Color Doppler sonographic study of an iatrogenic fistula between the common carotid artery and internal jugular vein

Carotid Artery-to-Jugular Vein Fistula: Repair Using Cardiopulmonary Bypass

An internal carotid artery-to-internal jugular vein fistula was observed at angiography in a 35-year-old man who had sustained a gunshot injury 6 months earlier. Successful repair required institution of cardiopulmonary bypass.

Late-onset congestive heart failure with multiple carotid-jugular fistulae and pseudoaneurysm after penetration injury

Trauma-acquired multiple arteriovenous fistulae with late-onset congestive heart failure has not been documented. We describe a 29-year-old man who presented with progressive congestive heart failure 25 years after a penetrating trauma to the left side of the neck. The neck duplex showed a large shunt between the carotid artery and internal jugular vein. Arteriography showed three high-flow arteriovenous fistulae between these two vessels. Magnetic resonance angiography (MRA) showed a carotid pseudoaneurysm originating from three different loci of the carotid artery with a large aneurysm-venous communication between the pseudoaneurysm and the internal jugular vein. Reconstruction of contrast MRA showed three different arteriovenous fistulae, leading to the decision to perform aneurysmectomy, carotid artery repair and jugular vein patch angioplasty. The favorable outcome of this case illustrates that surgery is a reasonable alternative when an endovascular approach is not feasible in patients with trauma-acquired arteriovenous fistulae.

Echo-Doppler findings of a carotid-jugular fistula in a foal

A seven-month-old male Standardbred was referred with a 4-month history of left jugular groove distension. On physical examination severely dilated left maxillary, linguofacial and jugular veins were appreciable. Blood gas analysis results indicated higher degree of oxygenation in the left jugular vein. Bi-directional flow signals, with normal systolic and early diastolic flow, and late diastolic retrograde flow, were noted on pulsed-wave Doppler interrogation and color flow mapping of the left jugular blood flow. A systolic-diastolic signal with spectral broadening was detected when positioning the sample gate near the internal jugular wall, in the distal left cervical region. Color Doppler imaging of the same region showed blood flow passage between the left common carotid artery and the left jugular vein through a small carotid-jugular fistula. Markedly increased blood flow velocities and volumetric flow, and decreased resistive index were recorded in the left compared to the right common carotid artery.

Reverse jugular flow in a case of thrombosis of the brachiocephalic vein with an artificial arteriovenous fistula

Thrombosis of the thoracic inlet veins following placement of a central venous catheter is a well-known complication, and several findings have been reported by color Doppler sonography. However, reverse jugular flow resulting from this complication is rarely mentioned and should be differentiated from another complication of iatrogenic arteriovenous fistula between neck vessels. The authors here describe a uremic patient with an artificial arteriovenous fistula in the forearm complicated with thrombosis of the ipsilateral brachiocephalic vein. Factors permitting the differential diagnosis by coloer Doppler sonography and clinical conditions are proposed.