Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
1.
Chinese Journal of Lung Cancer ; (12): 668-672, 2021.
Article in Chinese | WPRIM | ID: wpr-922239

ABSTRACT

Immune checkpoint inhibitors (ICIs) is a negative regulatory factor antibody, which activates T cells to play an anti-tumor effect in immunotherapy, and can also cause immune-related adverse responses, thereby inducing a series of immune related adverse events (irAEs). Among these irAEs, although the incidence of ICIs-related myocarditis is very low, the fatality rate is significantly higher than other adverse reactions, close to 50%. Clinicians should be vigilant when applying ICIs, but the pathogenesis of ICIs-related myocarditis is still unclear. This article combines the recent research results of ICIs to summarize the mechanism and clinical manifestations of ICIs-related myocarditis, so as to improve clinicians' understanding of the adverse reactions.
.


Subject(s)
Humans , Biomedical Research/trends , Cardiotoxicity/physiopathology , Immune Checkpoint Inhibitors/therapeutic use , Immunotherapy/adverse effects , Myocarditis/physiopathology , Neoplasms/drug therapy
2.
Arq. bras. cardiol ; 111(5): 721-728, Nov. 2018. tab, graf
Article in English | LILACS | ID: biblio-973792

ABSTRACT

Abstract Background: Chemotherapy with doxorubicin and cyclophosphamide, although efficient for treating breast cancer, is associated with cardiovascular complications. Recent studies seek to identify methods that can early detect cardiological and vascular changes as a strategy to decrease the incidence of cardiovascular comorbidities. Objective: To evaluate the role of arterial stiffness measurement in the monitoring of doxorubicin and cyclophosphamide-induced cardiotoxicity in breast cancer patients. Methods: Prospective longitudinal study in 24 breast cancer patients undergoing treatment with doxorubicin and cyclophosphamide. Patients underwent an indirect evaluation of arterial stiffness through non-invasive measurement of hemodynamic parameters such as pulse wave velocity with the Mobil-O-Graph® 24H PWA device at three different times of the chemotherapy treatment (pre-chemotherapy, after the first and the fourth cycle). The left ventricular ejection fraction was also evaluated by Doppler echocardiography (pre-chemotherapy and after the fourth chemotherapy cycle). Data were considered significant when p ≤ 0.05. Results: Patients had a mean age of 52.33 ± 8.85 years and body mass index of 31 ± 5.87 kg/m2. There was no significant difference between the hemodynamic parameters evaluated by the oscillometric method or in the left ventricular ejection fraction in the different evaluated periods. Conclusion: Evaluations of arterial stiffness by oscillometry and measurement of left ventricular ejection fraction by Doppler echocardiography showed equivalence in the values found, suggesting that the evaluation method of arterial stiffness studied could be used as a marker for cardiovascular adverse events associated with doxorrubicin-based chemotherapy drugs.


Resumo Fundamento: O tratamento quimioterápico com doxorrubicina e ciclofosfamida, apesar de eficiente no combate ao câncer de mama, está associado a complicações cardiovasculares. Trabalhos recentes identificam métodos que possam detectar alterações cardiológicas e vasculares precocemente, visando a uma estratégia para diminuição na incidência de comorbidades cardiovasculares. Objetivo: Avaliar o papel da medida da rigidez arterial no acompanhamento da ocorrência de eventos adversos cardiovasculares induzidos por doxorrubicina e ciclofosfamida em pacientes com câncer de mama. Métodos: Estudo longitudinal prospectivo realizado com 24 pacientes com câncer de mama em tratamento com doxorrubicina e ciclofosfamida. As pacientes foram submetidas à avaliação indireta da rigidez arterial, por mensuração não invasiva de parâmetros hemodinâmicos, como a velocidade de onda de pulso, pelo equipamento Mobil-O-Graph® 24H PWA em três diferentes momentos do tratamento quimioterápico (pré-quimioterapia, após o primeiro e após o quarto ciclos). Foi avaliada também a fração de ejeção do ventrículo esquerdo pelo ecoDopplercardiograma (pré-quimioterapia e após o quarto ciclo quimioterápico). Os valores de p ≤ 0,05 foram considerados significativos. Resultados: As pacientes apresentaram média de idade de 52,33 ± 8,85 anos e índice de massa corporal de 31 ± 5,87 kg/m2. Não houve diferença significativa entre os parâmetros hemodinâmicos avaliados pelo método oscilométrico ou na fração de ejeção do ventrículo esquerdo, nos diferentes períodos avaliados. Conclusão: As avaliações de rigidez arterial por oscilometria e medida da fração de ejeção do ventrículo esquerdo por ecoDopplercardiograma mostraram equivalência nos valores encontrados, sugerindo que o método de avaliação da rigidez arterial estudado possa ser utilizado como mais um marcador para eventos adversos cardiovasculares associados aos medicamentos quimioterápicos baseados em doxorrubicina.


