23 results on '"Friedman SE"'
Search Results
2. End-organ ischemia as an unforeseen complication of endoscopic-ultrasound-guided celiac plexus neurolysis.
- Author
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Ahmed HM, Friedman SE, Henriques HF, and Berk BS
- Published
- 2009
- Full Text
- View/download PDF
3. National Rapid Genome Sequencing in Neonatal Intensive Care.
- Author
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Marom D, Mory A, Reytan-Miron S, Amir Y, Kurolap A, Cohen JG, Morhi Y, Smolkin T, Cohen L, Zangen S, Shalata A, Riskin A, Peleg A, Lavie-Nevo K, Mandel D, Chervinsky E, Fisch CF, Fleisher Sheffer V, Falik-Zaccai TC, Rips J, Shlomai NO, Friedman SE, Shporen CH, Ben-Yehoshua SJ, Simmonds A, Yaacobi RG, Bauer-Rusek S, Omari H, Weiss K, Hochwald O, Koifman A, Globus O, Batzir NA, Yaron N, Segel R, Morag I, Reish O, Eliyahu A, Leibovitch L, Schwartz ME, Abramsky R, Hochberg A, Oron A, Banne E, Portnov I, Samra NN, Singer A, and Baris Feldman H
- Subjects
- Infant, Infant, Newborn, Female, Male, Humans, Cohort Studies, Prospective Studies, Intensive Care Units, Neonatal, Intensive Care, Neonatal, Critical Illness
- Abstract
Importance: National implementation of rapid trio genome sequencing (rtGS) in a clinical acute setting is essential to ensure advanced and equitable care for ill neonates., Objective: To evaluate the feasibility, diagnostic efficacy, and clinical utility of rtGS in neonatal intensive care units (NICUs) throughout Israel., Design, Setting, and Participants: This prospective, public health care-based, multicenter cohort study was conducted from October 2021 to December 2022 with the Community Genetics Department of the Israeli Ministry of Health and all Israeli medical genetics institutes (n = 18) and NICUs (n = 25). Critically ill neonates suspected of having a genetic etiology were offered rtGS. All sequencing, analysis, and interpretation of data were performed in a central genomics center at Tel-Aviv Sourasky Medical Center. Rapid results were expected within 10 days. A secondary analysis report, issued within 60 days, focused mainly on cases with negative rapid results and actionable secondary findings. Pathogenic, likely pathogenic, and highly suspected variants of unknown significance (VUS) were reported., Main Outcomes and Measures: Diagnostic rate, including highly suspected disease-causing VUS, and turnaround time for rapid results. Clinical utility was assessed via questionnaires circulated to treating neonatologists., Results: A total of 130 neonates across Israel (70 [54%] male; 60 [46%] female) met inclusion criteria and were recruited. Mean (SD) age at enrollment was 12 (13) days. Mean (SD) turnaround time for rapid report was 7 (3) days. Diagnostic efficacy was 50% (65 of 130) for disease-causing variants, 11% (14 of 130) for VUS suspected to be causative, and 1 novel gene candidate (1%). Disease-causing variants included 12 chromosomal and 52 monogenic disorders as well as 1 neonate with uniparental disomy. Overall, the response rate for clinical utility questionnaires was 82% (107 of 130). Among respondents, genomic testing led to a change in medical management for 24 neonates (22%). Results led to immediate precision medicine for 6 of 65 diagnosed infants (9%), an additional 2 (3%) received palliative care, and 2 (3%) were transferred to nursing homes., Conclusions and Relevance: In this national cohort study, rtGS in critically ill neonates was feasible and diagnostically beneficial in a public health care setting. This study is a prerequisite for implementation of rtGS for ill neonates into routine care and may aid in design of similar studies in other public health care systems.
- Published
- 2024
- Full Text
- View/download PDF
4. Associations of religious and existential variables with psychosocial factors and biomarkers of cardiovascular risk in bereavement.
