Ga naar de startpagina
Zoek leermateriaalKennis & expertiseCommunities
NL|EN
Privacy policyDeelnemende instellingen
Creative CommonsCreative Commons AttributionSURFFunded by the European Union

Filteren

Zoekresultaten (18)

HBO/WO

MBO

2019

Use of transposition

Document on Use of transposition

Document

Auteur onbekend

2019

Example of transposition

Document on Example of transposition

Document

Auteur onbekend

27 december 2019

Groningen-Leiden - 3D model Transposition, Short Axis Aortic Valve Plane View - numbered English labels

This model shows a cut through a heart with transposition of the great arteries as it would show in a short axis ultrasound plane. In case of a transposition of the main arteries, the places of the two main arteries are switched. The aorta connects to the right ventricle, instead of the left ventricle. The pulmonary trunc connects to the left ventricle, instead of the right ventricle. Because of this, the pulmonary and the systemic circulation, which are normally connected, are separated. The Oxygen-rich blood in the pulmonary circulation flows through the lungs, then via the left atrium and ventricle back into the pulmonary artery and back into the lungs. Deoxygenated blood flows through the body into the caval veins to the right atrium and ventricle into the aorta, back into the aorta.

Website

Anna Sieben, Monique R.M. Jongbloed, Ludo de Goeje, Bonnie Schaafsma, Bert J. Wisse

14 februari 2020

Leiden-Delft-Groningen - 3D model Transposition of the great arteries - open duct - numbered English labels

Transposition of the great arteries is a congenital (present at birth) heart defect. Because of abnormal development of the fetal heart druing the first 8 weeks of pregnancy, the large vessels that carry blood from hte heart to the lungs, and to the body are improperly connected. Essentially, the connections in the heart are ‘swapped’; in transposition of the great arteries, the aorta is connected to the right ventricle and the pulmonary artery is connected to the left ventricle. Because of this, two separate circuits are formed; one that circulates oxygen-poor blood and one that circulates oxygen-righ blood. The presence of other heart defects allows for some mixing of the circulations; An opening in the atrial or ventricular septum will allow oxygen-rich and oxygen-poor blood to mix. Patent ductus arteriosus (the connection between the aorta and the pulmonary artery) such as in this model also allows for some mixing of blood. Because of this, at least some oxygen is provided to the body.

Website

Anna Sieben, Monique R.M. Jongbloed, Ludo de Goeje, Bonnie Schaafsma, Bert J. Wisse

27 december 2019

Leiden-Delft-Groningen - 3D model Transposition of the great arteries - numbered English labels

In a transposition of the main arteries, the two main arteries are switched. The aorta connects to the right ventricle, instead of the left ventricle. The pulmonary trunk connects to the left ventricle, instead of to the right ventricle. Because of this, the pulmonary and the systemic circulation, which are normally connected, are separated. The oxygen-rich blood in the pulmonary circulation flows through the lungs, then via the left atrium and ventricle back into the pulmonary artery and back into the lungs. Deoxygenated blood flows through the body into the caval veins to the right atrium and ventricle into the aorta, back into the aorta. Hence, the oxygen that is breathed in, never reaches the systemic circulation and carbon dioxide produced in the body never reaches the lungs to be expired; a lethal situation.

Website

Anna Sieben, Monique R.M. Jongbloed, Ludo de Goeje, Bonnie Schaafsma, Bert J. Wisse

27 december 2019

Groningen-Leiden - 3D model Transposition, Long Axis Plane view - numbered English labels

This model shows a slice through a heart with transposition of the great arteries as it would show in a long axis ultrasound plane. In case of a transposition of the main arteries, the places of the two main arteries are switched. The aorta connects to the right ventricle, instead of the left ventricle. The pulmonary trunk connects to the left ventricle, instead of the right ventricle. Because of this, the pulmonary and the systemic circulation, which are normally connected, are separated. The oxygen-rich blood in the pulmonary circulation flows through the lungs, then via the left atrium and ventricle back into the pulmonary artery and back into the lungs. Deoxygenated blood flows through the body into the caval veins to the right atrium and ventricle into the aorta, back into the aorta.

Website

Anna Sieben, Monique R.M. Jongbloed, Ludo de Goeje, Bonnie Schaafsma, Bert J. Wisse

27 december 2019

Leiden-Delft-Groningen - 3D model Transposition of the great arteries after switch - numbered English labels

In a transposition of the great arteries, the two main arteries are switched. The aorta connects to the right ventricle, instead of the left ventricle. The pulmonary trunk connects to the left ventricle, instead of to the right ventricle. Because of this, the pulmonary and the systemic circulation, which are normally connected, are separated. The oxygen-rich blood in the pulmonary circulation flows through the lungs, then via the left atrium and ventricle back into the pulmonary artery and back into the lungs. Deoxygenated blood flows through the body into the caval veins to the right atrium and ventricle into the aorta, back into the aorta. Hence, the oxygen that is breathed in, never reaches the systemic circulation and carbon dioxide produced in the body never reaches the lungs to be expired; a lethal situation. The arterial switch surgery is the most common surgery these days to correct a transposition of the great arteries (TGA). What happens during the surgery? The arteries are cut just above the heart valves The coronary arteries are cut from the aorta and attached to the artery that goes to the lungs. The holes in the aorta are closed. The aorta is moved to the base of the pulmonary trunk. This will form the new aorta. The pulmonary trunk is moved and attached to the base of the aorta. These two together will form the new pulmonary artery. This will result in a bloodflow that is similar to the flow from a normal heart.

Website

Anna Sieben, Monique R.M. Jongbloed, Ludo de Goeje, Bonnie Schaafsma, Bert J. Wisse

28 augustus 2021

Leiden - Drawing Congenital heart defects: transposition of the great arteries, ventricular septal defect (open valves) - Dutch labels

Congenital heart defects: transposition of the great arteries (transpositie van de grote vaten), ventricular septal defect (ventrikelseptumdefect). The left drawing shows the normal heart, the middle drawing shows a heart with Transposition of the Great Arteries, and the right drawing shows a heart with both Transposition of the Great Arteries and ventricular septal defect. Note: in this image all heart valves are opened, while in the image without labels the semilunar valves are closed. Dutch labels.

Afbeelding

Ron Slagter, Dr Monique R.M. Jongbloed, Dr. Margot M. Bartelings

5 oktober 2022

Leiden - Drawing Congenital heart defects: transposition of the great arteries, ventricular septal defect (closed semilunar valves) - no labels

Congenital heart defects: transposition of the great arteries (transpositie van de grote vaten), ventricular septal defect (ventrikelseptumdefect). The left drawing shows the normal heart, the middle drawing shows a heart with Transposition of the Great Arteries, and the right drawing shows a heart with both Transposition of the Great Arteries and ventricular septal defect. Note: in this image the semilunar valves are closed, while in the image with labels all valves are open. Version without labels.

Afbeelding

Ron Slagter, Dr Monique R.M. Jongbloed, Dr. Margot M. Bartelings

1 september 2020

6B: Business Mathematics - Matrices

This lecture introduces the concept of matrices. We discuss special matrices, explain operations with matrices, matrix multiplication and matrix transposition and the role of symmetric matrices. We discuss its relevance in economics and business.

Video

Bernd Heidergott, Ines Lindner