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isovolumic contraction

   Also found in: Wikipedia 0.01 sec.
isovolumic contraction
[-vəlo̅o̅′mik]
Etymology: Gk, isos + L, volumen, paper roll, contractio, drawing together
the early phase of systole, in which the myocardial muscle fibers have begun to shorten but have not developed enough pressure in the ventricles to overcome the aortic and pulmonary end-diastolic pressures and open the aortic and pulmonary valves. During this period of muscle fiber contraction, the ventricular volumes do not change. See also afterload.


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Smoking of mentholated cigarette, but not regular cigarette smoking, increased tricuspid E deceleration time and right ventricular isovolumic contraction time (p=0.
Mentholated cigarette smoking induced alterations in left and right ... by Ciftci, Ozgur; Caliskan, Mustafa; Gullu, Hakan; Yildirir, Aylin; Muderrisoglu, Haldun / The Anatolian Journal of Cardiology (Anadolu Kardiyoloji Dergisi)
Methods: The MPI was defined as the sum of the isovolumic contraction time (ICT) and the IRT divided by the ejection time (ET), and was calculated in 13 controls (group 1), and 39 patients with ischemic heart disease with left ventricular systolic dysfunction (ejection fraction<50%).
Is the myocardial performance index a reliable parameter in patients ... by Yilmaz, Remzi; Gur, Mustafa; Demirbag, Recep / The Anatolian Journal of Cardiology (Anadolu Kardiyoloji Dergisi)
001) as compared to the LVD group due to a prolonged LVET and a reduced IRT and isovolumic contraction time (ICT).
The index of myocardial performance and aortic regurgitation: the ... by Ortiz, Aurelio A.; Lavine, Steven J. / The Anatolian Journal of Cardiology (Anadolu Kardiyoloji Dergisi)
 
 
 
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