SummaryPercutaneous balloon mitral valvoplasty (PBMV) has become the treatment of choice for severe pliable rheumatic mitral stenosis. The multi-track system is a recent variation of the double-balloon technique and is easier owing to the use of a monorail balloon and a simple, single-guidewire approach. In the present study, we used the double-coil Inoue metal wire with a multi-track balloon instead of the conventional multi-track wire. We studied 62 consecutive patients (55 females) with significant symptomatic rheumatic mitral valve stenosis who underwent multi-track PBMV. Patients were randomized into 2 groups: the first group included 32 patients treated with the novel multi-track technique using the double-coil Inoue metal wire, and the second group included 30 patients treated with the conventional multi-track technique using a balloon endhole catheter and multi-track 0.035 inch stiff wire. None of the patients had cardiac tamponade, systemic thromboembolism, or any groin complications. No statistically significant differences were found between the 2 groups regarding any of the studied variables. There were no in-hospital deaths or complications necessitating emergent cardiac surgery in either group. In conclusion, this new technique with the double-coil Inoue metal wire achieves the double benefit of being as safe as (and indeed easier than) the conventional technique, and it utilizes fewer materials, making the multi-track system more cost-effective. (Int Heart J 2013; 54: 196-201) Key words: Inoue, Endhole, Rheumatic, Stenosis R heumatic mitral valve stenosis remains an important public health concern in developed countries. 1) When there is favorable mitral valve anatomy, percutaneous balloon mitral valvoplasty (PBMV) has become the treatment of choice for severe pliable rheumatic mitral stenosis.2) With increasing experience and better selection of patients, the immediate results of the procedure have improved, and the rate of complications has declined.2) Several randomized trials reported similar hemodynamic results with PBMV and surgical commissurotomy.1, [3][4][5][6] There are currently 2 main techniques for PBMV: balloon commissurotomy and metallic commissurotomy. In balloon commissurotomy, the 2 main modalities are the double-balloon technique and the Inoue technique. The double-balloon technique is effective but demanding and carries a risk of left ventricular perforation by the guidewires or the tips of the balloons.
7)The multi-track operator-friendly system is a recent variation of the double-balloon technique. This system has the advantages of the double-balloon technique and is also an easier procedure because of the use of a monorail balloon and a simple, single-guidewire approach. 7,8) The procedure time is similar to that of single-balloon techniques while achieving consistently higher mitral valve area postdilatation.7) The mismatch between the round shape of a single balloon and the oval mitral valve orifice probably explains the better results that have been reported with double...