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Extracranial cerebrovascular disease has been the subject of intense research throughout the world, and is of paramount importance for vascular surgeons. This guideline, written by the Brazilian Society of Angiology and Vascular Surgery (SBACV), supersedes the 2015 guideline. Non-atherosclerotic carotid artery diseases were not included in this document. The purpose of this guideline is to bring together the most robust evidence in this area in order to help specialists in the treatment decision-making process. The AGREE II methodology and the European Society of Cardiology system were used for recommendations and levels of evidence. The recommendations were graded from I to III, and levels of evidence were classified as A, B, or C. This guideline is divided into 11 chapters dealing with the various aspects of extracranial cerebrovascular disease: diagnosis, treatments and complications, based on up-to-date knowledge and the recommendations proposed by SBACV.

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Resumo A doença cerebrovascular extracraniana tem sido intensamente investigada em todo o mundo, sendo tema de suma importância para os cirurgiões vasculares. A presente Diretriz foi elaborada pela Sociedade Brasileira de Angiologia e Cirurgia Vascular (SBACV) em sucessão à Diretriz de 2015. As doenças de etiologia não ateroscleróticas não foram incluídas nesse documento. O objetivo desta Diretriz é congregar as evidências mais robustas nessa área para auxiliar os especialistas no processo decisório do tratamento. Foi utilizada a metodologia AGREE II e o sistema da Sociedade Europeia de Cardiologia para as recomendações e níveis de evidências. As recomendações foram graduadas de I a III, e os níveis de evidência classificados em A, B e C. A presente Diretriz foi dividida em 11 capítulos, que tratam dos vários aspectos da doença cerebrovascular extracraniana: diagnóstico, tratamentos e complicações, de forma atualizada e com as recomendações propostas pela SBACV.

Abstract Extracranial cerebrovascular disease has been the subject of intense research throughout the world, and is of paramount importance for vascular surgeons. This guideline, written by the Brazilian Society of Angiology and Vascular Surgery (SBACV), supersedes the 2015 guideline. Non-atherosclerotic carotid artery diseases were not included in this document. The purpose of this guideline is to bring together the most robust evidence in this area in order to help specialists in the treatment decision-making process. The AGREE II methodology and the European Society of Cardiology system were used for recommendations and levels of evidence. The recommendations were graded from I to III, and levels of evidence were classified as A, B, or C. This guideline is divided into 11 chapters dealing with the various aspects of extracranial cerebrovascular disease: diagnosis, treatments and complications, based on up-to-date knowledge and the recommendations proposed by SBACV.

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This report demonstrates the successful treatment of a carotid artery pseudoaneurysm using percutaneous thrombin injection. The patient, a 62-year-old woman with multiple comorbidities, experienced a pseudoaneurysm following an unintentional carotid artery puncture during a failed attempt to place a triple lumen catheter in the right jugular vein. Percutaneous thrombin injection was chosen as the treatment method, with Doppler ultrasound monitoring. Follow-up examinations showed no signs of recurrence, and the patient was discharged after nine days without complications.

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Ruptured cerebral aneurysms that occur in the anterior wall of the internal carotid artery (ICA) are known as blood blister-like aneurysms (BBAs); they have been reported to account for 0.3% to 1% of all ruptured ICA aneurysms. In this report, we describe the treatment of an unusual traumatic BBA (tBBA) with high-flow bypass using a radial artery graft, which resulted in a favorable outcome. A 59-year-old female suffered from an acute epidural hematoma, traumatic subarachnoid hemorrhage, and traumatic carotid-cavernous sinus fistula (tCCF) after being involved in a motor vehicle accident. Her angiography results showed tCCF and a tBBA on the anterior wall of the right ICA. On the fourth day after injury, we found rebleeding from the tBBA and performed an emergency high-flow bypass using a radial artery graft with lesion trapping as a curative procedure for the tCCF and tBBA. Postoperatively, right abducens nerve palsy appeared, but no other neurological symptoms were noted; the patient was thereafter transferred to a rehabilitation hospital 49 days after injury. Traumatic ICA aneurysms commonly occur close to the anterior clinoid process, form within 1 to 2 weeks of injury, and often rupture around 2 weeks after trauma. This case was considered rare as the ICA was likely injured and bleeding at the time of injury, resulting in a form of tBBA; this allowed early detection and appropriate treatment that resulted in a good outcome.

