Haemodialysis and the need for a line disconnect alarm

HEMOdialert with HEMOsensor for Hemodialysis

Occasionally during haemodialysis the needle connecting the blood line from the dialysis machine may become disconnected from the fistula site. For example, this can happen if a patient who suffers from restlessness, dementia or mental illness deliberately or accidentally removes it from the vascular access.
This can result in blood leaking from the fistula.

Although it is not a common event, such line disconnects can have fatal or life-threatening consequences (Sandroni, 2005)1. This has been a matter of concern for clinicians carrying out haemodialysis, as reported in clinical publications (Lindley, 2005)2.

While the dialysis machine itself may detect a line disconnect due to a pressure drop and trigger an alarm, these alarms are not always reliable.3 Therefore, a back-up means of alerting for a possible blood leak at the fistula site may be appropriate.

Anzacare, with over 25 years' experience in developing patented moisture detectors and alarm systems, has developed such a back-up device in consultation with dialysis clinics in the USA, Canada and the UK. The independently tested HEMOdialert™ is an effective and reasonably-priced blood leak detection alarm and sensor for patients undergoing dialysis.

  1. Sandroni S. Venous needle dislodgement during hemodialysis: an unresolved risk of catastrophic hemorrhage. Hemodialysis International 2005; 9:102
  2. Lindley E.J. Venous needle dislodgement during haemodialysis. Summary of the EDTNA/ERCA Journal Club discussion. EDTNA/ERCA Journal 2005; 31 (4): 220-227.
  3. Van Waeleghem J.P, Chamney M., Lindley J., Pancírová J. (2008). Venous needle dislodgement : how to minimise the risks. Journal of Renal Care 34(4), 163-168.
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