No abstract available.
Aneurysm, False ; Carotid Artery Injuries*

Surgical resection is the only option for the treatment of carotid body tumor. The tumor is characterized by its hypervascularity and adherence to the carotid artery. Neurovascular injuries have been a well known surgical complication during the procedure. We experienced a case of carotid artery injury during the resection of carotid body tumor and which was reconstructed with interposition graft using autogenous vein. Vascular injury as a complication during the resection of carotid body tumor was reviewed.
Carotid Arteries ; Carotid Artery Injuries ; Carotid Body Tumor ; Carotid Body ; Transplants ; Vascular System Injuries ; Veins

There are many vital structures in the neck, but they are not protected by bone. The neck is vulnerable to injury, and difficult to evaluate the extent of injury. Especially, penetrating neck wounds are potentially dangerous and require emergency treatment. A 56-year-old man with a penetrating neck injury by a grass cutter fragment was transferred from another hospital. There were no immediate life-threatening signs or symptoms. Carotid artery injury was suspected in the computed tomography scan. Emergent exploration was implemented by vascular surgery to remove the grass cutter fragment that had penetrated the left common carotid artery. We report a rare case of common carotid artery penetrating injury that was treated without any complications.
Carotid Artery Injuries ; Carotid Artery, Common ; Emergency Treatment ; Humans ; Middle Aged ; Neck ; Neck Injuries ; Poaceae ; Pregnancy

Penetrating neck injuries are potentially dangerous and require emergent management because of vital structures in the neck. A 35-year-old woman was transferred to the hospital with massive bleeding in her mouth and lacerations of her neck after the stab injuries. Contrast-enhanced computed tomography (CT) and angiography revealed a leakage at the pharyngeal portion of the right internal carotid artery. Emergent endovascular treatment was undertaken by using the stent technique. The leakage was completely occluded immediately after the procedure. There was no complication. The stent technique was safe and effective for the treatment of zone III carotid artery stab injuries.
Adult ; Angiography ; Carotid Arteries ; Carotid Artery Injuries ; Carotid Artery, Internal ; Female ; Hemorrhage ; Humans ; Lacerations ; Mouth ; Neck ; Neck Injuries ; Stents

Blunt carotid artery injury is uncommon, yet not rare. However, it is often underdiagnosed because of inconsistent early symptoms or masking by the presence of coexisting brain and spinal injuries. The delay between the accident and the onset of cerebral ischemic symptoms is variable and has been reported to range from minutes to ten years. However, to our knowledge, there has been no report on a case presented with delayed intracerebral hemorrhage 25months after blunt carotid artery injury. We report on a case with discussion of supporting evidence and possible mechanisms.
Brain ; Carotid Arteries* ; Carotid Artery Injuries* ; Cerebral Hemorrhage ; Masks ; Spinal Injuries

BACKGROUND AND OBJECTIVES: ovastatin, a HMG-CoA reductase inhibitor, is known to show antiproliferative effects on VSMC after vessel injury, but a large amount of the drug is needed orally for this purpose. This study investigated the effects of lovastatin given locally to injured carotid arteries of rats on reducing neointimal hyperplasia. MATERIALS AND METHOD: Lovastatin was given perivascularly to balloon-injured carotid arteries of 21 rats in 1 microM to the low-dose group, and 30 microM to the high-dose group. The control group was treated with pluronic gel only. Two weeks later, the lumen area, neointimal areas and the number of actively proliferating cells were obtained and compared. RESULTS: eointimal area was 0.113+/-0.032 mm2, 0.065+/-0.017 mm2, 0.072+/-0.017 mm2 in the control, low-dose and high-dose groups respectively. The area was significantly smaller in the treatment groups (p<0.05), but no significant difference was observed between the treatment groups. The number of actively proliferating cells per mm2 of neointimal area were 714.5+/-227.4, 688.4+/-333.7, and 1526.3+/-744.0 in the groups respectively, and the number was significantly high in the high-dose group (p<0.05). CONCLUSION: Local administration of lovastatin is effective in reducing neointimal hyperplasia after vascular injury, but extremely high doses are not needed locally for this purpose.
Animals ; Carotid Arteries* ; Carotid Artery Injuries* ; Hyperplasia* ; Lovastatin* ; Oxidoreductases ; Rats* ; Vascular System Injuries

