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  • Title: Clinical and non-invasive assessment of anthracycline cardiotoxicity: perspectives on myocardial protection.
    Author: Mortensen SA, Aabo K, Jonsson T, Baandrup U.
    Journal: Int J Clin Pharmacol Res; 1986; 6(2):137-50. PubMed ID: 3459718.
    Abstract:
    A series of 38 patients with solid tumours (N=29) and haematological malignancies (N=9) and with suspicion of cardiotoxicity (CTX) due to antineoplastic drugs was studied. The series comprised 22 females and 16 males (mean age 52 years). The patients were examined clinically by ECG, chest X-ray and echocardiography. Seventeen patients were classified as having moderate or severe chronic CTX; 16 patients developed either arrhythmias shortly after the administration of chemotherapy (acute CTX) or arrhythmias and/or signs of myocardial dysfunction (without overt congestive heart failure) at a later date, after chemotherapy had been suspended (latent CTX). In 5 cases the suspicion of CTX could not be confirmed. Weak and non-specific symptoms such as unexplained tachycardia or coughing at night should alert the clinician and result in ECG control and further non-invasive cardiological investigations (including radionuclide angiocardiography) before additional anthracycline is administered. Chest X-ray is a very insensitive method with respect to early diagnosis of chronic CTX; in cases of doubt heart catheterization with endomyocardial biopsy should be carried out to obtain a reliable estimate of the extent of morphological damage. As anthracycline CTX may present without prominent clinical symptoms or as latent disease, one should be aware of potential precipitating factors such as volume load (during i.v. chemotherapy), surgical trauma and general anaesthesia and alcohol abuse. Further effects to lessen CTX should be made, using supposed cardio-protective substances in randomized clinical trials. Promising research on coenzyme Q10 and carnitine may usher in a new era in the prevention of anthracycline cardiotoxicity.
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