Aortoiliac Occlusion in a Rare Instance of Leriche Syndrome Type I in a 65-Year-Old Woman With Chronic Leg Discomfort Refractory to Pregabalin

Abstract

Aortoiliac occlusive disease (AIOD), also known as Leriche syndrome, is a form of peripheral artery disease (PAD) that involves narrowing, and in severe cases, complete occlusion, of infrarenal abdominal aorta and/or iliac and femoropopliteal arteries. It classically presents as a triad of symptoms, i.e., leg pain, erectile dysfunction, and abnormally weak or absent femoral pulses. If untreated, it can progress to ischemia and gangrene of the affected regions of pelvis and lower extremities. Like any other PAD, AIOD is most commonly caused by atherosclerosis and usually occurs in strong association with severe cardiovascular diseases. Due to the rarity of this disease, its incidence and prevalence are still unknown making it harder to diagnose especially in patients without the classic risk factors and typical presentation. We report a case of AIOD in a 65-year-old woman who presented with atypical symptoms. She was diagnosed with AIOD type I upon further investigation, which was managed successfully.

Keywords: aorto-occlusive disease; atherosclerosis; cardio vascular disease; leriche syndrome; peripheral arterial diseases.

Figure 1. Peripheral angiography, arrow pointing at obstruction at the level of aortic bifurcation with no blood flow to the right iliofemoral arteries and diminished blood flow to the left iliofemoral arteries.

Figure 2. CTA, arrow pointing at diminished blood flow to the iliofemoral arteries

CTA: Computed tomography angiography