Revascularização miocárdica e restauração ventricular por meio da pacopexia

Breda, João Roberto; Aguiar, Luciano F.; Branco, João Nelson Rodrigues; Catani, Roberto; Pinto, Ibraim Masciarelli Francisco; Nakano, Edson Minoru; Buffolo, Ênio

doi:10.1590/s0066-782x2007000200007

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…There is a vast literature linking the shape alteration arising from remodeling adverse to disease progression and heart failure functional class [ 2 , 3 , 28 ]. Due to the significant importance of cardiac architecture, several therapeutic strategies seek to restore it, aiming at better ventricular function [ 5 , 25 , 26 ].…”

Section: Discussionmentioning

confidence: 99%

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Morphogeometric Evaluation of the Left Ventricle and Left Atrioventricular Ring in Dogs: A Computerized Anatomical Study

Cardoso

Brandão

Juliani

et al. 2023

Animals

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In veterinary, there is scarce availability of morphogeometric studies in normal and remodeled hearts; furthermore, ventricular geometry acts as an indicator of cardiac function. It is a highly necessary field of knowledge for the development of therapeutic protocols, especially surgical ones. The objectives of this study were: to obtain measurements of the left atrioventricular valve ring and left ventricle, to analyze the proportionality between the segments of the left cardiac chamber of normal hearts and to describe reference values for morphogeometric analysis of the left ventricle. For this, 50 hearts from small (Group 1—G1) and medium to large (Group 2—G2) dogs were laminated in the apical, basal and equatorial segments, and submitted to computer analysis to identify the perimeter of each segment and the left atrioventricular ring, wall thickness and distance from the atrioventricular sulcus to the apex. The largest internal perimeter was that of the equatorial. The basal segment had the highest mean for ventral parietal wall thickness, suggesting greater contractile reserve at that location. Considering the proportionality relationships, there was no statistical difference between the intersegmental perimeter indices for the two groups. This suggests that despite the animals’ weight variations, the proportions between the left ventricular segments are maintained. Therefore, it is concluded that the data can be used as a standard of comparison for cardiac geometric assessments, as well as a basis for the development of therapeutic measures in the context of adverse cardiac remodeling.

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Section: Discussionmentioning

confidence: 99%

“…Although advanced in medicine, the anatomical study of the geometry of the cardiac chambers is incipient in veterinary medicine; despite the contribution it can offer to the development and improvement of therapeutic protocols, such as surgical techniques, cardiac medical devices and pharmacological therapies [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Morphogeometric Evaluation of the Left Ventricle and Left Atrioventricular Ring in Dogs: A Computerized Anatomical Study

Cardoso

Brandão

Juliani

et al. 2023

Animals

View full text Add to dashboard Cite

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“…The long-term result in this group of patients is not satisfactory due to high rates of mortality. Thus, in an attempt to benefit a greater number of patients, a series of alternative surgical procedures have been proposed including cardiomyopathy, partial left ventriculectomy, surgical correction of mitral valve regurgitation, biventricular heart pacing and myocardial revascularization either as an isolated procedure or associated to ventricular repair [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

<![CDATA[<B>End stage cardiomyopathy and secondary mitral insufficiency</B>: <B>surgical alternative with prostesis implant and left ventricular remodelling</B>]]>

Breda¹,

Palma²,

Teles³

et al. 2006

Braz. j. cardiovasc. surg.

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Objective: To present a new surgical approach that consists of the implantation of a mitral prosthesis smaller than the annulus with traction of the papillary muscles to reduce the sphericity of the left ventricle. Method: Between December 1995 and September 2005, 116 heart disease patients were operated, all of whom were at end-stage despite of full medication. The patients were analysed according to clinical criteria, echocardiographic findings and morphology of the left ventricle. Results: Hospital mortality was 16.3% (19/116) and midterm follow-up (38 ± 16 months) showed evidence of improvement in the clinical status and some echocardiographic parameters, in particular reduction of the sphericity of the left ventricle. Conclusion: This technique, despite of the high mortality rate, offers a promising therapeutic alternative for the treatment of patients in refractory heart failure with cardiomyopathy associated to moderate or severe secondary mitral regurgitation. Descriptors: Congestive heart failure. Dilated cardiomyopathy. Mitral valve insufficiency. Resumo Objetivo: Analisar o resultado de uma alternativa operatória que envolve a correção da regurgitação mitral pelo implante de uma prótese de diâmetro menor do que o anel 284 BREDA, JR ET AL-End stage cardiomyopathy and secondary mitral insufficiency: surgical alternative with prostesis implant and left ventricular remodeling

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