The Journal of emergency medicine · 2019
Utility of Shunt Series in the Evaluation of Ventriculoperitoneal Shunt Dysfunction in Adults.
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Docter Taylor A, Patel Bhavik H, Brennan Jesse J, Castillo Edward M, Lee Roland R, Vilke Gary M
Аннотация
BACKGROUND: When patients present to emergency departments (EDs) with symptoms suspicious for ventriculoperitoneal shunt malfunction, evaluation often includes imaging of the shunt with both computed tomography (CT) of the head without contrast and a plain radiograph "shunt series" (SS). Recent literature has called into question the diagnostic value of the SS for the detection of ventriculoperitoneal shunt complications, suggesting that the plain radiographs provide redundant information and unnecessary exposure to radiation.
OBJECTIVE: The aim of our study was to assess the frequency of abnormal SS plain radiography and head CT in the evaluation of shunt malfunction in all adult ED patients and to measure the association of abnormalities on CT and SS with surgical intervention.
METHODS: We performed a retrospective chart review of all emergency department encounters at an urban level I trauma center between August 1, 2013 and October 3, 2018 in which an SS and head CT examination were performed within 24 h of each other. We described the results of imaging studies qualitatively and descriptive statistics were performed.
RESULTS: Positive findings on CT were significantly associated with the decision to proceed to surgery. Positive findings on SS, however, were not significantly associated with the decision to proceed to surgery.
CONCLUSIONS: The potential information gained from SS and convenience of ordering simultaneously with head CT does not appear to outweigh the risk of increased radiation exposure to the patient, the additional costs of the study, and the potential delay in time to head CT. These findings support the initial use of head CT in evaluation of shunt malfunction.
OBJECTIVE: The aim of our study was to assess the frequency of abnormal SS plain radiography and head CT in the evaluation of shunt malfunction in all adult ED patients and to measure the association of abnormalities on CT and SS with surgical intervention.
METHODS: We performed a retrospective chart review of all emergency department encounters at an urban level I trauma center between August 1, 2013 and October 3, 2018 in which an SS and head CT examination were performed within 24 h of each other. We described the results of imaging studies qualitatively and descriptive statistics were performed.
RESULTS: Positive findings on CT were significantly associated with the decision to proceed to surgery. Positive findings on SS, however, were not significantly associated with the decision to proceed to surgery.
CONCLUSIONS: The potential information gained from SS and convenience of ordering simultaneously with head CT does not appear to outweigh the risk of increased radiation exposure to the patient, the additional costs of the study, and the potential delay in time to head CT. These findings support the initial use of head CT in evaluation of shunt malfunction.