The Persistent Sciatic Artery

Hooft, I. M. van; Zeebregts, Clark J.; Sterkenburg, Steven M.M. van; Vries, W. R. de; Reijnen, Michel M.P.J.

doi:10.1016/j.ejvs.2009.01.014

Cited by 158 publications

(202 citation statements)

References 66 publications

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“…a persistent sciatic artery is a vascular anomaly in which the sciatic artery, which involutes and disappears in the embryonic stage, persists. according to a report by van Hooft et al [1,2] 70 % of the reported cases was unilateral and 30 % was bilateral. aneurysm formation was observed in 40-50 % of the reported cases.…”

Section: Discussionmentioning

confidence: 99%

A persistent sciatic artery aneurysm containing a free-floating thrombus: report of a case

2014

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A persistent sciatic artery is a rare vascular anomaly in which the sciatic artery, which involutes in the embryonic stage, persists as the blood supply to the lower limb. This vascular anomaly is often associated with aneurysm formation. A persistent sciatic artery aneurysm is a rare cause of peripheral arterial embolic disease. We herein describe the case of a 72-year-old female with a free-floating thrombus in a persistent sciatic artery aneurysm. She underwent iliac-popliteal artery bypass and exclusion of the aneurysm to prevent an embolic event.

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Section: Discussionmentioning

confidence: 99%

A persistent sciatic artery aneurysm containing a free-floating thrombus: report of a case

2014

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“…Persistent sciatic arteries (PSA) are a very rare congenital abnormality, with an incidence estimated to be in the region of 0.03%-0.06% [2] . It occurs due to failure of involution of the sciatic artery, and failure of the superficial femoral artery to develop.…”

Section: Discussionmentioning

confidence: 99%

“…These arteries may be termed "complete" when it forms the main blood supply to the lower leg (as in the majority), or incomplete when the superficial femoral artery is the main provider of blood to the popliteal artery [2] . Four different types of PSA have been described.…”

Section: Discussionmentioning

confidence: 99%

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Incidental finding of a persistent sciatic artery aneurysm

Nightingale¹,

Sahnan²,

Qazi

et al. 2014

CRIM

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A 78 year old Afro Caribbean male, presented via accident & emergency following a mechanical fall. Work-up investigations revealed an incidental 6.2 cm persistent sciatic artery aneurysm.Following discussion with the vascular surgeons, lower limb angiography and a lower limb arterial duplex were performed. This demonstrated the true morphology of the persistent sciatic artery where it was shown to be the dominant blood supply to the leg; the superficial femoral artery in comparison was small and petered distally.Treatment options were considered including embolization of the aneurysm and endovascular repair with a covered stent. Both options were considered too high risk for compromising the blood supply to the entire leg and the patient was managed conservatively.A persistent sciatic artery (PSA) is a congenital anomaly, with an incidence estimated to be in the region of 0.03%-0.06%. 5 Persistence of the embryological sciatic artery is rare and any patient with a PSA must be managed uniquely and in a considered manner. This case demonstrates the clinical significance of this anatomical variation and the potential pitfalls of treatment without adequate imaging of the lower limb. Patients with a patent sciatic artery are more prone to atherosclerotic degeneration and aneurysm formation, and this occurs in up to 44% [1] . Lack of recognition that the main blood supply to the lower leg is from a PSA may lead to inappropriate bypass grafting for what appears otherwise to be an occluded superficial femoral artery.

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“…A PSA is a remnant of the embryological vessel that serves as the main blood supply to the lower limb during early fetal development (5). The persistent vessel is a direct continuation of the iliac artery to the popliteal artery and is classified in complete and incomplete types.…”

Section: Congenital Anatomical Variation Persistent Sciatic Artery (Psa)mentioning

confidence: 99%

Peripheral Non-atherosclerotic Arterial Disorders

2017

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The Persistent Sciatic Artery

Abstract: The PSA is a rare anomaly with a high incidence of complications including aneurysm formation and ischaemia that may lead to amputation. Strategies for follow-up could not be deduced from the available literature.

Cited by 158 publications

References 66 publications

A persistent sciatic artery aneurysm containing a free-floating thrombus: report of a case

A persistent sciatic artery aneurysm containing a free-floating thrombus: report of a case

Incidental finding of a persistent sciatic artery aneurysm

Peripheral Non-atherosclerotic Arterial Disorders

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