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Mitral Valve Management During Septal Myectomy

2019-04-12 11:34:24 | BioPortfolio

Summary

Objective of the study: to evaluate whether alfieri technique improves clinical and hemodynamic results compared to transaortic mitral valve secondary cord cutting in patients scheduled to septal myectomy for severely symptomatic hypertrophic obstructive cardiomyopathy.

Description

There is pilot prospective randomised study comparing immediate and early results of additional subvalvular mitral apparatus intervention versus additional alfieri stich in patients scheduled to septal myectomy for symptomatic obstructive cardiomyopathy.

Patients with proven hypertrophic cardiomyopathy and resting left ventricle outflow tract obstruction underwent septal myectomy. If patients were suitable for both surgical techniques, they were randomized to alfieri stich or secondary cord cutting. All surgeons were experienced at least 50 related procedures.

Study Design

Conditions

Hypertrophic Cardiomyopathy

Intervention

Septal myectomy, alfieri stich, Subvalvular intervention

Location

Novosibirsk State Research Institute of Circulation Pathology
Novosibirsk
Russian Federation
630055

Status

Completed

Source

Meshalkin Research Institute of Pathology of Circulation

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-04-12T11:34:24-0400

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Medical and Biotech [MESH] Definitions

An autosomal dominant inherited form of HYPERTROPHIC CARDIOMYOPATHY. It results from any of more than 50 mutations involving genes encoding contractile proteins such as VENTRICULAR MYOSINS; cardiac TROPONIN T; ALPHA-TROPOMYOSIN.

A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).

A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).

An autosomal recessively inherited glycogen storage disease caused by GLUCAN 1,4-ALPHA-GLUCOSIDASE deficiency. Large amounts of GLYCOGEN accumulate in the LYSOSOMES of skeletal muscle (MUSCLE, SKELETAL); HEART; LIVER; SPINAL CORD; and BRAIN. Three forms have been described: infantile, childhood, and adult. The infantile form is fatal in infancy and presents with hypotonia and a hypertrophic cardiomyopathy (CARDIOMYOPATHY, HYPERTROPHIC). The childhood form usually presents in the second year of life with proximal weakness and respiratory symptoms. The adult form consists of a slowly progressive proximal myopathy. (From Muscle Nerve 1995;3:S61-9; Menkes, Textbook of Child Neurology, 5th ed, pp73-4)

Isoforms of MYOSIN TYPE II, specifically found in the ventricular muscle of the HEART. Defects in the genes encoding ventricular myosins result in FAMILIAL HYPERTROPHIC CARDIOMYOPATHY.

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