No abstract

No abstract

No abstract

We describe a 34‐year‐old woman with periarteritis nodosa (PAN) presenting as a breast lesion. Localized involvement of the breast is an unusual manifestation of PAN. To date, 10 cases have been reported: all were in women with an age range of 45–78 years (mean 63). In most cases, breast lesions were an isolated finding, and the prognosis was favourable, setting them apart from the more common form of systemic PAN. The case presented is unusual in that vasculitis developed in the postpartum period, and was associated with cutaneous PAN‐like lesions elsewhere on the body, and digital artery occlusion. The most important differential diagnoses of PAN of the breast are infectious mastitis, mammary malignancy and other forms of idiopathic vasculitides of the breast, e.g. giant cell arteritis and Wegener granulomatosis.

Survival following emergent open repair for thoracic aortic dissection was significantly greater at high-volume centers. These findings suggest that understanding the processes at high-volume centers that underlie this volume-outcomes relationship may improve in-hospital survival and postoperative complications.

Aortic dissection is a rare, potentially catastrophic vascular emergency. Early recognition of the clinical manifestations, rapid confirmation using imaging modalities, urgent administration of appropriate medication and expedient selection of definitive long-term therapy are key to preserving life and reducing morbidity. In recent years it has become increasingly clear that there is a relation between cocaine and aortic dissection. Cocaine serves as both a predisposing factor to aortic dissection due to its effect on aortic connective tissue and as a precipitating factor due to its propensity to produce abrupt and severe hypertension. While similarities exist in the clinical features and diagnostic methods between cocainerelated aortic dissection and aortic dissection unrelated to cocaine use, there are important differences in management between these two syndromes which are rooted in the pharmacology and physiology of cocaine. An understanding of these differences is key to effective early and long-term management of cocaine-related aortic dissection.

The development of bare metal stent (BMS) was a major advancement over plain old balloon angioplasty (POBA) in the management of symptomatic coronary artery disease. BMS prevented restenosis by attenuating early arterial recoil and contraction; both seen commonly after POBA. However, the rate of clinically indicated target lesion repeat revascularization due to a process of in-stent restenosis (ISR) at 1 year remained relatively high (10 to 20 %), often due to excessive neointimal growth (Fischman et al. N Engl J Med. 331:496, 1994; Serruys et al. N Engl J Med. 331:489, 1994; Cutlip et al. J Am Coll Cardiol 40:2082, 2002). Stents with drug elution technology (DES) were developed to reduce the relatively high rate of ISR and subsequent repeat revascularization seen with BMS. Clinical trials have confirmed a reduction of as much as 50 to 70 % in target lesion revascularization by DES compared to BMS. These findings have led to the preferential use of DES in the majority of percutaneous coronary intervention (PCI). However, as DES require a longer period of dual antiplatelet therapy (DAPT) to prevent stent thrombosis, DES are not appropriate for all patients.

Pulmonary embolisms (PEs) in coronavirus disease 2019 (COVID-19) have increasingly been reported in observational studies. However, limited information describing their clinical characteristics and outcomes exists. Our study aims to describe clinical features and risk stratification strategies of hospitalized COVID-19 patients with PE. We retrospectively analyzed 101 hospitalized patients with COVID-19 infection and acute PE. Clinical outcomes measured were intensive care unit admission, mechanical ventilation, bleeding and transfusion events, acute kidney injury (AKI) and mortality. Pulmonary severity index (PESI) scores were used for risk stratification. The most common comorbidities were hypertension (50%), obesity (27%) and hyperlipidemia (32%) among this cohort. Baseline D-dimer abnormalities (4,647.0 § 8,281.8) were noted on admission with a 3-fold increase at the time of PE diagnosis (13,288.4 § 14,917.9; p <0.05). Five (5%) patients required systemic thrombolysis and 12 (12%) patients experienced moderate to severe bleeding. Thirty-one (31%) patients developed AKI and 1 (1%) patient required renal replacement therapy. Twenty-three (23%) patients were admitted to intensive care unit, of which 20 (20%) patients received mechanical ventilation. The mortality rate was 20%. Most patients (65%) had Intermediate to high risk PESI scores (>85), which portended a worse prognosis with higher mortality rate and length of stay. In conclusion, this study provides characteristics and early outcomes for hospitalized patients with COVID-19 and acute pulmonary embolism. PESI scores were utilized for risk stratifying clinical outcomes. Our results should serve to alert the medical community to heighted vigilance of this VTE complication associated with COVID-19 infection.