caa a22 4500 465783600 CHVBK 20180323112002.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF02446143 doi (NATIONALLICENCE)springer-10.1007/BF02446143 Spectral analysis and acoustic transmission of mitral and aortic valve closure sounds in dogs [Elektronische Daten] Part 2 Effects of neuromuscular blockade, sternotomy and pacemaker control, and a two-week recovery period [L. Durand, Y. Langlois, T. Lanthier, R. Chiarella, P. Coppens, S. Carioto, S. Bertrand-Bradley] The paper describes the effects of neuromuscular blockade, sternotomy and atrio-ventricular pacing, and a two-week recovery period on the spectra and acoustic transmission of mitral M1 and aortic A2 sound components in dogs. Results indicate that neuromuscular blockade does not affect the attenuation properties of the heart/thorax acoustic system even if it modifies the intensity of M1 and the phase of the transfer function. The immediate effect of sternotomy and cardiac pacing is an important increase in the attenuation of the heart/thorax acoustic system. This increased attenuation is different for both sounds (20 dB for M1 and 11 dB for A2) and disappears after a two-week recovery period. However, the resulting controlled dog model shows slightly different acoustic characteristics than those of the normal animal model. IFMBE, 1990 Aortic valve nationallicence Heart sounds nationallicence Heart/thorax acoustic system nationallicence Mitral valve nationallicence Neuromuscular blockade nationallicence Pacemaker control nationallicence Spectral analysis nationallicence Sternotomy nationallicence Durand L. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut Langlois Y. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut Lanthier T. Department of Medicine, Faculty of Veterinary Medicine, University of Montreal, 3200 Sicotte Street, J2S 7C6, St-Hyacinthe, Quebec, Canada aut Chiarella R. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut Coppens P. Department of Medicine, Faculty of Veterinary Medicine, University of Montreal, 3200 Sicotte Street, J2S 7C6, St-Hyacinthe, Quebec, Canada aut Carioto S. Department of Surgery, Hôtel-Dieu de Montréal Hospital, 3840 St-Urbain, Quebec, Canada aut Bertrand-Bradley S. Medtronic of Canada, 1 Place du Commerce, Suite 170, Ile des Soeurs, H3E 1A2, Verdun, Quebec, Canada aut Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/4(1990-07-01), 278-286 0140-0118 28:4<278 1990 28 11517 https://doi.org/10.1007/BF02446143 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02446143 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Durand L. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut NATIONALLICENCE 700 1- Langlois Y. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut NATIONALLICENCE 700 1- Lanthier T. Department of Medicine, Faculty of Veterinary Medicine, University of Montreal, 3200 Sicotte Street, J2S 7C6, St-Hyacinthe, Quebec, Canada aut NATIONALLICENCE 700 1- Chiarella R. Laboratory of Biomedical Engineering, Clinical Research Institute of Montreal, University of Montreal, 110 West Pine Avenue, H2W 1R7, Quebec, Canada aut NATIONALLICENCE 700 1- Coppens P. Department of Medicine, Faculty of Veterinary Medicine, University of Montreal, 3200 Sicotte Street, J2S 7C6, St-Hyacinthe, Quebec, Canada aut NATIONALLICENCE 700 1- Carioto S. Department of Surgery, Hôtel-Dieu de Montréal Hospital, 3840 St-Urbain, Quebec, Canada aut NATIONALLICENCE 700 1- Bertrand-Bradley S. Medtronic of Canada, 1 Place du Commerce, Suite 170, Ile des Soeurs, H3E 1A2, Verdun, Quebec, Canada aut NATIONALLICENCE 773 0- Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/4(1990-07-01), 278-286 0140-0118 28:4<278 1990 28 11517 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 465783155 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer