10 results on '"Hovnanians, Ninel"'
Search Results
2. Reproducibility of automated measurement of left ventricular volumes and ejection fraction using the Philips EPIQ system.
- Author
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Hovnanians N, Win T, Makkiya M, Zheng Q, and Taub C
- Subjects
- Echocardiography, Humans, Reproducibility of Results, Ventricular Function, Left, Heart Ventricles, Stroke Volume
- Published
- 2018
- Full Text
- View/download PDF
3. Validity of automated measurement of left ventricular ejection fraction and volume using the Philips EPIQ system.
- Author
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Hovnanians N, Win T, Makkiya M, Zheng Q, and Taub C
- Subjects
- Aged, Female, Humans, Male, Prospective Studies, Reproducibility of Results, Echocardiography methods, Heart Ventricles diagnostic imaging, Image Processing, Computer-Assisted methods, Stroke Volume physiology, Ventricular Function, Left physiology
- Abstract
Purpose: To assess the efficiency and reproducibility of automated measurements of left ventricular (LV) volumes and LV ejection fraction (LVEF) in comparison to manually traced biplane Simpson's method., Method: This is a single-center prospective study. Apical four- and two-chamber views were acquired in patients in sinus rhythm. Two operators independently measured LV volumes and LVEF using biplane Simpson's method. In addition, the image analysis software a2DQ on the Philips EPIQ system was applied to automatically assess the LV volumes and LVEF. Time spent on each analysis, using both methods, was documented. Concordance of echocardiographic measures was evaluated using intraclass correlation (ICC) and Bland-Altman analysis., Results: Manual tracing and automated measurement of LV volumes and LVEF were performed in 184 patients with a mean age of 67.3 ± 17.3 years and BMI 28.0 ± 6.8 kg/m
2 . ICC and Bland-Altman analysis showed good agreements between manual and automated methods measuring LVEF, end-systolic, and end-diastolic volumes. The average analysis time was significantly less using the automated method than manual tracing (116 vs 217 seconds/patient, P < .0001)., Conclusion: Automated measurement using the novel image analysis software a2DQ on the Philips EPIQ system produced accurate, efficient, and reproducible assessment of LV volumes and LVEF compared with manual measurement., (© 2017, Wiley Periodicals, Inc.)- Published
- 2017
- Full Text
- View/download PDF
4. Statin therapy improves survival in patients with severe pulmonary hypertension: a propensity score matching study.
- Author
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Holzhauser L, Hovnanians N, Eshtehardi P, Mojadidi MK, Deng Y, Goodman-Meza D, Msaouel P, Ko YA, and Zolty R
- Subjects
- Aged, Cause of Death trends, Echocardiography, Doppler, Female, Heart Ventricles diagnostic imaging, Heart Ventricles drug effects, Hospitalization trends, Humans, Hypertension, Pulmonary mortality, Hypertension, Pulmonary physiopathology, Male, New York City epidemiology, Retrospective Studies, Severity of Illness Index, Survival Rate trends, Ventricular Function, Left drug effects, Heart Ventricles physiopathology, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Hypertension, Pulmonary drug therapy, Propensity Score, Pulmonary Wedge Pressure physiology, Ventricular Function, Left physiology
- Abstract
Inflammation is an increasingly recognized hallmark of pulmonary hypertension (PH). Statins have been shown to attenuate key pathologic mechanisms via pleiotropic effects in animal models. However, clinical benefit of statins in patients with PH is unknown and their effect on mortality has not been studied. We performed a retrospective analysis of patients between January 2002 to January 2012, with severe PH (pulmonary artery systolic pressure ≥60 mmHg) and preserved left ventricular function (ejection fraction ≥50%), defined by transthoracic echocardiograms. Patients were divided into two groups based on statin therapy for 12 consecutive months after diagnosis of PH. Propensity score matching was performed. Subgroup analysis was done based on COPD status. Study endpoint was 1-year all-cause mortality and hospitalization. 2363 patients (age 71 ± 16; 31% male) were included; 140 (6%) were on statin therapy. Overall 1-year mortality was 34%. Following propensity score matching, 138 patients were included in the statin group and 624 patients in the no-statin group; all-cause mortality was significantly lower in the statin group compared with the no-statin group [15.2 vs. 33.8%, HR 0.42 (95% CI 0.27, 0.66), p < 0.001], but hospitalization was comparable between two groups. After stratifying patients based on COPD status, patients with COPD showed a marginally significant survival benefit from statins [HR 0.53 (95% CI 0.26, 1.10), p = 0.09]; and statins significantly reduced 1-year all-cause mortality in patients without COPD [HR 0.36 (95% CI 0.19, 0.67), p = 0.001]. We found no significant difference in the effect of statins on patients with COPD compared to those without (p = 0.16). Statin therapy is associated with reduced mortality risk in patients with severe PH and preserved left ventricular function. This beneficial effect was not found to be dependent on COPD status. These novel findings should be confirmed in large randomized trials.
