Unusual renal vascular supply.
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Biomedical subjects
Publications and source records attributed to Y Ben-Menachem.
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Two patients with compound arteriovenous fistulae, in whom transarterial embolizations failed, were managed by embolization of the arterial tributaries of their fistulae from retrograde, transvenous access. Transvenous embolizations were successful in both patients. Given multiple arterial tributaries, and large communicating hematomas into which these arteries bleed, transvenous access may be a useful approach for embolizing compound traumatic arteriovenous fistulae.
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Injuries of the vertebral arteries in four patients were treated by transcatheter embolization. Embolotherapy was performed after incomplete or unsuccessful surgery in three of the patients and as a preventive measure in lieu of surgery in the fourth patient. All procedures were successful and without complications. An injured vertebral artery is usually extremely difficult to approach surgically, but because of extensive collateral blood supply it is usually expendable; therefore, it becomes an inviting target for management by interventional angiographic techniques. Embolotherapy of an injured vertebral artery is easier, faster, and safer than its surgical ligation and, therefore, decidedly superior. With few exceptions, embolotherapy should be considered the preferred method in the management of vertebral artery trauma.
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