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Aortic stenosis and indication
for non-cardiac surgery
Jean-Pol Depoix, MDAnaesthesiology DepartmentBernard Iung, MDCardiology DepartmentBichat Hospital, Paris, France
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Case History
• 84 year-old woman
• Treated hypertension, prior thyroidectomy.
• Known cardiac murmur
• Preserved autonomy and activity. Asymptomatic
• Recent diagnosis of an adenocarcinoma of left colon
without other malignant location, indication of left
colectomy
• Referred before surgery because of cardiac murmur
• Mid-systolic murmur 3/6, decreased S2
• No signs of congestive heart failure
• Blood pressure 154/60 mmHg
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Chest X-ray and ECG
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Echocardiography: parasternal views
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Echocardiography: apical views
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Mean gradient 42 mmHg LV 51/37 mm, SF 30%V. Max 4.1 m/sec.
Valve area :0.9 cm² (0.56 cm²/m² BSA)
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Coronary angiography
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Summary of case analysis
• Severe aortic stenosisConsistency between:− Aortic valve area < 1.0 cm² and < 0.6 cm²/ m² BSA− Maximum jet velocity ≥ 4 m/sec− Mean gradient ≥ 40 mmHg
• Hypertrophied left ventricle with preserved ejection fraction
• No other cardiac disease
• Asymptomatic
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What do you advise?
1. Contra-indicate colectomy
2. Perform colectomy with primary anastomosis, without treatment of aortic stenosis
3. Consider less invasive surgery: resection + colostomy (Hartmann procedure)
4. Perform balloon aortic valvuloplasty before colectomy
5. Perform TAVI before colectomy
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What do you advise?
1. Contra-indicate colectomy
2. Perform colectomy with primary anatomosis, without treatment of aortic stenosis
3. Consider less invasive surgery: resection + colostomy (Hartmann procedure)
4. Perform balloon aortic valvuloplasty before colectomy
5. Perform TAVI before colectomy
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Rationale for therapeutic decision
• Abdominal surgery is required since it is the only curative treatment of colic cancer
• Less invasive intervention limits haemodynamic stress but impairs quality of life (Hartmann procedure was the first option of the referring team)
• Risk assessment should take into account:− The risk of abdominal surgery− The risk of cardiac complications due to aortic stenosis− The risk and consequences of treating aortic stenosis before
abdominal surgery
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30-day cardiac death and myocardial infarction
Evaluation of the risk of non-cardiac surgery
30-day rates of cardiac death and myocardial infarction
Guidelines for pre-operative cardiac risk assessment and perioperative cardiac management in non-cardiac surgery. Eur Heart J 2009;30:2769-812.
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Therapeutic options for aortic stenosis
• Low risk of complications of intermediate risk non-cardiac surgery No death or myocardial infarction in a series of 30 asymptomatic patients with severe aortic stenosis undergoing non cardiac surgery (>75% at intermediate-risk)(Calleja et al. Am J Cardiol 2010;105:1159-63)
• Treatment of AS before non-cardiac surgery is considered only in symptomatic patients or for high-risk surgery
Guidelines on the management of valvular heart disease (version 2012). Eur Heart J 2012;33:2451-496.
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Therapeutic options for aortic stenosis
• Risk of aortic valve replacement− Euroscore I: 10.1%− Euroscore II: 1.7%
• The only reason to favour TAVI over surgical aortic valve replacement would be more rapid recovery.
Take into account the risk of TAVI and the need for antiplatelet drugs.
• Balloon aortic valvuloplasty may be considered in patients with symptomatic severe AS who require urgent major non-cardiac surgery (IIbC)
No indication in this case
Guidelines on the management of valvular heart disease (version 2012). Eur Heart J 2012;33:2451-496.
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www.escardio.org/guidelines
Management of severe aortic stenosis and elective non-cardiacsurgery according to patient characteristics and the type of surgery
Non-cardiacsurgery
under strictmonitoring
Severe AS and need for elective non-cardiac surgery
No Yes
Low-moderate High
Patient risk for AVR Patient risk for AVR
High Low Low High
Non-cardiacsurgery
AVR beforenon-cardiac
surgery
Non-cardiac surgeryunder strict monigoring
Consider BAV/TAVI
Symptoms
Risk of non-cardiac surgery
European Heart Journal 2012 - doi:10.1093/eurheartj/ehs109 & European Journal of Cardio-Thoracic Surgery 2012 -
doi:10.1093/ejcts/ezs455).
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Therapeutic decision
• Multidisciplinary meeting (anaesthesiologist, cardiologist, surgeon)
• Decision of left colectomy with primary anastomosis without prior treatment of aortic stenosis
• Direct contact with the anaesthesiologist in charge of the patient
• Specificities of anesthesia• Choice of anaesthetic drugs• Cardiac monitoring• Post-operative care
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Outcome
• Left colectomy with primary anastomosis– Invasive arterial blood pressure monitoring using a
radial catheter– Anaesthesia: hypnomidate, atracrium, desflurane and
remifentanil (short action opioid)
• Stable haemodynamic during anaesthesia
• Extubation at the end of abdominal surgery
• Uneventful post-operative course
• Patient discharged at home. She remains asymptomatic
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Take-Home messages
• Aortic stenosis should be carefully evaluated in elderly patients needing non-cardiac surgery because of the risk of cardiac complications
• In severe AS, risk stratification should take into account:
− Symptoms− Indication for non-cardiac surgery (vital vs. functional)− The risk of cardiac complications according to the type of surgery− The risks inherent to the treatment of AS
• Intermediate and low-risk surgery can be performed safely in asymptomatic patients, provided appropriate anaesthetic management is planned
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Join the ESC Working Group
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