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{{Short description|A surgical procedure to correct transposition of the great arteries}}
== Arterial Switch Operation ==


The '''arterial switch operation''' is a complex surgical procedure used to correct [[transposition of the great arteries]] (TGA), a congenital heart defect where the two main arteries leaving the heart are reversed. This operation is typically performed in the first few weeks of life and is considered the standard treatment for TGA.
[[File:Blausen_0046_ArterialSwitchOperation_01.png|Arterial Switch Operation - Step 1|thumb|right]]
The '''arterial switch operation''' is a surgical procedure used to correct [[transposition of the great arteries]] (TGA), a congenital heart defect where the [[aorta]] and the [[pulmonary artery]] are switched from their normal positions. This operation is typically performed in the first few weeks of life and is considered the standard treatment for TGA.


==History==
== History ==
The arterial switch operation was first successfully performed by Dr. [[Jatene]] in 1975. Prior to this, the [[Senning procedure]] and the [[Mustard procedure]] were used, which involved creating a baffle within the atria to redirect blood flow. However, these procedures did not correct the underlying anatomical problem and often led to complications later in life.
The arterial switch operation was first successfully performed by Dr. [[Adib Jatene]] in 1975. Prior to this, the [[Mustard procedure]] and the [[Senning procedure]] were the primary surgical treatments for TGA, but these were palliative rather than corrective.


==Indications==
== Indications ==
The primary indication for the arterial switch operation is [[dextro-transposition of the great arteries]] (d-TGA), where the [[aorta]] and the [[pulmonary artery]] are switched. This condition results in two separate circulatory systems, which is incompatible with life unless there is some mixing of blood, such as through a [[ventricular septal defect]] (VSD) or an [[atrial septal defect]] (ASD).
The primary indication for the arterial switch operation is [[dextro-transposition of the great arteries]] (d-TGA), where the aorta arises from the right ventricle and the pulmonary artery arises from the left ventricle. This anatomical arrangement results in two parallel circulations, which is incompatible with life unless there is mixing of oxygenated and deoxygenated blood.


==Procedure==
== Surgical Technique ==
The arterial switch operation involves several key steps:
The arterial switch operation involves several key steps:


* '''Cardiopulmonary bypass''': The patient is placed on a heart-lung machine to maintain circulation and oxygenation during the surgery.
=== Step 1: Mobilization of the Great Arteries ===
* '''Transection and reattachment''': The aorta and pulmonary artery are transected and reattached to their correct ventricles. The aorta is connected to the left ventricle, and the pulmonary artery is connected to the right ventricle.
[[File:Blausen_0047_ArterialSwitchOperation_02.png|Arterial Switch Operation - Step 2|thumb|left]]
* '''Coronary artery transfer''': The coronary arteries, which supply blood to the heart muscle, are carefully detached from the aorta and reattached to the new aortic root.
The first step involves mobilizing the aorta and pulmonary artery. The [[coronary arteries]] are also carefully dissected from the aorta to be reimplanted later.
* '''Closure''': The heart is closed, and the patient is gradually weaned off the cardiopulmonary bypass machine.


==Postoperative Care==
=== Step 2: Transection and Reanastomosis ===
After the operation, patients require intensive monitoring in a [[pediatric intensive care unit]] (PICU). Common postoperative concerns include [[arrhythmias]], [[myocardial ischemia]], and [[pulmonary hypertension]]. Long-term follow-up is necessary to monitor heart function and detect any late complications.
The aorta and pulmonary artery are transected, and their positions are switched. The aorta is connected to the left ventricle, and the pulmonary artery is connected to the right ventricle. The coronary arteries are then reimplanted into the new aorta.


==Outcomes==
=== Postoperative Care ===
The arterial switch operation has a high success rate, with survival rates exceeding 95% in experienced centers. Most children who undergo the procedure have normal heart function and lead healthy lives. However, some may require additional interventions or surgeries later in life.
[[File:Postop_Jatene_neonate.jpg|Postoperative Jatene procedure in a neonate|thumb|right]]
After the operation, the patient is monitored in the [[intensive care unit]] (ICU). Postoperative care includes managing [[hemodynamics]], preventing [[infection]], and ensuring adequate [[oxygenation]].


==Complications==
== Complications ==
Potential complications of the arterial switch operation include:
Potential complications of the arterial switch operation include:
* Coronary artery insufficiency
* [[Pulmonary artery stenosis]]
* [[Aortic regurgitation]]
* [[Arrhythmias]]


* '''Coronary artery problems''': Due to the reimplantation of the coronary arteries, there is a risk of coronary artery stenosis or occlusion.
== Outcomes ==
* '''Neoaortic root dilation''': Over time, the neoaortic root may dilate, leading to aortic regurgitation.
The arterial switch operation has excellent outcomes with a high survival rate. Most patients lead normal lives with regular follow-up care to monitor heart function.
* '''Pulmonary artery stenosis''': Narrowing of the pulmonary artery can occur at the site of reattachment.


==Related pages==
== Related Pages ==
* [[Congenital heart defect]]
* [[Congenital heart defect]]
* [[Cardiopulmonary bypass]]
* [[Cardiac surgery]]
* [[Pediatric cardiology]]
* [[Transposition of the great arteries]]
 
==Gallery==
<gallery>
File:MMT muscle.jpg|Muscle testing in applied kinesiology
</gallery>


[[Category:Cardiac surgery]]
[[Category:Cardiac surgery]]
[[Category:Congenital heart disease]]
[[Category:Congenital heart disease]]

Latest revision as of 11:22, 23 March 2025

Arterial Switch Operation[edit]

Arterial Switch Operation - Step 1

The arterial switch operation is a surgical procedure used to correct transposition of the great arteries (TGA), a congenital heart defect where the aorta and the pulmonary artery are switched from their normal positions. This operation is typically performed in the first few weeks of life and is considered the standard treatment for TGA.

History[edit]

The arterial switch operation was first successfully performed by Dr. Adib Jatene in 1975. Prior to this, the Mustard procedure and the Senning procedure were the primary surgical treatments for TGA, but these were palliative rather than corrective.

Indications[edit]

The primary indication for the arterial switch operation is dextro-transposition of the great arteries (d-TGA), where the aorta arises from the right ventricle and the pulmonary artery arises from the left ventricle. This anatomical arrangement results in two parallel circulations, which is incompatible with life unless there is mixing of oxygenated and deoxygenated blood.

Surgical Technique[edit]

The arterial switch operation involves several key steps:

Step 1: Mobilization of the Great Arteries[edit]

Arterial Switch Operation - Step 2

The first step involves mobilizing the aorta and pulmonary artery. The coronary arteries are also carefully dissected from the aorta to be reimplanted later.

Step 2: Transection and Reanastomosis[edit]

The aorta and pulmonary artery are transected, and their positions are switched. The aorta is connected to the left ventricle, and the pulmonary artery is connected to the right ventricle. The coronary arteries are then reimplanted into the new aorta.

Postoperative Care[edit]

Postoperative Jatene procedure in a neonate

After the operation, the patient is monitored in the intensive care unit (ICU). Postoperative care includes managing hemodynamics, preventing infection, and ensuring adequate oxygenation.

Complications[edit]

Potential complications of the arterial switch operation include:

Outcomes[edit]

The arterial switch operation has excellent outcomes with a high survival rate. Most patients lead normal lives with regular follow-up care to monitor heart function.

Related Pages[edit]