https://www.selleckchem.com/products/4-hydroxynonenal.html Repeat TOE 2 weeks later showed the vegetation to have increased to ∼1 cm in length, so his treatment was reverted to Ampicillin. A further TOE 4 weeks later showed reduction in size to 5 mm × 2 mm. After 6 weeks of IV antibiotics, the patient was discharged on lifelong oral antibiotics. Infective endocarditis following MitraClip procedure is rare. This disease has a high mortality rate despite optimal medical and surgical therapy. Increased awareness amongst clinicians is important given an increasing volume of MitraClip procedures. Infective endocarditis following MitraClip procedure is rare. This disease has a high mortality rate despite optimal medical and surgical therapy. Increased awareness amongst clinicians is important given an increasing volume of MitraClip procedures. Coronary artery ostial stenosis is a rare but well-known complication to aortic root replacement. The occurrence of this complication in patients with the Medtronic Freestyle bioprosthesis is poorly described. We report a case of late bilateral coronary ostial stenosis due to pseudointimal membranes within a Medtronic Freestyle bioprosthesis, resulting in acute coronary syndrome. In 2013, a 43-year-old male patient received a Medtronic Freestyle bioprosthesis as a full aortic root implantation due to endocarditis with root abscess. Preoperative coronary angiography was normal. The patient, who had no previous symptoms of coronary ischaemia, presented with severe chest pain and acute coronary syndrome in 2017. Coronary angiography and electrocardiogram-gated contrast-enhanced cardiac computed tomography showed bilateral coronary ostial stenosis. The patient was successfully treated with coronary artery bypass grafting. Intraoperative inspection revealed pseudointimal membranes covering the coronary ostia. Histology showed fibro-intimal thickening with areas of inflamed granulation tissue. Bilateral coronary ostial stenosis is a sever