Vascular surgery Flashcards
What is the screening for AAA?
Single abdominal ultrasound for MALES aged 65
Screening outcomes: <3 cm: 3-4.4 cm: 4.5-5.4 cm: >=5.5 cm:
<3 cm: NO further action
3-4.4 cm: Rescan every 12 months
4.5-5.4 cm: Rescan every 3 months
>=5.5 cm: Refer w/in 2 weeks to vascular surgery
High rupture risk (>5.5 cm or rapidly enlarging) mx.
2 week referral
Treat with EVAR (endovadcular repair)
ABPI > 1.2:
Calcified stiff arteries: advanced age or PAD
ABPI <0.9:
Likely PAD. <0.5 is severe disease and must referred urgently
At which ABPI is compression bandgaing generally considered acceptable?
ABPI > 0.8
What is a Marjolin’s ulcer:
Squamous cell carcinoma which occurs at sites of chronic inflammation:
Mainly in the lower limb
Arterial ulcer location:
In between toes and heel
Neuropathic ulcer location:
Mx.
Metatarsal head and plantar surface of big toe - pressure locations
Cushioned shoes
Pyoderma gangrenosum
Association?
Where else can this occur?
Inflammatory bowel disease/RA
Can occur at stoma sites
PAD - acute limb ischaemia first investigation:
Handheld arterial doppler.
PAD - acute limb ischaemia second investigation (if doppler signals present)
ABPI
Acute limb ischaemia initial management:
ABCDE approach
Analgesia: IV opioids
IV Unfractioned Heparin
Vascular review
Acute limb ischaemia definitive management:
Thrombolysis
Surgical embolectomy
Angioplasty
Bypass surgery
What ABPI is suggestive of critical limb ischaemia:
<0.5
Critical limb ischaemia
Should contain 1 or more of the following symptoms:
Rest pain in foot for more than 2 weeks
Ulceration
Gangrene
PAD mx.:
STOP smoking Exercise training Treat co-morbidities: Htn, DM, Obesity Statin (80 mg atorvastatin) Clopidogrel
Which anti-platelet should be used as first-line in pts. w/ PAD:
Clopidogrel
Severe PAD tx.:
EVAR - used for short segment stenosis (<10cm)
Surgical revascularisation - open surgical techniques are used for long segment lesions
Drugs for PAD:
Naftidrofuryl oxalate - vasodilator
Cilostazol: PDE III inhibitor
Ruptured AAA diagnosis
Stable pts.
Unstable pts.
CT angiogram
Clinical - straight to theatre for emergency surgical repair
Superficial thrombophlebitis mx.
US to exclude concurrent DVT
Compression stockings
LMWH for 30 days or Fondaparinux 45 days
If LMWH is contraindicated - 8-12 days oral NSAIDS are recommended
Possible definitve tx. for varicose veins
Endothermal ablation
Foam sclerotherapy
Surgical stripping or ligation
What comes first ABPI or doppler scan in suspected acute limb ischaemia
Doppler US
All pts. w/ peripheral arterial disease get:
Clopidogrel and atorvastatin
Claudication affecting the femoral vessels likely to present w/ ___ pain.
Claudication affecting the iliac vessels causes ___ pain.
Femoral
Buttock