Patent ductus arteriosus surgery
|
Patent Ductus Arteriosus Microchapters |
|
Differentiating Patent Ductus Arteriosus from other Diseases |
|---|
|
Diagnosis |
|
Treatment |
|
Medical Therapy |
|
Case Studies |
|
Patent ductus arteriosus surgery On the Web |
|
American Roentgen Ray Society Images of Patent ductus arteriosus surgery |
|
Risk calculators and risk factors for Patent ductus arteriosus surgery |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Priyamvada Singh, M.B.B.S. [2], Cafer Zorkun, M.D., Ph.D. [3]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [4]
Overview
Infants without overt symptoms may simply be monitored as outpatients, while symptomatic PDA can be treated with both surgical and non-surgical methods.[1]. Surgically, the ductus arteriosus may be closed by ligation, wherein the DA is manually tied shut, or with intravascular coils or plugs that leads to formation of a thrombus in the duct. Surgical ligation of the PDA can be accomplished with excellent results in uncomplicated patients. Recent experience with transcatheter closure has also been favorable, being today the procedure of choice for most patients. In certain cases it may be beneficial to the newborn to prevent closure of the ductus arteriosus. For example, in transposition of the great vessels a PDA may prolong the child's life until surgical correction is possible. The ductus arteriosus can be induced to remain open by administering prostaglandin analogs.
Surgical options
The decision about the operative technique used depends on size of duct (left to right shunt) and age and weight of the patient.
- Ligation
- Percutaneous occlusion (Coils, occlusive devices)
- Surgical closure by thoracotomy or sternotomy is indicated in cases where device and coil closures are not possible. These are in conditions like large ductus, infections and aneurysm.
Video-assisted thoracoscopic surgical ligation
The PDA is ligated with the help of a surgical clip via posterolateral thoracotomy approach. .
Advantages-
- Less invasive than thoractomy.
- Safe and effective
Percutaneous occlusion
Percutaneous occlusion is the treatment of choice in the majority of adult patients. It is achieved by two ways-
- Coils - Coils give better results with small ducts compared to large.
- Occlusion devices - 'Amplatzer ductal occluder'(ADO)
Advantages
- It has been found to be successful in moderate and large PDA.
- Patients beyond the neonatal period have better post operative prognosis by this device.
- Gives good results with conical ductus (narrowest segment located at the PA end)
- It can adapt to a variety of ductal sizes and shapes.
Surgical closure by thoracotomy or sternotomy
- Indicated in cases where device and coil closures are not possible.
- In conditions with large ductus, infections and aneurysm.
ACC / AHA Guidelines- Recommendations for Evaluation of the Unoperated Patient (DO NOT EDIT)
| “ |
Class I1. Definitive diagnosis of PDA should be based on visualization by imaging techniques and demonstrations of the shunting across the defect (with or without evidence of clinically significant LV volume overload). (Level of Evidence: C) Class III1. Diagnostic cardiac catheterization is not indicated for uncomplicated PDA with adequate noninvasive imaging. (Level of Evidence: B) 2. Maximal exercise testing is not recommended in PDA with significant PAH. (Level of Evidence: B) |
” |
ACC / AHA Guidelines- Recommendations for Closure of Patent Ductus Arteriosus(DO NOT EDIT)
| “ |
Class I1. Closure of a PDA either percutaneously or surgically is indicated for the following: a. Left atrial and/or LV enlargement or if PAH is present, or in the presence of net left-to-right shunting.(Level of Evidence: C) b. Prior endarteritis. (Level of Evidence: C) 2. Careful evaluation and consultation with ACHD interventional cardiologists is recommended before surgical closure is selected as the method of repair for patients with a calcified PDA. (Level of Evidence: C) 3. Surgical repair, by a surgeon experienced in CHD surgery, is recommended when: a. The PDA is too large for device closure. (Level of Evidence: C) b. Distorted ductal anatomy precludes device closure (eg, aneurysm or endarteritis).42 (Level of Evidence: B) Class III1. PDA closure is not indicated for patients with PAH and net right-to-left shunt. (Level of Evidence: C) Class IIa1. It is reasonable to close an asymptomatic small PDA by catheter device. (Level of Evidence: C) 2. PDA closure is reasonable for patients with PAH with a net left-to-right shunt. (Level of Evidence: C) |
” |
References
- ↑ Zahaka, KG and Patel, CR. "Congenital defects.'" Fanaroff, AA and Martin, RJ (eds.). Neonatal-perinatal medicine: Diseases of the fetus and infant. 7th ed. (2002):1120-1139. St. Louis: Mosby.