{"id":70868,"date":"2017-05-22T15:06:47","date_gmt":"2017-05-22T15:06:47","guid":{"rendered":"http:\/\/humanitasnet-new.local\/malattie\/bradicardia\/"},"modified":"2025-01-13T02:49:58","modified_gmt":"2025-01-13T02:49:58","slug":"bradicardia","status":"publish","type":"disease","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/diseases\/bradicardia\/","title":{"rendered":"Bradicardia"},"content":{"rendered":"<p>Bradicardia este cunoscut\u0103 ca fiind un ritm cardiac lent. &Icirc;n acest caz inima bate de obicei mai pu\u021bin de 60 de ori pe minut, spre deosebire de o inim\u0103 normal\u0103 ce prezint\u0103 &icirc;ntre 60 \u0219i 100 b\u0103t\u0103i pe minut la un adult &icirc;n stare de repaus. Bradicardia poate fi o problem\u0103 grav\u0103 pentru persoanele ale c\u0103ror inimi nu pompeaz\u0103 suficient s&acirc;nge bogat &icirc;n oxigen &icirc;n organism. Totu\u0219i, pentru unii oameni bradicardia nu provoac\u0103 simptome sau complica\u021bii.<\/p>\n<h2>\nSimptome<\/h2>\n<p>Persoanele care sufer\u0103 de bradicardie nu primesc o cantitate suficient\u0103 de oxigen la creier \u0219i alte organe. Drept rezultat, ei pot experimenta urm\u0103toarele simptome:<br \/>\nAme\u021beal\u0103<br \/>\nOboseal\u0103<br \/>\nSl\u0103biciune<br \/>\nStare de le\u0219in<br \/>\nInsuficien\u021b\u0103 respiratorie<br \/>\nDureri &icirc;n piept<br \/>\nDezorientare<\/p>\n<h2>\nCauze<\/h2>\n<p>Bradicardia apare atunci c&acirc;nd ceva perturb\u0103 impulsurile electrice normale ce controleaz\u0103 ritmul de pompare al inimii. Sunt multe probleme care pot cauza disfunc\u021bii la nivelul sistemului electric al inimii, \u0219i anume:<br \/>\nDeteriorarea \u021besuturilor cardiace datorit\u0103 bolilor cardiace sau atacului de cord<\/p>\n<p>Deteriorarea \u021besuturilor cardiace din cauza &icirc;mb\u0103tr&acirc;nirii<br \/>\nTensiune arterial\u0103 crescut\u0103 (hipertensiune arterial\u0103)<br \/>\nTulbur\u0103ri cardiace prezente la na\u0219tere (defect cardiac congenital)<br \/>\nComplica\u021bii ale opera\u021biilor la inim\u0103<\/p>\n<p>Boli inflamatorii, cum ar fi febra reumatic\u0103 sau lupusul<br \/>\nPrea mult potasiu &icirc;n s&acirc;nge (dezechilibru electrolitic)<br \/>\nInflamarea \u021besutului cardiac (miocardit\u0103)<br \/>\nCre\u0219terea nivelului de fier &icirc;n organe (hemocromatoza)<br \/>\nImpulsuri electrice slabe ale inimii (hipotiroidism)<br \/>\nPerturbarea respira\u021biei &icirc;n timpul somnului (apnee obstructiv\u0103 de somn)<br \/>\nMedicamente<br \/>\nSistemul electric al inimii<\/p>\n<p>&Icirc;n general, dou\u0103 tipuri de probleme provoac\u0103 bradicardia:<br \/>\nTulbur\u0103rile nodului sinoatrial (nodul SA)<br \/>\nTulbur\u0103rile nodului atrioventricular (nodul AV)<\/p>\n<p>Nodul sinoatrial (nodul SA) este situat &icirc;n atriul drept \u0219i controleaz\u0103 ritmul inimii. Nodul atrioventricular (nodul AV) ajut\u0103 la transmiterea unui semnal c\u0103tre un ansamblu specializat de celule denumite fasciculul His, \u0219i aceste celule transmit apoi semnalul spre ramura st&acirc;ng\u0103 care deserve\u0219te ventriculul st&acirc;ng \u0219i c\u0103tre ramura dreapt\u0103 care deserve\u0219te ventriculul drept. Acestea la r&acirc;ndul lor transmit ventriculelor s\u0103 se contracteze \u0219i s\u0103 pompeze s&acirc;ngele, iar ventriculul drept trimite s&acirc;nge s\u0103rac &icirc;n oxigen la pl\u0103m&acirc;ni, iar ventriculul st&acirc;ng trimite s&acirc;nge bogat &icirc;n oxigen c\u0103tre organism. Bradicardia apare atunci c&acirc;nd aceste semnale electrice &icirc;ncetinesc sau sunt blocate.<\/p>\n<p>Probleme la nodul sinusal<br \/>\nBradicardia &icirc;ncepe adesea la nodul sinusal. Un ritm al inimii lent poate s\u0103 apar\u0103 datorit\u0103:<br \/>\nEliberarea impulsurilor electrice se face mai lent<br \/>\n&Icirc;ntreruperea sau neputin\u021ba de a elibera impulsurile &icirc;ntr-un ritm normal<br \/>\nEliberarea unui impuls electric blocat &icirc;nainte s\u0103 provoace contrac\u021bia atriilor<br \/>\nBloc cardiac (bloc atrioventricular)<br \/>\nBradicardia poate ap\u0103rea, de asemenea, deoarece semnalele electrice transmise prin atrii nu sunt transmise c\u0103tre ventricule, la r&acirc;ndul lor provoc&acirc;nd blocarea inimii. Aceste blocuri cardiace sunt clasificate &icirc;n func\u021bie de gradul &icirc;n care semnalele ce pornesc de la atrii ajung la principalele camere de pompare ale inimii (ventricule).