Publications by authors named "V A Safonov"
Article Synopsis
- A rare variant of the common arterial trunk was surgically repaired successfully, featuring an atypical arrangement of pulmonary arteries.
- The variant could not be classified via existing classification systems and is distinguished by aortic dominance and extrapericardial origins of the pulmonary arteries.
- The authors discuss the cardiac development behind this unique anatomical structure, providing insights into how it formed.
Introduction And Importance: A gunshot wound is the most common injury in armed conflicts, resulting in severe trauma and increased morbidity usually due to damage to major vessels. Gunshot injury could be associated with the projectile location in one anatomical area, but the initial inlet place in another.
Presentation Of Case: A 33-years old male patient received gunshot injuries to the left axillary area of the chest and left upper extremity in the battlefield area near Kyiv (Ukraine).
An Alternative Approach for a High Partially Anomalous Pulmonary Venous Connection to the Superior Vena Cava: "A Drawbridge Technique".
World J Pediatr Congenit Heart Surg
July 2022
We present an alternative technique for the repair of a high partially anomalous pulmonary venous connection to the superior vena cava.
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- The paper investigates the properties of thin films of tantalum and its compounds on stainless steel substrates, focusing on microstructural, nanomechanical, and tribological characteristics.
- Energy dispersive spectroscopy was used to analyze film compositions, while atomic force microscopy (AFM) assessed surface morphology, revealing that the films were uniform with low roughness.
- The study found that adding oxygen and nitrogen increased the microhardness of the tantalum films and that the coatings reduced the coefficient of friction (CoF), suggesting improvements in durability for coated products.
Article Synopsis
- The study compares lipid peroxidation and antioxidant defense in infertile cows with varying selenium levels in their environment.
- Cows from selenium-deficient areas exhibited significantly lower microelement levels in blood, leading to increased malondialdehyde levels and decreased antioxidant enzyme activity.
- Higher enzyme activity related to liver function and lower calcium levels suggest potential pathological conditions in these cows, indicating a strong link between selenium deficiency and their overall health status.