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[Successful angioplasty of a coronary stenosis followed angiographically for 9 years].

A short 80% peripheral stenosis of the anterior interventricular branch which remained unchanged for nine years was successfully dilated by transluminal balloon coronary angioplasty using long-wire technique with angiographically demonstrated reduction of the stenosis to 30%. The patient has since been without symptoms, even on severe physical exertion. It has previously been thought that increasing hardening of the atheroma of a long-standing stenosis prevented successful lasting dilatation.