Biomaterial Database

Balloon mitral valvotomy with a single catheter: a comparison between bifoil/trefoil and the Inoue balloon. 1993

J J Patel, and A S Mitha, and S Chetty, and J S Hung

Cardiology Department, University of Natal/Wentworth Hospital, Durban, South Africa.

Results of percutaneous mitral valvotomy were compared in two groups undergoing the procedure at our institution. Group I: 100 patients having had percutaneous valvotomy with the Schneider-Medintag bifoil (2 x 19 mm) or trefoil (3 x 15 mm or 3 x 12 mm) catheters, and group II; 150 patients in whom the procedure was performed with the Inoue balloon (24-30 mm). Baseline clinical (age, gender, NYHA class and echo score) and haemodynamic variables were similar in both groups. Haemodynamic improvement occurred in both groups. Although the reduction in left atrial pressure did not differ significantly between the two groups, the increase in mitral valve area was significantly (P < 0.001) higher for group I (0.8 +/- 0.2 to 1.9 +/- 0.7 and 0.8 +/- 0.3 to 1.6 +/- 0.3 cm2 respectively for mitral area, and 22 +/- 6 to 13 +/- 5 and 21 +/- 6 to 13 +/- 5 mmHg respectively for mean left atrial pressure). The increase in cardiac output was statistically significant in group I (3.2 +/- 0.7 to 4.0 +/- 0.9 l.min-1, P < 0.05) but not in group II (3.5 +/- 2.0 to 3.7 +/- 0.9 l.min-1, ns). Inter-atrial shunting immediately after valvotomy was recorded in 19% of group I patients compared with 6% in group II (P < 0.001). The overall incidence of significant mitral regurgitation (3+ or 4+) was similar in both groups (5% and 4% respectively). However, when the stepwise dilatation technique was employed in group II, the incidence had dropped to 2.1%.(ABSTRACT TRUNCATED AT 250 WORDS)

UI	MeSH Term	Description	Entries
D008297	Male		Males
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
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
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
D004867	Equipment Design	Methods and patterns of fabricating machines and related hardware.	Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
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