Pulsed-wave tissue Doppler imaging of the myocardium of cats with induced thyrotoxicosis/Doppler tecidual pulsado do miocardio de gatos com tirotoxicose induzida

Left ventricular myocardial motion was quantified using pulsed-wave tissue Doppler imaging (PW-TDI) in nine adult cats before and after thyrotoxicosis induction. In order to induce thyrotoxicosis, all cats were given 150 µg [kg.sup.-1] of levothyroxine sodium as a single oral dose each day for 10 we...

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Bibliographic Details
Published in:Ciência rural 2011-06, Vol.41 (6), p.1024-1029
Main Authors: de Oliveira, Daniel Capucho, Borlini, Daniel Cometti, dos Santos, Warley Gomes, Monteiro, Jessica Nascimento Moraes, Costa, Lorena Adao Vescovi Sellos, Sobrinho, Aloir Queiroz Araujo, Costa, Fabiano Sellos
Format: Article
Language:eng ; spa
Subjects:
cat
Doppler tecidual
echocardiography
ecocardiografia
gato
Heart beat
hipertiroidismo
hyperthyroidism
Thyroid diseases
tissue Doppler imaging
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Summary:Left ventricular myocardial motion was quantified using pulsed-wave tissue Doppler imaging (PW-TDI) in nine adult cats before and after thyrotoxicosis induction. In order to induce thyrotoxicosis, all cats were given 150 µg [kg.sup.-1] of levothyroxine sodium as a single oral dose each day for 10 weeks. PW-TDI examinations were performed immediately before the induction and by the end of the experimental protocol. An increase in myocardial motion velocity was documented at the interventricular septum level, demonstrated by an elevation in systolic (Sa), and early (Ea) and late (Aa) diastolic waves (P
ISSN:0103-8478
1678-4596