Comparative study of the use of diltiazem as an antispasmodic drug in coronary angiography via the transradial approach
AUTOR(ES)
Mont'Alverne Filho, José Ronaldo, Assad, João Alexandre Rezende, Zago, Alexandre do Canto, Costa, Ricardo Leite Vieira da, Pierre, Antonio Guarany Mont'Alverne, Saleh, Mohamed Hassan, Barretto, Rodrigo, Braga, Sérgio Luiz Navarro, Feres, Fausto, Sousa, Amanda Guerra Moraes Rego, Sousa, José Eduardo Moraes Rego
FONTE
Arquivos Brasileiros de Cardiologia
DATA DE PUBLICAÇÃO
2003-07
RESUMO
OBJECTIVE: To evaluate the impact of the use, prior to the procedure, of injectable diltiazem to prevent complications. METHODS: Between September 2000 and July 2001, 50 patients underwent transradial coronary angiography and were randomized to receive placebo (GI) or diltiazem (GII) through a catheter inserted into the radial artery. All patients received isosorbide mononitrate. Ultrasound analyses of the radial artery were performed before examination, 30 minutes afterwards, and 7 days afterwards to evaluate the flow, the diameter, and the artery output. RESULTS: The radial artery diameter of GI was 2.4± 0.5 mm before the procedure and 2.3±0.5 mm after 30 minutes (NS), whereas in GII the diameter was 2.2±0.3 mm before the examination and 2.5±0.4 mm 30 minutes after it (P<0.001). Radial artery output in group 1 was 7.3±5.l2 mL/min before the examination and 6.1±3.5 mL/min 30 minutes after the examination (NS), and GII had an increase of 5.9±2.5 mL/min before examination to 9.05± 7.78 mL/min after the examination (P=0.04). Complications (spasm, occlusion, and partial obstruction) occurred in 4 patients (17.4%) in GI and did not occur in GII (P=0.04). CONCLUSION: The study suggests a decrease in vascular complications through the transradial access for coronary angiography with the use of diltiazem as an antispasmodic drug, resulting in the significant increase in the diameter of the radial artery and radial artery output.
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