- Author
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Palitsky R, Chen ZJ, Rentscher KE, Friedman SE, Wilson DMT, Ruiz JM, Sullivan D, Grant GH, and O'Connor MF
- Subjects
- Adult, Humans, Middle Aged, Spirituality, Adaptation, Psychological, Risk Factors, Grief, Heart Disease Risk Factors, Cardiovascular Diseases, Bereavement
- Abstract
Bereavement increases in prevalence as people age and is associated with multiple psychological and health risks, including cardiovascular risk. Religious and existential variables may play an important role in the health impacts of bereavement. Theorized pathways linking religious and existential variables with health have suggested these associations are due to intermediary psychosocial variables, but have not been tested in bereavement. This research empirically tested these pathways in a bereaved population. In N = 73 adults within 1 year of bereavement (mean age = 64.36), this study examined associations between (1) religious and existential characteristics (religious and spiritual struggles, intrinsic religiosity, and existential quest) and intermediary psychosocial variables (depression, loneliness, and difficulties in emotion regulation), and between (2) intermediary psychosocial variables and bereavement-relevant health outcomes (self-reported health, change in health since last year, grief severity, and cardiovascular biomarkers). Cardiovascular biomarkers (heart rate, heart rate variability, and blood pressure) were collected before, during, and after a laboratory grief recall emotion elicitation. Anticipated associations between self-reported religious and existential characteristics and intermediary variables, and between intermediary variables and self-reported bereavement-relevant outcomes, were consistently observed. However, associations between intermediary variables and cardiovascular biomarkers were largely unobserved. This study examined the role of religious and existential variables in whole-person health after bereavement and is among the first to include biomarkers of cardiovascular risk. Results suggest that although religious and existential variables are associated with important bereavement-related outcomes, these associations may be "skin-deep," and extensions to cardiovascular functioning should be re-examined., (© 2023 The Authors. Aging Cell published by Anatomical Society and John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
5. Implementing Psychological First Aid for Healthcare Workers During the COVID-19 Pandemic: A Feasibility Study of the ICARE Model.
- Author
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Chandler AB, Wank AA, Vanuk JR, O'Connor MF, Dreifuss BA, Dreifuss HM, Ellingson KD, Khan SM, Friedman SE, and Athey A
- Subjects
- Humans, Feasibility Studies, Psychological First Aid, Pandemics prevention & control, Health Personnel, COVID-19
- Abstract
Maintaining the resilience of healthcare workers (HCWs) during the protracted COVID-19 pandemic is critical as chronic stress is associated with burnout, inability to provide high-quality care, and decreased attentiveness to infection prevention protocols. Between May and July 2020, we implemented the ICARE model of psychological first aid (PFA) in a novel online (i.e., telehealth) format to address the psychological support needs of HCWs during the COVID-19 pandemic. We found that HCWs needed psychological support related to obtaining clear information about pandemic policies and guidelines, navigating new rules and responsibilities, and processing overwhelming and conflicting emotions. The HCWs in our program repeatedly expressed appreciation for the support we provided. Future directions include establishing online discussion forums, increasing opportunities for individual support, and training HCWs to provide peer support using PFA. This program has far-reaching potential benefit to HCWs and to society at large in the context of a pandemic., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2023
- Full Text
- View/download PDF
6. The Relationship of Prolonged Grief Disorder Symptoms With Hemodynamic Response to Grief Recall Among Bereaved Adults.
- Author
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Palitsky R, Wilson DT, Friedman SE, Ruiz JM, Sullivan D, and O'Connor MF
- Subjects
- Adult, Humans, Prolonged Grief Disorder, Grief, Blood Pressure physiology, Bereavement, Hypertension
- Abstract
Objective: Bereavement is among the most impactful psychosocial stressors for cardiovascular health, and hypertensive episodes accompanying bereavement-related distress are one putative mechanism for this effect. The present study examined hemodynamic responses to the Grief Recall (GR), a promising method for studying the effects of acute grief on cardiovascular function, and the relationship of grief severity to blood pressure (BP) response., Methods: N = 59 participants within 1 year of the loss of a close loved one completed the GR, a semistructured interview protocol for eliciting bereavement-related distress (a "grief pang") and cardiovascular response. Systolic (SBP) and diastolic BP (DBP) were measured at two time points: a) an attention-control baseline and (2) after a 10-minute GR interview. Baseline versus post-GR SBP and DBP differences (i.e., BP response) were measured. Grief severity was examined as a predictor of SBP and DBP response, as well as BP recovery., Results: SBP and DBP increased significantly after GR (SBP, +21.10 mm Hg; DBP, +8.10 mm Hg). Adjusting for variables relevant to cardiovascular function and bereavement (antihypertensive medication use, days since death, gender, age), grief severity predicted the magnitude of increase after GR in SBP but not DBP. No relationship of grief severity and recovery was observed., Conclusions: The observed association between hemodynamic response and grief severity suggests a mechanistic contribution from hemodynamic effects of acute grief episodes to the cardiovascular impact of grief. This is the first study to show that increased symptoms of prolonged grief disorder are associated with an elevated SBP response. The GR may have further utility for research examining physiological responses to bereavement-related emotions., (Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Psychosomatic Society.)
