Chronic exposure to carbon monoxide in two elderly patients using a kotatsu, a traditional Japanese charcoal‐based heater
We report on two elderly patients with cognitive impairments, for whom chronic carbon monoxide (CO) exposure was suspected based on elevated carboxyhaemoglobin levels in their serum. On their initial visits, cognitive impairment and brain magnetic resonance imaging findings in both patients were com...
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| Veröffentlicht in: | Psychogeriatrics 2016-09, Vol.16 (5), p.323-326 |
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| container_title | Psychogeriatrics |
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| creator | Nakamura, Toshinori Setsu, Koutaro Takahashi, Tohru Miyashita, Mitsuhiro Sugiyama, Nobuhiro Washizuka, Shinsuke Murata, Shiho Hanihara, Tokiji Amano, Naoji |
| description | We report on two elderly patients with cognitive impairments, for whom chronic carbon monoxide (CO) exposure was suspected based on elevated carboxyhaemoglobin levels in their serum. On their initial visits, cognitive impairment and brain magnetic resonance imaging findings in both patients were compatible with the diagnosis of Alzheimer's‐type dementia. However, after discontinuation of the use of a kotatsu, a charcoal‐based heater, their serum carboxyhaemoglobin levels normalized and their physical symptoms resolved. Their cognitive function also slightly improved. The causal relationship between physical symptoms and cognitive impairment after chronic CO poisoning is uncertain; however, it is possible that chronic exposure to low CO levels exacerbated the clinical manifestation in our patients. |
| doi_str_mv | 10.1111/psyg.12164 |
| format | Article |
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On their initial visits, cognitive impairment and brain magnetic resonance imaging findings in both patients were compatible with the diagnosis of Alzheimer's‐type dementia. However, after discontinuation of the use of a kotatsu, a charcoal‐based heater, their serum carboxyhaemoglobin levels normalized and their physical symptoms resolved. Their cognitive function also slightly improved. The causal relationship between physical symptoms and cognitive impairment after chronic CO poisoning is uncertain; however, it is possible that chronic exposure to low CO levels exacerbated the clinical manifestation in our patients.</description><identifier>ISSN: 1346-3500</identifier><identifier>EISSN: 1479-8301</identifier><identifier>DOI: 10.1111/psyg.12164</identifier><identifier>PMID: 26551791</identifier><language>eng</language><publisher>England: Blackwell Publishing Ltd</publisher><subject>Aged, 80 and over ; Carbon monoxide ; Carbon Monoxide - analysis ; Carbon Monoxide - blood ; Carbon Monoxide Poisoning - complications ; Carbon Monoxide Poisoning - diagnosis ; carboxyhaemoglobin ; Carboxyhemoglobin - analysis ; Charcoal ; charcoal‐based heater ; Cognitive ability ; Cognitive Dysfunction - diagnostic imaging ; Cognitive Dysfunction - etiology ; Cognitive Dysfunction - pathology ; cognitive impairment ; Female ; Heating - instrumentation ; Humans ; Japan ; Magnetic Resonance Imaging ; Male ; poisoning</subject><ispartof>Psychogeriatrics, 2016-09, Vol.16 (5), p.323-326</ispartof><rights>2015 The Authors. Psychogeriatrics © 2015 Japanese Psychogeriatric Society</rights><rights>2015 The Authors. Psychogeriatrics © 2015 Japanese Psychogeriatric Society.