- Published
- 2017
- Full Text
- View/download PDF
5. Cardiac Pneumonia: Acute Mitral Regurgitation Causing Lobar Infiltrate.
- Author
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Hovnanians N, Alsara O, Mahmoud AN, Agarwal N, Mojaddedi S, Anderson RD, and Mojadidi MK
- Subjects
- Acute Disease, Diagnostic Errors, Dyspnea etiology, Echocardiography, Electrocardiography, Humans, Male, Middle Aged, Mitral Valve Insufficiency diagnosis, Mitral Valve Insufficiency diagnostic imaging, Pneumonia diagnostic imaging, Pulmonary Edema etiology, Tomography, X-Ray Computed, Mitral Valve Insufficiency complications, Pneumonia diagnosis, Pulmonary Edema diagnosis
- Published
- 2017
- Full Text
- View/download PDF
6. Parity, coronary heart disease and mortality in the old order Amish.
- Author
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Elajami TK, Giuseffi J, Avila MD, Hovnanians N, Mukamal KJ, Parikh N, and Welty FK
- Subjects
- Aged, Amish, Body Mass Index, Cohort Studies, Educational Status, Female, Follow-Up Studies, Humans, Life Style, Middle Aged, Ohio, Pregnancy, Proportional Hazards Models, Risk Factors, Social Class, Coronary Artery Disease diagnosis, Coronary Artery Disease ethnology, Parity
- Abstract
Background and Aims: Prior data on the association between parity and mortality are limited by the presence of sociodemographic confounders including cultural norms of parity. Our objective was to determine the association between parity and mortality in the Amish, a socioeconomically homogenous group with large numbers of children per family., Methods: We conducted a population-based cohort study among 518 Old Order Amish women enrolled in a cardiovascular awareness program. The mean length of follow-up for mortality was 13.52 years. We determined the adjusted associations between parity and obesity, prevalent coronary heart disease and mortality., Results: The mean number of total births per woman was 6.7 ± 3.6 with a mode of 8. No significant association was observed between parity and all-cause mortality when adjusted for age (HR 1.00 per additional birth; 95% CI 0.96-1.05; p = 0.85) or in multivariate analysis (HR 1.00, 95% CI 0.95-1.05; p = 0.95). There was also no association of parity in age- or multivariable adjusted models with prevalent diabetes, hypertension or coronary heart disease. Despite the lack of effect of parity on mortality, a significant association of ten or more births was observed with higher body mass index (BMI) compared to the referent group of 8-9 total births., Conclusions: In a highly homogeneous population with high rates of parity, no association between overall mortality and parity was observed. Ten or more births were significantly associated with a higher BMI but not with overall mortality., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2016
- Full Text
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7. An Unusual Presentation of QT Prolongation.
- Author
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Mojadidi MK, Hovnanians N, Kaufmann MR, and Hill JA
- Subjects
- Arrhythmias, Cardiac diagnosis, Arrhythmias, Cardiac physiopathology, Arrhythmias, Cardiac therapy, Electrocardiography, Female, Humans, Hypokalemia complications, Middle Aged, Pantoprazole, Predictive Value of Tests, Risk Factors, Time Factors, Ventricular Dysfunction, Left complications, 2-Pyridinylmethylsulfinylbenzimidazoles adverse effects, Action Potentials, Anti-Infective Agents adverse effects, Arrhythmias, Cardiac etiology, Metronidazole adverse effects, Proton Pump Inhibitors adverse effects
- Published
- 2016
- Full Text
- View/download PDF
8. Transcranial Doppler: Does Addition of Blood to Agitated Saline Affect Sensitivity for Detecting Cardiac Right-to-Left Shunt?
- Author
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Mojadidi MK, Zhang L, Chugh Y, Eshtehardi P, Hovnanians N, Gevorgyan R, Mojaddedi S, Nezami N, Zaman MO, Rafique A, Villablanca PA, and Tobis JM
- Subjects
- Adult, Aged, Aged, 80 and over, Contrast Media administration & dosage, Contrast Media chemistry, Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Sodium Chloride administration & dosage, Ultrasonography, Doppler, Transcranial drug effects, Young Adult, Blood Chemical Analysis, Foramen Ovale, Patent diagnostic imaging, Image Enhancement methods, Image Interpretation, Computer-Assisted methods, Sodium Chloride chemistry, Ultrasonography, Doppler, Transcranial methods
- Abstract
Background: Transcranial Doppler (TCD) with agitated saline has been shown to be an alternative for the detection of right-to-left shunts (RLS) with similar diagnostic accuracies as transesophageal echocardiography (TEE). It is hypothesized that the addition of blood to agitated saline increases the sensitivity of TCD for the detection of RLS. The aim of this meta-analysis was to determine whether agitated saline with blood increases the sensitivity of TCD for the detection of RLS compared to agitated saline alone and other contrast agents., Method: A systematic review of Medline, Cochrane, and Embase was performed to look for all prospective studies assessing intracardiac RLS using TCD compared with TEE as the reference; both tests were performed with a contrast agent and a maneuver to provoke RLS in all studies., Results: A total of 27 studies (29 comparisons) with 1,968 patients met the inclusion criteria. Of 29 comparisons, 10 (35%) used echovist contrast during TCD, 4 (14%) used a gelatin-based solution, 12 (41%) used agitated saline, and 3 (10%) utilized 2 different contrast agents. The addition of blood to agitated saline improved the sensitivity of TCD to 100% compared to agitated saline alone (96% sensitivity, P = 0.161), echovist (94% sensitivity, P = 0.044), and gelatin-based solutions (93% sensitivity, P = 0.041)., Conclusion: The addition of blood to agitated saline improves the sensitivity of TCD for the detection of RLS to 100% when compared to other conventional contrast agents; these findings support the addition of blood to agitated saline during TCD bubble studies., (© 2016, Wiley Periodicals, Inc.)
