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Enclosed Zone Flow-mediated Dilation (ezFMD): Development of a Novel Method for Evaluating Vascular Endothelial Function through Medical and Engineering Collaboration

Toshio Tsuji, Harutoyo Hirano, Yukihito Higashi, Masao Yoshizumi
2019 The Journal of Japanese College of Angiology  
J Am Coll Cardiol 2002; 39: Kutluk A, Tsuji T, Ukawa T, et al: A novel online method to monitor autonomic nervous activity based on arterial wall impedance and heart rate variability.  ...  J Am Heart Assoc 2016; 5: e0043851 9) Hirano H, Takama R, Matsumoto R, et al: Assessment of lower-limb vascular endothelial function based on enclosed zone flow-mediated dilation.  ...  Our research group has developed a novel non-invasive technique for assessment of vascular endothelial function by using the oscillometric method, which is called the enclosed zone flowmediated dilation  ... 
doi:10.7133/jca.19-00002 fatcat:g4klc5bmjvfvdhy3jfw2y5wamy

Hemodynamic and autonomic nervous responses to the restriction of femoral blood flow by KAATSU

H. Iida, H. Takano, K. Meguro, K. Asada, H. Oonuma, T. Morita, M. Kurano, F. Sakagami, K. Uno, K. Hirose, T. Nagata, K. Takenaka (+7 others)
2005 International Journal of KAATSU Training Research  
Compared with the effect on autonomic nervous activities with LNBP, pressurization of 200 mmHg on both legs also has an effect equal to a LNBP of about -20~-30 mmHg.  ...  inferior vena cava (IVC), heart rate (HR), mean blood pressure (mBP), total peripheral resistance (TPR) and heart rate variability (HRV).  ... 
doi:10.3806/ijktr.1.57 fatcat:zpdwlq7qhnfk3itj43k3jdehae

Decreased baroreflex sensitivity in acute schizophrenia

Karl-Jürgen Bär, Michael Karl Boettger, Sandy Berger, Vico Baier, Heinrich Sauer, Vikram K. Yeragani, Andreas Voss
2007 Journal of applied physiology  
To date, several physiological studies assessing the autonomic nervous system (ANS) in schizophrenic patients reported an increased heart rate (5, 28, 37-39).  ...  cardiac medications or central nervous system active medications), as assessed using a questionnaire and a careful patient history.  ...  ACKNOWLEDGMENTS We are grateful to Dr. R.  ... 
doi:10.1152/japplphysiol.00811.2006 pmid:17110512 fatcat:2trhx62po5erbownhqtmi3aoea

Noninvasive Techniques for Prevention of Intradialytic Hypotension

L. Sornmo, F. Sandberg, E. Gil, K. Solem
2012 IEEE Reviews in Biomedical Engineering  
It is concluded that cardiovascular variables which reflect heart rate variability, heart rate turbulence, and baroreflex sensitivity are important to explore in feedback control hemodialysis systems so  ...  Following a brief overview of well-established hypotension-related variables, including blood pressure, blood temperature, relative blood volume, and bioimpedance, special attention is given to electrocardiographic  ...  A recent method explores modulation of the PPG signal by heart rate and respiratory rate [101] . Such modulation is considered to be related to changes in arterial and venous pulsations.  ... 
doi:10.1109/rbme.2012.2210036 pmid:23231988 fatcat:wlalw254gvbr7mf2isy7xocar4

Arterial Stiffness and Endothelial Function in Young Obese Patients - Vascular Resistance Matters

Barbora Czippelova, Zuzana Turianikova, Jana Krohova, Radovan Wiszt, Zuzana Lazarova, Katarina Pozorciakova, Miriam Ciljakova, Michal Javorka
2019 Journal of atherosclerosis and thrombosis  
Motivated by the paradoxical and differing results of the early atherosclerosis related indices - Cardio-Ankle Vascular Index (CAVI) reflecting arterial stiffness and Reactive Hyperemia Index (RHI) evaluating  ...  endothelium dependent flow-induced vasodilation - in obesity, we aimed to assess CAVI and RHI in obese adolescents and young adults in the context of differences in systemic vascular resistance (SVR).  ...  Acknowledgment Research was supported by grants VEGA 1/0117/17, VEGA 1/0200/19, ITMS project "Center of Excellence for perinatological research II" no.26220120036 and ITMS project "BioMed Martin" no.26220220187  ... 
doi:10.5551/jat.47530 pmid:30930343 pmcid:PMC6845697 fatcat:nv7hkqvtdzbbrhpti6cewuq2ae

Renal Denervation Suppresses Coronary Hyperconstricting Responses After Drug-Eluting Stent Implantation in Pigs In Vivo Through the Kidney–Brain–Heart AxisHighlights

Hironori Uzuka, Yasuharu Matsumoto, Kensuke Nishimiya, Kazuma Ohyama, Hideaki Suzuki, Hirokazu Amamizu, Susumu Morosawa, Michinori Hirano, Tomohiko Shindo, Yoku Kikuchi, Kiyotaka Hao, Takashi Shiroto (+8 others)
2017 Arteriosclerosis, Thrombosis and Vascular Biology  
findings suggest that RDN could be a novel therapeutic option for refractory angina through the kidney-brain-heart axis.  ...  Catheter-based renal denervation (RDN) inhibits sympathetic nerve activity.  ...  Watanabe and A. Nishihara for their excellent technical assistance and Asahi Kasei Pharma for providing hydroxyfasudil.  ... 
doi:10.1161/atvbaha.117.309777 pmid:28818859 fatcat:bf5jcx2o5jaddbwhieyq2chsre

Cuff-Less and Continuous Blood Pressure Monitoring: A Methodological Review

Manuja Sharma, Karinne Barbosa, Victor Ho, Devon Griggs, Tadesse Ghirmai, Sandeep Krishnan, Tzung Hsiai, Jung-Chih Chiao, Hung Cao
2017 Technologies  
For years, the cuff-based sphygmomanometer and the arterial invasive line have been the gold standards for care professionals to assess BP.  ...  They do not require a caregiver or experienced personnel to operate and hence can be used to monitor BP in the home setting.  ...  HR and BP are also regulated by the autonomic nervous system which has been found to be inversely related, depending on the baroreflex activity [117] .  ... 
doi:10.3390/technologies5020021 fatcat:3cf5bwodurbb5m5bi6kwusazmq

Mathematical models of cardiovascular control by the autonomic nervous system [article]

Michel Kana
2019 arXiv   pre-print
Results show higher vagal tone on young subjects with a decreasing trend with aging, what agrees with the data from heart rate variability studies.  ...  This PhD thesis develops an integrated mathematical model for autonomic nervous system control on cardiovascular activity.  ...  It presents prominent methods for quantifying autonomic nervous activity such as heart rate variability.  ... 
arXiv:1901.05071v2 fatcat:xwjz7vvah5bx7nzlu26p6ho47y

Study for Promotion of Health in Recycling Lead – Rationale and design

Azusa Hara, Yu-Mei Gu, Thibault Petit, Yan-Ping Liu, Lotte Jacobs, Zhen-Yu Zhang, Wen-Yi Yang, Yu Jin, Lutgarde Thijs, Fang-Fei Wei, Tim S. Nawrot, Jan A. Staessen
2015 Blood Pressure  
measurement; (ii) indexes of glomerular and tubular renal function, (iii) heart rate variability analyzed in the frequency domain as measure of autonomous sympathetic modulation, (iv) peripheral nerve  ...  The main outcome variables to be studied are (i) blood pressure (BP) analyzed as a continuous or categorical variable, both cross-sectionally and longitudinally, and using conventional and ambulatory BP  ...  Acknowledgment The authors gratefully acknowledge the contribution of the staff at the Studies Coordination Centre in Leuven: Linda Custers, Annick De Soete, Marie-Jeanne Jehoul, Yvette Piccart, Daisy Thijs, and  ... 
doi:10.3109/08037051.2014.996409 pmid:25620211 fatcat:enh54vxkffevbdjnkhhyhegjc4

