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Related Concept Videos

Venous Return01:04

Venous Return

The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system as it...
Chambers of the Heart01:16

Chambers of the Heart

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.
Deoxygenated blood from the body is received in the right...
Overview of Systemic Veins01:11

Overview of Systemic Veins

Systemic veins are crucial blood vessels that return deoxygenated blood from various body tissues back to the heart. There are three systemic veins that return deoxygenated blood to the heart, they are as follows.
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Veins01:17

Veins

Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
Structure of Veins:
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Anatomy of the Brain: Ventricles01:18

Anatomy of the Brain: Ventricles

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Development of the Heart

The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
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[Exclusion of venous ventricle. Evolution and challenges].

Juan Calderón-Colmenero1, Jorge L Cervantes, Samuel Ramírez Marroquín

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Summary

The evolution of cardiovascular surgery and pediatric cardiology reveals a historical understanding of right ventricle dispensability. This concept has improved comprehension of congenital heart defects and univentricular physiology.

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Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Medical History

Background:

  • Historically, erroneous Galenic concepts dominated cardiovascular understanding.
  • Scientific advancements in the 19th and 20th centuries led to a better grasp of cardiovascular anatomophysiology.
  • The concept of right ventricle dispensability has been a persistent, albeit evolving, idea.

Purpose of the Study:

  • To provide a historical review of the concept of right ventricle dispensability.
  • To analyze the lessons learned from the evolution of this concept in cardiovascular surgery and pediatric cardiology.
  • To discuss the implications for understanding congenital heart malformations and univentricular physiology.

Main Methods:

  • Historical literature review.
  • Analysis of key concepts and their evolution in cardiovascular surgery.
  • Case study examples, including the Fontan procedure, to illustrate learned lessons.

Main Results:

  • The understanding of cardiovascular anatomy and physiology has significantly progressed over centuries.
  • The concept of right ventricle dispensability has been crucial in understanding hemodynamics in congenital heart disease.
  • The Fontan procedure exemplifies the application of knowledge gained regarding single-ventricle physiology.

Conclusions:

  • The historical perspective on right ventricle dispensability offers valuable insights into congenital heart malformations.
  • Continued research is essential for a complete understanding of pulmonary vasculature and univentricular physiology.
  • Lessons learned underscore the importance of evolving concepts in pediatric cardiology and cardiovascular surgery.