Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Henri, Korkalainen"'
Autor:
Purbanka Pahari, Henri Korkalainen, Erna Sif Arnardóttir, Anna Sigridur Islind, Elias August, Arie Oksenberg, Juha Töyräs, Timo Leppänen, Sami Nikkonen
Publikováno v:
ERJ Open Research, Vol 10, Iss 4 (2024)
Introduction Intermittent hypoxaemia is closely associated with cardiovascular dysfunction and may be a more accurate indicator of obstructive sleep apnoea (OSA) severity than conventional metrics. Another key factor is the lung-to-finger circulation
Externí odkaz:
https://doaj.org/article/b0a7c32fabf943dab8d1617d543e6e35
Autor:
Mieli Luukinen, Henna Pitkanen, Timo Leppanen, Juha Toyras, Anna Sigridur Islind, Samu Kainulainen, Henri Korkalainen
Publikováno v:
IEEE Journal of Translational Engineering in Health and Medicine, Vol 12, Pp 328-339 (2024)
Objective: The aim of this study was to assess how the photoplethysmogram frequency and amplitude responses to arousals from sleep differ between arousals caused by apneas and hypopneas with and without blood oxygen desaturations, and spontaneous aro
Externí odkaz:
https://doaj.org/article/fd40be918b534e3ba2e48afa6cdc84b8
Autor:
Henri Korkalainen, Ding Zou
Publikováno v:
Frontiers in Sleep, Vol 3 (2024)
Externí odkaz:
https://doaj.org/article/a8b6b294e5a6495fbb7d77e6cb70ee9b
Autor:
Samu Kainulainen, Aaron Suni, Jukka A. Lipponen, Antti Kulkas, Brett Duce, Henri Korkalainen, Sami Nikkonen, Saara Sillanmäki
Publikováno v:
Annals of Noninvasive Electrocardiology, Vol 29, Iss 1, Pp n/a-n/a (2024)
Abstract Background Obesity is a global issue with a major impact on cardiovascular health. This study explores how obesity influences nocturnal cardiac electrophysiology in suspected obstructive sleep apnea (OSA) patients. Methods We randomly select
Externí odkaz:
https://doaj.org/article/d44fb3d3f3f843af9bce0d164176e036
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract Sleep research often relies on large retrospective clinical datasets. However, as the data is usually stored in proprietary formats specific for each sleep software, the raw data cannot be easily accessed and analyzed with external tools. Wh
Externí odkaz:
https://doaj.org/article/e2f3c4499e14449a89985be0ad7c4ff4
Publikováno v:
Frontiers in Neurology, Vol 14 (2023)
Obstructive Sleep Apnea (OSA) arises due to periodic blockage of the upper airway (UA) during sleep, as negative pressure generated during inspiration overcomes the force exerted by the UA dilator muscles to maintain patency. This imbalance is primar
Externí odkaz:
https://doaj.org/article/d42c956b1dae4200a42c363eb58e64f6
Autor:
Pranavan Somaskandhan, Timo Leppänen, Philip I. Terrill, Sigridur Sigurdardottir, Erna Sif Arnardottir, Kristín A. Ólafsdóttir, Marta Serwatko, Sigurveig Þ. Sigurðardóttir, Michael Clausen, Juha Töyräs, Henri Korkalainen
Publikováno v:
Frontiers in Neurology, Vol 14 (2023)
IntroductionVisual sleep scoring has several shortcomings, including inter-scorer inconsistency, which may adversely affect diagnostic decision-making. Although automatic sleep staging in adults has been extensively studied, it is uncertain whether s
Externí odkaz:
https://doaj.org/article/389b8025dbb648c7a5e956bf365d50b3
Autor:
Saara Sillanmäki, Jukka A. Lipponen, Henri Korkalainen, Antti Kulkas, Timo Leppänen, Sami Nikkonen, Juha Töyräs, Brett Duce, Aaron Suni, Samu Kainulainen
Publikováno v:
BMC Pulmonary Medicine, Vol 22, Iss 1, Pp 1-10 (2022)
Abstract Background Obstructive sleep apnea (OSA) is associated with vascular diseases from which stroke and sudden cardiac death are the most significant ones. It is known that disturbances of the autonomic nervous system and electrocardiographic ch
Externí odkaz:
https://doaj.org/article/e52af467512d4e7cb950a3f552b2ef8d
Autor:
Akseli Leino, Henri Korkalainen, Laura Kalevo, Sami Nikkonen, Samu Kainulainen, Alexander Ryan, Brett Duce, Kirsi Sipila, Jari Ahlberg, Johanna Sahlman, Tomi Miettinen, Susanna Westeren-Punnonen, Esa Mervaala, Juha Toyras, Sami Myllymaa, Timo Leppanen, Katja Myllymaa
Publikováno v:
IEEE Access, Vol 10, Pp 26554-26566 (2022)
We have previously developed an ambulatory electrode set (AES) for the measurement of electroencephalography (EEG), electrooculography (EOG), and electromyography (EMG). The AES has been proven to be suitable for manual sleep staging and self-applica
Externí odkaz:
https://doaj.org/article/a509797a45ca439791fc6d25f7575b2d
Autor:
Samu Kainulainen, Henri Korkalainen, Sigriur Sigurdardottir, Sami Myllymaa, Marta Serwatko, Sigurveig pora Sigurdardottir, Michael Clausen, Timo Leppanen, Erna Sif Arnardottir
Publikováno v:
IEEE Access, Vol 9, Pp 110916-110926 (2021)
We aimed to investigate differences in the electroencephalography (EEG) signal characteristics recorded with a type II polysomnography (PSG) setup including the American Academy of Sleep Medicine recommended EEG montage and Self Applied Somnography (
Externí odkaz:
https://doaj.org/article/0480c5b54638440aa963322088db1139