Publication: Kardiyotoksik Etkili Kemoterapötik Ajanların Vasküler Sertlik Üzerindeki Etkilerinin Osilometrik Olarak Değerlendirilmesi
Abstract
Amaç: Birçok klinik çalışma göstermiştir ki arteryal sertlikteki değişim gelişebilecek kardiyovasküler olayların erken dönem belirtecidir. Biz de çalışmamızda kardiyotoksik etkili kemoterapötik ajanlar ile tedavi edilen hastalarda tedaviye bağlı kardiyovasküler etkileri saptamak amacıyla arteryal sertlik parametrelerini değerlendirmeyi amaçladık. Hastalar ve Yöntem: Çalışmamız prospektif bir vaka-kontrol çalışmasıdır. 30'u yeni tanı almış kanser hastası, 40'ı hasta grubuna benzer yaş ve cinsiyet özelliklerine sahip kontrol grubu olmak üzere çalışmamıza 18-50 yaş arası toplam 70 gönüllü dahil edilmiştir. Hipertansiyon, diyabet, bilinen kardiyak hastalıklar, obezite, sigara ve alkolizm dışlama kriterleri olarak belirlenmiştir. Bütün gönüllülerin başlangıç osilometrik arteryal sertlik parametreleri ve ekokardiyografik parametreleri ölçülmüştür. Bütün ölçümler hasta grubunda kemoterapi protokolü tamamlandıktan bir ay sonra tekrarlanmıştır. Bulgular: Kemoterapi öncesi arteryal sertlik değerleri hasta grubu ile kontrol grubunda benzerdi. Kemoterapi sonrası ise hasta grubunda osilometrik nabız dalga hızı anlamlı düzeyde değişim gösterdi (p<0.001). Ek olarak tedavi sonrasında sistolik kan basıncı ve santral sistolik kan basıncı değerleri de artarken, sol ventrikül ejeksiyon fraksiyonu değeri düştü (p değerleri sırası ile 0.033, 0.033 ve 0.002). Kontrol grubu ile karşılaştırıldığında kemoterapi sonrası augmentasyon indeksi düzeyinde de anlamlı derecede değişim saptandı (p=0.013). Ancak ekokardiyografik arteryal sertlik parametreleri açısından gruplar arasında anlamlı fark gözlenmedi. Sonuç: Kardiyotoksik etkili kemoterapötik ajanlar ile tedavi edilen hastalarda kardiyovasküler olayların erken belirteci olan osilometrik nabız dalga hızı ve augmentasyon indeksi değerlerinde tedavi sonrası anlamlı derecede bozulma saptanmıştır.
ABSTRACT Objective: It was shown in many clinical trials that arterial stiffness is an early predictor of cardiovascular events. Since cancer patients who have been treated with cardiotoxic chemotherapeutic agents experience an increased risk of cardiovascular events, we aimed to evaluate the arterial stiffness in cancer patients taking cardiotoxic chemotherapeutic agents. Patients and Method: Our study was a prospective, case-control study involving 70 participants. 30 of the participants were newly diagnosed cancer patients, and 40 were age- and sex-matched healthy individuals. Their ages were between 18 and 50 years. Hypertension, diabetes mellitus, known cardiac diseases, obesity, smoking, and alcoholism were the exclusion criteria. We measured baseline oscillometric arterial stiffness parameters and transthoracic echocardiographic parameters of all participiants. For cancer patients, the measurements were repeated one month after completion of the chemotherapy protocol. Results: Before chemotherapy, cancer patients had similar values for arterial stiffness as the control group. However, oscillometric pulse wave velocity parameter differed significantly in cancer patients after chemotherapy (p<0.001). In addition, systolic blood pressure and central systolic blood pressure increased, but left ventricular ejection fraction decreased significantly in cancer patients after chemotherapy (p values 0.033, 0.033, and 0.002 respectively). Augmentation index increased in cancer patients after chemotherapy as compared to the controls (p=0.013). On the other hand, echocardiographic stiffness parameters were not different in cancer patients before and after completion of the chemotherapy protocol. Conclusion: After administration of cardiotoxic chemotherapeutic agents, we observed significant deteriorations at oscillometric pulse wave velocity and augmentation index parameters which are early predictors of cardiovascular events.
ABSTRACT Objective: It was shown in many clinical trials that arterial stiffness is an early predictor of cardiovascular events. Since cancer patients who have been treated with cardiotoxic chemotherapeutic agents experience an increased risk of cardiovascular events, we aimed to evaluate the arterial stiffness in cancer patients taking cardiotoxic chemotherapeutic agents. Patients and Method: Our study was a prospective, case-control study involving 70 participants. 30 of the participants were newly diagnosed cancer patients, and 40 were age- and sex-matched healthy individuals. Their ages were between 18 and 50 years. Hypertension, diabetes mellitus, known cardiac diseases, obesity, smoking, and alcoholism were the exclusion criteria. We measured baseline oscillometric arterial stiffness parameters and transthoracic echocardiographic parameters of all participiants. For cancer patients, the measurements were repeated one month after completion of the chemotherapy protocol. Results: Before chemotherapy, cancer patients had similar values for arterial stiffness as the control group. However, oscillometric pulse wave velocity parameter differed significantly in cancer patients after chemotherapy (p<0.001). In addition, systolic blood pressure and central systolic blood pressure increased, but left ventricular ejection fraction decreased significantly in cancer patients after chemotherapy (p values 0.033, 0.033, and 0.002 respectively). Augmentation index increased in cancer patients after chemotherapy as compared to the controls (p=0.013). On the other hand, echocardiographic stiffness parameters were not different in cancer patients before and after completion of the chemotherapy protocol. Conclusion: After administration of cardiotoxic chemotherapeutic agents, we observed significant deteriorations at oscillometric pulse wave velocity and augmentation index parameters which are early predictors of cardiovascular events.
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