Aortic stenosis surgery: Difference between revisions

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(New page: {{Aortic stenosis}} {{CMG}} '''Associate Editors-In-Chief:''' Claudia P. Hochberg, M.D. [mailto:chochber@bidmc.harvard.edu]; Abdul-Rahman Arabi, M.D. [mailto:abdarabi@ya...)
 
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{{Aortic stenosis}}
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{{CMG}}
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{{Aortic stenosis surgery}}


'''Associate Editors-In-Chief:''' 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]]
'''For the WikiPatient page for this topic, click [[Aortic valve surgery (patient information)|here]]'''


'''Assistant Editor-In-Chief:''' [[Kristin Feeney|Kristin Feeney, B.S.]] [[mailto:kfeeney@perfuse.org]]
'''For the WikiDoc page of Aortic stenosis, click [[Aortic stenosis|here]]'''


==Overview==
{{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]
Surgical intervention may be a necessary component of treatment. Intervention methods may include mechanical and devise based therapies such as bileaflet mechanical aortic valves. An alternative treatment method includes aortic valvuloplasty.


==Surgery==
==[[Aortic stenosis surgery overview|Overview]]==
===Mechanical and Device Based Therapy===
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
==[[Aortic stenosis surgery epidemiology and demographics|Epidemiology and Demographics]]==
<googlevideo>4541951625687665949&hl=en</googlevideo>


===Aortic valvuloplasty===
==[[Aortic stenosis surgery indications|Indications]]==
===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====
==[[Aortic stenosis surgery preoperative evaluation|Preoperative Evaluation]]==
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


==References==
==[[Aortic stenosis surgery procedure|Procedure]]==
{{reflist|2}}


[[Category:DiseaseState]]
==[[Aortic stenosis surgery recovery|Recovery]]==
[[Category:Signs and symptoms]]
 
[[Category:Physical Examination]]
==[[Aortic stenosis surgery prognosis|Outcomes and Prognosis]]==
 
==[[Aortic stenosis surgery complications|Complications]]==
 
==[[Aortic stenosis surgery videos|Videos]]==
 
{{WH}}
{{WS}}
[[CME Category::Cardiology]]
 
[[Category:Disease]]
[[Category:Valvular heart disease]]
[[Category:Valvular heart disease]]
[[Category:Cardiology]]
[[Category:Cardiology]]
[[Category:Congenital heart disease]]
[[Category:Congenital heart disease]]
 
[[Category:Cardiac surgery]]
{{WH}}
[[Category:Surgery]]
{{WS}}

Latest revision as of 15:56, 5 January 2017