- Published
- 2016
- Full Text
- View/download PDF
9. Platypnea-Orthodeoxia Syndrome: From Gastroesophageal Reflux to Hypoxemia.
- Author
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Hovnanians N, Mojadidi MK, Brandt JC, Eshtehardi P, and Tobis JM
- Subjects
- Female, Humans, Middle Aged, Dyspnea etiology, Foramen Ovale, Patent complications, Fundoplication adverse effects, Hypoxia etiology, Postoperative Complications etiology
- Published
- 2016
- Full Text
- View/download PDF
10. Addition of angiotensin-converting enzyme inhibitors to beta-blockers has a distinct effect on hispanics compared with african americans and whites with heart failure and reduced ejection fraction: a propensity score-matching study.
- Author
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Eshtehardi P, Pamerla M, Mojadidi MK, Goodman-Meza D, Hovnanians N, Gupta A, Lupercio F, Mazurek JA, and Zolty R
- Subjects
- Black or African American, Aged, Angiotensin-Converting Enzyme Inhibitors administration & dosage, Drug Monitoring methods, Drug Synergism, Echocardiography methods, Female, Hispanic or Latino, Hospitalization statistics & numerical data, Humans, Male, Middle Aged, Propensity Score, Retrospective Studies, Severity of Illness Index, Survival Analysis, United States epidemiology, White People, Adrenergic beta-Antagonists pharmacology, Angiotensin-Converting Enzyme Inhibitors pharmacology, Heart Failure diagnosis, Heart Failure drug therapy, Heart Failure ethnology, Heart Failure mortality, Heart Failure physiopathology, Ventricular Function, Left drug effects
- Abstract
Background: There are currently no data on the efficacy of angiotensin-converting enzyme inhibitors (ACEis) in Hispanic patients with heart failure (HF) and reduced ejection fraction (HFrEF). We aimed to investigate the effect of adding ACEis to beta-blockers on mortality and hospitalization for HF exacerbation in patients with HFrEF stratified by race/ethnicity., Methods and Results: From Montefiore Medical Center's 3 large hospitals, 618 consecutive patients with HFrEF (left ventricular ejection fraction [LVEF] <35%) who were on a beta-blocker were retrospectively identified. Patients were divided into 2 groups based on whether or not they were on an ACEi for 24 consecutive months. Propensity score matching including all baseline characteristics was performed and patients were then categorized into 3 groups: African Americans, Hispanics, and Whites/Caucasians. We evaluated 2-year all-cause mortality and 2-year hospitalization for HF exacerbation. Of 618 patients, 66% were categorized as ACEi and 34% as no-ACEi. Four hundred twenty-seven patients were matched 2:1 between the ACEi and no-ACEi groups. After matching, overall 2-year mortality and hospitalization rates were similar between ACEi and no-ACEi (12.4% vs 17.8%, hazard ratio [HR] 0.66, 95% confidence interval [CI] 0.38-1.16; P = .14; and 8.1% vs 9.5%, HR 0.84, 95% CI 0.44-1.60; P = .6; respectively). After stratifying patients based on race/ethnicity, ACEi demonstrated a lower 2-year mortality compared with no-ACEi in Hispanics (9.8% vs 28.4%, HR 0.33, 95% CI 0.13-0.87; P = .018) but not in African Americans (17.0% vs 11.8%, HR 0.94, 95% CI 0.34-2.65; P = .91) or Whites (9.2% vs 10.3%, HR 0.89, 95% CI 0.29-2.74; P = .83). Two-year hospitalization was not different between ACEi and no-ACEi in Hispanics, African Americans, or Whites (all P = NS). In multivariate analysis, ACEi therapy was an independent predictor of lower 2-year mortality (HR 0.33, 95% CI 0.12-0.89; P = .028) in Hispanics only., Conclusions: In this retrospective propensity-matched study of patients with HFrEF who were on a beta-blocker, ACEi therapy was associated with greater mortality reduction in Hispanic patients compared with African Americans and Whites. These findings need to be confirmed in large national studies that include a significant fraction of Hispanic patients., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
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