Persistent Sciatic Artery with Monoplegia in Right Lower Leg Without Vascular Complication Symptoms in an Obese Woman

Aneurisma de la arteria ciática persistente con isquemia secundaria de la extremidad, revisión de la literatura y reporte de un caso

“…Los casos de arteria ciática persistente asintomática no requieren tratamiento invasivo, sólo seguimiento clínico 3,11,16 . Cuando se presenta un aneurisma de la arteria ciática persistente, el manejo depende de la funcionalidad de la arteria femoral superficial.…”

“…Se origina en la arteria umbilical y es la principal fuente de aporte sanguíneo a la extremidad inferior durante las primeras semanas de gestación hasta su regresión, cuando aparece la arteria femoral superficial 1,2 . La arteria ciática persistente es una anomalía congénita poco frecuente que puede cursar asintomática o manifestarse como una masa pulsátil en el glúteo, por isquemia aguda de la extremidad, o con un dolor ciático con radiculopatía o sin ella 3 . Frecuentemente, desarrolla degeneración aneurismática 4 y presenta complicaciones relacionadas con el aneurisma (trombosis, ruptura o embolia distal) 5 , como en el presente caso.…”

From diagnosis to treatment of persistent sciatic artery: a revised review of the literature

“…In general, the definite diagnosis is made by two or more diagnostic tools (Doppler USG + CT angiography, Doppler USG + MRI, DSA + Doppler USG, CT + Conventional angiography), as reported in the literature. [15,19,20,29] The MRI two-dimensional (2D) time of flight (TOF) and 3D gadolinium-enhanced magnetic resonance angiography) may also offer invaluable data in PSA patients with renal failure, in particular. [13] Also, 2D-TOF may provide diagnosis of false-positive stenosis or occlusion in areas with slow flow or turbulence.…”

“…However, neurological complications such as drop foot may be irreversible and sciatic and radicular nerve pain may remain as chronic pain. [29,30] Asymptomatic PSA patients during follow-up should be made aware that they may be open to complications. In a report, one such asymptomatic patient died in the follow-up period due to massive bleeding from the sciatic artery, while another patient exhibited PSA thrombosis as a complication after an accident.…”

An artery accompanying the sciatic nerve (arteria comitans nervi ischiadici) and the position of the hip joint: a comparative histological study using chick, mouse, and human foetal specimens

“…Despite this suggested lengthening of the nerve course in foetuses, many dissection studies have indicated the presence of an artery accompanying the adult sciatic nerve (arteria comitans nervi ischiadici) [1,5,7,8,14,15,21,33,36,37,40]. Moreover, vascular surgeons have recently drawn attention to aneurysms of this accompanying artery as a cause of leg pain or paralysis, such reports [6,18,22,25,34] having increased significantly in number since the year 2000. Kawashima and Sasaki [17] considered that most of these reported arteries were not a true remnant of the primitive sciatic artery, but rather a secondarily developed collateral branch, because of its course running posterior to the sciatic nerve.…”