The radial artery does not show significant change after transradial coronary interventions

초록

BACKGROUND The radial artery is currently regarded as a useful vascular access site for coronary intervention but there is no known impact of transradial coronary intervention (TRI) regarding the change of radial artery diameter. There were no published data by quantitative artery analysis after the TRI. METHODS From June 2009 to September 2014, consecutive patients underwent TRI and follow-up coronary angiography (FUCA) after TRI were enrolled. We divided radial artery from an elbow to sheath tip into 5 parts (D1, D2, D3, D4 and D5) and analyzed radial artery diameter and minimal luminal diameter (MLD). The primary endpoint was the changes of radial artery diameter. RESULTS Among total 960 patients underwent FUCA, 116 patients underwent FUCA via other site (femoral artery or opposite radial artery) and 201 patients had no radial images or poor radial images. Finally, total 643 patients were analyzed. Before TRI, initial MLD1 was 1.580.52 and diameters were 3.060.63, 2.080.46, 1.960.46, 1.940.44 and 1.900.45 (D11, D12, D13, D14 and D15). MLD2 of FUCA was 1.480.51 and diameters were 3.130.58, 2.090.46, 1.950.45, 1.910.43 and 1.870.43 (D21, D22, D23, D24 and D25). The changes of radial artery size were not significant statistically. (p>0.05) But the change of MLD was statistically significant. (MLD1 vs. MLD2 p¼0.034). CONCLUSION Although the minimal luminal diameter has shown a significant difference, the five measurements taken seem to support the idea that transradial interventions do not affect the radial artery size and the statistically significant difference was only 0.1mm.