During the routine dissection of the neck region of a 77 years old male cadaver in the Department of Anatomy at Bankura Sammilani Medical College, a unilateral variation in the position and course of internal and external carotid arteries was noticed on the right side of neck. The internal carotid artery was anteromedial to the external carotid artery at the site of bifurcation of the common ca...

BACKGROUND Coronary artery bypass grafting ranks as one of the most frequent operations worldwide. The presence of carotid artery stenosis may increase the stroke rate in the perioperative period. Routine preoperative noninvasive assessment of the carotid arteries are recommended in many institutions to reduce the stroke rate. METHODS 271 consecutive patients undergoing coronary artery bypass...

Though the variations in the carotid arteries and their branches are common in the carotid triangle, it is important for the clinicians, surgeons and the radiologists to be aware of all possible variations of these arteries. A case of abnormal origin of 2 important arteries encountered during routine dissection of carotid triangle of the neck is reported. The superior thyroid artery that normal...

We aimed to investigate the vascular effects of hyperhomocysteinemia (HHcy) on carotid arteries from young and adult rats. With this purpose young and adult rats received a solution of DL-homocysteine-thiolactone (1 g/kg body weight/day) in the drinking water for 7, 14 and 28 days. Increase on plasma homocysteine occurred in young and adult rats treated with DL-homocysteine-thiolactone in all p...

The aim of the present study was to examine the functional changes that occur when a rabbit carotid artery is cultured in serum-free medium. In endothelium (EC)-intact arteries cultured under serum-free conditions, acetylcholine (ACh)-induced relaxation responses were partially, yet significantly, reduced when compared with freshly isolated arteries. After pretreatment with NG-nitro-L-arginine ...

BACKGROUND AND PURPOSE The effects of Western-type fat diet on endothelium-dependent relaxations and vascular structure in carotid arteries from a mouse model of human atherosclerosis are not known. Our objective was to characterize the mechanisms underlying endothelial dysfunction in apoE-deficient mice. METHODS C57BL/6J and apoE-deficient mice were fed for 26 weeks with a lipid-rich Western...

Our aim was to investigate the effects of ageing on the vascular contractility of carotid and basilar arteries from guinea-pigs, in a model of total stenosis. Moreover, we attempted to identify whether total stenosis of the left common carotid (stenosed) in adult guinea-pigs, would affect the contractions of contralateral carotid (intact) and basilar arteries to different vasoconstrictors. With...

Vertebral artery aneurysms are a rare type of vasculopathy with significant risk rupture, ischemia, and potential neurological deficits. Their location in the cervical region presents surgical challenge open endovascular options alike lack consensus on best treatment option. We present an approach to vertebral aneurysm repair patient vascular Ehlers-Danlos syndrome (type IV). A 44-year-old male...

BACKGROUND AND PURPOSE Injection rates have attracted scrutiny because of an incident of an aneurysm rupturing during arteriography. We sought to determine the current injection rates for neuroangiography in the setting of aneurysm evaluation. METHODS An e-mail survey was distributed to 90 neuroradiology program directors within the United States and Canada. The injection rates and total volu...

Segments of carotid and tail artery, and thoracic aorta from control and hypertensive animals (DOCA + salt) were used for the study of mechanics and/or chemical composition. Pressure-diameter measurements were made on intact segments under conditions of active (145 mM-K+) and passive (O-Ca++ and 2 mM-EGTA) smooth muscle. Segments were used for chemical analyses of connective tissue content, wat...