</rights><rights>2016 Japanese Psychogeriatric Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fpsyg.12164$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fpsyg.12164$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26551791$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nakamura, Toshinori</creatorcontrib><creatorcontrib>Setsu, Koutaro</creatorcontrib><creatorcontrib>Takahashi, Tohru</creatorcontrib><creatorcontrib>Miyashita, Mitsuhiro</creatorcontrib><creatorcontrib>Sugiyama, Nobuhiro</creatorcontrib><creatorcontrib>Washizuka, Shinsuke</creatorcontrib><creatorcontrib>Murata, Shiho</creatorcontrib><creatorcontrib>Hanihara, Tokiji</creatorcontrib><creatorcontrib>Amano, Naoji</creatorcontrib><title>Chronic exposure to carbon monoxide in two elderly patients using a kotatsu, a traditional Japanese charcoal‐based heater</title><title>Psychogeriatrics</title><addtitle>Psychogeriatrics</addtitle><description>We report on two elderly patients with cognitive impairments, for whom chronic carbon monoxide (CO) exposure was suspected based on elevated carboxyhaemoglobin levels in their serum. On their initial visits, cognitive impairment and brain magnetic resonance imaging findings in both patients were compatible with the diagnosis of Alzheimer's‐type dementia. However, after discontinuation of the use of a kotatsu, a charcoal‐based heater, their serum carboxyhaemoglobin levels normalized and their physical symptoms resolved. Their cognitive function also slightly improved. The causal relationship between physical symptoms and cognitive impairment after chronic CO poisoning is uncertain; however, it is possible that chronic exposure to low CO levels exacerbated the clinical manifestation in our patients.</description><subject>Aged, 80 and over</subject><subject>Carbon monoxide</subject><subject>Carbon Monoxide - analysis</subject><subject>Carbon Monoxide - blood</subject><subject>Carbon Monoxide Poisoning - complications</subject><subject>Carbon Monoxide Poisoning - diagnosis</subject><subject>carboxyhaemoglobin</subject><subject>Carboxyhemoglobin - analysis</subject><subject>Charcoal</subject><subject>charcoal‐based heater</subject><subject>Cognitive ability</subject><subject>Cognitive Dysfunction - diagnostic imaging</subject><subject>Cognitive Dysfunction - etiology</subject><subject>Cognitive Dysfunction - pathology</subject><subject>cognitive impairment</subject><subject>Female</subject><subject>Heating - instrumentation</subject><subject>Humans</subject><subject>Japan</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>poisoning</subject><issn>1346-3500</issn><issn>1479-8301</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkc9O3DAQxi1UxN9eeABkiUsPDfXYcZwcqxWFIiSQWg49RXYyYb1k42A72l31wiPwjH2SZv-UQ-cynzQ_jeabj5AzYJcw1pc-rJ4ugUOW7pEjSFWR5ILBh1GLNEuEZOyQHIcwY4ynUogDcsgzKUEVcER-T6bedbaiuOxdGDzS6GilvXEdnbvOLW2N1HY0LhzFtkbfrmivo8UuBjoE2z1RTZ9d1DEMn0cZva5ttK7TLb3Vve4wIK2m2ldOt39e34wOWNMp6oj-lOw3ug34cddPyOO3q5-Tm-Tu_vr75OtdMhNKpkljjOEKZVZArQzjCJKD1jKvMGsawXMzemFK8SpDVhcFQo6AkqPJVaNkIU7Ip-3e3ruXAUMs5zZU2LbjdW4IJeRc5UWWSxjRi__QmRv8aGZNgVJpsaXOd9Rg5liXvbdz7Vflv7eOAGyBhW1x9T4HVq4DK9eBlZvAyocfv643SvwFUK-Krg</recordid><startdate>201609</startdate><enddate>201609</enddate><creator>Nakamura, Toshinori</creator><creator>Setsu, Koutaro</creator><creator>Takahashi, Tohru</creator><creator>Miyashita, Mitsuhiro</creator><creator>Sugiyama, Nobuhiro</creator><creator>Washizuka, Shinsuke</creator><creator>Murata, Shiho</creator><creator>Hanihara, Tokiji</creator><creator>Amano, Naoji</creator><general>Blackwell Publishing Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7TK</scope></search><sort><creationdate>201609</creationdate><title>Chronic exposure to carbon monoxide in two elderly patients using a kotatsu, a traditional Japanese charcoal‐based heater</title><author>Nakamura, Toshinori ; Setsu, Koutaro ; Takahashi, Tohru ; Miyashita, Mitsuhiro ; Sugiyama, Nobuhiro ; Washizuka, Shinsuke ; Murata, Shiho ; Hanihara, Tokiji ; Amano, Naoji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j3754-fbbb27e5691d7b02e1521aa58ce6ff328b5170772c6e0d99e18e1e52eb87f7593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aged, 