(Circulation. 1999;99:793-799.)
© 1999 American Heart Association, Inc.
Clinical Investigation and Reports |
Percutaneous Mechanical Mitral Commissurotomy With a Newly Designed Metallic Valvulotome
Immediate Results of the Initial Experience in 153 Patients
From Charles Nicolle Hospital, Departments of Cardiology (A.C., H.E., R.K., G.D., C.T., S.J., G.P., B.L.) and Biostatistics (J.B.), University of Rouen, France; Apollo Hospital, Hyderabad, India (P.C.R.); G.B. Pant Hospital, New Delhi, India (R.A.); National Heart Institute (A.I.) and Al-Azhar University, Cairo, Egypt (M.E.-S.); and the Institute of Cardiology, Ahmedabad, India (S.D.).
Correspondence to Alain Cribier, MD, Department of Cardiology, Hôpital Charles Nicolle, 1 rue de Germont, 76000 Rouen, France. E-mail alain.cribier{at}chu-rouen.fr
Background—Percutaneous balloon valvotomy has become a common treatment of mitral stenosis, but the cost of the procedure remains a limitation in countries with restricted financial resources, leading to a frequent reuse of the disposable catheters. To overcome this limitation, a reusable metallic valvotomy device has been developed with the goals of both improving the mitral valvotomy results and decreasing the cost of the procedure.
Methods and Results—The device consists of a detachable metallic cylinder with 2 articulated bars screwed onto the distal end of a disposable catheter whose proximal end is connected to an activating pliers. By the transseptal route, the device is advanced across the valve over a traction guidewire. Squeezing the pliers opens the bars up to a maximum extent of 40 mm. The clinical experience consisted of 153 patients with a broad spectrum of mitral valve deformities. The procedure was successful in 92% of cases and resulted in a significant increase in mitral valve area, from 0.95±0.2 to 2.16±0.4 cm2. No increase in mitral regurgitation was noted in 80% of cases. Bilateral splitting of the commissures was observed in 87%. Complications were 2 cases of severe mitral regurgitation (1 requiring surgery), 1 pericardial tamponade, and 1 transient cerebrovascular embolic event. In this series, the maximum number of consecutive patients treated with the same device was 35.
Conclusions—The results obtained with this new device are encouraging and at least comparable to those of current balloon techniques. Multiple uses after sterilization should markedly decrease the procedural cost, a major advantage in countries with limited resources and high incidence of mitral stenosis.
Key Words: mitral valve • valvuloplasty • catheters
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