title: Value of treadmill exercise echocardiography in the evaluation of symptomatic hypertrophic cardiomyopathy with latent obstruction. Impact on therapeutic decisions.
abstract: The authors report the case of a 64-year-old patient with hypertrophic cardiomyopathy with latent obstruction. The patient complained of fatigue but the left ventricular outflow gradient at rest was not significant. He underwent exercise echocardiography that was stopped after 3 minutes due to exhaustion. The gradient at peak workload was 150 mmHg accompanied by a fall in arterial pressure. After the patient refused surgery, a double chamber pacemaker was implanted. A month later, exercise echocardiography lasted for 12 minutes and the gradient at peak workload was 60 mmHg. The authors highlight the importance of exercise echocardiography in the evaluation of symptomatic patients with hypertrophic cardiomyopathy without significant left ventricular outflow gradient at rest and the possible therapeutic role of pacing in these patients.
authors.affiliation: Serviço de Cardiologia, Hospital Garcia da Orta, Almada, Portugal.
authors.forename: Ana Rita
authors.initials: AR
authors.lastname: Almeida
authors.forename: Carlos
authors.initials: C
authors.lastname: Cotrim
authors.forename: Luís Brandão
authors.initials: LB
authors.lastname: Alves
authors.forename: Sofia
authors.initials: S
authors.lastname: Almeida
authors.forename: Rita
authors.initials: R
authors.lastname: Miranda
authors.forename: Bruno
authors.initials: B
authors.lastname: Stuart
authors.forename: Manuel
authors.initials: M
authors.lastname: Carrageta
mesh_terms: D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D005080:Exercise Test; D006801:Humans; D008297:Male; D008875:Middle Aged; D014694:Ventricular Outflow Obstruction / Q000150:complications