CIN

Q: Which of the following has a higher risk of contrast-induced nephropathy (CIN)? (select one)

A) interventional coronary angiography
B) CT scan with intravenous (IV) contrast


Answer: A

The objective of above question is to emphasize the point that contrary to popular belief the risk of CIN from CT scan with IV contrast is relatively low even in patients with a lower degree of renal insufficiency.

Interventional coronary angiography is a way bigger risk for CIN due to its emergent nature, not allowing any time for any preventive measure, the patient is usually dehydrated and has hemodynamic instability.

#cardiology
#nephrology
#procedure


References:

1. Jurado-Román A, Hernández-Hernández F, García-Tejada J, et al. Role of hydration in contrast-induced nephropathy in patients who underwent primary percutaneous coronary intervention. Am J Cardiol 2015; 115:1174. 

2. Weisbord SD, Mor MK, Resnick AL, et al. Incidence and outcomes of contrast-induced AKI following computed tomography. Clin J Am Soc Nephrol 2008; 3:1274. 

3. McDonald RJ, McDonald JS, Carter RE, et al. Intravenous contrast material exposure is not an independent risk factor for dialysis or mortality. Radiology 2014; 273:714.