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Ischemic Heart Disease: Overview

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
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Disturbances in Heart Rhythm

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
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Dysrhythmias III: Characteristics of Dysrhythmias

Dysrhythmias III: Characteristics of Dysrhythmias

Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.

Cardiomyopathy V: Interprofessional Care

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...

Ischemic Stroke l: Introduction

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.

Ischemic Stroke ll: Pathophysiology

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...

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Related Experiment Video

Updated: Jun 27, 2026

Myocardial Infarction and Functional Outcome Assessment in Pigs

Myocardial Infarction and Functional Outcome Assessment in Pigs

Published on: April 25, 2014

Right ventricular infarction.

R Roberts, A T Marmor

Annual Review of Medicine

|January 1, 1983

Summary

This summary is machine-generated.

Right ventricular infarction is common in inferior infarction patients. Early fluid administration and hemodynamic monitoring improve prognosis, avoiding diuretics and potentially harmful treatments.

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Myocardial Infarction and Functional Outcome Assessment in Pigs

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Generation and Characterization of Right Ventricular Myocardial Infarction Induced by Permanent Ligation of the Right Coronary Artery in Mice

Generation and Characterization of Right Ventricular Myocardial Infarction Induced by Permanent Ligation of the Right Coronary Artery in Mice

Published on: February 1, 2022

Area of Science:

Cardiology
Cardiovascular Medicine

Background:

Right ventricular (RV) infarction, previously underestimated, is now recognized as a frequent complication of inferior myocardial infarction.
It typically affects the RV's posterior wall, often with concurrent left ventricular posterior wall and interventricular septum injury.

Purpose of the Study:

To highlight the prevalence and clinical implications of RV infarction.
To outline appropriate diagnostic and therapeutic strategies for RV infarction.

Main Methods:

Review of clinical data and diagnostic findings in patients with inferior infarction.
Emphasis on hemodynamic monitoring, radionuclide assessment, and echocardiography.

Main Results:

Severe RV dysfunction can lead to cardiogenic shock, with conventional treatments potentially worsening outcomes.
Avoidance of diuretics and judicious fluid administration are linked to improved prognosis.

Conclusions:

RV infarction requires specific management distinct from isolated left ventricular infarction.
Prompt diagnosis and tailored therapy, including avoiding diuretics and ensuring adequate fluid intake, are crucial for better patient outcomes.