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Academic literature on the topic 'Balance sympatho-vagale'
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Journal articles on the topic "Balance sympatho-vagale"
Weippert, Matthias, Beatrice Thielmann, Regina Stoll, Eberhard Alexander Pfister, and Irina Böckelmann. "Sympatho-vagale Balance und kardiale Reaktionen bei standardisierten psychomentalen Belastungen / Sympatho-vagal balance and cardiac response to mental challenge." Biomedizinische Technik/Biomedical Engineering 54, no. 4 (January 1, 2009): 197–203. http://dx.doi.org/10.1515/bmt.2009.023.
Full textCugy, D. "Balance sympatho-vagale estimée à partir de la variabilité RR et polysomnographie." Médecine du Sommeil 16, no. 1 (March 2019): 60–61. http://dx.doi.org/10.1016/j.msom.2019.01.119.
Full textGerard, P., and S. Dollfus. "La cohérence cardiaque : état des connaissances actuelles et bénéfices en psychiatrie." European Psychiatry 29, S3 (November 2014): 547. http://dx.doi.org/10.1016/j.eurpsy.2014.09.333.
Full textDissertations / Theses on the topic "Balance sympatho-vagale"
Sayin, Halil. "Balance sympatho-vagale chez le rat éveillé : méthodes d’étude et application à la fibrillation atriale." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1149/document.
Full textThe aim of the present work was (1) to compare the different methods currently used to assess sympathovagal balance (SVB) in rats, and (2) to assess SVB alterations towards vagal predominance on atrial electrical instability in aging spontaneously hypertensive rats (SHR). The electrocardiogram was measured in conscious rats using chronically implanted telemetric probes. The reference method to estimate SVB is based on the calculation of the ratio of intrinsic heart rate (HR) to resting HR. Depending on whether the index is greater or lower than 1, one can conclude to sympathetic or vagal predominance, respectively. Intrinsic HR is obtained after the combined administration of selective antagonists of both branches of the autonomic nervous system, i.e. β- adrenergic blocker (atenolol) and muscarinic receptor antagonist (methylatropine). Other methods (autonomic tones measured separately, calculation of indices derived from heart rate variability analysis) provide inconsistent or conflicting results. The chronic infusion of an acetylcholinesterase inhibitor (pyridostigmine) in aging SHRs induced relative vagal hypertonia (SVB=0.81±0.02) in comparison with untreated rats (SVB=1.06±0.01) along with sinus bradycardia and increased frequency and duration of atrial tachyarrhythmia episodes. These studies highlight the value of the reference method for evaluating SVB in conscious rats. Potentiation of endogenous vagal activity aggravates atrial electrical instability in aging SHRs, consistent with a pathogenic role of the parasympathetic nervous system in this model
Mansour, Christelle. "Évaluation des altérations microcirculatoires et de la balance sympatho-vagale en situation critique : intérêt de modulateurs du système nerveux sympathique." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1302.
Full textAmong the factors involved in the regulation and maintenance of the organs’ functioning, the autonomic nervous system and the microcirculation play a preponderant role. In critical patients, such as septic patients, alterations in the sympathovagal balance and tissue perfusion may occur and have major consequences of morbidity and mortality. The implementation of early detection methods for these disturbances could therefore contribute to improve the survival of patients at risk. Indeed, the monitoring of hemodynamic parameters, as conventionally performed during resuscitation, may be insufficient to detect tissue perfusion alterations: during sepsis, microcirculatory changes may persist despite the normalization of macrocirculatory parameters and are associated with a bad prognosis. With regard to the presence of microcirculatory dysfunctions and autonomic nervous system alterations in critical patients, this research project proposed to evaluate the impact of modulators of the sympathetic system on the sympatho-vagal balance and microcirculation. In order to achieve this, we worked on animal models and animals admitted to the faculty’s veterinary hospital center. Monitoring of the autonomic nervous system was based on a new Parasympathetic Tone Activity (PTA) index. In parallel, the microcirculation was evaluated by videomicroscopy (SDF, Sidestream Dark Field imaging). The PTA index demonstrated a good performance in predicting hemodynamic reactions in anesthetized dogs. It also detected disturbances of the sympathetic balance in horses admitted for colic surgery as well as an alteration of microcirculation despite resuscitation maneuvers. Preclinical studies on the impact of esmolol and dexmedetomidine infusion in a septic swine model showed that, despite their potential hemodynamic effects, these agents did not have a negative effect on the microcirculation. Thus, these findings suggest a beneficial effect of the modulators of the sympathetic nervous system on the microcicultion, however, these resutls should be confirmed on a larger scale
Huynh, Nelly. "La balance sympatho-vagale et le bruxisme du sommeil." Thèse, 2006. http://hdl.handle.net/1866/15366.
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