Track E

2014 Biomedical Engineering  
Treatment with analgetics however is based primarily on patient self-assessment and/or the experience of the responsible physician.  ...  Numerical rating scales (NRS) and visual analogue scales (VAS) are common to help evaluate the intensity of an individual's pain [3].  ...  Acknowledgements The work was supported by the Ministry of Economy, Construction and Tourism of Mecklenburg-Vorpommern and the European Commission (V220-630-08-TFMV-S-064/F-064).  ... 
doi:10.1515/bmt-2014-5004 pmid:25385889 fatcat:x3jh6bu7lzg37jbwayvqd2xfrm

Inspiratory muscle strength training lowers blood pressure and sympathetic activity in older adults with OSA: A randomized controlled pilot trial

Guadalupe Elizabeth Ramos-Barrera, Claire M DeLucia, E Fiona Bailey
2020 Journal of applied physiology: respiratory, environmental and exercise physiology  
Conversely, subjects allocated to the control group showed no change in casual blood pressure or muscle sympathetic nerve activity and a trend toward higher overnight blood pressures.  ...  Subjects were randomly assigned to one of two interventions i) high intensity IMST (n=15, 75% maximal inspiratory pressure) or ii) a control intervention (n=10, 15% maximum inspiratory pressure).  ...  GRANTS This work was supported by American Heart Association Grant in Aid 16GRNT26700007 (to E.F.B.).  ... 
doi:10.1152/japplphysiol.00024.2020 pmid:32730174 fatcat:ltdd46b62nchhczhdbztk4rbrm


2021 Biomedical Engineering  
We propagate OPM-MMG as a complementary, neurophysiological method.  ...  Only one machine required to test hip and knee joint types and fully meets the requirements of both, ISO 14242-1 for hip and ISO 14243-3 for knee.  ...  Tech. 2021 66(s1): S96-S158 • © by Walter de Gruyter • Berlin • Boston Acknowledgements The authors would like to thank our student Abdulhadi Doumei for his laboratory work and the Caroline Herschel  ... 
doi:10.1515/bmt-2021-6018 pmid:34598363 fatcat:nj3ib6kodrb6fo5s6ov5zitpdi

A Review of Psychophysiological Measures to Assess Cognitive States in Real-World Driving

Monika Lohani, Brennan R. Payne, David L. Strayer
2019 Frontiers in Human Neuroscience  
These include: electroencephalography and event-related potentials, optical imaging, heart rate and heart rate variability, blood pressure, skin conductance, electromyography, thermal imaging, and pupillometry  ...  For each of these measures, an overview is provided, followed by a discussion of the methods for measuring it in a driving context.  ...  AUTHOR CONTRIBUTIONS All authors listed have made a substantial, direct and intellectual contribution to the work, and approved it for publication.  ... 
doi:10.3389/fnhum.2019.00057 pmid:30941023 pmcid:PMC6434408 fatcat:7dtvt24lrnge7bzsnqsvsbfetq

Track C

2014 Biomedical Engineering  
that finds appropriate parameter values autonomously.  ...  The scheme is capable to cope with inappropriately initialized parameter values. In experiments it is validated for two scenarios simulating inappropriate parameter values.  ...  The author would like to thank Christopher Dörr, THM, for helpful discussions and Youssef Belhoucine, THM, for help with ECG recording.  ... 
doi:10.1515/bmt-2014-5002 pmid:25385887 fatcat:duiajlu3i5gdffz5o4extkvyjm

The Pulse of Asia 2018 Kyoto

2018 Pulse  
Methods: We evaluated pulse wave form before and after cibenzoline administration. The patient torelated 300 mg three times a day.  ...  Physical activity was measured by using a physical activity monitor. Participants wore the activity monitors daily.  ...  The chief contributors being the autonomic nervous system and renin-angiotensin-aldosterone system (RAAS).  ... 
doi:10.1159/000489682 fatcat:otgz4or5tjac7mknesw7mhchsi
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