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Related Concept Videos

Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
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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...
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
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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...
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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
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Published on: March 21, 2013

Syncope in Puerto Rico.

Yolanda Figueroa1, Pablo I Altieri, Héctor Banchs

  • 1Department of Medicine, University of Puerto Rico-Medical Sciences Campus, Cardiovascular Center of Puerto Rico and the Caribbean, Ramón M. Suárez, Calderón.

Boletin De La Asociacion Medica De Puerto Rico
|July 21, 2009
PubMed
Summary
This summary is machine-generated.

Syncope, a common cause of emergency visits, was studied in 186 patients. Cardiac syncope, diagnosed in over 60%, is linked to higher mortality, necessitating better risk stratification.

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Area of Science:

  • Cardiology
  • Neurology
  • Internal Medicine

Background:

  • Syncope is a frequent cause of emergency department visits and hospital admissions.
  • It involves a temporary loss of consciousness and postural tone, followed by spontaneous recovery.
  • Understanding syncope's causes is crucial for patient management and risk assessment.

Purpose of the Study:

  • To analyze the characteristics and etiologies of syncope in patients admitted to a cardiovascular center.
  • To identify the prevalence of different syncope causes within this specific patient population.
  • To inform future risk stratification strategies for syncope.

Main Methods:

  • Retrospective review of medical records of 186 patients diagnosed with syncope.
  • Analysis of patient demographics, clinical characteristics, and identified causes of syncope.
  • Categorization of syncope etiologies into cardiac, noncardiac, and unknown groups.

Main Results:

  • A specific etiology for syncope was identified in 77.5% of patients.
  • Cardiac syncope was the most common diagnosis, found in 60.8% of the study population.
  • A significant portion (22.6%) of syncope cases remained without an identified cause.

Conclusions:

  • Cardiac syncope is prevalent and associated with increased mortality.
  • Current categorization of syncope into cardiac, noncardiac, and unknown groups is supported.
  • Further research is needed for improved risk stratification and management of syncope patients.