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Our understanding of blunt cerebrovascular injury (BCVI) has evolved considerably over recent decades. It was once seen as a rare injury that was difficult or impossible to predict and had no useful prevention or treatment measures available. In the late 20th century, work by physicians caring for these injuries began to show that this was not the case. There were distinct risk factors for the injury and the often seen interval between injury and stroke provided an opportunity for stroke prevention. Timothy Fabian and the investigators at Memphis have been one of the groups at the forefront of this type of inquiry for >30 years. The contributions of this group has advanced the care of BCVI immensely. This review examines some of the work done by Dr Fabian and his colleagues and its importance in the care of injured patients.

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Few reports have been made on the presentation and treatment of schwannomas originating in the sphenoid sinus due to their rarity. We report the case of a 60-year-old woman who presented with a cyst-like mass in the right sphenoid sinus on magnetic resonance imaging. Computed tomography showed a bone defect in the internal carotid artery (ICA) and enlargement of the round foramen on the affected side. A histopathological diagnosis of schwannoma was made, and endoscopic sinus surgery was performed. The anterior part of the tumor could be easily removed by aspiration; however, its adhesion to the ICA was remarkable, and its boundaries were unclear. Although partial paralysis of the maxillary nerve remained, no recurrence occurred for over 10 years. Careful evaluation should be performed to check for bone defects in the nerve to differentially diagnose schwannoma from cystic masses of the sphenoid sinus. Additionally, excision of masses similar to the presented case may expectedly be difficult because of unclear excisional margins and strong capsule adherence to important organs such as the ICA. Moreover, correct imaging, histopathological diagnosis, and appropriate informed consent are essential before surgery.

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Young adults who present to the ED with neck pain following non-penetrating, seemingly trivial trauma to the neck, are at risk of neck artery dissection and subsequent stroke. Sport-related neck injury is the chief cause. Physical examination may often be unremarkable, and although there may be reluctance to expose young patients to radiation, radiological imaging is central to making a diagnosis of arterial wall disruption. A comprehensive literature search was performed in relation to neck artery dissection, and the evidence was scrutinised. We discuss the typical mechanism of injury, symptoms, anatomical considerations and clinical aids in diagnosis of neck artery dissection. Although the incidence is low, neck artery dissection has a mortality of 7%. As such, it is important for front-line physicians to have a high suspicion of the diagnosis and a low threshold to organise radiological examinations, specifically computerised tomography. Early detection of neck artery dissection will trigger clinical protocols that call for multi-disciplinary team management of this condition. In general, guideline-based recommendation for the management of neck artery dissection involving an intimal flap is by anti-platelet therapy while treatment of neck artery dissection that results in a pseudo-aneurysm or thrombosis is managed by surgical intervention or endovascular techniques. Close follow up combined with antithrombotic treatment is recommended in these individuals, the goal being prevention of stroke.

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In Eagle syndrome, elongated styloid processes may provoke internal carotid dissection and pseudoaneurysm causing stroke and data regarding possible complications or long-term results of pseudoaneurysm treatment using a flow diverter are limited. We report a case of a dissection-related pseudoaneurysm in the left cervical carotid artery treated by implantation of a flow diverter. Follow-up imaging of the flow diverter showed fracture of a continuous radiopaque marker at 3 months and fracture of a second continuous radiopaque marker at 7 months, while contrasting of the vessel was preserved. At the time of angiographic control (8 months after implantation), the flow diverter and the extracranial left internal carotid artery were occluded, and the patient did not experience any symptoms throughout the period.

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Traumatic internal carotid artery injuries can produce direct carotid-cavernous fistulas as well as giant internal carotid artery pseudoaneurysms. Clinical sequelae can include headaches, cranial nerves palsies, proptosis, chemosis and optic neuropathy with visual loss as the most dangerous complication. Herein, we present a case of one of the largest reported internal carotid artery pseudoaneurysms associated with a direct carotid cavernous fistula. We describe the techniques and pitfalls of treatment with parent vessel occlusion.

