{"id":6447,"date":"2019-05-25T13:00:57","date_gmt":"2019-05-25T20:00:57","guid":{"rendered":"https:\/\/news.weedmaps.com\/?p=6447"},"modified":"2019-05-26T19:28:32","modified_gmt":"2019-05-27T02:28:32","slug":"study-cannabis-research-ischemic-stroke-risk","status":"publish","type":"post","link":"https:\/\/wmnews.wpengine.com\/2019\/05\/study-cannabis-research-ischemic-stroke-risk\/","title":{"rendered":"Study Disputes Earlier Research Suggesting Cannabis Elevates Stroke Risk"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">A May 2019 study suggests that cannabis use was not an independent ischemic risk factor, contradicting previous research. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Strokes cause approximately 1 out of every 20 deaths in the United States each year, claiming the life of one American every four minutes, according to the Centers for Disease Control and Prevention (CDC).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Considering around 87% of all strokes are ischemic strokes, which is the result of reduced blood flow to the brain, stroke prevention strategies should target medical and lifestyle risk factors. <\/span><\/p>\n<h2><b>Cannabis Not a Risk Factor<\/b><\/h2>\n<p><a href=\"https:\/\/n.neurology.org\/content\/92\/15_Supplement\/P3.3-012\" target=\"_blank\" rel=\"nofollow noopener\">A recent study<\/a><span style=\"font-weight: 400;\">, published in Neurology on May 7, 2019, aimed to determine the association between cannabis use and acute ischemic stroke. It concluded that recent cannabis use was not an independent ischemic stroke risk factor. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">But in recent years, a number of other published studies have highlighted an increased stroke risk in relation to cannabis. One <\/span><a href=\"https:\/\/www.researchgate.net\/publication\/328418774_TRENDS_IN_STROKE_PREVALENCE_STROKE-RELATED_HOSPITAL_STAY_AND_HOSPITAL_CHARGES_AMONG_RECREATIONAL_MARIJUANA_USERS_A_5-YEAR_NATIONWIDE_STUDY_IN_THE_UNITED_STATES\" target=\"_blank\" rel=\"nofollow noopener\">2018 study<\/a><span style=\"font-weight: 400;\"> in the International Journal of Stroke reported that the risk of ischemic stroke could increase by as much as 29% among recreational marijuana users. While there are still many variables to consider and causation was not established, this data was alarming to the public. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201c<\/span><span style=\"font-weight: 400;\">The studies that come out on the dangers of cannabis have many issues in terms of direct causation,<\/span><span style=\"font-weight: 400;\"> said Dr. Bonni Goldstein,\u00a0<\/span><span style=\"font-weight: 400;\">Med<\/span><span style=\"font-weight: 400;\">ical Director at <a href=\"https:\/\/www.canna-centers.com\/\" target=\"_blank\" rel=\"nofollow noopener\">Canna-Centers Wellness &amp; Education<\/a> in Lawndale, California; a medical adviser to WeedMaps, and author of \u201c<\/span><a href=\"https:\/\/www.bonnigoldsteinmd.com\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">Cannabis Revealed<\/span><span style=\"font-weight: 400;\">.<\/span><\/a><span style=\"font-weight: 400;\">\u201d <\/span><span style=\"font-weight: 400;\">\u00a0\u201cIt is extremely difficult to separate out the vast number of variables that confound these types of studies.\u201d<\/span><\/p>\n<figure id=\"attachment_6451\" aria-describedby=\"caption-attachment-6451\" style=\"width: 1206px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6451 wm-img-popup-click\" src=\"https:\/\/weedmaps.com\/news\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke.png\" alt=\"\" width=\"1206\" height=\"679\" srcset=\"https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke.png 1206w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke-300x169.png 300w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke-768x432.png 768w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke-1024x577.png 1024w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/Blausen_0836_Stroke-672x378.png 672w\" sizes=\"auto, (max-width: 1206px) 100vw, 1206px\" \/><figcaption id=\"caption-attachment-6451\" class=\"wp-caption-text\">Image from animation of stroke (Blausen Medical Communications, Inc.