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Related Concept Videos

The Aorta01:14

The Aorta

The aorta is the largest artery in the human body. It originates from the left ventricle of the heart and extends down to the abdomen, where it splits into two smaller arteries. Structurally, it can be divided into four main parts: the ascending aorta, the aortic arch, the thoracic aorta, and the abdominal aorta.
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
Fetal Circulation01:14

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Thoracic Aorta01:15

Thoracic Aorta

The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
The Arch of Aorta01:10

The Arch of Aorta

The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Veins of Thorax01:19

Veins of Thorax

The azygos system is a crucial part of the body's circulatory system and drains most of the thorax. It comprises the azygos, hemiazygos, and accessory hemiazygos veins.
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...

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Related Experiment Video

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Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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[Common truncus arteriosus in adults].

Nilda Espínola-Zavaleta1, Luis Muñoz-Castellanos, Rocío González-Flores

  • 1Ecocardiografía en Consulta Externa, Instituto Nacional de Cardiología lgnacio Chávez, Tlalpan, México, DF. niesza2001@hotmail.com

Archivos De Cardiologia De Mexico
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Summary

Adults can survive persistent truncus arteriosus due to specific factors, though survival times for this complex congenital heart disease remain unknown. This study identifies key survival determinants in adult patients.

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Area of Science:

  • Cardiology
  • Congenital Heart Disease

Context:

  • Persistent truncus arteriosus is a rare congenital heart defect.
  • Adult survival with this condition is uncommon and not well-documented.

Purpose:

  • To identify factors enabling survival in adult patients with persistent truncus arteriosus.
  • To describe the clinical characteristics and associated anomalies in these patients.

Summary:

  • Six adult patients with persistent truncus arteriosus (Type I) were studied using clinical history, ECG, echocardiography, and cardiac catheterization.
  • Common findings included pulmonary hypertension, hypoplastic pulmonary arteries, isolated coronary ostium, persistent ductus arteriosus, and right aortic arch.
  • Early onset of symptoms was noted in all patients.

Impact:

  • This study highlights that certain factors, like pulmonary hypertension and hypoplastic pulmonary arteries, can paradoxically permit survival in persistent truncus arteriosus.
  • It underscores the need for further research into the survival timelines and management of adult congenital heart disease.