Adult surgery, 20% of the MCQ exam

Vascular surgery

Aneurysms, peripheral arterial disease, acute limb ischaemia, carotid disease and venous disease. Time-critical presentations are the focus.

High-yield points

  • Ruptured AAA: pain, hypotension and pulsatile mass; permissive hypotension and straight to theatre or endovascular repair.

  • Elective AAA repair is usually offered at 5.5 cm in men (lower thresholds for women) or rapid growth.

  • Acute limb ischaemia (6 Ps: pain, pallor, pulselessness, paraesthesia, paralysis, perishing cold): heparin and urgent vascular surgery.

  • Peripheral arterial disease: ABI below 0.9; manage with smoking cessation, supervised exercise, statin and antiplatelet.

  • Symptomatic carotid stenosis of 50-99% (especially 70-99%): early carotid endarterectomy within 2 weeks.

  • Diabetic foot: check sensation and pulses, urgent referral for ulcers with infection or ischaemia.

  • Venous ulcers: confirm ABI before compression bandaging.

India vs Australia

Where the answer the AMC marks correct differs from what’s usually taught in Indian MBBS.

  • Diabetic foot

    India (MBBS)

    Very common, often late presentation.

    Australia (AMC): what the exam expects

    Much higher amputation rates in First Nations people. Regular foot checks, podiatry and high-risk foot services are expected.

  • Peripheral arterial disease

    India (MBBS)

    Thromboangiitis obliterans (Buerger's) gets heavy textbook emphasis.

    Australia (AMC): what the exam expects

    Atherosclerosis is the usual cause; Buerger's is rare.

  • VTE anticoagulation

    India (MBBS)

    Warfarin or acenocoumarol, often on cost grounds.

    Australia (AMC): what the exam expects

    DOACs (apixaban, rivaroxaban) are usually first line. Acenocoumarol is not available.

  • AAA screening

    India (MBBS)

    No program.

    Australia (AMC): what the exam expects

    No national program either; targeted ultrasound for higher-risk older people, e.g. older men who smoke.

The Australian context

Diabetes-related foot disease and lower limb amputation rates are much higher among Aboriginal and Torres Strait Islander people. There is no national AAA screening program in Australia.