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Cardiomyopathy II: Dilated Cardiomyopathy

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,...

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...

Location and Orientation of the Heart

Location and Orientation of the Heart

The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.

Chambers of the Heart

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The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
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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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Related Experiment Video

Updated: Nov 9, 2025

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Published on: February 11, 2022

Structural Heart Issues in Dextrocardia: Situs Type Matters.

Charles J Fox¹, Yenabi Keflemariam², Elyse M Cornett¹

¹Department of Anesthesiology, Louisiana State University Health-Shreveport, Shreveport, LA.

Ochsner Journal

|April 8, 2021

Summary

This summary is machine-generated.

Anesthetic management for dextrocardia patients requires careful consideration of cardiac and respiratory complications. Early identification of associated conditions like atrial septal defects is crucial for optimal patient outcomes.

Keywords:

Anesthesia dextrocardia echocardiography heart septal defects—atrial situs classification

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Last Updated: Nov 9, 2025

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

Area of Science:

Anesthesiology
Cardiology
Congenital Heart Disease

Background:

Dextrocardia, a rare congenital condition, necessitates precise situs classification for effective patient care.
This report details the perioperative anesthetic management challenges in a patient with dextrocardia.

Observation:

A 44-year-old female with dextrocardia presented with symptoms of congestive heart failure.
Echocardiography revealed an atrial septal defect (ASD) with left-to-right shunting, which was surgically repaired.
The patient had a history of hypertension, hyperlipidemia, GERD, and type 2 diabetes.

Findings:

Anesthetic management for dextrocardia is complex, requiring tailored approaches.
Preoperative echocardiography is vital for detecting associated cardiac anomalies.
Proper ECG electrode placement and adjusted central line access are essential.
Consideration for pulmonary hypertension and respiratory complications, potentially linked to primary ciliary dyskinesia, is critical.

Implications:

Anesthesiologists must be vigilant for cardiac and respiratory issues in dextrocardia patients.
Early diagnosis and management of associated conditions improve surgical outcomes.
Understanding the unique anatomical variations is key to safe perioperative care.