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Comparison of fluoroscopy time during coronary angiography and interventions by radial and femoral routes- can we decrease the fluoroscopy time with increased experience? An observational study [Anatol J Cardiol]
Anatol J Cardiol. 2011; 11(7): 607-612 | DOI: 10.5152/akd.2011.163  

Comparison of fluoroscopy time during coronary angiography and interventions by radial and femoral routes- can we decrease the fluoroscopy time with increased experience? An observational study

Muhammad Tariq Farman1, Naveed Ullah Khan2, Jawaid Akber Sial3, Tahir Saghir2, Syed Nadeem Hasan Rizvi2, Khan Shah Zaman2
1Catheterization Laboratory, Karachi Institute of Heart Diseases, Karachi
2Catheterization Laboratory, National Institute of Cardiovascular Diseases (NICVD), Karachi
3Department of Cardiology, Chandka Medical College Hospital, Larkana-Pakistan

Objective: Radial route of access is increasingly being used for coronary angiograms and intervention. However, radiation exposure of operators was not known in our set up with either transfemoral or transradial procedures. The objective of the study was to compare related peripheral arterial route radiation exposure of operators by assessing fluoroscopy time. The secondary objective was to determine the relationship of operator experience with fluoroscopy time. Methods: This observational study was conducted in a tertiary care center - Cardiovascular Institute of Karachi (Pakistan) during the period of July 1st 2009 to September 30th 2009. We studied 1016 consecutive adult patients referred for coronary angiography (CA) or percutaneous coronary intervention (PCI). Patients who underwent right heart catheterization or for valvuloplasty were excluded from the study. Out of these 1016 patients, 928 were diagnostic CAs (734 via femoral route [f-CA] and 194 via radial route [r-CA]) and 88 were PCI (64 via femoral route [f-PCI] and 24 via radial route [r-PCI]). Fluoroscopy time was recorded as a surrogate of radiation exposure. Statistical analysis was performed using unpaired t, Mann-Whitney U, Chi-square and ANOVA tests. Results: Mean fluoroscopy time was found to be significantly higher in patients who underwent r-CA (6.33.8 vs 4.02.9 min; p<0.001) and r-PCI (15.111.8 vs 10.37.4 min; p=0.02) as compared with those underwent f-CA and f-PCI. Mean fluoroscopy time of well experienced operators was also high in r-CAs (5.42.9 vs 4.23.5 min; p=0.004). Conclusion: Radial procedures are associated with longer fluoroscopy time that may result in high radiation exposure to radial operators. Even well experienced radial operators cannot minimize their fluoroscopy time to the level of well experienced femoral operators.

Keywords: Coronary angiography, transradial approach, fluoroscopy time


Muhammad Tariq Farman, Naveed Ullah Khan, Jawaid Akber Sial, Tahir Saghir, Syed Nadeem Hasan Rizvi, Khan Shah Zaman. Comparison of fluoroscopy time during coronary angiography and interventions by radial and femoral routes- can we decrease the fluoroscopy time with increased experience? An observational study. Anatol J Cardiol. 2011; 11(7): 607-612


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