What is transposition of great vessels?

Dextro-Transposition of the Great Arteries or d-TGA is a birth defect of the heart in which the two main arteries carrying blood out of the heart – the main pulmonary artery and the aorta – are switched in position, or “transposed.” Because a baby with this defect may need surgery or other procedures soon after birth.

What is the initial treatment for transposition for the great arteries patients?

Initial treatment of transposition of the great arteries consists of maintaining ductal patency with continuous intravenous (IV) prostaglandin E1 (PgE1) infusion to promote pulmonary blood flow, increase left atrial pressure, and promote left-to-right intercirculatory mixing at the atrial level.

How does a transposition of the large vessels arise?

Transposition of the great arteries occurs during pregnancy when the baby’s heart is developing. The cause is most often unknown. To understand transposition of the great arteries, it may be helpful to know how the heart typically pumps blood.

What is a flap graft?

Flap surgery involves a piece of tissue that still receives blood supply because it’s attached to the body by a major artery and vein or at its base. This piece of donor tissue is used in reconstructive surgery by being set into the recipient site (injured area onto which a flap or graft is placed).

What are the symptoms of TGA?

The main identifiable symptom of transient global amnesia is the sudden, but temporary, loss of short-term memory and not being able to form new memories. Symptoms include: Anxiety and agitation. Repeatedly asking questions about what is happening.

What is a transposition flap?

Transposition Flaps INTRODUCTION A transposition flap is elevated from an area of laxity, lifted over an adjacent area of tissue, and transposed into an operative wound.

What is the difference between Flap Flap and LVA?

Flap transpositions have greater morbidity than LVA or excisional procedures. The transposition flap is commonly described as a rectangular flap that adjoins an existing defect and is moved laterally for defect coverage.

How are transposition flaps used to repair nasal defects?

The base of the flap is positioned adjacent to the defect, and the donor site is repaired primarily by advancement of surrounding nasal skin. The use of transposition flaps is restricted to repair of small defects 1.0 cm or smaller in size in the thin skin zones of the nose.

What are the advantages of bilateral opposed 30° transposition flaps?

Figure 4.11Bilateral opposed 30° transposition flaps may be used to close an operative wound. Each flap closes half of the wound. The advantages of such a repair are multidirectional tension redirection and tension redistribution, similar to an O-Z bilateral rotation flap. The complex resultant scar line is a detriment.