Biomaterial Database

[Percutaneous mitral valvuloplasty]. 1990

A Vahanian, and P L Michel, and B Cormier

Service de cardiologie du Pr J. Acar, hôpital Tenon, Paris.

Since its introduction as an alternative to surgical commissurotomy, percutaneous mitral valvuloplasty (PMV) has been performed in a large number of patients with mitral valve stenosis. PMV significantly improves valvular function, the final increase in mitral valve area being about 2 sq cm. The quality of the results obtained is principally related to the anatomy of the valve. The overall incidence of complications is low. The mortality rate ranges from 0.5 to 4 p. 100 in severe mitral stenosis. Left-to-right atrial shunting is detected by oximetry in 20 p. 100 of the cases, but it subsequently disappears in two thirds of the patients; late results are only known at medium term. When the initial result is satisfactory functional improvement is the rule and the incidence of restenosis is low. When the initial result is insufficient, or when mitral stenosis develops open heart surgery is usually necessary. The decision to perform PMV should only be made after exclusion of its contraindications: left atrial thrombosis, moderate to severe mitral stenosis. Because of the encouraging results obtained, PMV can be envisaged as first choice treatment of mitral stenosis with flexible cusps. In calcified mitral stenosis the standard treatment is mitral valve replacement, PMV being reserved to some particular cases.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D008943	Mitral Valve	The valve between the left atrium and left ventricle of the heart.	Bicuspid Valve,Bicuspid Valves,Mitral Valves,Valve, Bicuspid,Valve, Mitral,Valves, Bicuspid,Valves, Mitral
D008946	Mitral Valve Stenosis	Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.	Mitral Stenosis,Mitral Stenoses,Mitral Valve Stenoses,Stenoses, Mitral,Stenoses, Mitral Valve,Stenosis, Mitral,Stenosis, Mitral Valve,Valve Stenoses, Mitral,Valve Stenosis, Mitral
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D002404	Catheterization	Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.	Cannulation,Cannulations,Catheterizations
D005260	Female		Females
D006439	Hemodynamics	The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.	Hemodynamic
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000075202	Contraindications	A condition or factor associated with a recipient that makes the use of a drug, procedure, or physical agent improper or inadvisable. Contraindications may be absolute (life threatening) or relative (higher risk of complications in which benefits may outweigh risks).	Contraindications, Physical Agent,Medical Contraindications,Agent Contraindication, Physical,Agent Contraindications, Physical,Contraindication,Contraindication, Medical,Contraindication, Physical Agent,Contraindications, Medical,Medical Contraindication,Physical Agent Contraindication,Physical Agent Contraindications