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Year : 2016  |  Volume : 11  |  Issue : 3  |  Page : 268-272

Trans aqueductal, third ventricle – Cervical subarachnoid stenting: An adjuvant cerebro spinal fluid diversion procedure in midline posterior fossa tumors with hydrocephalus: The technical note and case series

Department of Neurosurgery, Alluri Sita Ramaraju Academy of Medical Sciences Hospital, Eluru, West Godavari, Andhra Pradesh, India

Correspondence Address:
Prof. Ramesh Teegala
Department of Neurosurgery, Alluri Sita Ramaraju Academy of Medical Sciences Hospital, Eluru, West Godavari - 534 004, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1793-5482.145369

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Background: Persistent or progressive hydrocephalus is one of the complex problems of posterior fossa tumors associated with hydrocephalus. The author evaluated the effectiveness of single-stage tumor decompression associated with a stent technique (trans aqueductal third ventricle – Cervical subarachnoid stenting) as an adjuvant cerebro spinal fluid (CSF) diversion procedure in controlling the midline posterior fossa tumors with hydrocephalus. Materials and Methods: Prospective clinical case series of 15 patients was evaluated from July 2006 to April 2012. Fifteen clinicoradiological diagnosed cases of midline posterior fossa tumors with hydrocephalus were included in this study. All the tumors were approached through the cerebello medullary (telo velo tonsilar) fissure technique. Following the excision of the posterior fossa tumor, a sizable stent was placed across the aqueduct from the third ventricle to the cervical subarachnoid space. Results: There were nine male and six female patients with an average age of 23 years. Complete tumor excision could be achieved in 12 patients and subtotal excision with clearance of aqueduct in remaining three patients. Hydrocephalus was controlled effectively in all the patients. There were no stent-related complications. Conclusions: This study showed the reliability of single-stage tumor excision followed by placement of aqueductal stent. The success rate of this technique is comparable to those of conventional CSF diversion procedures. This is a simple, safe, and effective procedure for the management of persistent and or progressive hydrocephalus. This technique may be very useful in situations where the patient's follow-up is compromised and the patients who are from a poor economic background. Long-term results need further evaluation to assess the overall functioning of this stent technique.

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