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Cardiac MRI Case 16

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Case number 21 is is going

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to be shown. It's going to skip case number 25

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in the interest of time. We do have adequate cases to

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fill the hour. This is case number 21

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and it belongs to a

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a relatively younger patient. I think

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this patient was aged a nine years old and presented with heart failure

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and chest pain based on these two images. These

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are CTA images. I think you're recognized that this

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is a CTE this two-seater

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reconstructions here.

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But this abnormality may also be shown by MRI we can discuss

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MRI in a minute and the role of MRI in this example, but

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these two pictures belong to cetery constructions

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of a

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young girl who presented a chest pain shortness of breath and

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the correct diagnosis. The first question based on these would be we have

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the polling question. Please enormous left train from

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the right sinus enormous right coronary from the left sinus coronary

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artery fistula and almost left coronary artery than

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pulmonary artery coronary arteriovenous malformation.

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The correct answer will be one of these five.

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Okay, good. Excellent. Very educated audience. Yeah and almost

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left main coronary artery than pulmonary artery as you can see the left

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coronary arteries arising from the pulmonary artery here the right

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coronary artery rises from the right sinus whereas the

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left is not present from the left sinus rises from the pulmonary artery. So what's

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known as Al Capa a LC APA a normal stuffed

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cronary artery from the pulmonary artery and the

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in the subsequent questions, we're going to discuss the physiology and

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that the correction of this disease Al Capa anomalous

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left coronary arteries and pulmonary artery. It's a dangerous malignant to

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normally if not treated the consequences can

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be heart failure shunting mitral insufficiency, Mike

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Holland functional around its function because of fish came

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here. Let's go to the second question pertaining to

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this case. This is a patient.

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Which of the following is a non-malignant coronary anomalies?

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So coronome is a broadly classified into malignant and non-malignment malignant

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if they can cause sudden death or associated with

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severe symptoms and heart failure

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death and non malignant if they're innocuous sub

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inanimalities.

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So one of these is a non-managementality.

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Um, unfortunately the correct answer the analysis is not right. The correct

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answer is 5 anomalous circumflex on the right sinus of the

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Retro iot goes into arterial courses are malignant if they

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left arises from the right side. So the right arise from the left Tenison passes

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between the uterine the pulmonary artery such a vessel can

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be can be can be compressed or compromised the Lumina be

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compromise as it passes between the Iota and the pulmonary artery

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and it's known some malignant to normally whereas if a if

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a vessel which rises from the opposite sinus has a retro

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aortic cause that implies passing behind the your chain

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front of the left atrium. That's a non malignant. Normally Al

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Capa is a malignant to normally the enormous

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left clone realizes from the pulmonary artery. Next question

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will pertain to the physiological discuss. The clinical implications of

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el Cape coronary artery fistula is a malignant normally

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but a coronary artery which arise from the opposite

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sinus and has a retro aortic cause and non

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interior, of course is not a magnet to normally.

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Can we go to case number? I'm going to the last question pertaining

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to this case, please.

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Okay, all the following statements regarding Al Capa True

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except there is one false statement here and I'd

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like for the audience to just spend a minute might have to leave this

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question up and allow the audience to

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To think a little bit.

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So there is one false statement here.

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But therefore true statements. Can we pick out the phone statement?

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Okay, that's a true statement the correct answers actually number four

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the normally costs cause a

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right to left extra cardiac shunt notice. This shunt here is

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from the right from the aorta.

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Through the right coronary artery Across The myocardium and collateral

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vessels into the left ground reality the pulmonary artery the

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two coronary arteries are connected by anastomos in the surface of the heart.

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The one crony in the right arises from a from

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the aorta and the left Horizons from a low pressure circulation of

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the pulmonary artery in this case and because of anastomosis between

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the two coronary arteries blood blood flow growth

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goes from the aorta right coronary artery across the collaterals into

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the left corner in the pulmonary artery. You can see the splash

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here this blush on the CT indicates that indicates a

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direction of the shunt from the left coronary into the

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primary artery the fact the blood into the left corner

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is coming from the Yota. So it's tailing blood from The myocardium aorta

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right coronary artery myocardial surface

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interminecartile vessels left corner

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artery into the pulmonary artery. It creates an extra cardiac

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left to right shunt and because of that

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shunt a lot of the physiology and the clinical consequences ensure. There's

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there's mine cartilage came here because of deshunt into

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the primary artery from the aorta. It's a

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consequences of my college gaming Michael infection muscle that's

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function can occur heart failure can

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eventually ensure so it's an extra cardiac left to

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right.

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Not a right to left turn but they left to right shunt from

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the Yoda into the pulmonary artery across the coronary

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arteries and the collaterals. The other answers are

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correct. If we can just have that all again, please the other

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answers are typically presents in a neonates with heart

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failure and they dilated cardiomyopathy marginal insufficiency

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can occur because of mitral valve

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dysfunction from infarction property muscles can be echogenic on

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echogeography because of infarction chest pain

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and my college came here recognize the presentations because

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of my current steel and blood bling stolen Across The

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myocardium

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The correct answer is number four normally comes

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in extra cardiac right to left shunt and the preferred

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treatment in newborn in infants consists of transferring the coronary artery

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on the left along with the button of

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tissue into the left sinus. So the

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coronary switch or currently button transfer is a

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preferred technique of choice for treatment of an El

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Capa abnormality. Okay. I think

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this this is the third question pertaining to this case.

Report

Faculty

Anil Attili, MD

Clinical Associate Professor

Michigan Medicine

Tags

Vascular

Coronary arteries

Congenital

Chest CT

Cardiac

CTA