{"id":5450,"date":"2025-12-09T13:23:33","date_gmt":"2025-12-09T18:23:33","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/?post_type=chapter&#038;p=5450"},"modified":"2025-12-09T23:17:21","modified_gmt":"2025-12-10T04:17:21","slug":"criteria-for-brain-death","status":"web-only","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/chapter\/criteria-for-brain-death\/","title":{"raw":"11p7  Criteria for Brain Death","rendered":"11p7  Criteria for Brain Death"},"content":{"raw":"<h1><strong>Overview<\/strong><\/h1>\r\n<ul>\r\n \t<li>Brain death refers to the\u00a0<strong>complete and irreversible loss<\/strong>\u00a0of brain function.<\/li>\r\n \t<li>Can be diagnosed even if other vital functions (heart, lungs) are maintained artificially.<\/li>\r\n<\/ul>\r\n<h1><strong>Diagnostic Criteria<\/strong><\/h1>\r\n<ol>\r\n \t<li><strong>Cessation of Brain Function<\/strong><\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>No neuronal activity detectable.<\/li>\r\n \t<li>Confirmed via:\r\n<ul>\r\n \t<li><strong>Imaging techniques<\/strong>\u00a0(e.g., EEG, CT, MRI).<\/li>\r\n \t<li><strong>Absence<\/strong>\u00a0of brainstem reflex responses:\r\n<ul>\r\n \t<li>Pupillary reflex.<\/li>\r\n \t<li>Gag reflex.<\/li>\r\n \t<li>Corneal reflex.<\/li>\r\n \t<li>Oculocephalic reflex (doll\u2019s eyes).<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li>No spontaneous\u00a0<strong>respiratory effort<\/strong>:\r\n<ul>\r\n \t<li>Tested by\u00a0<strong>removing<\/strong>\u00a0ventilator support.<\/li>\r\n \t<li>Absence of\u00a0<strong>breathing<\/strong>\u00a0indicates brainstem failure.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<ol start=\"2\">\r\n \t<li><strong>Cause of Brain Dysfunction<\/strong><\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>Must be\u00a0<strong>completely irreversible<\/strong>.<\/li>\r\n \t<li>Caused by\u00a0<strong>trauma, stroke, tumor, or hypoxia<\/strong>\u00a0that has caused\u00a0<strong>extensive brain damage<\/strong>.<\/li>\r\n \t<li>The cause is thoroughly\u00a0<strong>evaluated<\/strong>\u00a0before confirming brain death.<\/li>\r\n<\/ul>\r\n<ol start=\"3\">\r\n \t<li><strong>Confirmation<\/strong><\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li>Typically, the diagnosis is made\u00a0<strong>twice<\/strong>\u00a0by\u00a0<strong>different physicians<\/strong>.<\/li>\r\n \t<li>Ensures\u00a0<strong>accuracy<\/strong>\u00a0and\u00a0<strong>avoids false diagnosis<\/strong>.<\/li>\r\n<\/ul>\r\n<strong>Additional Considerations<\/strong>\r\n<ul>\r\n \t<li>The\u00a0<strong>clinical picture<\/strong>\u00a0must be consistent.<\/li>\r\n \t<li>No possibility of\u00a0<strong>neurological recovery<\/strong>.<\/li>\r\n \t<li>Does not include <strong>coma<\/strong> or <strong>unresponsive wakefulness syndrome<\/strong>, which are potentially reversible.<\/li>\r\n<\/ul>\r\n<h1><strong>Summary<\/strong><\/h1>\r\n<ul>\r\n \t<li>Brain death criteria involve\u00a0<strong>loss of all brain functions<\/strong>\u00a0and confirmatory testing.<\/li>\r\n \t<li>Once confirmed,\u00a0<strong>organ donation<\/strong>\u00a0and ethical considerations may follow.<\/li>\r\n \t<li>It remains a\u00a0<strong>legal and medical standard<\/strong>\u00a0for declaring death.<\/li>\r\n<\/ul>","rendered":"<h1><strong>Overview<\/strong><\/h1>\n<ul>\n<li>Brain death refers to the\u00a0<strong>complete and irreversible loss<\/strong>\u00a0of brain function.<\/li>\n<li>Can be diagnosed even if other vital functions (heart, lungs) are maintained artificially.