"Creating an arteriovenous fistula is a small operation on a big patient β the end-stage renal patient carries hyperkalaemia, anaemia, autonomic neuropathy and heart disease into theatre. A well-chosen brachial plexus block sidesteps most of it, provides a sympathectomy that helps the fistula, and protects the airway the patient doesn't need instrumented."
How to use this topic β CritCare.in.Anaesthesia for AV Fistula Creation
The creation of an arteriovenous fistula (radiocephalic "BresciaβCimino" at the wrist, or brachiocephalic at the elbow) is the commonest vascular-access operation in end-stage renal disease for long-term haemodialysis. It is a short, superficial upper-limb procedure β but performed on a patient with the full burden of chronic kidney disease.
- Optimise the potassium and volume status (dialyse the day before, not immediately before), respect the altered drug handling of renal failure, favour a regional (brachial plexus) block β which also gives a helpful sympathectomy β and protect the fistula arm from cuffs, cannulae and hypotension.
The End-Stage Renal Patient
Hyperkalaemia, anaemia, acidosis, fluid status, uraemic platelet dysfunction, cardiovascular disease & autonomic neuropathy.
π02 Β· ASSESSMENTAssessment & Optimisation
Dialysis timing, checking KβΊ & volume, choosing the arm, and the altered pharmacology of renal failure.
π03 Β· RA vs GARegional vs General
Why the brachial plexus block is often preferred (sympathectomy, no airway, analgesia), block choice, and when GA is needed.
π‘οΈ04 Β· FISTULA CAREIntra-op & Protecting the Fistula
Monitoring, no cuff/IV on the fistula arm, maintaining perfusion, heparin & avoiding hypotension.
π05 Β· PEARLSComplications, Mistakes & References
Steal syndrome, thrombosis, high-output failure, common mistakes, exam pearls and references.