Aortic stenosis surgery: Difference between revisions

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{{Aortic stenosis}}
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{{CMG}}; '''Associate Editors-In-Chief:''' [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]][mailto:msbeih@perfuse.org]; Claudia P. Hochberg, M.D. [mailto:chochber@bidmc.harvard.edu]; [[User:Abdarabi|Abdul-Rahman Arabi, M.D.]] [mailto:abdarabi@yahoo.com]; [[User:KeriShafer|Keri Shafer, M.D.]] [mailto:kshafer@bidmc.harvard.edu]; [[Priyamvada Singh|Priyamvada Singh, MBBS]] [mailto:psingh@perfuse.org]; '''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@perfuse.org]
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| [[File:Siren.gif|30px|link=Aortic stenosis resident survival guide]]|| <br> || <br>
| [[Aortic stenosis resident survival guide|'''Resident'''<br>'''Survival'''<br>'''Guide''']]
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{{Aortic stenosis surgery}}


==Overview==
'''For the WikiPatient page for this topic, click [[Aortic valve surgery (patient information)|here]]'''
Surgical intervention may be a necessary component of treatment for symptomatic severe aortic stenosis. Intervention methods may include mechanical and device based therapies such as bileaflet mechanical aortic valves. An alternative treatment method includes aortic valvuloplasty or aortic valve repair.


'''For the WikiDoc page of Aortic stenosis, click [[Aortic stenosis|here]]'''


==Surgical treatmnets for Aortic stenosis==
{{CMG}}; '''Associate Editors-In-Chief:''' [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]][mailto:msbeih@wikidoc.org]; [[Priyamvada Singh|Priyamvada Singh, MBBS]] [mailto:psingh13579@gmail.com]; {{USAMA}} '''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [mailto:kfeeney@elon.edu]
==Indications for ==


==Preoperative preparation==
==[[Aortic stenosis surgery overview|Overview]]==


==The procedure==
==[[Aortic stenosis surgery epidemiology and demographics|Epidemiology and Demographics]]==


==Recovery==
==[[Aortic stenosis surgery indications|Indications]]==


==Surgical outcome=
==[[Aortic stenosis surgery preoperative evaluation|Preoperative Evaluation]]==


==Possible complications==
==[[Aortic stenosis surgery procedure|Procedure]]==


==Videos==
==[[Aortic stenosis surgery recovery|Recovery]]==


Mechanical and device based therapy
==[[Aortic stenosis surgery prognosis|Outcomes and Prognosis]]==


==Overview==
==[[Aortic stenosis surgery complications|Complications]]==
Surgical intervention may be a necessary component of treatment. Intervention methods may include mechanical and device based therapies such as bileaflet mechanical aortic valves.


==Mechanical and device based therapy==
==[[Aortic stenosis surgery videos|Videos]]==
Aortic stenosis requires [[aortic valve replacement]] if medical management does not successfully control symptoms.
According to a prospective, single-center, nonrandomized study of 25 patients, percutaneous implantation of an aortic valve prosthesis in high risk patients with aortic stenosis results in marked hemodynamic and clinical improvement when successfully completed.<ref>{{cite journal |author=Grube E, Laborde JC, Gerckens U, ''et al'' |title=Percutaneous implantation of the CoreValve self-expanding valve prosthesis in high-risk patients with aortic valve disease: the Siegburg first-in-man study |journal=Circulation |volume=114 |issue=15 |pages=1616-24 |year=2006 |pmid=17015786 |doi=10.1161/CIRCULATIONAHA.106.639450}}</ref>
 
'''Bileaflet mechanical aortic valve'''
<googlevideo>4541951625687665949&hl=en</googlevideo>
 
 
 
==Overview==
Surgical intervention may be a necessary component of treatment. Intervention methods may include utilizing various techniques of aortic valvuloplasty.
 
==Aortic valvuloplasty==
===Patient selection and treatment choices===
* Surgical Aortic valve replacement is the treatment of choice for aortic stenosis but many patients are not good candidates due to advanced age and multiple co-morbidities
* Percutaneous aortic valve replacement is in its infancy and thus aortic valvuloplasty can offer palliation of symptoms and potentially prolong survival for these high risk patients in class III-IV heart failure
* It can be performed emergently in patients with end-stage heart failure due to aortic stenosis: patients in cardiogenic shock, as a bridge to aortic valve replacement, patients with critical aortic stenosis needing emergent non-cardiac surgery, poor surgical candidates and nonagenerians, patients with congenital or rheumatic aortic stenosis
* Results usually last 6 months up to 2 years (with repeat procedures possible if aortic regurgitation is not severe)
* Valvuloplasty tends to alleviate heart failure symptoms and improve hemodynamics but rarely does it alleviate angina
 
====Technique====
The retrograde technique is the most commonly used technique.
*8 French femoral sheath can usually accommodate a 20 mm balloon and minimizes vascular complications
*Alternatively two 6 Fr sheath from bilateral femoral approach and two smaller balloons can be used
*The letter may be necessary in female elderly patients with concomitant peripheral vascular disease
*0.035” straight wire is commonly used to cross the valve and advance via pig-tail or Amplatz catheter; Right heart catheterization is done and transaortic gradient is typically measured pre-procedure
*The 0.035” wire is then exchanged for a stiffer 0.038”Amplatz exchange length wire with the tip shaped into a pig-tail shape so as not to injure the LV
*The 20-23 mmX 6 cm balloon is advance over the wire and positioned to straddle the aortic valve
*The balloon is manually inflated with a 60 cc syringe containing diluted contrast (slowly)
*Meticulous control of balloon position must be maintained at all times by backward traction on the balloon to prevent jumping forward and injuring/perforating the LV apex


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[[CME Category::Cardiology]]


[[Category:Disease]]
[[Category:Valvular heart disease]]
[[Category:Cardiology]]
[[Category:Cardiology]]
[[Category:Congenital heart disease]]
[[Category:Cardiac surgery]]
[[Category:Surgery]]
[[Category:Surgery]]
[[Category:Cardiac surgery]]
[[Category:Surgical procedures]]
[[Category:Overview complete]]
[[Category:Template complete]]
[[Category:For review]]
[[Category:Mature chapter]]
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Latest revision as of 15:56, 5 January 2017