Papillary Muscles
Mostrando 1-12 de 108 artigos, teses e dissertações.
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1. Mortality Rates of Surgical Techniques for Correcting Atrioventricular Disjunction
Abstract We compared the mortality rates of two surgical techniques for correction of atrioventricular disjunction in 10 out of 720 patients who underwent mitral valve replacement from 2005 to 2012. In group I, the mitral annulus was fixed with bovine pericardial strips; in group II, a 'patch' of bovine pericardium was sutured and extended from the base of t
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-12
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2. Batista Procedure with the Aid of Intraoperative Epicardial Echocardiography
Abstract Introduction: The number of cases for which the Batista procedure is indicated is small, but some patients with appropriate indication can achieve good therapeutic results. Objective: To avoid incorrect left ventricular incision and obtain good surgical results in patients with dilated cardiomyopathy suitable for partial left ventriculectomy, we e
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-04
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3. A single resistance exercise session improves myocardial contractility in spontaneously hypertensive rats
Resistance training evokes myocardial adaptation; however, the effects of a single resistance exercise session on cardiac performance are poorly understood or investigated. This study aimed to investigate the effects of a single resistance exercise session on the myocardial contractility of spontaneously hypertensive rats (SHRs). Male 3-month-old SHRs were d
Braz J Med Biol Res. Publicado em: 10/07/2015
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4. Myocardial contractility impairment with racemic bupivacaine, non-racemic bupivacaine and ropivacaine. A comparative study
PURPOSE: To study racemic bupivacaine, non-racemic bupivacaine and ropivacaine on myocardial contractility. METHODS: Isolated Wistar papillary muscles were submitted to 50 and 100 mM racemic bupivacaine (B50 and B100), non-racemic bupivacaine (NR50 and NR100) and ropivacaine (R50 and R100) intoxication. Isometric contraction data were obtained in basal cond
Acta Cir. Bras.. Publicado em: 2015-07
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5. Acute exposure to lead increases myocardial contractility independent of hypertension development
We studied the effects of the acute administration of small doses of lead over time on hemodynamic parameters in anesthetized rats to determine if myocardial contractility changes are dependent or not on the development of hypertension. Male Wistar rats received 320 µg/kg lead acetateiv once, and their hemodynamic parameters were measured for 2 h. Cardiac c
Braz J Med Biol Res. Publicado em: 01/02/2013
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6. Análise da morfologia e da vascularização do aparelho valvar das valvas mitral e tricúspide do homem: analogia com o coração canino / Morphology and vascularization of the human valvar apparatus of the mitral and tricuspid valves: analogy with canine heart
Objetivou-se, neste trabalho, estudar a morfologia e vascularização do aparelho valvar das valvas mitral e tricúspide em corações humanos, comparando os resultados com aqueles obtidos em cães. A estereologia foi usada como ferramenta que permitiu avaliar os volumes entre as cúspides valvares, cordas tendíneas e mm. papilares, para o conhecimento das
Publicado em: 2009
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7. Anatomic study of the subvalvar apparatus of the left atrioventricular valve in human hearts / Estudo anatômico do aparelho subvalvar da valva atrioventricular esquerda de corações humanos
Este estudo foi desenvolvido com a intenção de propor uma classificação anatômica atualizada para o aparelho subvalvar da valva atrioventricular esquerda de corações humanos. A classificação de Pomerantzeff foi desenvolvida utilizando nomes lógicos e correlatos, baseada na posição anatômica do coração, e tem uma inovação: a identificação d
Publicado em: 2008
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8. Eucalyptol, an essential oil, reduces contractile activity in rat cardiac muscle
Eucalyptol is an essential oil that relaxes bronchial and vascular smooth muscle although its direct actions on isolated myocardium have not been reported. We investigated a putative negative inotropic effect of the oil on left ventricular papillary muscles from male Wistar rats weighing 250 to 300 g, as well as its effects on isometric force, rate of force
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-03
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9. Arterial vascularization of the papilares muscles of the left ventricle of the dog´s heart (Canis familiaris - L. 1758) / Vascularização arterial dos músculos papilares do ventrículo esquerdo de cães (Canis familiaris - L. 1758)
Cardiac irrigation, both in man and in other mammals, is a relevant subject that has been researched by several authors, among whom H. Rodrigues and his team, who have been seeking to subsidy the biomorphological base for myocardium vascular diseases. Information about the arterial vases related to papillary muscles is incomplete and scarce in the medical li
Publicado em: 2003
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10. A new surgical approach for treating dilated cardiomyopathy with mitral regurgitation
OBJECTIVE: To evaluate the early outcome of mitral valve prostheses implantation and left ventricular remodeling in 23 patients with end-stage cardiomyopathy and secondary mitral regurgitation (NYHA class III and IV). METHODS: Mitral valvular prosthesis implantation with preservation of papillary muscles and chordae tendinae, and plasty of anteriun cuspid fo
Arquivos Brasileiros de Cardiologia. Publicado em: 2000-02
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11. The medial papillary muscle complex and its related septomarginal trabeculation. A normal anatomical study on human hearts.
The morphology of the medial papillary muscle complex of the right ventricle was studied in 81 normal hearts from subjects ranging in age from 20 weeks of gestation to 13 months. The position of the main medial papillary muscle (of Lancisi) was differentiated in terms of a root and a belly. The anterior aspect of the root was found in a constant position at
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12. Assessment of ventricular elements of mitral valve by left ventriculography.
In the left ventriculogram in the right anterior oblique projection the plane of the mitral valve is seen in profile and the papillary muscle shadows are outlined. The distance from the middle of the papillary muscles to the plane of the mitral valve during systole was used to assess the average length of the chordae tendineae, and the area of the papillary