Predictors of Premature Ventricular Contractions Development in Patients With SARS-CoV-2 Infection.

Background: Epidemiological studies have demonstrated that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-positive patients often develop atrial fibrillation, premature ventricular contractions (PVCs), and conduction disorders. The manifestation of ventricular cardiac arrhythmias accentuates the risk of sudden cardiac death.

Methods: A retrospective study was conducted on the cohort of 1,614 patients admitted for coronavirus disease 2019 (COVID-19).

Significance of Hypoalbuminemia in the Development of Thromboembolic Complications in Severe Cases of SARS-CoV-2 Coronavirus Infection.

Background: The course of coronavirus disease 2019 (COVID-19) is associated with the progression of a wide range of complications, among which thrombosis and thromboembolism are of particular importance. The significance of hypoalbuminemia in the development of thromboembolic complications (TECs) in patients with a severe course of COVID-19 is currently under active discussion. The objective of our study was to evaluate the significance of hypoalbuminemia in the development of TECs in patients with severe SARS-CoV-2 coronavirus infection.

Metastasis of Testicular Choriocarcinoma in the Stomach, Complicated by the Development of Choriocarcinoma Syndrome.

Choriocarcinoma (CC) is a very rare and aggressive neoplasm. The characteristic feature of this disease is a rapid hematogenous spread, mainly to the lungs and brain, which largely defines clinical signs of the disease and complicates the diagnosis. Gastrointestinal metastases are rare, and of those, only few cases with gastric location have been reported.

Anaplastic Carcinoma of the Pancreas: Clinical and Morphological Characteristics.

Anaplastic pancreatic carcinoma is a very rare histological subtype of pancreatic cancer, which is characterized by a more aggressive course than for conventional ductal adenocarcinoma. In this article, we consider the features of the clinical course, the difficulties of diagnosis in connection with the absence of pathognomonic signs of pancreatic cancer, and the morphological picture of this disease in a patient 60 years of age. This clinical case clearly demonstrates the complexities of the pancreatic carcinoma diagnosis, fast disease progression, and extremely unfavorable prognosis.