- Published
- 2023
- Full Text
- View/download PDF
7. Lateral annular systolic excursion ratio: A novel measurement of right ventricular systolic function by two-dimensional echocardiography.
- Author
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Stock JD, Rothstein ES, Friedman SE, Gemignani AS, Costa SP, Milbridge AJ, Zhang R, Taub CC, O'Rourke DJ, and Palac RT
- Abstract
Introduction: Accurate assessment of right ventricular (RV) systolic function has prognostic and therapeutic implications in many disease states. Echocardiography remains the most frequently deployed imaging modality for this purpose, but estimation of RV systolic function remains challenging. The purpose of this study was to evaluate the diagnostic performance of a novel measurement of RV systolic function called lateral annular systolic excursion ratio (LASER), which is the fractional shortening of the lateral tricuspid annulus to apex distance, compared to right ventricular ejection fraction (RVEF) derived by cardiac magnetic resonance imaging (CMR)., Methods: A retrospective cohort of 78 consecutive patients who underwent clinically indicated CMR and transthoracic echocardiography within 30 days were identified from a database. Parameters of RV function measured included: tricuspid annular plane systolic excursion (TAPSE) by M-mode, tissue Doppler S', fractional area change (FAC) and LASER. These measurements were compared to RVEF derived by CMR using Pearson's correlation coefficients and receiver operating characteristic curves., Results: LASER was measurable in 75 (96%) of patients within the cohort. Right ventricular systolic dysfunction, by CMR measurement, was present in 37% ( n = 29) of the population. LASER has moderate positive correlation with RVEF (r = 0.54) which was similar to FAC (r = 0.56), S' (r = 0.49) and TAPSE (r = 0.37). Receiver operating characteristic curves demonstrated that LASER (AUC = 0.865) outperformed fractional area change (AUC = 0.767), tissue Doppler S' (AUC = 0.744) and TAPSE (AUC = 0.645). A cohort derived dichotomous cutoff of 0.2 for LASER was shown to provide optimal diagnostic characteristics (sensitivity of 75%, specificity of 87% and accuracy of 83%) for identifying abnormal RV function. LASER had the highest sensitivity, accuracy, positive and negative predictive values among the parameters studied in the cohort., Conclusions: Within the study cohort, LASER was shown to have moderate positive correlation with RVEF derived by CMR and more favorable diagnostic performance for detecting RV systolic dysfunction compared to conventional echocardiographic parameters while being simple to obtain and less dependent on image quality than FAC and emerging techniques., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Stock, Rothstein, Friedman, Gemignani, Costa, Milbridge, Zhang, Taub, O'Rourke and Palac.)
- Published
- 2022
- Full Text
- View/download PDF
8. Evaluation of echocardiographic derived parameters for right ventricular size and function using cardiac magnetic resonance imaging.
- Author
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Rothstein ES, Palac RT, O'Rourke DJ, Venkataraman P, Gemignani AS, and Friedman SE
- Subjects
- Heart Ventricles diagnostic imaging, Humans, Magnetic Resonance Imaging, Stroke Volume, Ventricular Function, Right, Echocardiography, Ventricular Dysfunction, Right diagnostic imaging
- Abstract
Background: Cardiac Magnetic Resonance Imaging (cMRI) is the gold standard for right ventricular (RV) assessment due to its high spatial resolution. The American Society of Echocardiography (ASE) recommends eight structural and six functional quantitative parameters for evaluation of the RV. This study sought to simplify echocardiographic RV assessment by examining the relative diagnostic value of the echo recommended parameters by applying them to cMRI imaging of the RV., Methods: We applied ASE recommended measures of RV size and function to 56 cMRI's and compared them to RV volumetric analysis obtained from cMRI. Pearsons' correlation coefficient was used to compare ASE prescribed parameters to corresponding cMRI calculated RV end diastolic volume (RVEDV) and RV ejection fraction (RVEF). The diagnostic performance of each parameter in predicting abnormal RV size or function was analyzed using receiver operator characteristic curves. Youden-J index was used to determine optimal sensitivity/specificity cut-points. Stepwise regression modeling was performed to identify measurements independently associated with RV size or RVEF., Results: RV end diastolic area (RVEDA) correlated best with RVEDV (r = .76, p < 0.001) and RV fractional area change (RVFAC) correlated best with RVEF (r = .7, p < 0.001). The best ASE parameter for identifying RV dilatation was RVEDA (Youden-J index = .84), the optimal cutoff was 32.3 cm
2 which yielded sensitivity/specificity of 84% and 100%, respectively. The best parameter for diagnosing RV dysfunction was RVFAC (Youden-J index = .52), with an optimal cutoff of 42% leading to sensitivity/specificity of 64% and 88%, respectively., Conclusion: The area based echocardiographic parameters for RV size and function, RVEDA and RV fractional area change outperform linear measurements in predicting RV dilation and RV systolic dysfunction. These parameters should be examined in further echocardiographic based studies as the primary parameters to guide quantitative RV assessment., (© 2021 Wiley Periodicals LLC.)- Published
- 2021
- Full Text
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9. Relation of Venous Thromboembolism Risk to Ischemic Stroke Risk in Hospitalized Patients with Cancer.
