External auditory canal and middle ear cholesteatoma and osteonecrosis in bisphosphonate-treated osteoporosis patients: a Danish national register-based cohort study and literature review

Summary Long-term treatment with bisphosphonates against osteoporosis may cause atypical femur fractures and osteonecrosis of the jaw. Eight cases of bisphosphonate-associated osteonecrosis of the external auditory canal area are published. Based on Danish national registers, we report a time- and d...

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Veröffentlicht in:Osteoporosis international 2014-07, Vol.25 (7), p.1937-1944
Hauptverfasser: Thorsteinsson, A.-L., Vestergaard, P., Eiken, P.
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description Summary Long-term treatment with bisphosphonates against osteoporosis may cause atypical femur fractures and osteonecrosis of the jaw. Eight cases of bisphosphonate-associated osteonecrosis of the external auditory canal area are published. Based on Danish national registers, we report a time- and dose-dependent increased risk of cholesteatoma in osteoporosis patients treated with bisphosphonates. Introduction In the recent years, there has been a focus on possible rare side effects of bisphosphonates (BPs). Eight cases of BP-associated osteonecrosis of the external auditory canal have been reported in the world literature. Our aim was to describe the incidence of external auditory canal and middle ear diseases in Danish patients exposed to BPs in the treatment of osteoporosis. Methods This register-based nationwide cohort study was conducted on the Danish population of approximately 5.6 million individuals. Patients who were prescribed BP for treatment of osteoporosis from 2003 to 2010 ( n  = 131,794) were included in the study and compared with the age- and gender-matched controls, unexposed to BP. Results The overall incidence of cholesteatoma in the ear was low. Only 350 events were seen in 527,176 cases and controls over 2,826,120.73 observation years. Totally, 119 events of cholesteatoma in the ear were recorded after initiation of BP therapy, 34 in the external auditory canal and 85 in the middle ear. Cholesteatoma in the external auditory canal was more frequent in the exposed than in the unexposed group ( p  
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Eight cases of bisphosphonate-associated osteonecrosis of the external auditory canal area are published. Based on Danish national registers, we report a time- and dose-dependent increased risk of cholesteatoma in osteoporosis patients treated with bisphosphonates. Introduction In the recent years, there has been a focus on possible rare side effects of bisphosphonates (BPs). Eight cases of BP-associated osteonecrosis of the external auditory canal have been reported in the world literature. Our aim was to describe the incidence of external auditory canal and middle ear diseases in Danish patients exposed to BPs in the treatment of osteoporosis. Methods This register-based nationwide cohort study was conducted on the Danish population of approximately 5.6 million individuals. Patients who were prescribed BP for treatment of osteoporosis from 2003 to 2010 ( n  = 131,794) were included in the study and compared with the age- and gender-matched controls, unexposed to BP. Results The overall incidence of cholesteatoma in the ear was low. Only 350 events were seen in 527,176 cases and controls over 2,826,120.73 observation years. Totally, 119 events of cholesteatoma in the ear were recorded after initiation of BP therapy, 34 in the external auditory canal and 85 in the middle ear. Cholesteatoma in the external auditory canal was more frequent in the exposed than in the unexposed group ( p  &lt; 0.0001). We found a significant dose-event relationship between incidence of cholesteatoma and dose of alendronate ( p  &lt; 0.0001) and etidronate ( p  &lt; 0.0001). Furthermore, we found an association between duration of treatment with alendronate and etidronate and risk of cholesteatoma in the external auditory ear canal (log rank, p  = 0.002). No cases of bone destruction were observed during the 7-year observation period in either group. Conclusion The use of oral BP is associated with an increased risk of cholesteatoma of the external auditory canal. The risk is small and associated with duration and dosage of BP.