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    Giant Post-Traumatic Pseudoaneurysm of the Superficial Temporal Artery

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    Traumatism of head arteries is rare, but among them, the superficial temporal artery is the most exposed and less protected vessel. A pseudoaneurysm of the superficial temporal artery may occur after blunt head trauma in old patients or during vigorous activity in younger people. Diagnosis should be made primarily upon history and physical examination, while duplex ultrasound is appropriate to confirm the diagnosis and CT scan to exclude other possible concomitant pathologies. Direct surgical treatment is the first and main option to solve bleeding and prevent future complications. Here reported the case of an old woman treated for a post-traumatic STA pseudoaneurysm

    Percutaneous Mechanical Thrombectomy of Atriocaval Floating Thrombus After Impella RP Removal in a Critically Ill Patient

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    The rapid institution of mechanical circulatory support (MCS) during cardiogenic shock secondary to severe biventricular failure is strongly recommended. Despite the introduction of less-invasive devices and adequate anticoagulation protocols, the presence of vascular complications in patients treated with MCS has not yet been eliminated. Here, the authors report a 60-year-old patient treated with the Bi-Pella approach for biventricular failure. Despite anticoagulant therapy, the patient developed a floating thrombosis in the inferior vena cava extending to the right atrium after the Impella RP removal. Considering the thrombus instability and the risk of pulmonary embolism, the patient was treated urgently for a percutaneous mechanical thrombectomy using the AngioJet thrombectomy system. The procedure was completed without intraoperative complications, and both the completion angiography and transesophageal echocardiography showed complete thrombus removal. No procedure-related complications occurred, but the patient died from progressive worsening of left ventricular failure on the 16th postoperative day. In the case of proximal extensive deep vein thrombosis with an increased risk of pulmonary embolism, the use of percutaneous mechanical thrombectomy could be a therapeutic option, even in critically ill patients, due to its minimally invasive nature and low rates of complications

    A Case of Covid-19 Patient with Acute Limb Ischemia and Heparin Resistance

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    Heparin resistance is an uncommon phenomenon defined as the need for high-dose unfractionated heparin (UFH) of more than 35,000 IU/day to achieve the target activated partial-thromboplastin time ratio or the failure to achieve the desired activated clotting time after a full UFH dose. This rare phenomenon is being more commonly observed in Covid-19 patients in a hypercoagulable state. We describe a Covid-19 patient confirmed by reverse-transcriptase polymerase chain reaction assay, with acute limb ischemia, who developed heparin resistance. The patient was managed by the departments of vascular surgery, anesthesia and intensive care, and the Coagulation Service and Thrombosis Research from San Raffaele Scientific Institute, Milan, Italy
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