Searched for: author%3A%22Westerhof%2C+B.E.%22
(1 - 7 of 7)
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Meijboom, L.J. (author), Westerhof, B.E. (author), Nollen, G.J. (author), Spaan, J.A.E. (author), de Mol, B.A.J.M. (author), Jacobs, M.J.H.M. (author), Mulder, B.J.M. (author), TNO Biomedical Instrumentation (author)
Objective: β-blocking therapy is the standard therapy in non-operated Marfan patients, however its efficacy after entire aortic replacement is unknown. The aim of this study was to describe the influence of (nearly) entire aortic replacement and β-blocking therapy on blood pressure and wave reflections in Marfan patients. Methods: Four Marfan...
article 2004
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Gisolf, J. (author), Westerhof, B.E. (author), van Dijk, N. (author), Wesseling, K.H. (author), Wieling, W. (author), Karemaker, J.M. (author), TNO Industrie (author)
Objectives We set out to determine the effect of sublingual nitroglycerin (NTG), as used during routine tilt testing in patients with unexplained syncope, on hemodynamic characteristics and baroreflex control of heart rate (HR) and systemic vascular resistance (SVR). Background Nitroglycerin is used in tilt testing to elicit a vasovagal response...
article 2004
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Westerhof, B.E. (author), Gisolf, J. (author), Stok, W.J. (author), Wesseling A, K.H. (author), Karemaker, J.M. (author), TNO Biomedical Instrumentation Technisch Physische Dienst TNO - TH (author)
Objective: To test a new method (cross-correlation baroreflex sensitivity, xBRS) for the computation of time-domain baroreflex sensitivity on spontaneous blood pressure and heart interval variability using the EUROBAVAR data set. Methods: We applied xBRS to the 42 records in the EUROBAVAR data set, obtained from 21 patients in the lying and...
article 2004
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Nollen, G.J. (author), Westerhof, B.E. (author), Groenink, M. (author), Osnabrugge, A. (author), van der Wall, E.E. (author), Mulder, B.J.M. (author), TNO Industrie (author)
Objective: To investigate the heterogeneous response to β blockade in patients with Marfan syndrome by non-invasive assessment of the aortic pressure-area curve. Design and patients: 25 patients with the Marfan syndrome who used β blocking agents (mean (SD) age, 29 (10) years; 20 men, five women), seven without β blockade (34 (14) years; five...
article 2004
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Guelen, I. (author), Westerhof, B.E. (author), van der Sar, G.L. (author), van Montfrans, G.A. (author), Kiemeneij, F. (author), Wesseling, K.H. (author), Bos, W.J.W. (author), Gaubius Instituut TNO (author)
Objective: To evaluate three methods aimed at the reconstruction of brachial pressure from non-invasive finger arterial pressure measurements as implemented in the Finometer™, (FMS, Finapres Measurement Systems, Arnhem, Netherlands), the successor to the Finapres™ (TNO Siomedical Instrumentation, Amsterdam, Netherlands). Methods: Finger arterial...
article 2003
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Segers, P. (author), Stergiopulos, N. (author), Schreuder, J.J. (author), Westerhof, B.E. (author), Westerhof, N. (author)
It is generally accepted that the left ventricle (LV) hypertrophies (LVH) to normalize systolic wall stress (σ(s)) in chronic pressure overload. However, LV filling pressure (P(v)) may be elevated as well, supporting the alternative hypothesis of end-diastolic wall stress (σ(d)) normalization in LVH. We used an LV time-varying elastance model...
article 2000
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Stergiopulos, N. (author), Westerhof, B.E. (author), Westerhof, N. (author), TNO Biomedical Instrumentation (author)
We propose a new method to derive aortic pressure from peripheral pressure and velocity by using a time domain approach. Peripheral pressure is separated into its forward and backward components, and these components are then shifted with a delay time, which is the ratio of wave speed and distance, and added again to reconstruct aortic pressure....
article 1998
Searched for: author%3A%22Westerhof%2C+B.E.%22
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