BIS and E ntropy values after sugammadex or neostigmine: an electroencephalographic or electromyographic phenomenon? AJ Aho, K Kamata, A Yli‐Hankala, LP Lyytikäinen, A Kulkas, V Jäntti Acta anaesthesiologica scandinavica 56 (4), 465-473, 2012 | 48 | 2012 |
| Severe desaturations increase psychomotor vigilance task-based median reaction time and number of lapses in obstructive sleep apnoea patients S Kainulainen, B Duce, H Korkalainen, A Oksenberg, A Leino, ... European Respiratory Journal 55 (4), 2020 | 47 | 2020 |
| Length of individual apnea events is increased by supine position and modulated by severity of obstructive sleep apnea T Leppänen, J Töyräs, A Muraja-Murro, S Kupari, P Tiihonen, E Mervaala, ... Sleep disorders 2016, 2016 | 46 | 2016 |
| Severity of individual obstruction events is gender dependent in sleep apnea T Leppänen, A Kulkas, B Duce, E Mervaala, J Töyräs Sleep and Breathing 21, 397-404, 2017 | 45 | 2017 |
| Comparison of Bispectral Index and Entropy values with electroencephalogram during surgical anaesthesia with sevoflurane AJ Aho, K Kamata, V Jäntti, A Kulkas, S Hagihira, H Huhtala, ... British journal of anaesthesia 115 (2), 258-266, 2015 | 41 | 2015 |
| Increase in body mass index decreases duration of apneas and hypopneas in obstructive sleep apnea T Leppänen, A Kulkas, E Mervaala, J Töyräs Respiratory care 64 (1), 77-84, 2019 | 35 | 2019 |
| Novel wireless electroencephalography system with a minimal preparation time for use in emergencies and prehospital care A Jakab, A Kulkas, T Salpavaara, P Kauppinen, J Verho, H Heikkilä, ... Biomedical engineering online 13, 1-13, 2014 | 30 | 2014 |
| New tracheal sound feature for apnoea analysis A Kulkas, E Huupponen, J Virkkala, M Tenhunen, A Saastamoinen, ... Medical & biological engineering & computing 47, 405-412, 2009 | 29 | 2009 |
| Amount of weight loss or gain influences the severity of respiratory events in sleep apnea A Kulkas, T Leppänen, J Sahlman, P Tiihonen, E Mervaala, J Kokkarinen, ... Medical & biological engineering & computing 53, 975-988, 2015 | 28 | 2015 |
| Effect of different oxygen desaturation threshold levels on hypopnea scoring and classification of severity of sleep apnea S Myllymaa, K Myllymaa, S Kupari, A Kulkas, T Leppänen, P Tiihonen, ... Sleep and Breathing 19, 947-954, 2015 | 28 | 2015 |
| Gender differences in severity of desaturation events following hypopnea and obstructive apnea events in adults during sleep A Kulkas, B Duce, T Leppänen, C Hukins, J Töyräs Physiological Measurement 38 (8), 1490, 2017 | 24 | 2017 |
| Differences in arousal probability and duration after apnea and hypopnea events in adult obstructive sleep apnea patients T Leppänen, A Kulkas, A Oksenberg, B Duce, E Mervaala, J Töyräs Physiological measurement 39 (11), 114004, 2018 | 23 | 2018 |
| Morbidity and mortality risk ratios are elevated in severe supine dominant OSA: a long-term follow-up study A Kulkas, A Muraja-Murro, P Tiihonen, E Mervaala, J Töyräs Sleep and Breathing 19, 653-660, 2015 | 22 | 2015 |
