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Hakeem A.,University of Cincinnati | Bhatti S.,University of Cincinnati | Karmali K.N.,University of Wisconsin - Madison | Dillie K.S.,Medical College of Wisconsin | And 4 more authors.
JACC: Cardiovascular Imaging | Year: 2010

Objectives: The aim of this study was to evaluate the impact of renal function by estimated glomerular filtration rate (eGFR) on risk stratification of diabetic and nondiabetic patients undergoing myocardial perfusion imaging (MPI) by single-photon emission computed tomography for suspected ischemia. Background: Coronary artery disease is the leading cause of death among diabetic persons; however, diabetic persons are a very heterogeneous group in terms of cardiovascular risk, necessitating further risk stratification. Methods: Patients (n = 1,747, age 65 ± 10 years, 37% diabetic) undergoing MPI were followed for cardiac death (CD) for a mean of 2.15 ± 0.8 years. Chronic kidney disease (CKD) was defined by an eGFR <60 ml/min. Results: In the presence of a normal scan, annual CD rate was 0.9% for those with no diabetes mellitus (DM) and no CKD, 0.5% in the DM alone group, 2.35% in CKD alone, and 2.9% in those with both DM and CKD (p < 0.001). Patients with DM+CKD had a 2.7-fold risk of CD compared with no DM no CKD (p = 0.001) after controlling for age, ejection fraction, history of coronary artery disease, and other risk factors. The risk of CD increased as a function of the presence and severity of perfusion defects, regardless of CKD or DM status. Presence of CKD conferred a several-fold higher risk of CD for the various strata of perfusion defects. Log-rank test for difference in probability of CD was nonsignificant for comparison between patients with no DM no CKD and those with DM alone (p = 0.73) but was significant for comparison between patients with no DM no CKD and patients with CKD alone (p < 0.001) or DM+CKD (p < 0.001). Conclusions: MPI and eGFR provide valuable risk stratification for diabetic and nondiabetic patients. Diabetic patients without CKD seem to have similar short-term cardiac outcomes compared with nondiabetic patients. Underlying CKD seems to identify a high-risk subgroup of diabetic patients. © 2010 American College of Cardiology Foundation. Source


Tarnoki A.D.,Semmelweis University | Tarnoki D.L.,Semmelweis University | Bata P.,Semmelweis University | Littvay L.,Central European University | And 13 more authors.
Liver International | Year: 2012

Background: Non-alcoholic fatty liver disease (NAFLD) has been linked to increased cardiovascular morbidity. However, genetic factors have an unclear role in this condition. Aims: To analyse heritability of NAFLD and its association with abnormal vascular parameters in a large twin cohort. Methods: Anthropometric and lipid metabolic parameters were obtained from 208 adult Hungarian twins (63 monozygotic and 41 dizygotic pairs; 58 men and 150 women; age 43.7 ± 16.7 years). B-mode ultrasonography was performed to detect steatosis and categorize severity. Brachial and aortic augmentation indices and aortic pulse wave velocity were assessed using oscillometry (TensioMed Arteriograph). Carotid intima media thickness (IMT) was measured using ultrasonography on the proximal common, distal common and internal carotid arteries. Results: NAFLD was identified in 47 subjects (22.6%), of which 44 (93.6%) had mild and 3 (6.4%) had moderate steatosis. These subjects were older (age: 50.9 ± 14.3 vs. 41.5 ± 16.7 years, P < 0.001) and had a higher body mass index (BMI; 30.1 ± 5.2 vs. 24.6 ± 4.1 km/m2, P < 0.001) than non-NAFLD twins. Based on 91 same-sex twin pairs, heritability analysis indicated no discernible role for genetic components in the presence of NAFLD (95% confidence interval, 0.0-36.0%), while shared and unshared environmental effects accounted for 74.2% and 25.8% of variations adjusted for age and BMI. Augmentation indices and carotid IMT in twins with NAFLD were increased at most examined locations (P < 0.05-P < 0.001). Conclusion: These findings do not support heritability of NAFLD, although it coexists with vascular parameters linked to increased cardiovascular risk, underscoring the importance and value of prevention in this very common disorder. © 2012 John Wiley & Sons A/S. Source


