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Early detection of doxorubicin cardiotoxicity: interest of Doppler echocardiographic analysis of left ventricular filling dynamics.

Abstract：

:Doxorubicin (Adriamycin) is an effective anticancer agent but its therapeutic value is limited by its myocardial cardiotoxicity. To improve early detection of doxorubicin cardiotoxicity, studies were performed in patients with long-term doxorubicin treatment using pulsed Doppler echocardiography to assess the changes in left ventricular (LV) diastolic filling dynamics. M-mode echocardiographic systolic parameters and Doppler transmitral flow velocities were analyzed in two groups of patients. In group A (45 patients, mean age 45 +/- 13 years), the results were compared with those of a control group of 35 normal subjects matched for age. In group B (19 patients, mean age 44 +/- 12 years), the pretreatment results were prospectively compared with those obtained during treatment protocol. The patients received a cumulative dosage of 253 +/- 125 mg/m2 of doxorubicin for group A and 240 +/- 135 mg/m2 for group B. After doxorubicin treatment, in the two groups there were no significant changes in LV dimensions, shortening fraction, and mean velocity of circumferential fiber shortening (VCF). In contrast, Doppler echocardiographic parameters of diastolic function were significantly modified after doxorubicin in the two groups:isovolumic relaxation period was prolonged by 32% in group A (p less than 0.001) and by 22% in group B (p less than 0.005).2+ The early peak flow velocity was reduced by 18% in group A (p less 0.002) and by 13% in group B (p less than 0.04), and the ratio early peak flow velocity/atrial peak flow velocity also decreased significantly, by 23% in group A (p less than 0.001) and by 20% in group B (p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Am Heart J

journal_title

American heart journal

authors

Marchandise B,Schroeder E,Bosly A,Doyen C,Weynants P,Kremer R,Pouleur H

doi

10.1016/0002-8703(89)90077-x

subject

Has Abstract

pub_date

1989-07-01 00:00:00

pages

92-8

issue

1

eissn

0002-8703

issn

1097-6744

pii

0002-8703(89)90077-X

journal_volume

118

pub_type

杂志文章

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