In this paper, we aimed to describe a case series report of four patients that were admitted in the emergency room of our vascular and endovascular surgery department with acute arterial occlusion after a diagnosis of Covid-19 infection. The first patient was a male, 50 years, tobacco user, with arterial systemic hypertension and COVID-19 positive that was admitted with an acute arterial occlusion Rutherford IIb in the left lower limb. He was submitted to an arterial thromboembolectomy with Fogarty catheter and had a satisfactory evolution. CASE 2 was a female, 63 years, with arterial systemic hypertension, diabetes, esquizophrenia, that was admitted with acute limb ischemia (ALI) Rutherford III in the upper left limb. Despite attempts do revascularize the upper limb, the patient evolved with a hand amputation. CASE 3 was a Male patient, 49 years, HIV positive, diabetic with previous debridement in both feet due to diabetic foot infection, tobacco user and Rutherford IIb ALI in the right lower limb..The patient was submitted to an arterial thromboembolectomy with Fogarty catheter, however presented with fasciotomy infection and another post-operative complications that led him to die. Finally, CASE 4 was a female patient, 49 years, diabetic, admitted with COVID-19 infection that presented ALI during hospitalization on the right lower limb. She was submitted to proper thromboembolectomy, with a satisfactory evolution and limb salvage. COVID-19 pandemic crisis is a challenging situation that has increased the number of acute arterial thrombosis and embolism urgencies and emergencies surgeries in the vascular world. The four patients related in this paper bring valuable information regarding the impact of COVID-19 on micro and macrovascular system.

May-Thurner syndrome (MTS) is defined as extrinsic ilio-femoral venous compression by the aorto-iliac arterial system against vertebral bodies and has been associated with many abnormalities involving the arterial system as well as bony structures around the ilio-caval region. We present an unusual case of a patient who came with phlegmasia cerulea dolens in the setting of acute onset MTS after chiropractic vertebral manipulation and was treated with a multimodal interventional approach, combining pharmaco-mechanical catheter directed thrombectomy along with venoplasty with stenting and subsequent post-procedure anticoagulation and antiplatelet prophylaxis.

Acute occlusion of the basilar artery and its branches is a frequent cause of posterior circulation strokes. Although it accounts for only 1 to 3 % of ischemic strokes, it is a potentially life-threatening condition associated with high mortality rates. Exact clinical diagnosis is still challenging because symptoms such as vertigo, dizziness followed by headache, and neck pain are nonspecific and usually attributed to many other neurological diseases. The onset of symptoms can be abrupt or gradual and progressive. Establishing the time of symptoms onset and making a timely diagnosis is highly important. In case the diagnosis is made promptly, ideally with the help of an advanced neuroimaging, intravenous thrombolysis, or catheter-based endovascular treatment can be performed immediately to improve prognosis and reduce mortality.

CREST syndrome is rare autoimmune disease causing calcinosis, Raynaud phenomenon, esophageal dysmotility, sclerodactyly and telangiectasias. We present a case of an eighty-two year old female with CREST syndrome who presented to our clinic with atrial fibrillation and prohibitive bleeding risk. Managing stroke risk in atrial fibrillation is essential to minimize the morbidity and mortality of the condition. Those with CREST syndrome presenting with recurrent gastrointestinal bleeding may require alternatives to anticoagulation. Recently, the left atrial appendage occluder device became widely used to manage patients at increased risk for bleeding. The device provides a safe and efficacious alternative in lowering atrial fibrillation associated stroke risk. Our patient underwent uncomplicated implantation of the left atrial appendage occluder device. She was closely monitored for one year where she remained stroke free and had one minor episode of gastrointestinal hemorrhage.

The extrinsic compression of the left main coronary artery secondary to pulmonary artery trunk dilatation is a relatively rare syndrome. It is mostly associated with congenital acyanotic heart disease, idiopathic pulmonary arterial dilatation or primary pulmonary hypertension. Most cases of pulmonary artery hypertension with no atherosclerotic risk factors rarely undergo coronary angiography, and hence, diagnoses are seldom made and proper management is delayed.We describe a patient with Ostium secundum atrial septal defect with severe pulmonary hypertension who presented with clinical angina ,diagnosed to have left main coronary artery compression by CT angiography ,underwent successful percutaneous coronary intervention with good symptomatic relief.