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  • The Fate of the Failed Endoscopic Third Ventriculostomy

    Final Number:
    1449

    Authors:
    Walter Grand MD; Cletus Cheyuo MD, PhD; Jody Leonardo MD

    Study Design:
    Other

    Subject Category:

    Meeting: Congress of Neurological Surgeons 2015 Annual Meeting

    Introduction: Even though endoscopic third ventriculostomy (ETV) has been established as an effective treatment for hydrocephalus, the outcomes of patients with a failed ETV remain unknown.

    Methods: We retrospectively reviewed the medical records of 211 patients from an institutional database of adult patients who underwent ETV from the year 2000 to 2014. We identified 76 patients (36%) with failed ETV. Our criteria for a failed ETV included recurrence of symptoms back to baseline or worse and the requirement of additional cerebrospinal fluid diversion procedures after ETV. The demographics, clinical presentation, surgical treatment and outcomes of the patients with failed ETV were reviewed.

    Results: The patients with failed ETV (male: female ratio 1: 1) were aged 24-83 years (average age – 57.7 years). Preoperative symptoms included 57.9% gait imbalance, 44.7% memory loss, urinary incontinence 38.2% and headaches 28.9%. The opening pressures at ETV ranged from 3 to 19 cm H2O. Following ETV, the rate of symptomatic recurrence included; 45.6% gait imbalance, 32.5% memory loss and 35.5% urinary incontinence. Patients showing no improvement in symptoms after ETV included 34.7% with gait imbalance, 40% memory loss, 45.2% urinary incontinence. Worsening of symptoms following ETV occurred in 19.6% of patients with gait imbalance, 27.5% with memory loss and 19.4% with urinary incontinence. 71% of the patients with failed ETV underwent ventriculoperitoneal shunting, with 72.2% success rate and 20.4% complication rate. Four patients with failed ETV underwent redo-ETV with a success rate of 75%, while 6 patients underwent re-exploration of the third ventricle and were found to have a patent stoma. Seven patients underwent no further surgical intervention and 3 patients are pending further evaluation.

    Conclusions: Ventriculoperitoneal shunting and redo-ETV are effective options for treating a failed ETV.

    Patient Care: It will define treatment options after a failed ETV

    Learning Objectives: To determine the long-term outcomes of hydrocephalus patients with a failed ETV.

    References: 1.Fabiano AJ, Doyle K, Grand W. Delayed Stoma Failure in Adult Communicating Hydrocephalus After Initial Successful Treatment by Endoscopic Third Ventriculostomy: Case Report. Neurosurgery. 2010 Jun; 66(6):E1210-1 2. Fukuhara T, Luciano MG, Kowalski RJ. Clinical Features of Third Ventriculostomy Failures Classified by Fenestration Patency. Surg Neurol. 2002 Aug;58(2):102-10. 3. Surash S, Chumas P, Bhargava D, Crimmins D, Straiton J, Tyagi A. A retrospective analysis of revision endoscopic third ventriculostomy. Childs Nerv Syst. 2010 Dec;26(12):1693-8.

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