Manovre funzionali per la diagnosi delle cardiomiopatie ipertrofiche con e senza ostruzione del tratto di efflusso del ventricolo sinistro.

Translated title of the contribution: Functional maneuvers for the diagnosis of hypertrophic cardiomyopathies with and without left ventricular outflow obstruction

M. Anselmino, F. Orzan, M. Bobbio, V. Fontana, P. Presbitero, G. Carini, G. Defilippi, A. Brusca

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose of the study: to assess the diagnostic value of the commonly adopted haemodynamic criteria for the diagnosis of obstructive and non-obstructive hypertrophic cardiomyopathy. PATIENTS: 16 cases of hypertrophic cardiomyopathy, 7 cases of the non-obstructive form, 16 fixed subaortic stenosis, 8 valvular aortic stenosis, and 7 cases of hypertensive heart disease. METHODS: left and right heart catheterisation, with particular attention to the pressure gradient and to the aortic pulse pressure by means of simultaneous pressure recording from the left ventricle and aorta under basal conditions, after a ventricular premature beat, during the Valsalva manoeuvre, during amyl nitrite inhalation, and isoproterenol administration. RESULTS and CONCLUSION: the Valsalva manoeuvre increases significantly (p <0.001) the pressure gradient, and the aortic pulse pressure in the post-extrasystolic beat decreases significantly (p <0.001) in patients with hypertrophic obstructive cardiomyopathy. This response is significantly different from that of the other 3 disease groups. If the non-obstructive form is defined by strict criteria (i.e. no gradient above 30 mmHg even after provocative manoeuvres), then it cannot be separated from other forms of secondary left ventricular hypertrophy.

Translated title of the contributionFunctional maneuvers for the diagnosis of hypertrophic cardiomyopathies with and without left ventricular outflow obstruction
Original languageItalian
Pages (from-to)297-304
Number of pages8
JournalCardiologia
Volume38
Issue number5
Publication statusPublished - May 1993

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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