Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2005-10-19
pubmed:abstractText
The authors conducted an 8-year prospective non-randomised study to determine whether dexrazoxane (ICRF-187) would reduce late anthracycline-induced cardiotoxicity in patients treated in childhood for haematological malignancy. The authors examined prospectively 75 patients (40 male/35 female) aged 2-17 years (median 6.5 years) at the time of diagnosis. The cardioprotection was given to 53 patients (26 male/17 female) and the standard protocol was used in 22 patients (14 male/8 female). The prospective echocardiographic evaluation was done before and after the chemotherapy and every year during the follow-up period. Dynamic stress echocardiography (DSE) was assessed in the final year. The clinical cardiotoxicity was not diagnosed. Higher cumulative doses of anthracycline were given in the dexrazoxane group (234+/-58 mg/m(2), median 240 mg/m(2) versus 203+/-86 mg/m(2), median 210 mg/m(2), P <0.04) and a significantly higher percentage of patients received cumulative doses >240 mg/m(2) of anthracycline ( P <0.05). During the follow-up period, the fractional shortening (FS) declined in the no-dexrazoxane group only in the 8th year and was significantly lower compared to the dexrazoxane group ( P <0.05). The pathological decrease in FS was present in 24% of patients; 41% in the no-dexrazoxane and 17% in the dexrazoxane groups, respectively ( P <0.05). DSE demonstrated lower rest EF and cardiac index (CI) in the no-dexrazoxane group ( P <0.05); however, neither the response of EF and CI to the stress echocardiography nor the exercise tolerance significantly differed between sub-groups. A higher number of patients in the dexrazoxane group had very good exercise tolerance (ET) >3 Watts/kg ( P <0.05) and a lower number responded with a decreased ET <2 Watts/kg ( P <0.05) compared to the no-dexrazoxane group. CONCLUSION: Dexrazoxane seems to reduce the risk of late subclinical cardiotoxicity. Dexrazoxane-treated patients revealed better exercise tolerance; however the haemodynamic response to the stress was no different in both sub-groups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0340-6199
pubmed:author
pubmed:issnType
Print
pubmed:volume
164
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
678-84
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:16044276-Adolescent, pubmed-meshheading:16044276-Anthracyclines, pubmed-meshheading:16044276-Antineoplastic Agents, pubmed-meshheading:16044276-Blood Pressure, pubmed-meshheading:16044276-Body Mass Index, pubmed-meshheading:16044276-Cardiovascular Agents, pubmed-meshheading:16044276-Child, pubmed-meshheading:16044276-Child, Preschool, pubmed-meshheading:16044276-Czech Republic, pubmed-meshheading:16044276-Daunorubicin, pubmed-meshheading:16044276-Dose-Response Relationship, Drug, pubmed-meshheading:16044276-Doxorubicin, pubmed-meshheading:16044276-Echocardiography, Stress, pubmed-meshheading:16044276-Female, pubmed-meshheading:16044276-Follow-Up Studies, pubmed-meshheading:16044276-Heart, pubmed-meshheading:16044276-Heart Rate, pubmed-meshheading:16044276-Humans, pubmed-meshheading:16044276-Infant, pubmed-meshheading:16044276-Male, pubmed-meshheading:16044276-Neoplasms, pubmed-meshheading:16044276-Prospective Studies, pubmed-meshheading:16044276-Razoxane, pubmed-meshheading:16044276-Time Factors, pubmed-meshheading:16044276-Treatment Outcome
pubmed:year
2005
pubmed:articleTitle
Long-term serial echocardiographic examination of late anthracycline cardiotoxicity and its prevention by dexrazoxane in paediatric patients.
pubmed:affiliation
Department of Cardiology, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic. lelbl@fnbrno.cz
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, Non-U.S. Gov't, Multicenter Study