</description><identifier>ISSN: 0937-941X</identifier><identifier>EISSN: 1433-2965</identifier><identifier>DOI: 10.1007/s00198-014-2684-7</identifier><identifier>PMID: 24664275</identifier><language>eng</language><publisher>London: Springer London</publisher><subject>Administration, Oral ; Aged ; Aged, 80 and over ; Bisphosphonate-Associated Osteonecrosis of the Jaw - epidemiology ; Bone Density Conservation Agents - administration &amp; dosage ; Bone Density Conservation Agents - adverse effects ; Bone Density Conservation Agents - therapeutic use ; Cholesteatoma - chemically induced ; Cholesteatoma - epidemiology ; Cholesteatoma, Middle Ear - chemically induced ; Cholesteatoma, Middle Ear - epidemiology ; Cohort Studies ; Denmark - epidemiology ; Diphosphonates - administration &amp; dosage ; Diphosphonates - adverse effects ; Diphosphonates - therapeutic use ; Dose-Response Relationship, Drug ; Drug therapy ; Ear Canal ; Ear diseases ; Endocrinology ; Female ; Humans ; Incidence ; Male ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Original Article ; Orthopedics ; Osteoporosis ; Osteoporosis - drug therapy ; Osteoporosis - epidemiology ; Registries ; Retrospective Studies ; Rheumatology ; Side effects</subject><ispartof>Osteoporosis international, 2014-07, Vol.25 (7), p.1937-1944</ispartof><rights>International Osteoporosis Foundation and National Osteoporosis Foundation 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c496t-df9cbab30c29b91968f665631100d9e927360d0ff31d0a024a7334d05f54253a3</citedby><cites>FETCH-LOGICAL-c496t-df9cbab30c29b91968f665631100d9e927360d0ff31d0a024a7334d05f54253a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00198-014-2684-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00198-014-2684-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24664275$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Thorsteinsson, A.-L.</creatorcontrib><creatorcontrib>Vestergaard, P.</creatorcontrib><creatorcontrib>Eiken, P.</creatorcontrib><title>External auditory canal and middle ear cholesteatoma and osteonecrosis in bisphosphonate-treated osteoporosis patients: a Danish national register-based cohort study and literature review</title><title>Osteoporosis international</title><addtitle>Osteoporos Int</addtitle><addtitle>Osteoporos Int</addtitle><description>Summary Long-term treatment with bisphosphonates against osteoporosis may cause atypical femur fractures and osteonecrosis of the jaw. Eight cases of bisphosphonate-associated osteonecrosis of the external auditory canal area are published. Based on Danish national registers, we report a time- and dose-dependent increased risk of cholesteatoma in osteoporosis patients treated with bisphosphonates. Introduction In the recent years, there has been a focus on possible rare side effects of bisphosphonates (BPs). Eight cases of BP-associated osteonecrosis of the external auditory canal have been reported in the world literature. Our aim was to describe the incidence of external auditory canal and middle ear diseases in Danish patients exposed to BPs in the treatment of osteoporosis. Methods This register-based nationwide cohort study was conducted on the Danish population of approximately 5.6 million individuals. Patients who were prescribed BP for treatment of osteoporosis from 2003 to 2010 ( n  = 131,794) were included in the study and compared with the age- and gender-matched controls, unexposed to BP. Results The overall incidence of cholesteatoma in the ear was low. Only 350 events were seen in 527,176 cases and controls over 2,826,120.73 observation years. Totally, 119 events of cholesteatoma in the ear were recorded after initiation of BP therapy, 34 in the external auditory canal and 85 in the middle ear. Cholesteatoma in the external auditory canal was more frequent in the exposed than in the unexposed group ( p  &lt; 0.0001). We found a significant dose-event relationship between incidence of cholesteatoma and dose of alendronate ( p  &lt; 0.0001) and etidronate ( p  &lt; 0.0001). Furthermore, we found an association between duration of treatment with alendronate and etidronate and risk of cholesteatoma in the external auditory ear canal (log rank, p  = 0.002). No cases of bone destruction were observed during the 7-year observation period in either group. Conclusion The use of oral BP is associated with an increased risk of cholesteatoma of the external auditory canal. The risk is small and associated with duration and dosage of BP.