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High energy trauma has been considered a risk factor for blunt cerebrovascular injuries (BCVI). The purpose of this study was to determine the incidence and risk factors for BCVI specifically in patients with maxillofacial fractures in an urban level I trauma center. A retrospective cohort study of patients aged ≥ 18 years, admitted to Massachusetts General Hospital (MGH) between 2007 and 2017, was implemented. There were 23,394 patients treated and entered into the MGH Trauma Registry: 22,287 sustained blunt trauma. Of the total blunt trauma patients, 68 (0.3%) had BCVI. There were 2421 patients with CMF fractures from blunt trauma (mean ± standard deviation age, 53 ± 22 years; 29.9% female included as study subjects, of whom 24 (1.0%) had BCVI). In a multivariate model, all mandible fracture (odds ratio (OR) 4.3, 95% confidence interval (CI) 1.6-11.6, P = 0.004), crush injury, defined as blunt compression injury (OR 11.1, 95% CI 2.1-58.1, P = 0.004), and cervical spine injury (OR 10.1, 95 CI 3.7-27.5, P < 0.001) were independent risk factors for BCVI. Mortality was 4.3 times higher in craniomaxillofacial fracture patients with BCVI versus those without BCVI; complications of BCVI (stroke) contributed to the majority of deaths. Appropriate screening and treatment of BCVI in patients with maxillofacial fractures is important.

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Common carotid artery (CCA) rupture during parathyroid cancer surgery is extremely rare and is generally life-threatening. We present a case of successful management of a ruptured CCA following the emergency placement of stent-graft in a 59-year-old male diagnosed with recurrent parathyroid cancer. During recurrent parathyroid cancer surgery, his right CCA ruptured unexpectedly, and his vital signs deteriorated rapidly despite surgical management. After stent replacement, his unstable vital signs improved and, thereafter, he was discharged without any complications.

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Of all thyroid cancers, anaplastic thyroid carcinoma (ATC) has the lowest incidence and worst prognosis. In this report, we describe a 64-year-old female patient who underwent total thyroidectomy and level VI neck dissection for papillary thyroid carcinoma. During follow-up, she showed signs of regional recurrence and underwent extended neck dissection and cervical esophagectomy. Intraoperatively, there was no cleavage plane between the tumor and the common carotid artery (CCA), so a carotid shunt was implanted and en bloc resection, including the affected CCA and esophagus segments was performed followed by vascular bypass with interposition of a great saphenous vein graft. A pathology review found evidence of anaplastic carcinoma. The patient underwent adjuvant treatment and has no signs of locoregional recurrence. Presented with the possibility of carrying out curative surgery with en bloc resection, the vascular surgeon must be prepared for the surgical options.

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Objectives: Current guidelines for screening for blunt cerebrovascular injury (BCVI) are commonly based on the expanded Denver criteria, a set of risk factors that identifies patients who require CT-angiographic (CTA) screening for these injuries. Based on previously published data from our center, we have adopted a more liberal screening guideline than those outlined in the expanded Denver criteria. This entails routine CTA of the neck for all blunt trauma patients already undergoing CT of the cervical spine and/or CTA of the chest. The aim of this study was to analyze the incidence of patients with BCVI who did not meet any of the risk factors included in the expanded Denver criteria. Methods: A retrospective review of all patients diagnosed with BCVI between June 2014 and December 2019 at a Level I Trauma Center were identified from the trauma registry. Medical records were reviewed for the presence or absence of risk factors as outlined in the expanded Denver criteria. Demographic data, time to CTA and treatment, BCVI grade, Glasgow Coma Scale and Injury Severity Score were collected. Results: During the study period, 17 054 blunt trauma patients were evaluated, and 29% (4923) underwent CTA of the neck to screen for BCVI. 191 BCVIs were identified in 160 patients (0.94% of all blunt trauma patients, 3.25% of patients screened with CTA). 16% (25 of 160) of patients with BCVI had none of the risk factors outlined in the Denver criteria. Conclusion: Our findings indicate that reliance on the expanded Denver criteria alone for BCVI screening will result in missed injuries. We recommend CTA screening in all patients with blunt trauma undergoing CT of the cervical spine and/or CTA of the chest to minimize this risk. Level of evidence: Level III, therapeutic/care management.

