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Cardiomyopathy I: Introduction and Classification

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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...

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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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Updated: May 9, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

Published on: February 17, 2018

Takotsubo cardiomyopathy.

Tatsuji Kono¹, Hani N Sabbah

¹Department of Cardiovascular Medicine, Soseikai General Hospital, 101 Shimotoba, Hiroosa-machi, Fushimiku, Kyoto, 612-8473, Japan, T.Kono.MD@gmail.com.

Heart Failure Reviews

|August 10, 2013

Summary

Takotsubo cardiomyopathy (TC) is a heart condition that mimics heart attacks but has no artery blockage. It often occurs after stress, especially in older women, and is a reversible heart failure.

Area of Science:

Cardiology
Neurocardiology

Background:

Takotsubo cardiomyopathy (TC) presents as transient left ventricular apical wall motion abnormalities, chest pain, ECG changes, and enzyme release, mimicking acute coronary syndrome.
It occurs after stressful events, particularly emotional stress, and is common in middle-aged and older women.
The exact pathogenetic mechanism of TC remains unclear.

Purpose of the Study:

To summarize the key features and potential pathogenesis of Takotsubo cardiomyopathy.
To highlight the importance of considering TC in the differential diagnosis of acute coronary syndrome.

Main Methods:

Review of existing literature on Takotsubo cardiomyopathy.
Analysis of clinical presentations, potential triggers, and pathogenetic mechanisms.

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Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

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Published on: February 17, 2018

A Doxorubicin-Induced Murine Model of Dilated Cardiomyopathy In Vivo

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Main Results:

TC is characterized by reversible heart failure and is often triggered by catecholamine surge from emotional distress.
It is considered a neurocardiological disorder.
TC is frequently observed in postmenopausal women following acute emotional or physical stress.

Conclusions:

Clinicians should include Takotsubo cardiomyopathy in the differential diagnosis for patients presenting with symptoms suggestive of acute coronary syndrome.
Particular attention should be paid to postmenopausal women with a history of recent stress.
Understanding the neurocardiological aspects of TC is crucial for accurate diagnosis and management.