Prevalence and Impact of the Subclavian Steal Syndrome

Abstract

SSS is a frequent finding in patients undergoing carotid duplex scanning. Patients are commonly asymptomatic and rarely require an intervention. A significantly elevated arm PD (>40-50 mm Hg) is more commonly associated with symptoms, complete steal, and the need for intervention.

Pearls & Oy-sters: Symptomatic innominate artery disease

“…SSP is generally associated with subclavian artery stenosis, and is usually caused by atherosclerosis, though it has also been associated with Takayasu arteritis. 1 Although SSP is somewhat common, most patients are essentially asymptomatic, 2 and the phenomenon may be considered a marker of generalized atherosclerosis. 3 Symptomatic disease (SSS) has been associated with higher arm blood pressure differentials.…”

“…3 Symptomatic disease (SSS) has been associated with higher arm blood pressure differentials. 2 In symptomatic disease, clinical presentation may involve upper limb claudication and transient symptoms related to the posterior circulation (ataxia, vertigo, diplopia, syncope). Neurologic symptoms may occur at rest or be elicited by ipsilateral arm exertion.…”

A case of acquired right-sided subclavian steal syndrome successfully treated with stenting using brachial approach

“…The acquired subclavian steal syndrome is mostly leftsided with Labropoulos et al reporting 82.3% of their cases [14]. Shillinger et al, Staikov et al and de Vries et al in their studies showed that the subclavian obstructive lesions are mostly located in the proximal segment of the subclavian artery, proximal to the origin of the vertebral artery and predominantly on the left side [11,15,16].…”

Taquicardia persistente en mujer joven deportista

“…Labropoulos et al, estudiaron a pacientes que tenían una diferencia interbraquial ≥ 20 mmHg con EcoDoppler carotídeo y hallaron que sólo un 7,4% de és-tos era sintomáticos y que había una relación directa entre la magnitud de la diferencia interbraquial de presión arterial y el porcentaje de pacientes sintomáticos. En el 82,3% de los casos el robo se producía en la circulación izquierda 11 . Por otra parte, la gran gama de síntomas visuales presentes en esta enfermedad pueden deberse al mismo compromiso de vasos retinianos con dilatación y tortuosidad venosa asociado a microaneurismas y shunts arteriovenosos, secundarios a la vasculitis e isquemia, produciendo glaucoma, uveítis, dolor retroorbitario, desprendimiento de retina, hemorragia vítrea y atrofia de nervio óptico 12 .…”