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Introduction and importance: Penetrating neck trauma is serious and has a high fatality rate, especially in individuals who suffer injuries to the common carotid artery. The mortality rates for penetrating neck trauma are estimated to be 3%-6%. Accidents that cause a lot of blood to flow, like being stabbed, shot, or hurt in a car accident, can cause a person to lose a lot of blood quickly and in a short amount of time, which can be fatal if not treated right away. Clinical presentation: we present a 26-year-old young male patient with penetrating neck trauma caused by a gunshot. The gunshot entered the right sternocleidomastoid muscle at the level of the hyoid bone and exited the left sternocleidomastoid muscle on the mid side. Clinical discussion: In a recent report on the management of major vascular injuries to the neck, carotid artery injuries accounted for about 17% of all patients presenting with penetrating neck injuries. In this case, previously published literature adds that carotid artery injury early surgical and primary repair in young patients has a good outcome. Conclusion: Considering the high morbidity and mortality associated with penetrating neck injuries, In young patients, they can be successfully managed with early surgical and primary repair with a good outcome.

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INTRODUCTION: The presence of an aberrant internal carotid artery (ICA) in the middle ear is rare. Patients may be asymptomatic or complain of conductive hearing loss, otalgia, pulsatile tinnitus, or aural fullness. Otoscopic exam findings can include a pulsating erythematous lesion on the tympanic membrane (TM). It may be misdiagnosed as a glomus tumor, hemangioma, or serous otitis media, or go unrecognized until surgical exploration. Early recognition is important as intraoperative discovery carries risk of iatrogenic injury, hemorrhage and subsequent neurologic sequelae. Prevention requires adequate preoperative suspicion and can be confirmed with radiologic examination via computed tomography (CT) scan or magnetic resonance angiography (MRA). Management of iatrogenic injury of an aberrant ICA can include packing, vessel embolization and/or surgical ligation. PATIENT CASE: We report the case of an aberrant ICA injury in a pediatric patient undergoing a myringotomy with tube placement, who sustained neurologic deficits that eventually resolved following treatment with packing and coil embolization. DISCUSSION AND CONCLUSIONS: An aberrant ICA can cause life-threatening complications without prior diagnosis in a routine myringotomy. Suspicious exam findings should prompt temporal bone CT to rule out aberrant ICA or other vascular pathology of the middle ear prior to surgery. In the case of iatrogenic injury of an aberrant ICA, there is no consensus in existing literature on optimal management. We reviewed 37 studies to compare therapeutic options and subsequent outcomes. Though complications are rare regardless of management, cases in which solely packing was utilized demonstrated an increased incidence of hemiparesis, aphasia, hearing loss, re-bleeding, and delayed pseudoaneurysm, as compared to an approach coupling packing with embolization or ligation, both of which have comparable outcomes.

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Resumo O carcinoma anaplásico da tireoide corresponde ao câncer de menor incidência e de pior prognóstico. Neste relato, descrevemos o caso de uma paciente de 64 anos submetida a tireoidectomia total associada a esvaziamento cervical nível VI devido a carcinoma papilífero de tireoide. No seguimento, apresentou sinais de recidiva regional e foi submetida a esvaziamento cervical ampliado e esofagectomia cervical. No intraoperatório, observou-se ausência de plano de clivagem entre o tumor e a artéria carótida comum (ACC) e procedeu-se com implante de shunt carotídeo, resseção em bloco incluindo segmento da ACC e do esôfago acometidos e ponte vascular com interposição da veia safena magna. Foi evidenciado carcinoma anaplásico em revisão de lâmina do exame anatomopatológico. A paciente foi submetida ao tratamento adjuvante e não apresenta sinais de recidiva locorregional. Diante da possibilidade de proceder uma cirurgia curativa com ressecção em bloco, o cirurgião vascular deve estar apto para as opções cirúrgicas.

