Pre Operative Evaluation

 

 

    As usual history, examination and special investigations. 

History

Examination

Special Investigations

Risk Scoring Systems


History

 

Can be divided up into:

Aortic specific questions

Pain, although majority are off course pain free. A large number have long existing back pain, which should be distinguished from the pain of the aneurysm. Beware of metastatic spinal lesions eg prostate in old men.

Cardiac specific questions

Shortness of breath and anginal symptoms secondary to aortic and mitral valve disease and coronary artery disease.

 

General medical questions

As in any other assessment of a cardiac surgical patient. Particular attention needs to be paid top performance status and respiratory function, especially in patients who may need a thoracotomy as part of their aortic surgery. Any history of stomach ulcers or bleeding diathesis, as this will influence the type of valve replacement or potential for repair that needs performing.


Examination

Obviously you examine the patient from head to toe. Specific points in aortic surgery include:

Palpate all pulses, and listen for bruits, particularly carotid and femoral.

Listen for cardiac murmurs, and examine for signs of heart failure.

Examine the lung fields, would they benefit from a chest referral.

Are the legs ok for saphenous vein harvest.


Special Investigations

 

CXR

Pulmonary Function Tests

FBC    Looking for anaemia, polycythaemia, neutropenia, leukaemia, thrombocytopenia, thrombocytosis.

Clotting    Looking for evidence of warfarin therapy, Haemophilia, VonWillibrands, Christmas disease, and Lupus anticoagulant

U&E    Looking for renal failure (Calculate GFR, Cockcroft Gault equation), effect of diuretics.

LFTs    Looking for effects of alcoholism, right heart failure, even liver metastasis

Glucose    Diabetes, a major risk factor for post operative deaths.

Aortic Surgery Echocardiography

Transoesophageal Echo

Angiogram

CT 

MRI

 


Risk Scoring Systems

 

Parsonnet

Additive Euroscore

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