80 and over</topic><topic>Carbon monoxide</topic><topic>Carbon Monoxide - analysis</topic><topic>Carbon Monoxide - blood</topic><topic>Carbon Monoxide Poisoning - complications</topic><topic>Carbon Monoxide Poisoning - diagnosis</topic><topic>carboxyhaemoglobin</topic><topic>Carboxyhemoglobin - analysis</topic><topic>Charcoal</topic><topic>charcoal‐based heater</topic><topic>Cognitive ability</topic><topic>Cognitive Dysfunction - diagnostic imaging</topic><topic>Cognitive Dysfunction - etiology</topic><topic>Cognitive Dysfunction - pathology</topic><topic>cognitive impairment</topic><topic>Female</topic><topic>Heating - instrumentation</topic><topic>Humans</topic><topic>Japan</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>poisoning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nakamura, Toshinori</creatorcontrib><creatorcontrib>Setsu, Koutaro</creatorcontrib><creatorcontrib>Takahashi, Tohru</creatorcontrib><creatorcontrib>Miyashita, Mitsuhiro</creatorcontrib><creatorcontrib>Sugiyama, Nobuhiro</creatorcontrib><creatorcontrib>Washizuka, Shinsuke</creatorcontrib><creatorcontrib>Murata, Shiho</creatorcontrib><creatorcontrib>Hanihara, Tokiji</creatorcontrib><creatorcontrib>Amano, Naoji</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>Neurosciences Abstracts</collection><jtitle>Psychogeriatrics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nakamura, Toshinori</au><au>Setsu, Koutaro</au><au>Takahashi, Tohru</au><au>Miyashita, Mitsuhiro</au><au>Sugiyama, Nobuhiro</au><au>Washizuka, Shinsuke</au><au>Murata, Shiho</au><au>Hanihara, Tokiji</au><au>Amano, Naoji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chronic exposure to carbon monoxide in two elderly patients using a kotatsu, a traditional Japanese charcoal‐based heater</atitle><jtitle>Psychogeriatrics</jtitle><addtitle>Psychogeriatrics</addtitle><date>2016-09</date><risdate>2016</risdate><volume>16</volume><issue>5</issue><spage>323</spage><epage>326</epage><pages>323-326</pages><issn>1346-3500</issn><eissn>1479-8301</eissn><abstract>We report on two elderly patients with cognitive impairments, for whom chronic carbon monoxide (CO) exposure was suspected based on elevated carboxyhaemoglobin levels in their serum. On their initial visits, cognitive impairment and brain magnetic resonance imaging findings in both patients were compatible with the diagnosis of Alzheimer's‐type dementia. However, after discontinuation of the use of a kotatsu, a charcoal‐based heater, their serum carboxyhaemoglobin levels normalized and their physical symptoms resolved. Their cognitive function also slightly improved. The causal relationship between physical symptoms and cognitive impairment after chronic CO poisoning is uncertain; however, it is possible that chronic exposure to low CO levels exacerbated the clinical manifestation in our patients.</abstract><cop>England</cop><pub>Blackwell Publishing Ltd</pub><pmid>26551791</pmid><doi>10.1111/psyg.12164</doi><tpages>4</tpages></addata></record> |
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| subjects | Aged, 80 and over Carbon monoxide Carbon Monoxide - analysis Carbon Monoxide - blood Carbon Monoxide Poisoning - complications Carbon Monoxide Poisoning - diagnosis carboxyhaemoglobin Carboxyhemoglobin - analysis Charcoal charcoal‐based heater Cognitive ability Cognitive Dysfunction - diagnostic imaging Cognitive Dysfunction - etiology Cognitive Dysfunction - pathology cognitive impairment Female Heating - instrumentation Humans Japan Magnetic Resonance Imaging Male poisoning |
| title | Chronic exposure to carbon monoxide in two elderly patients using a kotatsu, a traditional Japanese charcoal‐based heater |
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