Pediatric hydrocephalus: systematic literature review and evidence-based guidelines. Part 3: Endoscopic computer-assisted electromagnetic navigation and ultrasonography as technical adjuvants for shunt placement

Abstract

Object: This systematic review was undertaken to answer the following question: Do technical adjuvants such as ventricular endoscopic placement, computer-assisted electromagnetic guidance, or ultrasound guidance improve ventricular shunt function and survival?

Methods: The US National Library of Medicine PubMed/MEDLINE database and the Cochrane Database of Systematic Reviews were queried using MeSH headings and key words specifically chosen to identify published articles detailing the use of cerebrospinal fluid shunts for the treatment of pediatric hydrocephalus. Articles meeting specific criteria that had been delineated a priori were then examined, and data were abstracted and compiled in evidentiary tables. These data were then analyzed by the Pediatric Hydrocephalus Systematic Review and Evidence-Based Guidelines Task Force to consider evidence-based treatment recommendations.

Results: The search yielded 163 abstracts, which were screened for potential relevance to the application of technical adjuvants in shunt placement. Fourteen articles were selected for full-text review. One additional article was selected during a review of literature citations. Eight of these articles were included in the final recommendations concerning the use of endoscopy, ultrasonography, and electromagnetic image guidance during shunt placement, whereas the remaining articles were excluded due to poor evidence or lack of relevance. The evidence included 1 Class I, 1 Class II, and 6 Class III papers. An evidentiary table of relevant articles was created. CONCLUSIONS/RECOMMENDATION: There is insufficient evidence to recommend the use of endoscopic guidance for routine ventricular catheter placement.

Strength of recommendation: Level I, high degree of clinical certainty.

Recommendation: The routine use of ultrasound-assisted catheter placement is an option.

Strength of recommendation: Level III, unclear clinical certainty.

Recommendation: The routine use of computer-assisted electromagnetic (EM) navigation is an option.

Strength of recommendation: Level III, unclear clinical certainty.

Keywords: AANS = American Association of Neurological Surgeons; CNS = Congress of Neurological Surgeons; EM = electromagnetic; ETV = endoscopic third ventriculostomy; cerebrospinal fluid shunt; computer-assisted navigation; electromagnetic guidance; endoscopy; hydrocephalus; image-guided navigation; practice guidelines; ultrasonography; ventricular catheter; ventricular shunt.