Hassoun H.T.,Johns Hopkins University | Hassoun H.T.,key Heart and Vascular Center | Malas M.B.,Johns Hopkins University | Freischlag J.A.,Johns Hopkins University
Archives of Surgery | Year: 2010

Stroke is a leading cause of morbidity and mortality worldwide. Traditional therapy for extracranial carotid artery occlusive disease, a significant risk factor for stroke, consists of optimal medical management and selective surgical treatment with carotid endarterectomy (CEA) for stroke risk reduction. Buoyed by the widespread application of percutaneous interventions for the treatment of coronary artery disease, carotid artery stenting (CAS) has steadily developed during the past decade as an alternative to CEA for patients who might benefit from surgical treatment. With greater operator experience have come advances in CAS techniques and patient selection criteria, and several single-center studies and industry-sponsored stent registries have demonstrated excellent results for CAS, especially compared with the landmark randomized CEA trials of the 1980s. Nevertheless, CAS has emerged as one of the most controversial procedures in the era of modern medicine, and recently published randomized trials from Europe have only stoked the fires of controversy. This study reviews the best available data for CAS as an alternative therapy to CEA for stroke risk reduction and gives an overview of eagerly anticipated large randomized trials. ©2010 American Medical Association. All rights reserved. Source


Kostick K.M.,Baylor College of Medicine | Minard C.G.,Baylor College of Medicine | Wilhelms L.A.,Baylor College of Medicine | Delgado E.,Baylor College of Medicine | And 6 more authors.
Journal of Heart and Lung Transplantation | Year: 2016

Background A central tenet of patient-centered health care advocated by the Institute of Medicine and the American Medical Association is to enhance informed decision-making in a way that incorporates patient values, knowledge and beliefs. Achievement of this goal is constrained by a lack of validated measures of patients' knowledge needs. Methods In this study we present a comprehensive and valid methodology for developing a clinically informed and patient-centered measure of knowledge about left ventricular assist device (LVAD) therapy to facilitate discussion and measure candidate understanding of treatment options. Using structured interviews with patients, caregivers, candidates for LVAD treatment (New York Heart Association Class III and IV) and expert clinicians (n = 71), we identified top patient decisional needs and perspectives on essential knowledge needs for informed decision-making. From this list, we generated 20 knowledge scale question items to refine in cognitive interviews (n = 5) with patients and patient consultants. Results Good internal consistency and reliability of the knowledge scale (Cronbach's α = 0.81) was seen in 30 LVAD patients and candidates. Knowledge was higher among patients currently with LVADs than candidates, regardless of receiving standard education (with education: 69.9 vs 50.1, adjusted p = 0.02; without education: 69.9 vs 37.6, adjusted p < 0.001). Conclusion The LVAD knowledge scale may be useful in clinical settings to identify gaps in knowledge among patient candidates considering LVAD treatment, and to better tailor education and discussion with patients and their caregivers, and to enhance informed decision-making before treatment decisions are made. © 2016 International Society for Heart and Lung Transplantation. All rights reserved. Source


Bavare C.,Methodist Hospital | Kim M.,Methodist Hospital | Blackmon S.,Methodist Hospital | Ellsworth W.,Baylor College of Medicine | And 2 more authors.
Annals of Thoracic Surgery | Year: 2011

Aortic injuries presenting in a delayed fashion after attempted repair of an acute injury are uncommon. We report a case of a patient presenting with an initial aortic injury associated with thoracic spinal hardware placement, which was repaired with an open and endovascular approach, and 5 months later presented with hemoptysis. The cause of hemoptysis was erosion of the descending thoracic aorta between the spinal hardware and the thoracic endograft. The patient underwent descending aorta replacement with a Dacron tube graft, removal of the hardware, and coverage with a pedicled omental flap. This is a unique presentation of erosion of the aorta between the spinal hardware and the earlier placed endovascular stent-graft. © 2011 The Society of Thoracic Surgeons. Source

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