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Related Concept Videos

Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
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Mechanism of Cardiac Arrhythmias01:28

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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Heart Sounds01:15

Heart Sounds

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Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V)...
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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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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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Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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Cardiomyopathy II: Dilated Cardiomyopathy01:30

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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,...
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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

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A cardiac cause for deafness.

Kushal Naha1, G Vivek, Ranjan K Shetty

  • 1Department of Medicine, Kasturba Medical College, Manipal University, Manipal, Karnataka, India.

BMJ Case Reports
|October 30, 2013
PubMed
Summary
This summary is machine-generated.

A diabetic man with heart disease experienced sudden deafness due to bilateral temporal lobe strokes. This case highlights cardioembolic stroke as a crucial consideration for neurological symptoms in cardiac patients.

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Area of Science:

  • Neurology
  • Cardiology
  • Otolaryngology

Background:

  • A 49-year-old male with diabetes and myocardial infarction history presented with 2 weeks of deafness.
  • Initial otorhinolaryngology assessment suggested sensorineural hearing loss.

Observation:

  • Cardiac evaluation revealed an apical left ventricular clot.
  • Neurological reassessment and cranial MRI indicated cortical deafness and auditory agnosia.
  • Bilateral temporal infarcts were identified as the cause.

Findings:

  • Doppler and MRI excluded carotid artery thrombosis.
  • The temporal infarcts were determined to be of cardioembolic origin.
  • This case underscores the link between cardiac conditions and neurological deficits.

Implications:

  • Cardioembolic stroke should be considered in patients with cardiac disease presenting with neurological symptoms.
  • This diagnosis is critical for appropriate management and prevention of further embolic events.
  • Highlights the importance of a multidisciplinary approach in complex cases involving cardiac and neurological systems.