hi well come to hcm.
it sees your mother has developed restenosis
of mitral valve,which has lead to
Rt sided heart failure
due to back flow pressure.Its better you consult cardiothoracic
surgeon and find out wheather Baloon Valvoplaty is possible other wise drugs
at times B-blockers are being use for conservative treatment,You
may use even ace inhibitors to improve her GC.Thanks