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  • Title: [Registration with piezoelectric sensors of the in vivo activity of right ventricular contractile elements in acute experimental pulmonary stenosis].
    Author: Irigoyen EH, Méndez RJ.
    Journal: Acta Physiol Pharmacol Latinoam; 1988; 38(1):19-25. PubMed ID: 3201994.
    Abstract:
    Recordings with piezoelectric sensors of the variations of the contractile state due to severe acute pulmonary hypertension, provoked in intact canine hearts, are described. During the stenosis, a proportional increment of the isometric tension of the right ventricular wall and of the right atrial kick, due to the increasing difficulties for the respective blood contents evacuation of both cavities, were appreciated. Furthermore, lost of the right wall compliance, becoming more rigid, limited the systolic and diastolic pressure development of the right ventricle. Meanwhile, the piezoelectric sensor sutured on the left ventricular wall describes the consequent variations of the left ventricular contraction.
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