4 results on '"Ewald, Gregory"'
Search Results
2. Clinical outcomes with use of erythropoiesis stimulating agents in patients with the HeartMate II left ventricular assist device.
- Author
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Nassif ME, Patel JS, Shuster JE, Raymer DS, Jackups R Jr, Novak E, Gage BF, Prasad S, Silvestry SC, Ewald GA, and LaRue SJ
- Subjects
- Darbepoetin alfa adverse effects, Epoetin Alfa adverse effects, Female, Follow-Up Studies, Hemoglobins analysis, Humans, L-Lactate Dehydrogenase blood, Male, Middle Aged, Missouri epidemiology, Retrospective Studies, Thrombosis drug therapy, Thrombosis epidemiology, Heart Failure mortality, Heart Failure therapy, Heart-Assist Devices, Hematinics adverse effects, Ventricular Dysfunction, Left mortality, Ventricular Dysfunction, Left therapy
- Abstract
Objectives: This study evaluated clinical outcomes associated with erythropoiesis stimulating agent (ESA) use in left ventricular assist devices (LVAD)-supported patients., Background: Use of ESAs in patients with LVADs may minimize blood transfusions and decrease allosensitization. ESAs increase thrombotic events, which is concerning because LVADs are sensitive to pump thrombosis (PT)., Methods: We retrospectively reviewed 221 patients at our center who received a HeartMate II (Thoratec Corp., Pleasanton, California) LVAD between January 1, 2009 and June 6, 2013. Patients were divided into those who received ESAs during index admission (n = 121) and those who did not (n = 100). Suspected PT was defined as evidence of thrombus in the LVAD or severe hemolysis (lactate dehydrogenase >1,000 mg/dl or plasma-free hemoglobin >40 mg/dl). Outcomes were compared between cohorts using inverse probability-weighted analyses., Results: During a mean follow-up of 14.2 ± 11.9 months, suspected PT occurred in 37 patients (ESA 23%, no ESA 12%; p =0.03). The ESA cohort received ESAs 13.9 ± 60.9 days after LVAD implantation. At 180 days, event-free rates for suspected PT were ESA 78.6% versus no ESA 94.5% (p < 0.001). ESA use had higher rates of suspected PT (hazard ratio [HR]: 2.35; 95% confidence interval [CI]: 1.38 to 4.00; p = 0.002). For every 100-unit increase in cumulative ESA dosage, the hazard of suspected PT increased by 10% (HR: 1.10; 95% CI: 1.04 to 1.16; p < 0.001). After inverse probability weighting, ESA use was associated with a significantly higher rate of all-cause mortality (HR: 1.62; 95% CI: 1.12 to 2.33; p = 0.01)., Conclusions: ESA use in LVAD patients is associated with higher rates of suspected PT., (Copyright © 2015 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
3. Executive dysfunction and depressive symptoms associated with reduced participation of people with severe congestive heart failure.
- Author
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Foster ER, Cunnane KB, Edwards DF, Morrison MT, Ewald GA, Geltman EM, and Zazulia AR
- Subjects
- Adult, Cognition Disorders complications, Cognition Disorders epidemiology, Cognition Disorders psychology, Cross-Sectional Studies, Depression complications, Female, Heart Failure complications, Humans, Male, Medical Records, Middle Aged, Missouri epidemiology, Psychiatric Status Rating Scales, Young Adult, Depression epidemiology, Depression psychology, Executive Function, Heart Failure psychology, Social Participation
- Abstract
Objective: We investigated participation levels and relationships among cognition, depression, and participation for people with severe congestive heart failure (CHF)., Method: People with severe CHF (New York Heart Association Class III or IV) awaiting heart transplantation (N = 27) completed standardized tests of cognition and self-report measures of executive dysfunction, depressive symptoms, and participation., Results: Possible depression (64%) and cognitive impairment (15%-59%) were prevalent. Participants reported significant reductions in participation across all activity domains since CHF diagnosis (ps < .001). Worse executive dysfunction and depressive symptoms were associated with reduced participation and together accounted for 35%-46% of the variance in participation (ps < .01)., Conclusion: Participation restrictions associated with CHF are not limited to physically demanding activities and are significantly associated with executive dysfunction and depression. Cardiac rehabilitation should address cognitive and psychological functioning in the context of all life situations instead of focusing solely on physical function and disability.
- Published
- 2011
- Full Text
- View/download PDF
4. Should UNOS Status 2 patients undergo transplantation?
- Author
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Moazami N, Shah NR, Ewald GA, Geltman EM, Moorhead SL, and Pasque MK
- Subjects
- Cohort Studies, Female, Humans, Incidence, Male, Middle Aged, Missouri epidemiology, Retrospective Studies, Risk Factors, Severity of Illness Index, Survival Analysis, Survival Rate, Treatment Outcome, Heart Failure mortality, Heart Failure surgery, Heart Transplantation mortality, Patient Selection, Risk Assessment methods
- Abstract
Background: With recent improvements in medical and device therapy, the benefit of cardiac transplantation for UNOS Status 2 patients has been questioned. No randomized trial has been performed to compare transplantation versus contemporary medical therapy., Methods: Between January 1996 and December 2003, 203 patients were listed at our institution for heart transplantation as UNOS Status 2. We performed a retrospective review to determine outcomes in these patients., Results: Demographics of this cohort revealed a mean age of 52 years, female sex in 28%, and ischemic etiology in 47%. Eighty-one patients (40%) had an implantable cardiac defibrillator. A total of 64 patients (32%) had to be upgraded in their UNOS status, with 9 requiring a left ventricular assist device. Of the entire group, 95 (47%) underwent transplantation at a mean time of 303 days, 45 (22%) died while waiting at a mean time of 397 days, and 24 (12%) were removed from the waiting list due to deterioration in medical condition such that transplantation was no longer an option. The remaining patients continue to wait or have been removed from consideration due to improved condition. Survival at 1- and 3-years postlisting was 94% and 87% for patients who received transplants compared to 81% and 57% for patients who did not receive transplants (P < .01)., Conclusion: A significant number of patients listed as Status 2 are upgraded in UNOS status or die while on the waiting list. Early and midterm survival is significantly better with transplantation. Identification of variables associated with deterioration may allow for better risk stratification in the future. At this point, transplantation offers the best outcome.
- Published
- 2006
- Full Text
- View/download PDF
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