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The role of endolymphatic sac surgery in the management of secondary endolymphatic hydrops associated with perilymphatic fistulas: preliminary observations.

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The evidence for the existence of secondary endolymphatic hydrops in patients with perilymphatic fistulas is reviewed and the indications for treatment of such hydrops in patients with fistulas are discussed. The indications for and results of combined fistula repair by middle ear exploration and

Tinnitus: Report of Ten Cases of Perilymphatic Fistula and/or Endolymphatic Hydrops Improved by Surgery.

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Presented are ten cases of patients with perilymphatic fistula and/or endolymphatic hydrops who had tinnitus as a major complaint. Tinnitus and its degree of severity often correlate closely with the state of health or hydrodynamic integrity of the inner ear, as these cases illustrate.

Resolution of Brainstem Edema after Neurosurgical Occlusion of Dural Arteriovenous Fistulas of the Craniocervical Junction: Report of Three Cases and Review.

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Dural arteriovenous fistulas of the craniocervical junction are rare but the most dangerous of spinal fistulas. The concurrent brainstem edema has been attributed to increased pressure within the venous outflow of the brainstem and upper cord, but the differential diagnosis of

Hydrops following perilymph fistula repair.

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A series of 15 ears were explored for perilymph fistulas. Fifteen fistulas were found in 13 ears. Two cases are presented which developed hydrops-like symptoms only after closure of their fistulas. Closure of the other patients' fistulas was successful in relieving vertiginous symptoms, although

Spinal dural fistulas without swelling and edema of the cord as incidental findings.

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CONCLUSIONS SDAVFs cause hypertension and hence outflow obstruction in the perimedullary venous system resulting in swelling and edema of the cord followed by dysfunction. Clinical presentation is usually with gradual progressive paraparesis, numbness, and sphincter problems. MR imaging typically

TREATMENT OF RETINOPATHY AND MACULAR EDEMA SECONDARY TO A CAROTID-CAVERNOUS FISTULA.

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OBJECTIVE To present a case report on a patient with retinal complications from a carotid-cavernous fistula. METHODS Observational case report. RESULTS A 26-year-old patient sustained head trauma following a motorcycle accident. Examination and retinal imaging demonstrated a venous stasis

Association of pial venous reflux with hemorrhage or edema in dural arteriovenous fistula.

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OBJECTIVE We investigated whether pial venous reflux (PVR) is associated with hemorrhage or edema in dural arteriovenous fistula (DAVF). METHODS We evaluated the association of hemorrhage or edema with the occurrence of PVR or cortical venous reflux (CVR) in 222 patients with DAVF. We determined

Extensive basal ganglia edema caused by a traumatic carotid-cavernous fistula: a rare presentation related to a basal vein of Rosenthal anatomical variation.

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The authors report a very rare presentation of traumatic carotid-cavernous fistula (CCF) with extensive edema of the basal ganglia and brainstem because of an anatomical variation of the basal vein of Rosenthal (BVR). A 45-year-old woman was admitted to the authors' institution for left hemiparesis,

Low-frequency modulation of compound action potential in experimental perilymphatic fistula and endolymphatic hydrops.

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We have tested the hypothesis that the cause of cochlear dysfunction associated with perilymphatic fistula (PLF) is closely related to endolymphatic hydrops (ELH). Using guinea pigs, we studied the tone-burst elicited compound action potential (CAP) and its modulation as caused by a 50 Hz biasing

A case of unilateral leg edema due to abdominal aortic aneurysm with aortocaval fistula.

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Aortocaval fistula (ACF) is a rare complication of abdominal aortic aneurysm (AAA), and its preoperative diagnosis is often difficult. A 71-year-old woman was admitted to our hospital due to unilateral leg edema. Abdominal computed tomography (CT) showed an abdominal aortic aneurysm (AAA), a common

Ipsilateral intracranial edema associated with drainage patterns of dural arteriovenous fistula.

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BACKGROUND Massive ipsilateral edema in patients with cerebral dural arteriovenous fistula (DAVF) is poorly documented. The present study better characterizes this condition through assessment of venous anatomy and potential underlying mechanisms. METHODS One hundred and two consecutive patients

Brainstem edema caused by traumatic carotid-cavernous fistula: A case report and review of the literature.

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Brainstem edema caused by traumatic carotid-cavernous fistula (TCCF) is rare, and there is little information available regarding its clinical characteristics. The present report describes the case of a 51-year-old man with TCCF, who presented with right exophthalmos and intracranial bruit for 1

Intracranial pial single-channel arteriovenous fistula presenting with significant brain edema.

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The authors report a rare case of pial single-channel arteriovenous fistula presenting with significant brain edema. A 51-year-old woman was admitted with a 5-day history of headache and nausea, followed by consciousness disturbance. Computed tomography showed cerebellar swelling with obstructive

Endolymphatic hydrops in perilymphatic fistula.

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Cochlear hydrops was produced either by injecting artificial perilymph into the subarachnoid space or by sucking perilymph through the round window membrane. The animals were either vitally fixed immediately or kept alive for 1 to 3 months before fixation. Conventional celloidin embedding method was

Effects of endolymphatic-perilymphatic fistula on endolymphatic hydrops in guinea pig.

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The endolymphatic-perilymphatic shunt operation between the scala media and scala tympani was performed in 22 guinea pigs with endolymphatic hydrops induced by the silver nitrate injection method 2 months before the operation. Two (n = 10), 7 (n = 6), and 28 (n = 6) days after the operation, the

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