Clinical trials

Perioperative bleeding requiring blood transfusion is common during cardiovascular surgery, especially in procedures requiring cardiopulmonary bypass. Adenosine diphosphate (ADP) plays a fundamental role in platelet function. Several studies have shown that some patients not receiving antiplatelet therapy undergoing cardiovascular surgery have decreased platelet ADP receptor activity; the prevalence of this condition can be as high as 36%. Furthermore, extracorporeal circulation itself has been shown to cause a reduction in platelet function. Platelet dysfunction due to reduced platelet receptor activity after cardiac surgery is potentially a common cause of bleeding, perioperative blood transfusion, and surgical reexploration in patients not receiving antiplatelet agents. However, these studies are conducted with few patients and present some contradictory results, so the evidence is still scarce. The study hypothesis is that preoperative platelet dysfunction for ADP measured by TEG® Platelet Mapping™ is associated with a higher incidence of moderate-severe bleeding after CPB in patients undergoing cardiovascular surgery.

The CARTIER study is a randomized, multicenter, open-label clinical trial comparing, in elderly patients with cancer under anti-tumoral treatment, two different cardiotoxicity prevention strategies: primary (intensive cardiovascular monitoring focused on prevention and early diagnosis and treatment of cardiotoxicity based in cardio-onco-hematology teams involved in cancer patient care) vs. secondary (current clinical practice where intensive cardiovascular monitoring is not routinely performed and cardiotoxicity patient care is based on the onco-hematologist criteria). The primary endpoint is to determine whether this primary prevention englobing cardiovascular monitoring plus intensive multidisciplinary management is superior to the current clinical practice in reducing all cause mortality. Other secondary objectives of the study are to analyze the impact of this intensive cardiovascular monitoring strategy on the incidence of cardiovascular mortality, oncological mortality, hospitalization and/or urgent care due to cardiovascular complications, hospitalization and/or urgent oncological care due to cancer complications, tumor progression and cost-effectiveness analysis. A total of 514 patients ≥ 65 years old diagnosed with any of the following onco-hematological cancers, colon, breast, lymphoma, chronic lymphoma leukemia, chronic myeloid leukemia or myeloma, undergoing standardized anti-tumoral treatment, will be recruited. The incidence of primary and secondary outcomes will be measured at 2 and 5 years