BACKGROUND AND OBJECTIVES: ovastatin, a HMG-CoA reductase inhibitor, is known to show antiproliferative effects on VSMC after vessel injury, but a large amount of the drug is needed orally for this purpose. This study investigated the effects of lovastatin given locally to injured carotid arteries of rats on reducing neointimal hyperplasia. MATERIALS AND METHOD: Lovastatin was given perivascularly to balloon-injured carotid arteries of 21 rats in 1 microM to the low-dose group, and 30 microM to the high-dose group. The control group was treated with pluronic gel only. Two weeks later, the lumen area, neointimal areas and the number of actively proliferating cells were obtained and compared. RESULTS: eointimal area was 0.113+/-0.032 mm2, 0.065+/-0.017 mm2, 0.072+/-0.017 mm2 in the control, low-dose and high-dose groups respectively. The area was significantly smaller in the treatment groups (p<0.05), but no significant difference was observed between the treatment groups. The number of actively proliferating cells per mm2 of neointimal area were 714.5+/-227.4, 688.4+/-333.7, and 1526.3+/-744.0 in the groups respectively, and the number was significantly high in the high-dose group (p<0.05). CONCLUSION: Local administration of lovastatin is effective in reducing neointimal hyperplasia after vascular injury, but extremely high doses are not needed locally for this purpose.
Animals ; Carotid Arteries* ; Carotid Artery Injuries* ; Hyperplasia* ; Lovastatin* ; Oxidoreductases ; Rats* ; Vascular System Injuries

Penetrating neck injuries are potentially dangerous and require emergent management because of the presence of vital structures in the neck. Penetrating vascular trauma to zone I and III of the neck is potentially life-threatening. An accurate diagnosis and adequate surgical intervention are critical to the successful outcome of penetrating trauma in the neck. We experienced some cases with externally penetrating injuries in neck zone II in which the patients were confirmed to have the presence of large vessel injuries in neck zones I and III. Here we report on the endovascular stent techniques used in two cases to address penetrating carotid artery injuries and review the literature.
Angiography ; Carotid Arteries ; Carotid Artery Injuries ; Glycosaminoglycans ; Humans ; Lacerations ; Neck ; Neck Injuries ; Stents ; Wounds, Penetrating

Radiation induced carotid stenosis (RICS) is known but challenging complication of head and neck irradiation. Endovascular revascularization is preferred treatment modality than surgical revascularization. Sometimes endovascular treatment may be difficult in view of long segment of stenosis and associated pseudoaneurysm. We report a unique technique of carotid stenting named as "conjoined stent technique" in a challenging case of RICS with long segment of stenosis and pseudoaneurysm. In this technique we overlapped distal end of one stent with proximal end of second stent to occlude pseudoaneurysm. "Conjoined stent technique" may be viable option in case of long segment of RICS with associated pseudoaneurysm and alternative to flow diverters in extracranial carotid pseudoaneurysm.
Aneurysm, False* ; Carotid Artery Injuries ; Carotid Stenosis* ; Constriction, Pathologic ; Head ; Neck ; Radiation Injuries ; Stents*

An internal carotid artery (ICA) tear during or after trans-sphenoidal surgery (TSS) is rare but may cause potentially lethal complications. A 23-year-old female patient visited our hospital for treatment of a Rathke's cleft cyst. The patient had massive hemorrhage during surgery and angiography performed after surgery showed laceration of the cavernous ICA. We successfully controlled the hemorrhage with emergency placement of an endovascular stent-graft.
Angiography ; Carotid Artery Injuries ; Carotid Artery, Internal ; Caves ; Emergencies ; Female ; Hemorrhage ; Humans ; Lacerations ; Stents ; Young Adult