Kalp adalesinin ve sinirsel iletim sisteminin \u00e7al\u0131\u015fmas\u0131n\u0131 incelemek \u00fczere kalpte meydana gelen elektrik faaliyetinin kaydedilmesine Elektrokardiyografi yani k\u0131saca EKG denilmektedir.\u00a0Kalbin vuru\u015flar\u0131, kalp kaslar\u0131ndaki voltaj de\u011fi\u015fimlerinden kaynaklan\u0131r. V\u00fccudun iki noktas\u0131ndan deriye ba\u011flanacak bir voltmetreyle bu de\u011fi\u015fimler alg\u0131lanabilir.<\/p>\n
Bu kay\u0131t ile elde edilen grafi\u011fe \u201cElektrokardiyogram\u201d (EKG), kullan\u0131lan \u00e2lete de \u201cElektrokardiyograf\u201d denir. Bir ak\u0131m y\u00fckselteci\u00a0 (amplifikat\u00f6r) taraf\u0131ndan y\u00fckseltilen gerilimler \u0131s\u0131ya duyarl\u0131 k\u00e2\u011f\u0131t \u00fczerine kaydedilir. Elektrokardiyogram ayg\u0131t\u0131, kaydedilen baz\u0131 geli\u015fimlere ra\u011fmen, h\u00e2l\u00e2 bu sisteme g\u00f6re \u00e7al\u0131\u015f\u0131r. Voltaj de\u011fi\u015fimleri bir kalemle \u00f6zel bir ka\u011f\u0131t \u00fczerine yans\u0131t\u0131l\u0131r. Kalp uzman\u0131 bir doktor, bu ka\u011f\u0131d\u0131 inceledi\u011fi zaman kalp seslerinin d\u00fczenlili\u011fi, kar\u0131nc\u0131klar\u0131n ve kulak\u00e7\u0131klar\u0131n durumu ve g\u00f6\u011f\u00fcs a\u011fr\u0131lar\u0131n\u0131n nedenleri ile ilgili \u00e7ok \u00f6nemli bilgiler elde eder.<\/p>\n
Kalpteki bu elektriksel olay ilk kez 1903 y\u0131l\u0131nda Leyden \u00dcniversitesi’nde Hollandal\u0131 Doktor\u00a0Willem Einthowen taraf\u0131ndan ilkel bir galvanometre arac\u0131l\u0131\u011f\u0131yla saptand\u0131.\u00a0 \u0130lk elektrokardiyografi cihaz\u0131n\u0131 bir galvonometreden geli\u015ftiren Hollandal\u0131 fizyolog Willem Einthowen bu icad\u0131yla Nobel \u00f6d\u00fcl\u00fcn\u00fc kazand\u0131. Geli\u015ftirilen bu ilk cihaz 270 kg a\u011f\u0131rl\u0131\u011f\u0131ndayd\u0131. Elektrokardiyografi cihaz\u0131 geli\u015ftirildik\u00e7e k\u00fc\u00e7\u00fcld\u00fc. Bug\u00fcn art\u0131k elle ta\u015f\u0131nabilen EKG cihazlar\u0131 4.5 kg\u2019dan hafif gelmektedir.<\/p>\n
Ayr\u0131ca daha ileri \u00f6zel kay\u0131t cihazlar\u0131 da mevcuttur. Bu cihazlar\u0131n \u00e7al\u0131\u015fma prensipleri de Einthowen\u2019in ilk cihaz\u0131ndakine benzer. Son zamanlarda bu sahaya bilgisayarlar da girmi\u015f bulunmaktad\u0131r. Ayr\u0131ca EKG\u2019yi ayn\u0131 anda hem k\u00e2\u011f\u0131da kaydetmek hem de g\u00f6r\u00fcnt\u00fclemek (bir ekranda) m\u00fcmk\u00fcnd\u00fcr. Elde edilen bilgileri an\u0131nda okuyup te\u015fhisini veren cihazlar da bulunmaktad\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"
Kalp adalesinin ve sinirsel iletim sisteminin \u00e7al\u0131\u015fmas\u0131n\u0131 incelemek \u00fczere kalpte meydana gelen elektrik faaliyetinin kaydedilmesine Elektrokardiyografi yani k\u0131saca EKG denilmektedir.\u00a0Kalbin vuru\u015flar\u0131, kalp kaslar\u0131ndaki voltaj de\u011fi\u015fimlerinden kaynaklan\u0131r. V\u00fccudun iki noktas\u0131ndan deriye…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[337,1428,338,1427],"class_list":["post-589","post","type-post","status-publish","format-standard","hentry","category-saglik","tag-ekg","tag-elektrokardiyografi","tag-kalp-elektrosu","tag-william-einthoven"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/589"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=589"}],"version-history":[{"count":5,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/589\/revisions"}],"predecessor-version":[{"id":7594,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/589\/revisions\/7594"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}