\/<a href=\"https:\/\/commons.wikimedia.org\/wiki\/Category:Stroke#\/media\/File:Blausen_0836_Stroke.png\" target=\"_blank\" rel=\"nofollow noopener\">Wikimedia Commons<\/a>)<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">For example, stroke risk may be exacerbated by certain conditions, such as <\/span><a href=\"https:\/\/www.diabetes.org\/living-with-diabetes\/complications\/heart-disease\/stroke.html\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">diabetes<\/span><\/a><span style=\"font-weight: 400;\"> or <\/span><a href=\"https:\/\/www.obesityaction.org\/wp-content\/uploads\/Obesity-and-Stroke-Fact-Sheet.pdf\"><span style=\"font-weight: 400;\">obesity<\/span><\/a><span style=\"font-weight: 400;\">. In addition, the researchers from the 2018 study were unsure whether an increased risk depends on dosage, whether it's due to the consumption of other substances, or if any number of other possible variables are involved. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Goldstein, who is also the Med<\/span><span style=\"font-weight: 400;\">ical Director at Canna-Centers Wellness &amp; Education,<\/span><span style=\"font-weight: 400;\"> claims that the 2018 study does not account for whether patients who had strokes also used alcohol, tobacco, illicit drugs, or pharmaceuticals. Without taking those variables into consideration, the report is \u201cnot particularly useful\u201d and could mislead health-care professionals. \u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> \u201cThe authors of this report state that they cannot establish causation between the risk of stroke and recreational cannabis use, and this is unfortunate because they are putting out a headline which is meant to scare people,\u201d she said. \u00a0<\/span><\/p>\n<h2><b>Existing Medical Conditions and Other Variables<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Evidence suggests that cannabis acts as a beneficial tool for many ailments, including those living with <\/span><a href=\"https:\/\/weedmaps.com\/news\/2019\/03\/studies-patients-using-cannabis-for-pain-relief-depend-less-on-opioids\/\"><span style=\"font-weight: 400;\">daily pain<\/span><\/a><span style=\"font-weight: 400;\"> or nausea. However, it is also important to recognize the potential risks involved, particularly among those with a history of cardiovascular disease. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Experts often urge older adults to <\/span><a href=\"https:\/\/www.medicalnewstoday.com\/articles\/324434.php\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">use the lowest dose<\/span><\/a><span style=\"font-weight: 400;\"> of cannabis, as the consumption method and tolerance are key considerations. In addition, <\/span><a href=\"https:\/\/www.health.harvard.edu\/heart-health\/marijuana-and-heart-health-what-you-need-to-know\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">researchers recommend<\/span><\/a><span style=\"font-weight: 400;\"> that anyone who has a history of heart disease or any other cardiovascular condition avoid <a href=\"https:\/\/weedmaps.com\/learn\/dictionary\/tetrahydrocannabinol-thc\/\" target=\"_blank\" rel=\"noopener\">THC<\/a>. Instead, they can utilize the non-psychoactive alternative, <a href=\"https:\/\/weedmaps.com\/learn\/dictionary\/cbd\/\" target=\"_blank\" rel=\"noopener\">cannabidiol (CBD)<\/a>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">While the relationship between cannabis use and heart disease remains largely <\/span><span style=\"font-weight: 400;\">theoretical<\/span><span style=\"font-weight: 400;\">, cannabis can cause blood pressure and heart rate to increase, an important consideration for heart patients. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A<\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/28028147\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\"> 2017 study<\/span><\/a><span style=\"font-weight: 400;\">, published in the American Heart Association journal Stroke, examined 49,321 Swedish men and found no association between cannabis use and stroke risk in young adults, including strokes before the age of 45. However, they did find a clear association between smoking tobacco and increased stroke risk. <\/span><\/p>\n<h2><b>Neuroprotective Properties of Cannabis <\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Cannabis may show signs of reducing stroke risk, Goldstein said.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cInterestingly, <\/span><a href=\"https:\/\/weedmaps.com\/learn\/dictionary\/cannabinoid\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">cannabinoids<\/span><\/a><span style=\"font-weight: 400;\"> have been shown to be neuroprotective antioxidants which support the brain, and CBD has been shown to be protective against stroke,\u201d Goldstein explained. