Abstract
The aim of the study was to evaluate the occurrence of hand ischemia in patients with radial artery occlusion (RAO), using the contralateral hand as control. Radial artery occlusion is a common complication (6%) after transradial access (TRA) but rarely leads to major ischemic events due to the collateral perfusion of the hand. However, it has been reported that RAO can become symptomatic, possibly as a consequence of hand ischemia. To evaluate the existence of exercise induced hand ischemia in patients with RAO, we initiated the present study. After a transradial coronary procedure, patients with suspicion of RAO were asked for study participation. After informed consent, radial ultrasound was performed. In patients with confirmed RAO, rest perfusion of the digits was analyzed by laser Doppler digital imaging. Occurrence of ischemia during exercise was assessed with transcutaneous oxygen pressure (TcPO2) and thumb capillary lactate. All analyses were performed in both the RAO side as well as the contralateral side as control. RAO occlusion was confirmed in 18 patients. After 5 min of exercise there were no significant differences in TcPO2 (51.4 mmHg [±17.2] vs 43.9 mmHg [±15.5], P = 0.18) or lactate (2.0 mmol/L [±0.7] vs 2.1 m...Continue Reading
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