vascular ring

Vascular rings make up a small percentage of all congenital heart problems.

These defects cause an abnormal formation called a vascular ring - a circle of blood vessels.

Double aortic arch is a subtype of complete vascular ring.

Complete vascular rings represent about 0.5-1% of all congenital cardiovascular malformations.

Such course of this aberrant vessel may cause a vascular ring around the trachea and oesophagus.

The symptoms are related to the compression of the trachea, esophagus or both by the complete vascular ring.

Brown staining of vascular ring.

Vascular ring connector is a licensed medical implant in the United States and Taiwan.

A vascular ring is a congenital defect in which there is an abnormal formation of the aorta and/or its surrounding blood vessels.

Secondary Bronchomalacia may occur by extrinsic compression from an enlarged vessel, a vascular ring or a bronchogenic cyst.

Replacement of the damaged section of aorta with a sutureless vascular ring connector-reinforced dacron graft.

DAA is an anomaly of the aortic arch in which two aortic arches form a complete vascular ring that can compress the trachea and/or esophagus.

Non-perfused elements of other types of vascular rings (e.g. left arch with atretic (closed) end) or the ligamentum arteriosum might be difficult to visualize by echocardiography.

He began clinical applications in 1993, subsequently performing a series of surgical firsts, including the world's first endoscopic vascular ring division, diaphragm plication, and thoracic duct ligation.

The right aortic arch is completing the vascular ring by passing to the right and then behind the esophagus and trachea to join the usually left-sided descending aorta.

Vascular ring connector (VRC) is a titanic ring used as a stent in the vascular graft to achieve a quick, blood-sealed, and sutureless anastomosis.

Although in these cases a complete ring of two patent aortic arches is not present, the term 'vascular ring' is the accepted generic term even in these anomalies.

The basis for the radiologic diagnosis by barium swallow (esophagram) of double aortic arch (and other forms of vascular rings) was described in 1946 by Neuhauser from the same institution.

A right-sided aortic arch does not cause symptoms on itself, however when it is accompanied by other vascular abnormalities, it may form a vascular ring, causing symptoms due to compression of the trachea and/or oesophagus.

In the first type of grafting experiment, called top grafting, a 5-cm scion cut into a wedge at the bottom was inserted into the vascular ring at the cut surface of a 50-cm-high rootstock (Figure 1A).

A double aortic arch; occurs with the development of an abnormal right aortic arch in addition to the left aortic arch, forming a vascular ring around the trachea and esophagus, which usually causes dificutly breathing and swallowing.

In children, other upper airway diseases such as allergic rhinitis and sinusitis should be considered as well as other causes of airway obstruction including: foreign body aspiration, tracheal stenosis or laryngotracheomalacia, vascular rings, enlarged lymph nodes or neck masses.