Common Carotid Artery – ABC CARDIOL

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Incidental Diagnosis of Carotid Body Paraganglioma

Paragangliomas are rare benign neuroendocrine tumors of extra-adrenal location, but a small proportion may have a clinical malignant behavior and metastasize. In the neck, they usually affect the carotid body and are inactive in the secretion of catecholamines. These tumors are often asymptomatic but may present as a pulsatile cervical mass or cause compression in adjacent structures. Surgical excision is the only potentially curative treatment since histological evaluations may be limited to provide a definitive diagnosis of malignancy. Late recurrence can occur. Here we present the case of a 56-year-old asymptomatic woman who underwent carotid ultrasound to screen for atherosclerotic disease in whom a vascularized well-defined hypoechoic mass was incidentally noted in the carotid bifurcation (). Contrast computed tomography confirmed findings compatible with paraganglioma (). The patient underwent surgery and the diagnosis was confirmed.

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Increased intima-media thickness is independently associated with Ischemic Stroke

Dário Freitas et al. Ana Alves Alexandre Pereira Telmo Pereira

BACKGROUND: Stroke is one of the major causes of death worldwide. The importance of increased intima-media thickness in cardiovascular risk stratification has been recurrently studied. The relationship between them, however, is still controversial. OBJECTIVES: To determine whether increased common carotid artery (CCA) intima-media thickness can be used as an independent high-risk marker for the occurrence of stroke. METHODS: This study sample comprised 948 patients consecutively assessed by use of cervical triplex scan from January 2004 to June 2009. Those patients were divided into groups according to the presence or absence of recent stroke as follows: a group of patients with ischemic stroke (n = 452, 48%); a group of patients with hemorrhagic stroke (n = 22, 2%); and a group of patients with no events (n = 474, 50%). RESULTS: On logistic regression analysis adjusted for the classic cardiovascular risk factors, increased CCA intima-media thickness associated significantly and on an approximately linear way with ischemic stroke (Odds Ratio = 1.808, confidence interval: 1.291-2.534, p = 0.01), but not with hemorrhagic stroke (p = ns). A significant interaction with age was also found, showing a greater discriminative capacity for the risk of ischemic stroke in individuals aged less than 50 years. CONCLUSIONS: The increased CCA intima-media thickness was identified as an independent predictor of the risk for ischemic stroke, but not for hemorrhagic stroke, emphasizing the usefulness of its assessment on clinical practice. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0)

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Original Article

Association between coronary artery atherosclerosis and the intima-media thickness of the common carotid artery measured on ultrasonography

Eduardo Maffini da Rosa et al. Caroline Kramer Iran Castro

OBJECTIVE: To assess whether the intima-media thickness of the common carotid artery of patients with coronary artery disease is greater than that of individuals without that disease. METHODS: Case-control prospective study of prevalence assessing the thickness of the intima and media layers of 29 patients with coronary artery disease and 29 individuals without that disease by using ultrasonography of the carotid arteries. Diabetic patients and those with peripheral artery and cerebral vasculopathies were excluded from the study. RESULTS: The mean age was 51±7.5 years. Fifty-five per cent of the patients were males. Acute myocardial infarction was present in 62%; cardiac catheterization in 72%; saphenous bypass in 5%; and coronary angioplasty in 24%. The intima-media thickness of the common carotid artery in case patients and in control patients was, respectively, 0.81±0.25 mm and 0.62±0.18 mm (P=0.001). CONCLUSION: Intima-media thickness of the common carotid artery was significantly greater in patients with coronary artery disease.

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Incidental Diagnosis of Carotid Body Paraganglioma

Increased intima-media thickness is independently associated with Ischemic Stroke

Association between coronary artery atherosclerosis and the intima-media thickness of the common carotid artery measured on ultrasonography

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Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)