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are studies that support Goldstein's claim. A <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27713349\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">2010 Swiss study<\/span><\/a><span style=\"font-weight: 400;\"> found that CBD \u201cexerts positive pharmacological effects in ischemic stroke and other chronic diseases.\u201d Additionally, in a <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/15845890\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">2005 study<\/span><\/a><span style=\"font-weight: 400;\"> published in Stroke, researchers concluded that the neuroprotective effect of CBD may be related to an increase in cerebral blood flow through the serotonin-1A receptor. <\/span><\/p>\n<figure id=\"attachment_6363\" aria-describedby=\"caption-attachment-6363\" style=\"width: 1600px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6363 size-full wm-img-popup-click\" src=\"https:\/\/weedmaps.com\/news\/wp-content\/uploads\/2019\/05\/untitled-2441.jpg\" alt=\"\" width=\"1600\" height=\"900\" srcset=\"https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/untitled-2441.jpg 1600w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/untitled-2441-300x169.jpg 300w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/untitled-2441-768x432.jpg 768w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/untitled-2441-1024x576.jpg 1024w, https:\/\/wmnews.wpenginepowered.com\/wp-content\/uploads\/2019\/05\/untitled-2441-672x378.jpg 672w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption id=\"caption-attachment-6363\" class=\"wp-caption-text\">Dr. Bonni Goldstein, Medical Director at Canna-Centers Wellness &amp; Education in Lawndale, California; a medical adviser to WeedMaps, and author of \u201cCannabis Revealed.\u201d<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Goldstein then said, \u201cSo this particular report about an increased risk of stroke for marijuana users, which has not been published in a peer-reviewed scientific journal, is inconsistent with the current knowledge of cannabinoids and the brain.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are also concerns surrounding <\/span><a href=\"https:\/\/www.scientificamerican.com\/article\/targeting-inflammation-may-protect-and-restore-the-brain-after-stroke\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">post-stroke immune responses<\/span><\/a><span style=\"font-weight: 400;\">, particularly with inflammation. Even after a patient receives tissue plasminogen activator (tPA), a protein that dissolves blood clots if injected up to 4\u200a1\/2 hours following stroke onset, they still face potential complications, such as increased inflammation. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">After a patient receives stroke treatment, continuing inflammation can cause brain damage, potentially leading to a progressive decline in cognitive function. To address this concern, researchers are looking for solutions to target post-stroke inflammation. According to Goldstein, cannabinoids have demonstrated the ability to block the release of pro-inflammatory compounds, and that further research is needed to fully comprehend the benefits. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cClinically, I see patients with autoimmune disorders such as rheumatoid arthritis and lupus benefit from cannabinoids, as well as patients with osteoarthritis, degenerative neck and back disease, and other chronic pain and inflammatory conditions,\u201d she said. \u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A May 2019 study suggests that cannabis use was not an independent ischemic risk factor, contradicting previous research. Strokes cause approximately 1 out of every 20 deaths in the United...<\/p>\n","protected":false},"author":86,"featured_media":6453,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[320,658,215,250],"class_list":["post-6447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-medicine","tag-cannabis","tag-health","tag-medical","tag-research","has-art"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Study Disputes Earlier Research Suggesting Cannabis Elevates Stroke Risk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/weedmaps.com\/news\/2019\/05\/study-cannabis-research-ischemic-stroke-risk\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study Disputes Earlier Research Suggesting Cannabis Elevates Stroke Risk\" \/>\n<meta property=\"og:description\" content=\"A May 2019 study suggests that cannabis use was not an independent ischemic risk factor, contradicting previous research. 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