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  • Title: Urgent carotid endarterectomy is safe in patients with few comorbid medical conditions.
    Author: Bazan HA, Pradhan S, Westvik TS, Sumpio BE, Gusberg RJ, Dardik A.
    Journal: Ann Vasc Surg; 2008; 22(4):505-12. PubMed ID: 18462920.
    Abstract:
    Recent reports from single institutions have confirmed the efficacy of carotid endarterectomy (CEA) performed in the urgent or emergent setting, although with higher perioperative mortality and morbidity. We determined the results of urgently performed CEA in academic and community hospitals and whether patient or hospital factors affected outcome. The records of patients undergoing CEA in all nonfederal hospitals in the state of Connecticut between 1992 and 2002 were reviewed, and symptomatic patients who presented in an urgent or emergent fashion were compared to patients treated electively. Multivariable logistic regression was used to determine the effect of patient risk factors on perioperative mortality, stroke, and cardiac complications. Patients undergoing urgent CEA (n = 764, 6.3%) had higher perioperative mortality (2.0% vs. 0.3%, p < 0.0001) and stroke (2.9% vs. 1.1%, p < 0.0001) but not cardiac complications (3.0% vs. 2.2%, p = 0.14) compared to patients undergoing elective CEA (n = 11,312). Patients undergoing urgent CEA and with high rates of associated comorbidity had a higher risk of perioperative mortality (7.8% vs. 0.4, p = 0.001), stroke (10.9% vs. 0.8%, p = 0.0002), and cardiac complications (14.1% vs. 0.8%, p < 0.0001) compared to patients presenting urgently but with little comorbidity. Perioperative mortality was associated with performance of the procedure in hospitals with low bed capacity (odds ratio [OR] = 4.6, p = 0.01). Perioperative stroke was associated with renal insufficiency (OR = 5.3, p = 0.04). Perioperative cardiac complications were associated with diabetes (OR = 2.6, p = 0.03) and performance in hospitals with low bed capacity (OR = 5.0, p < 0.01). Urgent admission was associated with age >/=80 (OR = 1.2, p = 0.04), renal disease (OR = 1.8, p = 0.05), and cardiac disease (OR = 1.3, p < 0.01). Urgently performed CEA has higher perioperative mortality and stroke compared with electively performed cases. However, the subset of patients with low rates of associated comorbid medical conditions but urgently needing CEA is associated with low rates of perioperative complications. Patients with severe associated comorbid medical conditions who present urgently for CEA may form a high-risk group of patients to be considered for referral to large treatment centers or possibly alternative therapy.
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