</description><subject>Administration, Oral</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Bisphosphonate-Associated Osteonecrosis of the Jaw - epidemiology</subject><subject>Bone Density Conservation Agents - administration &amp; dosage</subject><subject>Bone Density Conservation Agents - adverse effects</subject><subject>Bone Density Conservation Agents - therapeutic use</subject><subject>Cholesteatoma - chemically induced</subject><subject>Cholesteatoma - epidemiology</subject><subject>Cholesteatoma, Middle Ear - chemically induced</subject><subject>Cholesteatoma, Middle Ear - epidemiology</subject><subject>Cohort Studies</subject><subject>Denmark - epidemiology</subject><subject>Diphosphonates - administration &amp; dosage</subject><subject>Diphosphonates - adverse effects</subject><subject>Diphosphonates - therapeutic use</subject><subject>Dose-Response Relationship, Drug</subject><subject>Drug therapy</subject><subject>Ear Canal</subject><subject>Ear diseases</subject><subject>Endocrinology</subject><subject>Female</subject><subject>Humans</subject><subject>Incidence</subject><subject>Male</subject><subject>Medicine</subject><subject>Medicine &amp; Public Health</subject><subject>Middle Aged</subject><subject>Original Article</subject><subject>Orthopedics</subject><subject>Osteoporosis</subject><subject>Osteoporosis - drug therapy</subject><subject>Osteoporosis - epidemiology</subject><subject>Registries</subject><subject>Retrospective Studies</subject><subject>Rheumatology</subject><subject>Side effects</subject><issn>0937-941X</issn><issn>1433-2965</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp1kU-L1TAUxYMoznP0A7iRgBs30fxr2riTcUaFATcK7sptk87L0CY1SUffZ_PLTfr6FBFchHC5v3MPnIPQc0ZfM0rrN4lSphtCmSRcNZLUD9COSSEI16p6iHZUi5poyb6doScp3dKi0bp-jM64VEryutqhX5c_s40eRgyLcTnEA-7hOHqDJ2fMaLGFiPt9GG3KFnKY4LgMZQre9jEkl7DzuHNp3of1eciW5Fhge-LmsGEzZGd9Tm8x4PfgXdrjAruwOkZ74wobSQep6PqwDzHjlBdzOBqOriwhL9EW9M7ZH0_RowHGZJ-d_nP09eryy8VHcv35w6eLd9ekl1plYgbdd9AJ2nPdaaZVMyhVKcFKhkZbzWuhqKHDIJihQLmEWghpaDVUklcCxDl6td2dY_i-lBTayaXejiN4G5bUskpSznnTiIK-_Ae9Dcsa70qJ4sOZZIViG7WGl6Id2jm6CeKhZbRdm223ZtvSbLs229ZF8-J0eekma_4ofldZAL4Bqaz8jY1_Wf_36j2y1LLk</recordid><startdate>20140701</startdate><enddate>20140701</enddate><creator>Thorsteinsson, A.-L.</creator><creator>Vestergaard, P.</creator><creator>Eiken, P.</creator><general>Springer London</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7RV</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PJZUB</scope><scope>PKEHL</scope><scope>PPXIY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20140701</creationdate><title>External auditory canal and middle ear cholesteatoma and osteonecrosis in bisphosphonate-treated osteoporosis patients: a Danish national register-based cohort study and literature review</title><author>Thorsteinsson, A.-L. ; Vestergaard, P. ; Eiken, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c496t-df9cbab30c29b91968f665631100d9e927360d0ff31d0a024a7334d05f54253a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Administration, Oral</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Bisphosphonate-Associated Osteonecrosis of the Jaw - epidemiology</topic><topic>Bone Density Conservation Agents - administration &amp; dosage</topic><topic>Bone Density Conservation Agents - adverse effects</topic><topic>Bone Density Conservation Agents - therapeutic use</topic><topic>Cholesteatoma - chemically induced</topic><topic>Cholesteatoma - epidemiology</topic><topic>Cholesteatoma, Middle Ear - chemically induced</topic><topic>Cholesteatoma, Middle Ear - epidemiology</topic><topic>Cohort Studies</topic><topic>Denmark - epidemiology</topic><topic>Diphosphonates - administration &amp; dosage</topic><topic>Diphosphonates - adverse effects</topic><topic>Diphosphonates - therapeutic use</topic><topic>Dose-Response Relationship, Drug</topic><topic>Drug therapy</topic><topic>Ear Canal</topic><topic>Ear diseases</topic><topic>Endocrinology</topic><topic>Female</topic><topic>Humans</topic><topic>Incidence</topic><topic>Male</topic><topic>Medicine</topic><topic>Medicine &amp; Public Health</topic><topic>Middle Aged</topic><topic>Original Article</topic><topic>Orthopedics</topic><topic>Osteoporosis</topic><topic>Osteoporosis - drug therapy</topic><topic>Osteoporosis - epidemiology</topic><topic>Registries</topic><topic>Retrospective Studies</topic><topic>Rheumatology</topic><topic>Side effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thorsteinsson, A.-L.</creatorcontrib><creatorcontrib>Vestergaard, P.</creatorcontrib><creatorcontrib>Eiken, P.