Idiopathic bilateral stenosis of the foramina of Monro treated using endoscopic foraminoplasty and septostomy

Kalhorn, Stephen P.; Strom, Russell G.; Harter, David H.

doi:10.3171/2011.1.focus10298

Cited by 26 publications

(21 citation statements)

References 25 publications

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“…Endoscopic procedures should be reserved in the presence of favourable anatomy 6. Otherwise cerebrospinal fluid shunting may represent a valid alternative in order both to avoid fornix damage and to avoid a second surgery in case of foraminoplasty failure.…”

Section: Discussionmentioning

confidence: 99%

Adult bilateral idiopathic occlusion of foramina of Monro: is foraminoplasty really safe and effective?

et al. 2018

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Idiopathic bilateral occlusion of foramina of Monro is an extremely rare condition in adults and only few cases are reported. Currently, foraminoplasty is indicated as first-line treatment. We reported the case of a 52-year-old woman who presented with headache, instability and urinary incontinence. The imaging demonstrated bilateral occlusion of foramina of Monro and consequent biventricular hydrocephalus. A ventriculo-peritoneal shunt allowed to treat the hydrocephalus, but it was necessary to remove it for the appearance of peritonitis from salpingitis. Since the initial symptomatology reappeared, according to the literature, we performed an endoscopic foraminoplasty with septostomy. The patient immediately developed short-term memory impairment and subsequently we observed the hydrocephalus recurrence. The positioning of a ventriculo-atrial shunt allowed to improve the symptoms, but the memory remained impaired. In case of bilateral true stenosis of foramina of Monro, foraminoplasty may lead to severe memory impairment. Therefore, cerebrospinal fluid shunting should be considered as an effective and safer treatment.

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Section: Discussionmentioning

confidence: 99%

Adult bilateral idiopathic occlusion of foramina of Monro: is foraminoplasty really safe and effective?

et al. 2018

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“…Idiopathic foramen of Monro obstruction may be caused by either stenosis or membranous obstruction (5,6) .…”

Section: Discussionmentioning

confidence: 99%

“…Few drops of blood are usually seen in such scenarios. The most important structure during this step is injury to the fornix (5) . In these cases, shunt insertion or septostomy by performing a septostomy and bilateral dilatation of foramina.…”

Section: Discussionmentioning

confidence: 99%

Bilateral Foraminal Stenosis in Patient with Dandy-Walker Malformation : Hiding Pathology

Ali

Al-Shami²,

Othman³

et al. 2018

Egyptian Journal of Hospital Medicine

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Background: Etiologies of hydrocephalus are many and sometimes it can be attributed to be multifactorial in origin. Presence of known cause of hydrocephalus like fourth ventricular pathology may mask foramenal stenosis. Diagnosis of unilateral and bilateral stenosis of foramen of Monro should be included in the treatment plan in hydrocephalus A case report of a 9 months-old boy presented with delayed milestones of development and an increase in head circumference. The patient has been diagnosed as hydrocephalus and associated Dandy-Walker malformation. Ventriculoperitoneal shunt was inserted successfully but drained only one lateral ventricle. The association of isolated lateral ventricle with Dandy-Walker malformation is due to stenosis of foramen of Monro. Our case report is unique due to association between foramen occlusion and Dandy-Walker malformation.

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“…Stenosis of the foramen of Monro has been attributed to infectious origins (particularly TORCH infections) causing inflammation and scarring in the region, congenital atresia, vascular malformations, and neoplastic processes [7]. Some of the masses most frequently encountered within the foramen of Monro include colloid cysts, subependymal giant cell tumors (SGCT) associated with tuberous sclerosis complex (TSC), and subependymal nodules and hamartomas [4].…”

Section: Pathologymentioning

confidence: 99%

“…This deep structure becomes clinically significant when obstructed and leads to obstructive (non-communicating) hydrocephalus. Etiologies of obstruction at the foramen of Monro include infections, congenital atresia, vascular malformations, and neoplastic processes [7]. Herein, we will review the historical discovery of the foramen of Monro, its development, the microsurgical and surface anatomy of the foramen, pathology in the region, and neurosurgical treatments for such pathology.…”

Section: Introductionmentioning

confidence: 99%

The foramen of Monro: a review of its anatomy, history, pathology, and surgery

et al. 2014

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Introduction The foramen of Monro lies at the junction between the paired lateral ventricles and the third ventricle of the brain. Methods A comprehensive review of the literature was performed focusing on the foramen of Monro. Conclusions A good understanding of the anatomy of the foramen of Monro is essential for the neurosurgeon, especially with the increasing use of intraventricular endoscopy.

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Idiopathic bilateral stenosis of the foramina of Monro treated using endoscopic foraminoplasty and septostomy

Cited by 26 publications

References 25 publications

Adult bilateral idiopathic occlusion of foramina of Monro: is foraminoplasty really safe and effective?

Adult bilateral idiopathic occlusion of foramina of Monro: is foraminoplasty really safe and effective?

Bilateral Foraminal Stenosis in Patient with Dandy-Walker Malformation : Hiding Pathology

The foramen of Monro: a review of its anatomy, history, pathology, and surgery

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