<\/li>\n<\/ul>\n<h1><strong>Diagnostic Criteria<\/strong><\/h1>\n<ol>\n<li><strong>Cessation of Brain Function<\/strong><\/li>\n<\/ol>\n<ul>\n<li>No neuronal activity detectable.<\/li>\n<li>Confirmed via:\n<ul>\n<li><strong>Imaging techniques<\/strong>\u00a0(e.g., EEG, CT, MRI).<\/li>\n<li><strong>Absence<\/strong>\u00a0of brainstem reflex responses:\n<ul>\n<li>Pupillary reflex.<\/li>\n<li>Gag reflex.<\/li>\n<li>Corneal reflex.<\/li>\n<li>Oculocephalic reflex (doll\u2019s eyes).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>No spontaneous\u00a0<strong>respiratory effort<\/strong>:\n<ul>\n<li>Tested by\u00a0<strong>removing<\/strong>\u00a0ventilator support.<\/li>\n<li>Absence of\u00a0<strong>breathing<\/strong>\u00a0indicates brainstem failure.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"2\">\n<li><strong>Cause of Brain Dysfunction<\/strong><\/li>\n<\/ol>\n<ul>\n<li>Must be\u00a0<strong>completely irreversible<\/strong>.<\/li>\n<li>Caused by\u00a0<strong>trauma, stroke, tumor, or hypoxia<\/strong>\u00a0that has caused\u00a0<strong>extensive brain damage<\/strong>.<\/li>\n<li>The cause is thoroughly\u00a0<strong>evaluated<\/strong>\u00a0before confirming brain death.<\/li>\n<\/ul>\n<ol start=\"3\">\n<li><strong>Confirmation<\/strong><\/li>\n<\/ol>\n<ul>\n<li>Typically, the diagnosis is made\u00a0<strong>twice<\/strong>\u00a0by\u00a0<strong>different physicians<\/strong>.<\/li>\n<li>Ensures\u00a0<strong>accuracy<\/strong>\u00a0and\u00a0<strong>avoids false diagnosis<\/strong>.<\/li>\n<\/ul>\n<p><strong>Additional Considerations<\/strong><\/p>\n<ul>\n<li>The\u00a0<strong>clinical picture<\/strong>\u00a0must be consistent.<\/li>\n<li>No possibility of\u00a0<strong>neurological recovery<\/strong>.<\/li>\n<li>Does not include <strong>coma<\/strong> or <strong>unresponsive wakefulness syndrome<\/strong>, which are potentially reversible.<\/li>\n<\/ul>\n<h1><strong>Summary<\/strong><\/h1>\n<ul>\n<li>Brain death criteria involve\u00a0<strong>loss of all brain functions<\/strong>\u00a0and confirmatory testing.<\/li>\n<li>Once confirmed,\u00a0<strong>organ donation<\/strong>\u00a0and ethical considerations may follow.<\/li>\n<li>It remains a\u00a0<strong>legal and medical standard<\/strong>\u00a0for declaring death.<\/li>\n<\/ul>\n","protected":false},"author":1370,"menu_order":13,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":["zoe-soon"],"pb_section_license":"cc-by-nc-nd"},"chapter-type":[],"contributor":[60],"license":[58],"class_list":["post-5450","chapter","type-chapter","status-web-only","hentry","contributor-zoe-soon","license-cc-by-nc-nd"],"part":76,"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5450","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/users\/1370"}],"version-history":[{"count":2,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5450\/revisions"}],"predecessor-version":[{"id":5452,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5450\/revisions\/5452"}],"part":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/parts\/76"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5450\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/media?parent=5450"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapter-type?post=5450"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/contributor?post=5450"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/license?post=5450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}