Antti Kulkas
Antti Kulkas
Adjunct Professor, University of Eastern Finland, Chief Physicist, Seinäjoki Central Hospital
Verified email at epshp.fi
TitleCited byYear
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 (6), 697-708, 2013
602013
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
422013
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 (3), 641-647, 2014
342014
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
312013
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
232012
New tracheal sound feature for apnoea analysis
A Kulkas, E Huupponen, J Virkkala, M Tenhunen, A Saastamoinen, ...
Medical & biological engineering & computing 47 (4), 405-412, 2009
212009
Detection of compressed tracheal sound patterns with large amplitude variation during sleep
A Kulkas, E Rauhala, E Huupponen, J Virkkala, M Tenhunen, ...
Medical & biological engineering & computing 46 (4), 315-321, 2008
212008
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
192016
Compressed tracheal sound analysis in screening of sleep-disordered breathing
E Rauhala, J Hasan, A Kulkas, A Saastamoinen, E Huupponen, ...
Clinical Neurophysiology 119 (9), 2037-2043, 2008
172008
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 (3), 947-954, 2015
152015
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
142017
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 (2), 397-404, 2017
142017
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 (10), 975-988, 2015
142015
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), 60, 2014
132014
Intelligent methods for identifying respiratory cycle phases from tracheal sound signal during sleep
A Kulkas, E Huupponen, J Virkkala, M Tenhunen, A Saastamoinen, ...
Computers in Biology and Medicine 39 (11), 1000-1005, 2009
132009
Diffuse sleep spindles show similar frequency in central and frontopolar positions
E Huupponen, A Kulkas, M Tenhunen, A Saastamoinen, J Hasan, ...
Journal of neuroscience methods 172 (1), 54-59, 2008
122008
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 (4), 829-835, 2017
112017
Novel parameters reflect changes in morphology of respiratory events during weight loss
A Kulkas, T Leppänen, J Sahlman, P Tiihonen, E Mervaala, J Kokkarinen, ...
Physiological measurement 34 (9), 1013, 2013
112013
Improved computational fronto-central sleep depth parameters show differences between apnea patients and control subjects
E Huupponen, T Saunamäki, A Saastamoinen, A Kulkas, M Tenhunen, ...
Medical & biological engineering & computing 47 (1), 3-10, 2009
112009
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
102015
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