A 2-year-old girl presented with cutaneous facial, palpebral, back, perianal, and perineal hemangiomas and a subcutaneous neck and parotid voluminous hemangioma, associated with several extracranial vascular abnormalities, such as the absence of the ipsilateral internal carotid artery and hypoplasia of the common carotid arteries. Both vertebral arteries showed an embryonic appearance, without ...

OBJECTIVES Aortic arch disease can be treated with hybrid repair (extra-anatomic bypass plus placement of aortic endoprostheses), but there is controversy about whether a bypass from one relatively small vessel will provide adequate blood flow to the entire brachiocephalic system. We, therefore, compared flow volumes before and after hybrid repair. METHODS We reviewed the records of 16 patien...

The three-dimensional arrangement of the medial smooth muscle cells of human major intracranial arteries was studied by scanning electron microscopy after removal of extracellular connective tissue matrices with a KOH-collagenase digestion method. In the straight portion of the major arteries, the smooth muscle cells were arranged roughly circularly, whereas the arrangement was somewhat random ...

 ABSTRACT Background: In patients with cervical spondylosis, cord compression and impingement of cord vessels as well as the vertebral artery may be accompanied by vertigo. We evaluated improvement of vertigo in these patients after surgical and medical treatment. Methods: In this prospective study we reviewed 16 patients with vertigo suspected of cervical spondylosis, admitted to our hospital ...

A case of bilateral anomalous origins of the vertebral arteries (VAs) is reported. Both VAs arose directly from the aortic arch between the left common carotid artery and the left subclavian artery. The possible embryologic mechanism and clinical importance of this previously unreported variant are reviewed.

A new retrieval device for use in small vessels was evaluated in a canine model. Retrieval was attempted on 25 coils, three silicone balloons, and five catheter and guide wire fragments placed in the renal, pulmonary, hepatic, brachiocephalic, subclavian, carotid, and maxillary arteries. This was successful in 91% (30/33). The snare could also be selectively placed in the vertebral and proximal...

The introduction of color-coded duplex ultrasonography has improved the ease of performing ultrasound investigations of the vertebral arteries. So far, normal values of flow velocities have been reported only for the intertransverse region of the vertebral artery (V2 segments). Atherosclerotic disease at the origin of the vertebral arteries (V0 segment) is frequent and is one of the risk factor...

Birth is a very traumatic event. This is particularly emphasized by the frequency of intracranial haemorrhage and cerebral damage in the newborn infant. However, the greatest manipulative strain in all methods of delivery is imposed on the infant's neck and it is therefore surprising that there have been very few investigations of this region except following breech delivery. Moreover none of t...

PURPOSE To evaluate the hemodynamics and tissue response associated with stent placement in low-flow-velocity arteries. METHODS Six self-expanding nitinol stents (5.5 mm caliber) were implanted transfemorally within the proximal segments of vertebral arteries (2.5 mm diameter) in six adult dogs during anticoagulative protection. RESULTS Control angiograms demonstrated patency and 20% dilata...

Arteriovenous malformations (AVMs) are the most common spinal vascular anomaly. The majority are intradural and are supplied by the spinal arteries. This paper presents an unusual A VM that was fed by the lumbar arteries and was located totally in the extradural space; in fact, its drainage enlarged the internal vertebral venous plexus, resulting in its clinical presentation as a right lumbar r...