Ir al contenido principal

Síndrome del seno enfermo

Sick sinus syndrome (also known as sinus node dysfunction) is a group of related heart conditions that can affect how the heart beats. "Sick sinus" refers to the sino-atrial (SA) node, which is an area of specialized cells in the heart that functions as a natural pacemaker. The SA node generates electrical impulses that start each heartbeat. These signals travel from the SA node to the rest of the heart, signaling the heart (cardiac) muscle to contract and pump blood. In people with sick sinus syndrome, the SA node does not function normally. In some cases, it does not produce the right signals to trigger a regular heartbeat. In others, abnormalities disrupt the electrical impulses and prevent them from reaching the rest of the heart.

Descripción

Sick sinus syndrome (also known as sinus node dysfunction) is a group of related heart conditions that can affect how the heart beats. "Sick sinus" refers to the sino-atrial (SA) node, which is an area of specialized cells in the heart that functions as a natural pacemaker. The SA node generates electrical impulses that start each heartbeat. These signals travel from the SA node to the rest of the heart, signaling the heart (cardiac) muscle to contract and pump blood. In people with sick sinus syndrome, the SA node does not function normally. In some cases, it does not produce the right signals to trigger a regular heartbeat. In others, abnormalities disrupt the electrical impulses and prevent them from reaching the rest of the heart.

Sick sinus syndrome tends to cause the heartbeat to be too slow (bradycardia), although occasionally the heartbeat is too fast (tachycardia). In some cases, the heartbeat rapidly switches from being too fast to being too slow, a condition known as tachycardia-bradycardia syndrome. Symptoms related to abnormal heartbeats can include dizziness, light-headedness, fainting (syncope), a sensation of fluttering or pounding in the chest (palpitations), and confusion or memory problems. During exercise, many affected individuals experience chest pain, difficulty breathing, or excessive tiredness (fatigue). Once symptoms of sick sinus syndrome appear, they usually worsen with time. However, some people with the condition never experience any related health problems.

Sick sinus syndrome occurs most commonly in older adults, although it can be diagnosed in people of any age. The condition increases the risk of several life-threatening problems involving the heart and blood vessels. These include a heart rhythm abnormality called atrial fibrillation, heart failure, cardiac arrest, and stroke.

Patrones de herencia

The source lists the following possible inheritance patterns: Autosomal recessive; Autosomal dominant. More than one pattern can apply in different cases.

Otros nombres

Sinus node disease

Sinus node dysfunction

SND

SSS

Related patient information and medicines

Sinusitis aguda

Patient information leaflet

Sinusitis aguda

Sinusitis - also known as a sinus infection - is the swelling of the sinuses, often caused by viral or bacterial infections. Most cases are mild and get better within a few weeks, but chronic sinusitis may require medical treatment. This leaflet explains the symptoms, causes, treatment, and prevention of acute sinusitis. What is sinusitis. Viral.

Congestión nasal

Patient information leaflet

Congestión nasal

Nasal congestion is a blocked, stuffy or bunged-up feeling in the nose. This leaflet deals with the causes and treatment of nasal congestion. What is nasal congestion. Nasal congestion is a bloc... There may be other symptoms along with the blocked nose. What causes nasal congestion. The most common causes of nasal congestion are: Infections: the.

Sinusitis crónica

Patient information leaflet

Sinusitis crónica

Sinusitis crónica es inflammation of the sinuses that lasts a long time, usually defined as 12 weeks or more. It is less common than acute sinusitis, but appears to be getting more common in all age groups. Surgery to improve the drainage of the sinus is an option if other treatments fail, and usually works well. What is chronic sinusitis..

Pólipos nasales

Patient information leaflet

Pólipos nasales

Pólipos nasales son fleshy swellings that grow inside the nose o sinuses. They are usually non-cancerous (benign). The most common symptoms they cause are a stuffy, runny nose. T... The lining of your sinuses is the same as the lining of your nose, so this is why nasal polyps can also form in your sinuses. The medical name for the inflammation of.

Quiste pilonidal

Patient information leaflet

Quiste pilonidal

A pilonidal sinus es an infected tract under the skin between the buttocks. Treatment commonly involves an operation. After the operation it is advised that the area should be kept the area free of growing hair... (A similar condition can occur between the fingers of hairdressers which is caused by customers' hairs entering moist, damaged skin.)..

Rinitis persistente

Patient information leaflet

Rinitis persistente

Anti. They are also usually given to small children instead of a nasal spray. How long is treatment needed for. Rinitis persistente is an ongoing (chronic) condition that usually needs regular tratamiento to prevent symptoms. However, over time the condition may ease and even go completely in some cases. Are there any complications of persistent.

Lecturas adicionales y referencias

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.
  • 18 Aug 2020 | Última versión
  • 1 Aug 2013 | Publicado originalmente

Únete a la conversación

Comparte tus pensamientos o experiencias con otros en nuestro comunidades de pacientes.

Aviso legal: The views expressed in the community do not represent medical advice. For any health concerns, consult your GP or healthcare provider.
verificador de elegibilidad para la gripe

Pregunta, comparte, conecta.

Navega por discusiones, haz preguntas y comparte experiencias en cientos de temas de salud.

Suscríbete al boletín de Patient

Tu dosis semanal de consejos de salud claros y confiables, escritos para ayudarte a sentirte informado, seguro y en control.

Por favor, introduce una dirección de correo electrónico válida

Al suscribirte aceptas nuestros Política de Privacidad. Puedes darte de baja en cualquier momento. Nunca vendemos tus datos.