Question 1763
{"accessible":false,"alternatives":[{"id":8760,"text":"depressed CBF and high oxygen extraction fraction"},{"id":8759,"text":"depressed CBF and low oxygen extraction fraction"},{"id":8756,"text":"elevated CBF and high oxygen extraction fraction"},{"id":8755,"text":"elevated CBF and low oxygen extraction fraction"}],"archived":false,"correctAlternativeId":8755,"explanation":"\u003cp\u003e\u003cstrong\u003eLuxury perfusion\u003c/strong\u003e describes the \"non-nutritional\" return of cerebral blood flow to normal or increased levels in regions of infarcted brain, usually in the subacute phase (e.g. \u0026gt;72 hours). This is believed to be due to failure of autoregulation. The hallmark is an excess of supplied blood to brain that has reduced metabolic requirement. As such this tissue will extract little oxygen.\u0026nbsp;\u003c/p\u003e","id":1763,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1783","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[{"id":766,"kind":"RestrictedPage","title":"Page 766 (in no courses)","link":"https://radiopaedia.org/admin/restricted_pages/766"},{"id":2103,"kind":"Course","title":"Stroke Learning Pathway - peer review - page 2103","link":"https://radiopaedia.org/courses/stroke-learning-pathway-peer-review/pages/2103"},{"id":2103,"kind":"Course","title":"Stroke Learning Pathway - page 2103","link":"https://radiopaedia.org/courses/stroke-learning-pathway/pages/2103"}],"stem":"\u003cp\u003eCerebral \"luxury perfusion\" is characterized by...\u0026nbsp;\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1763"}],"attemptsPercentages":[{"alternativeId":"8755","percentage":75},{"alternativeId":"8759","percentage":4},{"alternativeId":"8756","percentage":18},{"alternativeId":"8760","percentage":3}],"promptToLogin":false,"questionManager":false,"articleId":"luxury-perfusion"}