KENNETH M. BOROW, M.D.; I. CRAIG HENDERSON, M.D.; ALEXANDER NEUMAN; STEVEN COLAN, M.D.; STAFFORD GRADY, M.D.; STEVEN PAPISH, M.D.; ALLEN GOORIN, M.D.
BOROW K., HENDERSON I., NEUMAN A., COLAN S., GRADY S., PAPISH S., GOORIN A.; Assessment of Left Ventricular Contractility in Patients Receiving Doxorubicin. Ann Intern Med. 1983;99:750-756. doi: 10.7326/0003-4819-99-6-750
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Published: Ann Intern Med. 1983;99(6):750-756.
The usual indices of left ventricular systolic performance have been incapable of accurately recognizing early myocardial impairment in many patients treated with doxorubicin. Recently, several new load-independent, highly sensitive indices of left ventricular contractility have been developed including the slope value of the endsystolic pressure (Pes)-dimension (Des) relation and the position of the left ventricular end-systolic wall stress (σ es)-percent fractional shortening (%ΔD) relation. We used these indices to study 46 patients receiving either low dose or high dose doxorubicin. Results were compared with data from 30 healthy subjects. Resting %ΔD failed to accurately recognize left ventricular dysfunction in 9 of 17 patients with low normal values. These patients had reduced afterload, as measured by σes, permitting normal extent of left ventricular fiber shortening despite impaired contractility as quantified by diminished Pes-Des slope values. There was 98% concordance between the relative position of the σes%ΔD relation and the slope value of the Pes-Des, relation. These indices offer an improved means of recognizing and quantitating impaired contractility in patients treated with doxorubicin.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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