Percutaneous coronary intervention in a patient with heparin resistance due to essential thrombocythaemia: a case report.

ABSTRACT:

Background

Coronary artery disease is uncommon in patients with essential thrombocythaemia (ET); therefore, no treatment strategies have been established.

Case summary

A 68-year-old man visited our hospital with worsening effort angina complicated with ET. Coronary angiography (CAG) revealed moderate stenosis of the left main trunk and left anterior descending artery (LAD). We planned to perform percutaneous coronary intervention (PCI) only after the patient's platelet count had fallen below 600 000/μL. Platelet factor 4 levels were markedly elevated (355.0 ng/mL; the normal range is <20 ng/mL). We observed a de novo lesion in the proximal left circumflex artery and stenosis progression in the LAD at the time of the PCI, neither of which had been detected at the previ

SUBMITTER: Okabe T 

PROVIDER: S-EPMC8186923 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature