Cardiology consultation in oncology practice: a 5-year survey.

Onco-cardiology services are expanding rapidly in Japan. To provide a better service, it is important to consider the needs of oncologists. However, little is known regarding specific needs for which oncologists should consult cardiologists to manage cardiovascular problems of their patients. We analysed cardiology consultations sought by oncologists to evaluate the role of cardiologists in cancer treatment. We retrospectively investigated consecutive 2064 cardiology consultations of cancer patients in the University of Tsukuba Hospital, Tsukuba, Japan, between January 2014 and December 2018. The most common timing of cardiology consultation was before the commencement of cancer treatment (n = 1355; 65.7%), followed by after the commencement of cancer treatment (n = 686; 33.2%). Among the 361 consultations before the administration of anticancer drugs, 235 (65.1%) were for anthracycline-based regimens. There were 506 (24.5%) consultations for the management of cardiovascular emergencies developing after the commencement of cancer treatment; venous thromboembolism was the most frequent (n = 125; 24.7%), followed by atrial fibrillation (n = 110; 21.7%) and heart failure (n = 74; 14.6%). There were marked differences in the types of cardiovascular emergencies depending on the type of cancer. This survey revealed the various cardiovascular problems for which oncologists sought interventions by cardiologists. A multidisciplinary approach in an onco-cardiology service is essential to achieve optimal long-term outcomes.

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