Pulse oxymetry evaluation of oxygen saturation in the upper extremity with an arteriovenous fistula before and during hemodialysis

Ulnar‐basilic Fistula: Indications, Surgical Aspects, Puncture Technique, and Results

“…A positive Allen's test in such a setting would absolutely contraindicate UBF creation. As the presence of an enlarged common interosseus may reduce the sensitivity of Allen's test (15), the clinical evaluation should be complemented with noninvasive tests, such as arterial Doppler sonography (16) and pulse oxymetry (17). It is also worth mentioning that we successfully created a UBF in 2 nondiabetic patients with history of prior BCF in whom no evidence of significant arterial stenosis at the former anastomosis site or basilic vein occlusion was found preoperatively.…”

Upper extremity arteriovenous fistula does not affect pulse oximetry readings

“…The upper extremity with AVF showed a lower quality of SpO 2 waveform indicated by the number of stars 1–3 on the monitor. The median pulse oximeter measurement was 96% in the AVF side, which in comparison with 97% on the contralateral side revealed a difference that was not significant ( P = 0.053).…”

“…A study by Lin et al . showed decreased oxygen saturation (SaO 2 ) distal to an AVF that resulted in ischaemic pain in some patients during haemodialysis 1 . Pesola and Bugal reported a case of reduced SpO 2 in the cyanotic hand of a patient with an AVF, 2 but reported no difference in the SpO 2 measured in the hands of 11 other patients with AVF.…”

Nerve conduction changes following arteriovenous fistula construction in hemodialysis patients

“…In contrast, pulmonary hypertension is not associated with optimal AVF functioning [12]. Decreased oxygen saturation (SaO 2 ) distal to AVF has been found in some patients during HD, and predialysis inter-arms SaO 2 difference of 4% or more has been reported as a predictive factor [13]. Uremic patients show a clearly greater resistance to ischemia than normal subjects, but less than diabetics, and that is considered a pathological but not a favorable defense mechanism [14].…”