Subject(s)
Humans , Female , Adult , Middle Aged , Cardiovascular Diseases/chemically induced , Doxorubicin/adverse effects , Anthracyclines/adverse effects , Cyclophosphamide/adverse effects , Vascular Stiffness , Antineoplastic Agents/adverse effects , Breast Neoplasms/drug therapy , Cardiovascular Diseases/prevention & control , Echocardiography, Doppler , Doxorubicin/therapeutic use , Doxorubicin/pharmacology , Pilot Projects , Longitudinal Studies , Ventricular Function, Left/drug effects , Anthracyclines/therapeutic use , Anthracyclines/pharmacology , Cyclophosphamide/therapeutic use , Cyclophosphamide/pharmacology , Cardiotoxicity/physiopathology , Antineoplastic Agents/therapeutic use , Antineoplastic Agents/pharmacology
3.
Arq. bras. cardiol ; 105(3): 228-234, Sept. 2015. tab, ilus
Article in English | LILACS | ID: lil-761502

ABSTRACT

Background:Chemotherapy with anthracyclines and trastuzumab can cause cardiotoxicity. Alteration of cardiac adrenergic function assessed by metaiodobenzylguanidine labeled with iodine-123 (123I-mIBG) seems to precede the drop in left ventricular ejection fraction.Objective:To evaluate and to compare the presence of cardiovascular abnormalities among patients with breast cancer undergoing chemotherapy with anthracyclines and trastuzumab, and only with anthracycline.Methods:Patients with breast cancer were analyzed clinical, laboratory, electrocardiographic and echocardiographic and cardiac sympathetic activity. In scintigraphic images, the ratio of 123I-mIBG uptake between the heart and mediastinum, and the washout rate were calculated. The variables were compared between patients who received anthracyclines and trastuzumab (Group 1) and only anthracyclines (Group 2).Results:Twenty patients, with mean age 57 ± 14 years, were studied. The mean left ventricular ejection fraction by echocardiography was 67.8 ± 4.0%. Mean washout rate was 28.39 ± 9.23% and the ratio of 123I-mIBG uptake between the heart and mediastinum was 2.07 ± 0.28. Of the patients, 82% showed an increased in washout rate, and the ratio of 123I-mIBG uptake between the heart and mediastinum decreased in 25%. Concerning the groups, the mean washout rate of Group 1 was 32.68 ± 9.30% and of Group 2 was 24.56 ± 7.72% (p = 0,06). The ratio of 123I-mIBG uptake between the heart and mediastinum was normal in all patients in Group 2, however, the Group 1, showed 50% the ratio of 123I-mIBG uptake between the heart and mediastinum ≤ 1.8 (p = 0.02).Conclusion:In women with breast cancer undergoing chemotherapy, assessment of cardiac sympathetic activity with 123I-mIBG appears to be an early marker of cardiotoxicity. The combination of chemotherapy showed higher risk of cardiac adrenergic hyperactivity.


Fundamento:A quimioterapia com antracíclicos e trastuzumabe pode causar cardiotoxicidade. A alteração da função adrenérgica cardíaca, avaliada pela metaiodobenzilguanidina marcada com iodo-123 (123I-mIBG), parece preceder a queda da fração de ejeção do ventrículo esquerdo.Objetivo:Avaliar e comparar a presença de alterações cardiovasculares entre pacientes com câncer de mama submetidas à quimioterapia com antracíclicos e trastuzumabe e apenas a antracíclico.Métodos:Foram analisadas variáveis clínicas, laboratoriais, eletro e ecocardiográficas, além de atividade simpática cardíaca. Nas imagens cintilográficas, foram calculadas a relação da captação do 123I-mIBG entre o coração e o mediastino, e a taxa de clareamento. As variáveis foram comparadas entre os pacientes que receberam antracíclicos e trastuzumabe (Grupo 1) e apenas antracíclicos (Grupo 2).Resultados:Vinte pacientes, com idade média 57 ± 14 anos, participaram deste estudo. A fração de ejeção do ventrículo esquerdo média pelo ecocardiograma foi 67,8 ± 4,0%. A taxa de clareamento média foi 28,39 ± 9,23%, e a relação da captação do 123I-mIBG entre o coração e o mediastino foi de 2,07 ± 0,28. Dentre as pacientes, 82% mostraram taxa de clareamento aumentada e 25%, uma relação da captação do 123I-mIBG entre o coração e o mediastino diminuída. Em relação aos grupos, a média da taxa de clareamento no Grupo 1 foi de 32,68 ± 9,30% e, no Grupo 2, de 24,56 ± 7,72% (p = 0,06). A relação da captação do 123I-mIBG entre o coração e o mediastino foi normal em todas as pacientes do Grupo 2, entretanto, no Grupo 1, 50% mostraram relação da captação do 123I-mIBG entre o coração e o mediastino ≤ 1,8 (p = 0,02).Conclusão:Em mulheres com câncer de mama submetidas à quimioterapia, a avaliação da atividade simpática cardíaca com 123I-mIBG pode ser um marcador precoce de cardiotoxicidade. A associação de quimioterápicos proporcionou maior risco de hiperatividade adrenérgica cardíaca.


Subject(s)
Adult , Aged , Female , Humans , Middle Aged , Anthracyclines/adverse effects , Antineoplastic Agents/adverse effects , Heart Diseases/chemically induced , Heart/drug effects , Trastuzumab/adverse effects , Age Factors , Breast Neoplasms/drug therapy , Cardiotoxicity/physiopathology , Echocardiography, Doppler , Heart Diseases/physiopathology , Heart Diseases , Heart Rate/drug effects , Heart , Radiopharmaceuticals , Risk Assessment , Statistics, Nonparametric , Stroke Volume/drug effects , Sympathetic Nervous System/drug effects
SELECTION OF CITATIONS
SEARCH DETAIL