Publications by authors named "Ezinne Ihenachor"

Background: Current guidelines recommend vascular mapping ultrasound (US) prior to arteriovenous fistula creation. Blunted venous waveforms (BVWs) suggest central venous stenosis; however, this relationship and one between BVWs and the presence of a central venous catheter (CVC) remain unclear.

Methods: All patients who received upper extremity vascular mapping US between January 2013 and October 2014 at a single institution were retrospectively reviewed.

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Objective: The autogenous arteriovenous fistula (AVF) has been shown to be superior to the arteriovenous graft (AVG) with respect to cost, complications, and primary patency. Therefore, the National Kidney Foundation Disease Outcomes Quality Initiative guidelines recommend reserving AVGs for patients who do not have adequate superficial venous anatomy to support AVF placement. The brachial artery-brachial vein arteriovenous fistula (BVAVF) has emerged as an autologous last-effort alternative.

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Prior studies have shown racial and gender differences with respect to maturation of arteriovenous fistulas. Women and minorities have lower maturation rates for unclear reasons. Small arterial diameter and high brachial artery bifurcation (HBB) are also implicated in reduced maturation rates.

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An 82-year-old supplemental oxygen dependent woman with severe COPD presented with an eight month history of worsening hoarseness and stridor. Office laryngoscopy revealed laryngeal edema and ulcerative masses throughout the larynx. In-office biopsies were positive for Cryptococcus neoformans.

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Background: Routine upper extremity vein mapping by ultrasound (Ven-US) is recommended by current National Kidney Foundation/Kidney Disease Outcomes Quality Initiative guidelines before arteriovenous fistula (AVF) creation. However, the impact of concomitant arterial US (Art-US) examination is not clear.

Methods: The Ven-US protocol at our institution was modified to include Art-US starting January 2013.

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Background: HIV-infected patients have a high risk of myocardial infarction. We aimed to assess the ability of statin treatment to reduce arterial inflammation and achieve regression of coronary atherosclerosis in this population.

Methods: In a randomised, double-blind, placebo-controlled trial, 40 HIV-infected participants with subclinical coronary atherosclerosis, evidence of arterial inflammation in the aorta by fluorodeoxyglucose (FDG)-PET, and LDL-cholesterol concentration of less than 3.

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Background: Individuals infected with human immunodeficiency virus (HIV) have decreased high-density lipoprotein (HDL)-cholesterol and increased cardiovascular disease (CVD). Reverse cholesterol transport from macrophages may be inhibited by HIV and contribute to increased CVD. Human studies have not investigated longitudinal effects of HIV and antiretroviral therapy (ART) on cholesterol efflux.

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Background: Mechanisms predisposing HIV-infected patients to increased cardiovascular disease (CVD) risk remain unclear.

Objective: To determine the interrelationship between arterial inflammation and high-risk coronary plaque morphology in HIV-infected patients with subclinical coronary atherosclerosis.

Methods: Forty-one HIV-infected patients on stable antiretroviral therapy without known CVD but with atherosclerotic plaque on coronary CT angiography were evaluated with F-FDG-PET.

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