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Physical Education Index</collection><collection>Health &amp; 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Allied Health Premium</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest Health &amp; Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health &amp; Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Osteoporosis international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thorsteinsson, A.-L.</au><au>Vestergaard, P.</au><au>Eiken, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>External auditory canal and middle ear cholesteatoma and osteonecrosis in bisphosphonate-treated osteoporosis patients: a Danish national register-based cohort study and literature review</atitle><jtitle>Osteoporosis international</jtitle><stitle>Osteoporos Int</stitle><addtitle>Osteoporos Int</addtitle><date>2014-07-01</date><risdate>2014</risdate><volume>25</volume><issue>7</issue><spage>1937</spage><epage>1944</epage><pages>1937-1944</pages><issn>0937-941X</issn><eissn>1433-2965</eissn><abstract>Summary Long-term treatment with bisphosphonates against osteoporosis may cause atypical femur fractures and osteonecrosis of the jaw. Eight cases of bisphosphonate-associated osteonecrosis of the external auditory canal area are published. Based on Danish national registers, we report a time- and dose-dependent increased risk of cholesteatoma in osteoporosis patients treated with bisphosphonates. Introduction In the recent years, there has been a focus on possible rare side effects of bisphosphonates (BPs). Eight cases of BP-associated osteonecrosis of the external auditory canal have been reported in the world literature. Our aim was to describe the incidence of external auditory canal and middle ear diseases in Danish patients exposed to BPs in the treatment of osteoporosis. Methods This register-based nationwide cohort study was conducted on the Danish population of approximately 5.6 million individuals. Patients who were prescribed BP for treatment of osteoporosis from 2003 to 2010 ( n  = 131,794) were included in the study and compared with the age- and gender-matched controls, unexposed to BP. Results The overall incidence of cholesteatoma in the ear was low. Only 350 events were seen in 527,176 cases and controls over 2,826,120.73 observation years. Totally, 119 events of cholesteatoma in the ear were recorded after initiation of BP therapy, 34 in the external auditory canal and 85 in the middle ear. Cholesteatoma in the external auditory canal was more frequent in the exposed than in the unexposed group ( p  &lt; 0.0001). We found a significant dose-event relationship between incidence of cholesteatoma and dose of alendronate ( p  &lt; 0.0001) and etidronate ( p  &lt; 0.0001). Furthermore, we found an association between duration of treatment with alendronate and etidronate and risk of cholesteatoma in the external auditory ear canal (log rank, p  = 0.002). No cases of bone destruction were observed during the 7-year observation period in either group. Conclusion The use of oral BP is associated with an increased risk of cholesteatoma of the external auditory canal. The risk is small and associated with duration and dosage of BP.</abstract><cop>London</cop><pub>Springer London</pub><pmid>24664275</pmid><doi>10.1007/s00198-014-2684-7</doi><tpages>8</tpages></addata></record>
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source MEDLINE; Springer Nature - Complete Springer Journals
subjects Administration, Oral
Aged
Aged, 80 and over
Bisphosphonate-Associated Osteonecrosis of the Jaw - epidemiology
Bone Density Conservation Agents - administration & dosage
Bone Density Conservation Agents - adverse effects
Bone Density Conservation Agents - therapeutic use
Cholesteatoma - chemically induced
Cholesteatoma - epidemiology
Cholesteatoma, Middle Ear - chemically induced
Cholesteatoma, Middle Ear - epidemiology
Cohort Studies
Denmark - epidemiology
Diphosphonates - administration & dosage
Diphosphonates - adverse effects
Diphosphonates - therapeutic use
Dose-Response Relationship, Drug
Drug therapy
Ear Canal
Ear diseases
Endocrinology
Female
Humans
Incidence
Male
Medicine
Medicine & Public Health
Middle Aged
Original Article
Orthopedics
Osteoporosis
Osteoporosis - drug therapy
Osteoporosis - epidemiology
Registries
Retrospective Studies
Rheumatology
Side effects
title External auditory canal and middle ear cholesteatoma and osteonecrosis in bisphosphonate-treated osteoporosis patients: a Danish national register-based cohort study and literature review
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