A randomised controlled trial of buttonhole cannulation for the prevention of fistula access complications

Josephine Chow1, Glenda Rayment, Susana San Miguel

  • 1Area Cardiovascular Stream, Sydney South West Area Health Service, Australia. Josephine.Chow@sswahs.nsw.gov.au

Insights

The buttonhole cannulation technique for haemodialysis fistulas led to more infections, haematomas, and site pain compared to the traditional rope ladder rotation method. Further research is recommended to fully understand its safety and efficacy.

Area of Science:

  • Nephrology
  • Vascular Access Surgery

Background:

  • Vascular access is crucial for haemodialysis.
  • Minimizing complications and maximizing access longevity are key goals.
  • The buttonhole cannulation technique is an alternative to traditional methods.

Purpose of the Study:

  • To compare the buttonhole cannulation technique with the standard rope ladder rotation technique.
  • To evaluate complication rates and access survival in haemodialysis patients.

Main Methods:

  • A multicentre, prospective, open-label, randomised controlled trial.
  • Seventy subjects were randomised into buttonhole and control groups.
  • Buttonhole group used sharp needles initially, then blunt needles; control group used rope ladder rotation.

Main Results:

  • The buttonhole group experienced more infections (p=0.11) and significantly more haematomas and site pain (p<0.05).
  • No significant difference in infection rates was observed between groups.
  • The rope ladder rotation technique showed fewer complications.

Conclusions:

  • Buttonhole cannulation resulted in increased infections, haematoma formation, and site pain compared to rope ladder rotation.
  • The findings suggest potential drawbacks of the buttonhole technique regarding safety and patient comfort.
  • A larger-scale longitudinal study is recommended to validate these findings.
Abstract

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