Compatibility of left-sided double-lumen endobronchial tubes with tracheal and bronchial dimensions: a retrospective comparative study.

Background: Double-lumen endobronchial tubes (DLT) continue to be the most widely used method for obtaining lung isolation during anesthesia. We compared recommendations for DLT size selection with radiologically assessed lower airway dimensions gathered from a large patient population.

Methods: For this retrospective comparative study, we assessed computed tomography (CT) scans of 150 adults with no known airway pathologies.

Dimensional Variations of Left-Sided Double-Lumen Endobronchial Tubes.

Background: Tube size selection is critical in ventilating patients' lungs using double-lumen endobronchial tubes (DLTs). Little information about relevant parameters is readily available from manufacturers. The aim of this study is to provide reference data for relevant dimensions of conventionally available DLTs.

Metalloproteinases facilitate connection of wound bed vessels to pre-existing skin graft vasculature.

Background: Despite advances in tissue engineering of human skin, the exact revascularization processes remain unclear. Therefore it was the aim of this study to investigate the vascular transformations during engraftment and to identify associated proteolytic factors.

Methods: The modified dorsal skinfold chamber with autologous skin grafting was prepared in C57BL/6J mice, and intravital microscopy was performed.

In vivo visualization of the origination of skin graft vasculature in a wild-type/GFP crossover model.

Introduction: Skin substitutes are increasingly produced in tissue engineering, but still the understanding of the physiological skin revascularization process is lacking. To study in vivo conditions we recently introduced a mouse model, in which we already characterized the angiogenic changes within the wound bed and the skin graft. The aim of this study was to identify the origination of the vasculature during skin graft revascularization in vivo and to track vessel development over time.

Temporary angiogenic transformation of the skin graft vasculature after reperfusion.

Background: In the era of tissue engineering, the physiologic process of skin graft revascularization remains unclear, preventing the successful development of skin substitutes. Therefore, the authors developed a new in vivo model with which to visualize the process of engraftment and its microvascular architecture. The aim of this study was to specifically investigate the vascular transformations within the skin graft to gain applicable knowledge on how vascular processes during engraftment occur.