Author + information
- Received September 20, 2014
- Accepted October 8, 2014
- Published online March 1, 2015.
- ∗Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan
- †Department of Radiology, Nippon Medical School, Tokyo, Japan
- ‡Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
- ↵∗Reprint requests and correspondence:
Dr. Nobuaki Kobayashi, Intensive Care Unit, Chiba Hokusoh Hospital, 1715 Kamagari, Inzai, Chiba 270-1694, Japan.
A 72-year-old woman was admitted with acute anterior ST-segment elevation myocardial infarction and underwent emergency primary percutaneous coronary intervention (PCI) at the midportion of the left anterior descending coronary artery. After the procedure, she suffered from shock and severe abdominal pain. Enhanced computed tomography showed marked perirenal hematoma (Figure 1). An aortogram revealed that the left kidney was supplied by double renal arteries and that an accessory renal artery originated from the L3–L4 intervertebral disk level and travelled in parallel with the aorta (Figure 2A, Online Video 1). Furthermore, a selective injection demonstrated that the extravasation occurred from the left accessory renal artery (Figures 2B and 2C, Online Video 2). Transcatheter embolization with Gelfoam (Pfizer, Tokyo, Japan) was performed, and final angiograms showed complete embolization of the left accessory renal artery in the absence of extravasation (Figures 3A to 3C, Online Videos 3 and 4).
In the present case, it was suspected that the extravasation was caused during the primary PCI when a 0.035-inch guidewire was used to advance a guiding catheter. Guidewire penetration into the left accessory renal artery went undetected because the accessory renal artery originated from a lower level and traveled in parallel with the aorta. Renal artery variations are common; in a previous report, the frequency of a left accessory renal artery was found to be 13% (1). However, the frequency of left accessory renal arteries originating from regions lower than lumbar spine L3 has been reported to be only 6% of all left accessory renal arteries (1).
For supplemental videos, please see the online version of this article.
The authors have reported that they have no relationships relevant to the contents of this paper to disclose.
- Received September 20, 2014.
- Accepted October 8, 2014.
- American College of Cardiology Foundation