- Author
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Corley AM, Sullivan MJ, Friedman SE, O'Rourke DJ, Palac RT, and Gemignani AS
- Subjects
- Aged, Databases, Factual, Female, Hospitalization statistics & numerical data, Humans, Male, Middle Aged, Neoplasms pathology, Retrospective Studies, Brain Ischemia epidemiology, Neoplasms complications, Pulmonary Embolism epidemiology, Stroke epidemiology, Venous Thromboembolism epidemiology, Venous Thrombosis epidemiology
- Abstract
Patients with cancer are at increased risk for venous thromboembolism (VTE). However, the relationship of cancer type to the risk of arterial thrombosis in patients with high VTE risk has not been described. The goal of this study is to determine the rate of arterial thrombosis in patients with different types of solid tumors stratified by VTE risk. Using the 2012 National Inpatient Sample, we identified 373,789 hospitalizations involving patients ≥18 years associated with solid tumors, stratified by type. Data were collected on clinical characteristics, VTE (deep vein thrombosis [DVT] and pulmonary embolism [PE]), and arterial thrombosis (primary diagnosis of myocardial infarction [MI] and ischemic stroke). Subjects with solid tumors (stages I to IV) were stratified by VTE risk - high versus low. Certain solid tumor types (esophageal, lung, melanoma, ovarian, pancreatic, stomach, and uterine) were found to be associated with a higher rate of VTE compared with other cancer types (6.8% vs 3.9%, p < 0.001). Multivariate analysis applied to the high VTE risk group showed no increased risk for MI (odds ratio [OR] 0.93, p = 0.74), however, the rate of ischemic stroke was increased (OR 1.22, p < 0.001). Those in the high VTE risk group who had metastatic disease were at higher risk for arterial thrombosis (MI OR 1.35, p < 0.001, ischemic stroke OR 2.43, p < 0.001). In conclusion, different cancer types are associated with increased risk of both venous and arterial thrombosis and the risk is further increased by the presence of metastatic disease., (Copyright © 2018. Published by Elsevier Inc.)
- Published
- 2019
- Full Text
- View/download PDF
10. Commentary: Flow State (Trading the Sweat Spot for the Sweet Spot): A Roadmap to Measure and Enhance Workplace Growth and Well-Being.
- Author
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Friedman SE, Levy EI, Owen M, Vossler AH, Friedman EP, and Shallwani H
- Published
- 2018
- Full Text
- View/download PDF
11. Torsades de Pointes in Severe Alcohol Withdrawal and Cirrhosis: Implications for Risk Stratification and Management.
- Author
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Yamamoto T and Friedman SE
- Abstract
Close monitoring of the QT interval, timely and aggressive management of withdrawal, repletion of electrolytes, and telemetry monitoring may prevent life-threatening arrhythmias for patients being treated for acute alcohol withdrawal., Competing Interests: Author disclosures The authors report no actual or potential conflicts of interest with regard to this article.
- Published
- 2017
12. The Role of Positive Psychology in the Modern Medical Practice.
- Author
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Friedman SE and Baum N
- Subjects
- Adaptation, Psychological, Humans, Interpersonal Relations, Patient Care Team, Personnel Management, Stress, Psychological physiopathology, United States, Health Personnel psychology, Optimism, Physician's Role psychology, Practice Management, Medical organization & administration, Stress, Psychological prevention & control
- Abstract
American healthcare has been shrouded in a cloak of negativity for too long. Many doctors are more pessimistic about the state of healthcare than they were even a few decades ago. In spite of extraordinary advances in the clinical aspects of healthcare, the business side of medicine has created a downward spiral in physician spirit, resulting in unnecessary stress, zapped energy, a rise in interpersonal conflict and, ultimately and as a byproduct of this negativity, reduced patient satisfaction. This downward spiral needs to be--and can be--stemmed. This article discuss how insights from the field of positive psychology and social neuroscience can help healthcare providers and their organizations flourish, in both their professional practices and personal lives.
