Article Text

GW24-e3563 Clinical application of min-diameter atria stleel-wire in modified percutaneous ballon mitral valvuloplasty
  1. XiaoPing Wang,
  2. Liao Wei,
  3. Deng Wei,
  4. Wang xiaoping
  1. Department of Cardiology, First Affiliated Hospital of Gannan Medical College


Objectives To evaluate the feasibility, safety and efficacy of the min- diameter half and two convolutionsatria steel-wire that is used in improving percutaneous balloon mitralvalvuloplasy (PBMV)

Methods All patients received warfarin tabella every day for more than 3 months, underwent PBMV with the min-diameter half and two convolutions atria steel-wire and single balloonInoue technique after low dosage urokinase intravenous drip and Low Molecular Heparin injectio hypodermica every day for 5 days to observe the changes of haemodynamics and mitralvalve orifice area after PBMV. Following-up pulmonary arterial pressure inner diameter of left atrium complication as systematic thromboembolism

Results The achievement ratio was 98.9%. After PBMV, mean left atrial pressure (LAPm) and mean mitrial valve pressure gradient (MVPG) decreased from (28.5 ± 3.2) mmHg and (16.8 ± 3.8) mmHg to (10.3 ± 2.1) mmHg (P < 0.05) and (3.4 ± 2.8) mmHg (P < 0.01) respectively; Mitral valve orificearea (MVA) increased from (0.86 ± 0.26) cm2 to (1.67 ± 0.34) cm2 (P < 0.01). 6 months after PBMV Left atrial diameter (LAD) decreased from (65.30 ± 3.4) mm to (46.5 ± 4.3) mm (P > 0.05); Pulmonary pressure (PP) decreased from (63.8 ± 12.3) mmHg to (31.5 ± 12.7) mmHg (p < 0.05). 46 patients of heart function (NYHA) II to heart function I in 52 patients, 8 patients of heart function (NYHA) IIIto heart function II in 11 patients. No systemic thromboembolism occurred during PBMV and following-up.

Conclusions PBMV on patients after sufficient anticoagulation and thrombolysis combine the min- diameter half and two convolutions atria steel-wire that is used in improving single balloon Inoue technique is safe, feasible and effective.

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