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['hfpef', 'cardio']
in patients with hfpef and inadequate response of heart rate to exertion (chronotropic incompetence), implantation of a pacemaker to enhance exercise heart rate did not improve exercise capacity, symptoms, or exercise cardiac output. #acc23 #wccardio
JAMA is an international peer-reviewed general medical journal published weekly online and in print, and a member of the @JAMANetwork family of journals.