Abstract
BackgroundThere is a lack of reports in the literature regarding changes in radial artery blood flow after decannulation. The objective of this study was to investigate changes in radial and ulnar artery blood flow after radial artery decannulation using Doppler ultrasound and to explore the factors that influence radial artery blood flow recovery.MethodsIn current observational study, we used colour Doppler ultrasound to measure the cross-sectional area of the radial (SR) and ulnar artery (SU) and peak systolic velocity of the radial (PSVR) and ulnar artery (PSVU) for both hands at four time points in patients with radial artery cannulation: pre-cannulation (T0), 30 min after decannulation (T1), 24 h after decannulation (T2), and 7 days after decannulation (T3). Repeated measures analysis of variance and logistic regression analysis were performed to analyse the data.ResultsOverall, 120 patients were included in the present study. We obtained the following results on the side ipsilateral to the cannulation: compared with T0, the ratio of PSVU/PSVR increased significantly at T1 and T2 (p < 0.01); compared with T1, the ratio of PSVU/PSVR decreased significantly at T2 and T3 (p < 0.01); compared with T2, the ratio of PSVU/PSVR decreased significantly at T3 (p < 0.01). Female sex (OR, 2.76; 95% CI, 1.01–7.57; p = 0.048) and local hematoma (OR 3.04 [1.12–8.25]; p = 0.029) were factors that were significantly associated with the recovery of radial artery blood flow 7 days after decannulation.ConclusionsThere was a compensatory increase in blood flow in the ulnar artery after ipsilateral radial artery decannulation. Female sex and local hematoma formation are factors that may affect the recovery of radial artery blood flow 7 days after catheter removal.
Highlights
There is a lack of reports in the literature regarding changes in radial artery blood flow after decan‐ nulation
Our preliminary experiments showed that the average ratio of Peak systolic velocity of the ulnar artery (PSVU)/ Peak systolic velocity of the radial artery (PSVR) was 1.15, with a standard deviation of 0.25, and an autocorrelation between adjacent measurements of 0.75 on the same individual
Initially, 128 patients were enrolled in the current study; 8 patients were lost to follow-up
Summary
There is a lack of reports in the literature regarding changes in radial artery blood flow after decan‐ nulation. The objective of this study was to investigate changes in radial and ulnar artery blood flow after radial artery decannulation using Doppler ultrasound and to explore the factors that influence radial artery blood flow recovery. In 1981, Doppler ultrasound was used to evaluate blood flow after decannulation for two different methods of radial artery cannulation [11]. Roter et al [12] reported that arterial Doppler assessment was necessary before arterial cannulation to ensure radial artery accessibility in patients with a history of dyslipidaemia, hypertension, smoking and peripheral arterial disease. This study aimed to investigate changes in radial and ulnar artery blood flow using Doppler ultrasound after radial artery decannulation and to explore the factors that influence radial artery blood flow recovery
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