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Related Concept Videos

Introduction Cardiac Emergencies01:30

Introduction Cardiac Emergencies

Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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Decreased pulse rate01:14

Decreased pulse rate

Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with bradycardia...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...

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Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
14:09

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Published on: March 21, 2013

Cardiac syncope.

Joseph Anderson1, Peter O'Callaghan

  • 1The Alan Richens Epilepsy Unit, University Hospital of Wales, Cardiff, United Kingdom.

Epilepsia
|November 17, 2012
PubMed
Summary
This summary is machine-generated.

Cardiac syncope, a cause of transient loss of consciousness (T-LOC), poses a high risk of sudden death. Early recognition and risk stratification are crucial for preventing these predictable and preventable events.

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Area of Science:

  • Cardiology
  • Neurology
  • Emergency Medicine

Background:

  • Transient loss of consciousness (T-LOC) is frequently misdiagnosed, with non-neurological conditions often presenting as neurological disorders.
  • Cardiac syncope is a critical diagnosis in T-LOC, carrying a significantly higher risk of sudden death compared to noncardiac syncope.
  • Sudden unexpected death in epilepsy (SUDEP) is a concern, but cardiac syncope presents a more predictable and preventable risk of mortality.

Purpose of the Study:

  • To guide non-cardiologists in recognizing cardiac syncope.
  • To differentiate cardiac syncope from benign cardiovascular causes and seizures/epilepsy.
  • To outline strategies for predicting and preventing sudden death in patients with cardiac syncope.

Main Methods:

  • Clinical history and physical examination.
  • Risk stratification protocols.
  • 12-lead electrocardiography (ECG).

Main Results:

  • Patients with cardiac syncope face a six-fold higher risk of sudden death within 12 months compared to those with noncardiac syncope.
  • Cardiac syncope is often predictable and preventable, unlike some other causes of T-LOC.
  • A systematic approach involving history, examination, risk stratification, and ECG aids in diagnosis and risk assessment.

Conclusions:

  • Accurate diagnosis of cardiac syncope in T-LOC is vital for patient survival.
  • Non-cardiologists can be equipped to identify and manage cardiac syncope through specific assessment tools.
  • Proactive risk assessment and management can significantly reduce mortality associated with cardiac syncope.