Influence of autologous arteriovenous fistula on the blood supply to the hand in very elderly hemodialyzed patients.
BACKGROUND
Arteriovenous fistula (AVF) creation for hemodialysis (HD) could predispose to local arterial insufficiency of the hand (steal syndrome). Patients with diabetes mellitus, peripheral arterial disease and elderly patients tend to have a higher risk of hand ischemia.


OBJECTIVE
To estimate the influence of AVF on the blood supply to the hands in the elderly population and to identify steal syndrome cases by non-invasive diagnostics (finger photoplethysmography (PPG), pulse volume recording (PVR), Doppler analysis and pulseoxymetry). The evaluation was carried out in 25 random patients (10 females, 15 males) >75 yrs of age (79.6 +/- 3.87 yrs), whose functioning autologous AVFs had been placed at least 1 month previously.


RESULTS
Mean PPG and PVR amplitudes did not differ in statistical analysis (p > 0.05) between hands with and without an AVF. One patient (4%) with end-to-side anastomosis was diagnosed with steal syndrome (typical manifestation confirmed in PPG, Doppler and pulseoxymetry). Two other patients with high brachio-cephalic anastomosis presented subclinical steal syndrome (only low PPG and PVR).


CONCLUSIONS
Even in the very elderly, AVF creation should be considered due to a lesser influence on the blood supply to the hands. Non-invasive diagnostics used by us seemed to be useful in identifying steal syndrome after AVF creation.
Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland. mariok@tlen.pl
M
M
Kusztal
W
W
Weyde
W
W
Letachowicz
T
T
Porazko
M
M
Krajewska
J
J
Penar
M
M
Klinger