Modern Occupational Diseases Diagnosis, Epidemiology, Management and Prevention

Asbestosis

Author(s): Ian Henderson*, Daniel H. Sterman, Robert L. Smith and William N. Rom

Pp: 41-57 (17)

DOI: 10.2174/9789815049138122010007

* (Excluding Mailing and Handling)

Abstract

Asbestos, due to its unique physical properties and abundance, was widely used in commercial applications at the beginning of the 20th century. By the 1930s, reports of respiratory illnesses in workers with occupational exposure to asbestos began to surface. Inhalation of asbestos leads to a localized inflammatory response that attempts to clear inhaled asbestos fibers. This inflammatory response and retained asbestos fibers are central to the pathogenesis of asbestosis-related pulmonary disease. Asbestos causes a range of pulmonary diseases ranging from benign, incidental pleural abnormalities to progressive, fatal pulmonary fibrosis to malignant neoplasms of the lung and pleura. The benign manifestations of asbestos exposure, the focus of this chapter, can be grouped into pleural and parenchymal diseases. Asbestosis is a fibrotic, parenchymal disease caused by asbestos exposure. After several decades from initial asbestos exposure, patients develop dyspnea, exercise intolerance, and hypoxia with restrictive physiology on pulmonary function testing similar to other interstitial lung diseases. The most common pleural manifestation is pleural plaques, which are localized areas of pleural fibrosis that are often found incidentally. While normally asymptomatic, they are a marker of asbestos exposure. Other pleural manifestations tend to be symptomatic and include diffuse pleural thickening and acute benign pleural effusion. This chapter discusses pathogenesis, clinical presentation, radiographic and physiologic manifestations, and management of benign asbestos lung diseases.


Keywords: Asbestosis, Pleural Plague, Pleural Thickening, Pneumoconiosis, Round Atelectasis.

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      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1478
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
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      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1518
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59772390 and j.to_ip >=59772390 )) and ((j.from_date <= 1739834828 and j.to_date >= 1739834828 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 17822) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59772390 and j.to_ip >=59772390 )) and ((j.from_date <= 1739834828 and j.to_date >= 1739834828 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 17822) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59772390 and j.to_ip >=59772390 )) and ((j.from_date <= 1739834828 and j.to_date >= 1739834828 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 17822)
      840μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 3407 and `b`.`banner_from_date` <= 1739834828 and `b`.`banner_to_date` >= 1739834828 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.5msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 3407
      • 3: 1739834828
      • 4: 1739834828
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='160d810a7830d816d0d59c55a7bf8efe'
      240μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Keywords
    5Keywords.php#?
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        UKM0OC8tswa1dogVMTDexbTMwN801FwCGwQfy7Cx
        uc_cart_id
        160d810a7830d816d0d59c55a7bf8efe
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/17822" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/17822
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
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        request_cookies
        0 of 0
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        response_headers
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        ClearShow all
        Date ↕MethodURLData
        #12025-02-17 23:27:08GET/chapter/17822112197