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Related Concept Videos

Location and Orientation of the Heart01:13

Location and Orientation of the Heart

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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.
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Imbalances in Cardiac Output01:26

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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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Heart Failure III: Clinical Manifestations01:26

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Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
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Cardiovascular System Abnormal Findings I: Inspection and Palpation01:29

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In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
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Overview of the Heart01:07

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The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
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Heart Failure I: Introduction01:27

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Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
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Updated: Apr 16, 2026

Implantation of Total Artificial Heart in Congenital Heart Disease
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Implantation of Total Artificial Heart in Congenital Heart Disease

Published on: July 18, 2014

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An unusually heavy heart.

Gemina Doolub1, Khoolseeduth Doolub2

  • 1Severn Deanery, Bristol, UK.

Case Reports in Oncology
|March 13, 2015
PubMed
Summary
This summary is machine-generated.

A large left atrial myxoma caused breathlessness and leg swelling in a 47-year-old woman. Surgical resection of the cardiac tumor led to excellent recovery, highlighting effective management of this rare condition.

Keywords:
Cardiac tumourEchocardiogramIntra-atrial massesMyxomaNeoplasm

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Oncology

Background:

  • Cardiac myxomas are rare primary tumors of the heart, often located in the left atrium.
  • Symptoms can be insidious, including dyspnea and edema, mimicking other cardiac conditions.

Observation:

  • A 47-year-old female experienced progressive dyspnea and lower extremity edema over 12 months.
  • Initial electrocardiogram (ECG) and chest X-ray findings were non-specific.
  • Echocardiography revealed a large left atrial myxoma.

Findings:

  • The left atrial myxoma was successfully resected surgically.
  • The patient experienced significant postoperative improvement.
  • The case underscores the diagnostic utility of echocardiography in identifying cardiac tumors.

Implications:

  • This case highlights the importance of considering cardiac myxoma in patients with unexplainedcardiac symptoms.
  • Timely surgical management of left atrial myxomas leads to favorable outcomes.
  • Further research into the etiology and optimal long-term surveillance of cardiac myxomas is warranted.