Aortic Dissection Detection Risk Score Plus D-dimer in Suspected Acute Aortic Dissection

2014-09-30 16:38:22 | BioPortfolio


Acute aortic dissection (AD) is a deadly, difficult to diagnose disease presenting with an array of common and unspecific symptoms. Aortic dissection detection (ADD) risk score as a bedside clinical tool to estimate the risk of AD. D-dimer has been evaluated in several studies as a biomarker of AD, and has showed a pooled diagnostic sensitivity of 97%. However, considering the severe morbidity and mortality of AD, a negative D-dimer per se is considered insufficient to rule-out AD in unselected patients.

The aim of the present study is to evaluate whether the diagnostic performance of D-dimer differs in patients at different clinical risk of AD, and in particular whether a negative D-dimer test may allow safe rule-out of AD in any patient subgroup without necessity to perform urgent aortic imaging.

Consecutive adult patients with suspected AD presenting to ED will be enrolled before the establishment of a final diagnosis; a standardized clinical form comprehensive of presence/absence of 12 risk markers allowing ADD risk score fulfilled and d-dimer levels measured at presentation.

The aortic imaging exam used to confirm or refuse of AD will be computed tomography angiography or transesophageal echocardiography and final diagnosis established after reviewing of all available data.

The accuracy, failure rate and efficiency of a diagnostic strategy combining standardized clinical stratification via the ADD risk score with D-dimer testing will therefore be assessed.

Study Design

Observational Model: Cohort, Time Perspective: Prospective


Aortic Dissection


Emergency Department. Brigham and Women's Hospital
United States




Azienda Ospedaliero-Universitaria Careggi

Results (where available)

View Results


Published on BioPortfolio: 2014-09-30T16:38:22-0400

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Medical and Biotech [MESH] Definitions

Dissection in the neck to remove all disease tissues including cervical LYMPH NODES and to leave an adequate margin of normal tissue. This type of surgery is usually used in tumors or cervical metastases in the head and neck. The prototype of neck dissection is the radical neck dissection described by Crile in 1906.

Ischemia or infarction of the spinal cord in the distribution of the anterior spinal artery, which supplies the ventral two-thirds of the spinal cord. This condition is usually associated with ATHEROSCLEROSIS of the aorta and may result from dissection of an AORTIC ANEURYSM or rarely dissection of the anterior spinal artery. Clinical features include weakness and loss of pain and temperature sensation below the level of injury, with relative sparing of position and vibratory sensation. (From Adams et al., Principles of Neurology, 6th ed, pp1249-50)

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Small masses of chromaffin cells found near the SYMPATHETIC GANGLIA along the ABDOMINAL AORTA, beginning cranial to the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) or renal arteries and extending to the level of the aortic bifurcation or just beyond. They are also called the organs of Zuckerkandl and sometimes called aortic bodies (not to be confused with AORTIC BODIES in the THORAX). The para-aortic bodies are the dominant source of CATECHOLAMINES in the FETUS and normally regress after BIRTH.

Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).

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