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. 2011 Apr;16(4):502-8.

Influence of the timing of cardiac catheterization and amount of contrast media on acute renal failure after cardiac surgery

Mohsen Mirmohammad Sadeghi  1 , Mojgan Gharipour, Peiman Nilforoush, Hamid Shamsolkotabi, Hamid Mirmohammad Sadeghi, Amjad Kiani, Pouya Mirmohammad Sadeghi, Niloufar Farahmand
Affiliations

Influence of the timing of cardiac catheterization and amount of contrast media on acute renal failure after cardiac surgery

Mohsen Mirmohammad Sadeghi et al. J Res Med Sci. 2011 Apr.

Abstract

Background: There is limited data about the influence of timing of cardiac surgery in relation to diagnostic angiography and/or the impact of the amount of contrast media used during angiography on the occurance of acute renal failure (ARF). Therefore, in the present study the effect of the time interval between diagnostic angiography and cardiac surgery and also the amount of contrast media used during the diagnostic procedure on the incidence of ARF after cardiac surgery was investigated.

Methods: Data of 1177 patients who underwent different types of cardiac surgeries after cardiac catheterization were prospectively examined. The influence of time interval between cardiac catheterization and surgery as well as the amount of contrast agent on postoperative ARF were assessed using multivariable logistic regression.

Results: The patients who progressed to ARF were more likely to have received a higher dose of contrast agent compared to the mean dose. However, the time interval between cardiac surgery and last catheterization was not significantly different between the patients with and without ARF (p = 0.05). Overall, postoperative peak creatinine was highest on day 0, then decreased and remained significantly unchanged after this period. Overall prevalence of acute renal failure during follow-up period had a changeable trend and had the highest rates in days 1 (53.57%) and 6 (52.17%) after surgery. Combined coronary bypass and valve surgery were the strongest predictor of postoperative ARF (OR: 4.976, CI = 1.613-15.355 and p = 0.002), followed by intra-aortic balloon pump insertion (OR: 6.890, CI = 1.482-32.032 and p = 0.009) and usage of higher doses of contrast media agent (OR: 1.446, CI = 1.033-2.025 and p = 0.031).

Conclusions: Minimizing the amount of contrast agent has a potential role in reducing the incidence of postoperative ARF in patients undergoing cardiac surgery, but delaying cardiac surgery after exposure to these agents might not have this protective effect.

Keywords: Acute Renal Failure; Adverse Effects; Angiography; Cardiac Surgery; Contrast Media; Coronary Artery Bypass Grafting; Iodine Compounds.

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Conflict of interest statement

Conflict of Interests

Authors have no conflict of interests.

Figures

Figure 1
Figure 1
Relationship between the time interval flanked by angiography and surgery and postoperative serum creatinine
Figure 2
Figure 2
Relationship between the time interval flanked by angiography and surgery and postoperative acute renal failure
See this image and copyright information in PMC

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