Third-degree atrioventricular block (original) (raw)
- الإحصار الأذيني البطيني من الدرجة الثالثة هو حالة طبية لا يمكن فيها للنبضات العصبية المتولدة في العقدة الجيبية الأذينية في الأذين أن تنتشر إلى البطينين. بنقطع الطريق أمام النبضات الناشئة في الأذين، ما يدفع ناظمة إضافية في الحجرات السفلية إلى تنشيط البطينين. الأمر الذي يُعرف بنظم الإفلات (على مخطط كهربية القلب). نظرًا لأن الناظمة الإضافية هذه تنشط البطينين أيضًا بشكل مستقل عن النبضات المتولدة في العقدة الأذينية، يمكن ملاحظة نَظمين قلبيين مستقلين على مخطط كهربية القلب (إي سي جّي). * تمثل الموجات ذات الفاصل المنتظم بين الموجتين بّي (بمعنى آخر النظم الجيبي) النظم الأول. * تمثل معقدات كيو آر إس ذات الفاصل المنتظم بين الموجتين آر النظم الثاني. ستكون المسافة بين الموجتين بّي وآر (المسافة بّي آر) متغيرة على مخطط كهربية القلب، إذ إن السمة المميزة للإحصار القلبي التام هي عدم وجود أي علاقة واضحة بين موجات بّي ومعقدات كيو آر إس. (ar)
- Third-degree atrioventricular block (AV block) is a medical condition in which the electrical impulse generated in the sinoatrial node (SA node) in the atrium of the heart can not propagate to the ventricles. Because the impulse is blocked, an accessory pacemaker in the lower chambers will typically activate the ventricles. This is known as an escape rhythm. Since this accessory pacemaker also activates independently of the impulse generated at the SA node, two independent rhythms can be noted on the electrocardiogram (ECG). * The P waves with a regular P-to-P interval (in other words, a sinus rhythm) represent the first rhythm. * The QRS complexes with a regular R-to-R interval represent the second rhythm. The PR interval will be variable, as the hallmark of complete heart block is the lack of any apparent relationship between P waves and QRS complexes. (en)
- Il blocco atrio-ventricolare di III grado (BAV totale) è un disturbo della trasmissione dell'impulso cardiaco. La comunicazione tra il nodo atrio-ventricolare e il fascio di His viene regolarmente arrestato, quindi si ha un completo arresto dell'impulso e i ventricoli non si contraggono più. Questa condizione però è compensata dal fatto che tutte le parti del sistema di conduzione hanno un loro automatismo di scarica, per cui, dopo un periodo di latenza, una zona del sistema di conduzione inizia a generare impulsi ritmici fungendo da pace-maker e i ventricoli ricominciano a contrarsi. (it)
- Bloqueio atrioventricular de terceiro grau ou bloqueio cardíaco completo é uma emergência médica na qual o impulso elétrico natural entre as câmaras superior (átrios) e inferior (Ventrículos) do coração está bloqueado. O impulso normalmente é gerado no nodo sinoatrial(SA) do átrio direito cardíaco e se propaga para o átrio esquerdo e para o Nodo atrioventricular(AV) e depois para ambos ventrículos através do Feixe de His e posteriormente pelas fibras de Purkinje. No mundo, afeta em média 2 a 4 em cada 10.000 pessoas por ano, sendo mais comum em idosos. (pt)
- 第三度房室傳導阻滯(3° AV Block),又稱為完全性房室傳導阻滯(Complete Block),指心房的激動波無法傳入房室結。在此時,心室需自行發出激動波來使心室收縮。 (zh)
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- Il blocco atrio-ventricolare di III grado (BAV totale) è un disturbo della trasmissione dell'impulso cardiaco. La comunicazione tra il nodo atrio-ventricolare e il fascio di His viene regolarmente arrestato, quindi si ha un completo arresto dell'impulso e i ventricoli non si contraggono più. Questa condizione però è compensata dal fatto che tutte le parti del sistema di conduzione hanno un loro automatismo di scarica, per cui, dopo un periodo di latenza, una zona del sistema di conduzione inizia a generare impulsi ritmici fungendo da pace-maker e i ventricoli ricominciano a contrarsi. (it)
- Bloqueio atrioventricular de terceiro grau ou bloqueio cardíaco completo é uma emergência médica na qual o impulso elétrico natural entre as câmaras superior (átrios) e inferior (Ventrículos) do coração está bloqueado. O impulso normalmente é gerado no nodo sinoatrial(SA) do átrio direito cardíaco e se propaga para o átrio esquerdo e para o Nodo atrioventricular(AV) e depois para ambos ventrículos através do Feixe de His e posteriormente pelas fibras de Purkinje. No mundo, afeta em média 2 a 4 em cada 10.000 pessoas por ano, sendo mais comum em idosos. (pt)
- 第三度房室傳導阻滯(3° AV Block),又稱為完全性房室傳導阻滯(Complete Block),指心房的激動波無法傳入房室結。在此時,心室需自行發出激動波來使心室收縮。 (zh)
- الإحصار الأذيني البطيني من الدرجة الثالثة هو حالة طبية لا يمكن فيها للنبضات العصبية المتولدة في العقدة الجيبية الأذينية في الأذين أن تنتشر إلى البطينين. بنقطع الطريق أمام النبضات الناشئة في الأذين، ما يدفع ناظمة إضافية في الحجرات السفلية إلى تنشيط البطينين. الأمر الذي يُعرف بنظم الإفلات (على مخطط كهربية القلب). نظرًا لأن الناظمة الإضافية هذه تنشط البطينين أيضًا بشكل مستقل عن النبضات المتولدة في العقدة الأذينية، يمكن ملاحظة نَظمين قلبيين مستقلين على مخطط كهربية القلب (إي سي جّي). (ar)
- Third-degree atrioventricular block (AV block) is a medical condition in which the electrical impulse generated in the sinoatrial node (SA node) in the atrium of the heart can not propagate to the ventricles. Because the impulse is blocked, an accessory pacemaker in the lower chambers will typically activate the ventricles. This is known as an escape rhythm. Since this accessory pacemaker also activates independently of the impulse generated at the SA node, two independent rhythms can be noted on the electrocardiogram (ECG). (en)
- إحصار أذيني بطيني من الدرجة الثالثة (ar)
- Blocco atrioventricolare di III grado (it)
- Bloqueio atrioventricular do terceiro grau (pt)
- Third-degree atrioventricular block (en)
- 第三度房室傳導阻滯 (zh)
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