Micromorphology of Skeletonized and Pedicled Internal Thoracic and Radial Arteries.

The objective of the study was to estimate the internal thoracic arteries (ITA) and radial arteries (RA) micromorphologic features by light microscopy after harvesting them using the skeletonization and pedicled methods in patients undergoing coronary artery bypass grafting. The micromorphologic characteristics of ITA and RA were studied by luminous microscopy in 61 patients undergoing coronary artery bypass grafting. A total of 122 ITA and RA segments harvested during surgery, fixed in formalin, and stained with hematoxiline and eosin were evaluated.

Mechanical function of left atrium and pulmonary vein sleeves before and after their antrum isolation.

Background And Objective: Pulmonary vein (PV) sleeves are established as the main substrate taking part in the mechanisms of atrial fibrillation (AF) initiation. However, we have extremely few data concerning their physiological role in the heart contractility. The aim of the study was to estimate the mechanical function of the left atrium (LA) and PV sleeves before and early after their isolation.

'Electrical exclusion' of a critical myocardial mass by extended pulmonary vein antrum isolation for persistent atrial fibrillation treatment.

Unlabelled: The aim of the study was to compare the efficacy of pulmonary vein antrum isolation (PVAI), extended PVAI and ganglionic plexi (GP) ablation in persistent AF.

Methods: One hundred and twenty patients 56.2 ± 8.