title: Routine cardiac catheterisation before valvular surgery?
mesh_terms: D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D003327:Coronary Disease / Q000175:diagnosis / Q000601:surgery; D006351:Heart Valves / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D011300:Preoperative Care