{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,15]],"date-time":"2025-08-15T02:57:38Z","timestamp":1755226658771,"version":"3.43.0"},"reference-count":47,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,9,1]]},"abstract":"<jats:sec>\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>The migration of distal catheter after ventriculoperitoneal shunt placement is a rare but significant complication. Especially in a case of cardiac migration, open-heart surgery or catheter intervention may be required. The authors encountered a case of cardiac migration that fortunately could be treated by withdrawal. A systematic review of cardiac migration was performed to clarify when and how migration was diagnosed and why invasive treatments were required. Based on the collected cases, a Weibull analysis of the latency until diagnosis was performed to examine whether cardiac migration is caused by an initial factor and to compare the result with the other migration sites such as gastrointestinal tract or urinary tract.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>A qualitative systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. A database of case reports was created by searching PubMed and Scopus with the keywords \"ventriculoperitoneal AND shunt AND migration\" (last search date: April 2022). Whether the occurrence rate of migration is constant over time was examined by fitting a Weibull distribution.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>A total of 339 articles of all migration sites were identified. Among them, 36 articles reporting 38 cases of cardiac migration were considered eligible. A total of 39 cases including the authors\u2019 case were reviewed qualitatively. When classifying the cases by their latency to diagnosis, the rates of pulmonary thrombosis and of cardiac adhesion were higher in the delayed group (\u2265 1 year) than in the early group (\u2264 1 month). The rate of open chest surgery was higher in the delayed, intermediate, and early groups, in that order. In the Weibull analysis, the shape parameter (\u03b2) was less than 1, indicating that the occurrence rate of cardiac migration was initially high, followed by a decline. The finding supports the hypothesis that migration results from an intraoperative vascular injury. Note that these findings are subject to bias given that they are derived from case reports.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CONCLUSIONS<\/jats:title>\n<jats:p>In light of the previous reports, the latency until diagnosis of cardiac migration was associated with the rate of thrombosis and adhesion, which resulted in escalation to invasive treatment. Early diagnosis will prevent invasive treatment because most cases are caused by initial factors, as the Weibull analysis showed.<\/jats:p>\n<\/jats:sec>","DOI":"10.3171\/2024.5.jns232830","type":"journal-article","created":{"date-parts":[[2024,9,21]],"date-time":"2024-09-21T01:33:29Z","timestamp":1726882409000},"page":"1-10","source":"Crossref","is-referenced-by-count":0,"title":["Early diagnosis to avoid invasive treatment in cardiac migration of a ventriculoperitoneal catheter: a qualitative systematic review and Weibull analysis of case reports"],"prefix":"10.3171","author":[{"given":"Takuro","family":"Nakae","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto City, Kyoto; and"},{"name":"Department of Neurosurgery, Shiga General Hospital, Moriyama City, Shiga, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masato","family":"Hojo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Shiga General Hospital, Moriyama City, Shiga, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiki","family":"Arakawa","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto City, Kyoto; and"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","article-title":"A Statistical Theory of the Strength of Materials","author":"Weibull W","year":"1939","unstructured":"Weibull W. 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