Abstract
Acute aortic occlusion is a rare but life-threatening medical condition that can result from aortic saddle embolism, thrombosis of an atherosclerotic aorta, or aortic dissection. Herein are described the diagnostic and therapeutic characteristics for a series of patients with aortic saddle embolism. A retrospective review of medical records was performed for patients receiving treatment for aortic saddle embolism at a university hospital in China between January 2001 and September 2017. Demographic, clinical, ancillary testing, treatment, and outcome data were collected and analyzed. Eighteen patients (10 women and 8 men) with a mean age of 53.8years were included. The most commonly associated cardiac diseases were atrial fibrillation or atrial flutter (89%); rheumatic heart disease, valvular heart disease, or both (72%); and congestive heart failure (56%). Rest pain was present in all patients, and sensory or motor deficits were present in 12 patients (67%). Computed tomography (CT) angiography was performed for all patients. Seventeen patients (94%) presented with aortic embolism below the renal arteries. Fifteen patients (83%) underwent bilateral transfemoral embolectomy, and 3 patients (17%) received no intervention. Fasciotomy was performed for 9 patients in 14 limbs. The overall mortality rate was 33%, with a postprocedure mortality rate of 20%. Major morbidity occurred in 60% of patients. Six lower extremities were amputated in 4 patients, and acute renal failure developed in 4 patients. The incidence of postembolectomy internal iliac artery embolism was 58% (11 of 19 iliac arteries), and pelvic ischemia developed in 1 young patient. Aortic saddle embolism is uncommon but associated with high morbidity and mortality. CT angiography is recommended for diagnosis, and bilateral transfemoral embolectomy is the preferred treatment. Postembolectomy internal iliac artery embolism was common, and prevention of pelvic ischemia should be considered for young patients.
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