Abstract Of all thyroid cancers, anaplastic thyroid carcinoma (ATC) has the lowest incidence and worst prognosis. In this report, we describe a 64-year-old female patient who underwent total thyroidectomy and level VI neck dissection for papillary thyroid carcinoma. During follow-up, she showed signs of regional recurrence and underwent extended neck dissection and cervical esophagectomy. Intraoperatively, there was no cleavage plane between the tumor and the common carotid artery (CCA), so a carotid shunt was implanted and en bloc resection, including the affected CCA and esophagus segments was performed followed by vascular bypass with interposition of a great saphenous vein graft. A pathology review found evidence of anaplastic carcinoma. The patient underwent adjuvant treatment and has no signs of locoregional recurrence. Presented with the possibility of carrying out curative surgery with en bloc resection, the vascular surgeon must be prepared for the surgical options.

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Carotid artery trauma carries a high risk of neurological sequelae and death. Surgical management of these injuries has been controversial because it entails deciding between repair or ligation of the vessel, for which there is still no true consensus either way. This article proposes a new management strategy for carotid artery injuries based on the principles of damage control surgery which include endovascular and/or traditional open repair techniques. The decision to operate immediately or to perform further imaging studies will depend on the patient's hemodynamic status. If the patient presents with massive bleeding, an expanding neck hematoma or refractory hypovolemic shock, urgent surgical intervention is indicated. An altered mental status upon arrival is a potentially poor prognosis marker and should be taken into account in the therapeutic decision-making. We describe a step-by-step algorithmic approach to these injuries, including open and endovascular techniques. In addition, conservative non-operative management has also been included as a potentially viable strategy in selected patients, which avoids unnecessary surgery in many cases.

El trauma de la arteria carótida tiene una alta probabilidad de muerte y de secuelas neurológicas. El manejo quirúrgico es objeto de controversia porque se tiene que decidir entre reparar la arteria carótida o ligarla, para lo cual aún no existe un consenso. El objetivo de este artículo es proponer una nueva estrategia de manejo para el trauma de la arteria carótida con los principios de la cirugía de control de daños y el uso de técnicas como el reparo endovascular o el manejo conservador. La decisión de operar el paciente inmediatamente o realizar estudios imagenológicos dependerá del estado hemodinámico del paciente. Si el paciente presenta sangrado masivo, hematoma expansivo o choque hipovolémico refractario, una intervención quirúrgica urgente esta indicada. Un déficit del estado neurológico al ingreso es un marcador de mal pronóstico en estos casos e influye en la toma de decisiones. Se describe el paso a paso del reparo vascular abierto y se incluye las estrategias de manejo tanto endovasculares como abiertas. Adicionalmente, el manejo conservador también ha sido incluido como una estrategia viable en pacientes seleccionados, evitando cirugías innecesarias.

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The present study aims to develop an integrative review about pseudoaneurysms after traumatic facial trauma, through the analysis of its etiology, type of fracture, signs and symptoms, time elapsed between the trauma and the exposure of signs and symptoms, and treatment performed in these cases. Furthermore into the report, there are 3 clinical cases that occurred in the Buccomaxillofacial Surgery and Traumatology service of Hospital da Restauração Recife/PE. The study was carried out in 2 phases, first, a digital research about post-traumatic craniofacial pseudoaneurysm was performed in the following databases "MEDLINE/PubMed," "Scielo" and "Scopus," in September 2019, with 5 articles being included. In the second, 3 cases of patients with high-impact facial trauma who developed pseudoaneurysm of the internal carotid artery were reported. The average age of the patients was 35.6 years, all patients were male (100%), the majority (60%) being victims of an automobile accident, 3 patients (60%) suffered craniofacial trauma and 2 (40%) had trauma only to the face, most of them had symptoms later on due to the trauma, in 80% of cases the therapy instituted was embolization. Cases of high-impact craniofacial traumas, which present epistaxis and/or ophthalmological alterations correlated to fractures, should be carefully evaluated, determining a better prognosis for the patient.