<\/p>\n<p>Blocul cardiac de gradul I: toate semnalele electrice din atrii ajung la ventricule, dar semnalul este &icirc;ncetinit u\u0219or. Blocul cardiac de grad I este o form\u0103 u\u0219oar\u0103 \u0219i, de obicei, nu necesit\u0103 tratament.<\/p>\n<p>Blocul cardiac de gradul II: Nu toate semnalele electrice ajung la ventricule. Unele b\u0103t\u0103i sunt reduse, av&acirc;nd drept rezultat un ritm mai lent \u0219i uneori neregulat.<\/p>\n<p>Blocul cardiac de gradul III (complet): Niciunul dintre impulsurile electrice din atrii nu ajunge &icirc;n ventricule. &Icirc;n acest caz, fasciculul His sau alte \u021besuturi ale ventriculului &icirc;ncep s\u0103 func\u021bioneze ca stimulatoare cardiace de substitu\u021bie pentru ventricule. Aceast\u0103 situa\u021bie are drept rezultat un impuls electric lent \u0219i uneori incorect &icirc;n camerele de pompare ale inimii.<\/p>\n<p>Bloc de ramur\u0103: C&acirc;nd semnalele electrice sunt blocate &icirc;n apropierea cap\u0103tului producerii de impulsuri electrice. Severitatea unui bloc de ramur\u0103 depinde de locul &icirc;n care sunt afectate ambele ramuri, st&acirc;ng\u0103 \u0219i dreapt\u0103, precum \u0219i de prezen\u021ba altor tipuri de blocuri cardiace, \u0219i de gradul de afectare a \u021besutului inimii.<\/p>\n<h2>\nComplica\u0163ii<\/h2>\n<p>Complica\u021biile bradicardiei netratate variaz\u0103 &icirc;n func\u021bie de c&acirc;t de lent este ritmul cardiac \u0219i de ce tip de leziune poate provoca \u021besutului inimii. Eventualele complica\u021bii ale unui ritm cardiac lent sunt:<br \/>\nFrecvente st\u0103ri de le\u0219in<br \/>\nIncapacitatea inimii de a pompa suficient s&acirc;nge (insuficien\u021b\u0103 cardiac\u0103)<br \/>\nStop cardiac brusc sau moartea subit\u0103<\/p>\n<h2>\nFactori de risc<\/h2>\n<p>Exist\u0103 mul\u021bi factori de risc &icirc;n privin\u021ba persoanelor care se confrunt\u0103 cu afec\u021biuni cardiace. Unii dintre ace\u0219ti factori de risc sunt:<br \/>\nV&acirc;rsta: bradicardia apare mai frecvent la adul\u021bii &icirc;n v&acirc;rst\u0103 cu probleme cardiace<br \/>\nTensiune arterial\u0103 mare<br \/>\nFumat<br \/>\nAbuzul de alcool<br \/>\nConsumul de droguri recrea\u021bionale<br \/>\nComportamentul psihologic<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"profilaxie\">Profilaxie<\/h2>\n<p>Sunt multe metode eficiente de prevenire a bradicardiei \u0219i de reducere a riscului bolilor de inim\u0103. Unele din m\u0103surile urm\u0103toare pot fi luate pentru eliminarea factorilor de risc:<br \/>\nExerci\u021bii fizice regulate<br \/>\nP\u0103strarea unei diete s\u0103n\u0103toase, bogat\u0103 &icirc;n fructe, legume si cereale integrale<br \/>\nMen\u021binerea unei greut\u0103\u021bi normale<\/p>\n<p>Men\u021binerea tensiunii arteriale \u0219i a colesterolului sub control<br \/>\nEliminarea fumatului<br \/>\nConsumul moderat de alcool<\/p>\n<p>Stoparea consumului de droguri recrea\u021bionale<br \/>\nControlul stresului \u0219i &icirc;nv\u0103\u021barea unor tehnici de rezisten\u021b\u0103 la stres<\/p>\n<p>Stabilirea controalelor necesare pentru examenele fizice \u0219i raportarea simptomelor c\u0103tre medic<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-70868","disease","type-disease","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bradicardia - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bradicardia - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Bradicardia este cunoscut\u0103 ca fiind un ritm cardiac lent. &Icirc;n acest caz inima bate de obicei mai pu\u021bin de 60 de ori pe minut, spre deosebire de o inim\u0103 normal\u0103 ce prezint\u0103 &icirc;ntre 60 \u0219i 100 b\u0103t\u0103i pe minut la un adult &icirc;n stare de repaus. 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