- Published
- 2016
13. Antepartum Membrane Stripping in GBS Carriers, Is It Safe? (The STRIP-G Study).
- Author
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Kabiri D, Hants Y, Yarkoni TR, Shaulof E, Friedman SE, Paltiel O, Nir-Paz R, Aljamal WE, and Ezra Y
- Subjects
- Adult, Female, Humans, Odds Ratio, Pregnancy, Pregnancy Complications, Infectious diagnosis, Pregnancy Outcome, Prospective Studies, Risk Factors, Streptococcal Infections diagnosis, Streptococcus agalactiae, Carrier State microbiology, Extraembryonic Membranes microbiology, Pregnancy Complications, Infectious microbiology, Streptococcal Infections microbiology, Streptococcal Infections transmission
- Abstract
Objective: Stripping of the membranes is an established and widely utilized obstetric procedure associated with higher spontaneous vaginal delivery rates, reduced need for formal induction of labor and a lower likelihood of post-term pregnancy. Due to the theoretical concern of bacterial seeding during the procedure many practitioners choose not to sweep the membranes in Group B Streptococcus (GBS) colonized patients. We conducted 'the STRIP-G study' in order to determine whether maternal and neonatal outcomes are affected by GBS carrier status in women undergoing membrane stripping., Study Design: We conducted a prospective study in a tertiary referral center, comparing maternal and neonatal outcomes following membrane stripping among GBS-positive, GBS-negative, and GBS-unknown patients. We compared the incidence of composite adverse neonatal outcomes (primary outcome) among the three study groups, while secondary outcome measure was composite adverse maternal outcomes., Results: A total of 542 women were included in the study, of which 135 were GBS-positive, 361 GBS-negative, and 46 GBS-unknown status. Demographic, obstetric, and intra-partum characteristics were similar for all groups. Adverse neonatal outcomes were observed in 8 (5.9%), 31 (8.6%), and 2 (4.3%) in the GBS-positive, GBS-negative, and unknown groups, respectively (P = 0.530), (Odds Ratio between GBS-Positive vs. GBS-Negative groups 0.67 (95%, CI = 0.30-1.50)); while composite adverse maternal outcomes occurred in 9 (6.66%), 31 (8.59%), and 5 (10.87%) in the GBS-positive, GBS-negative, and unknown groups, respectively (P = 0.617)., Conclusions: Antepartum membrane stripping in GBS carriers appears to be a safe obstetrical procedure that does not adversely affect maternal or neonatal outcomes.
- Published
- 2015
- Full Text
- View/download PDF
14. Tricuspid Regurgitation Following Implantation of Endocardial Leads: Incidence and Predictors.
- Author
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Lee RC, Friedman SE, Kono AT, Greenberg ML, and Palac RT
- Subjects
- Aged, Endocardium, Female, Humans, Incidence, Male, Predictive Value of Tests, Prosthesis Implantation adverse effects, Retrospective Studies, Tricuspid Valve Insufficiency diagnostic imaging, Ultrasonography, Defibrillators, Implantable adverse effects, Pacemaker, Artificial adverse effects, Tricuspid Valve Insufficiency epidemiology, Tricuspid Valve Insufficiency etiology
- Abstract
Background: Endocardial leads, permanent pacemaker (PPM), or implantable cardioverter defibrillator (ICD) placed across the tricuspid valve can lead to tricuspid regurgitation (TR). The reported incidence of this complication has varied widely. There are limited data predicting which patients will develop this complication. This study sought to describe the incidence of worsening TR post-PPM or ICD and to identify patient-specific predictors of increased TR following lead placement., Methods: Patients (N = 382) who received a PPM or ICD from January 1, 2006 to December 31, 2010 and had echocardiograms both within 365 days prior to and up to 1,200 days after device placement were studied. TR was assessed on a 6-point scale (none/trace, mild, mild to moderate, moderate, moderate to severe, severe). Primary outcome was a two-grade increase in the severity of TR. Echocardiographic and clinical predictors of worsening TR were examined using multivariate regression., Results: A two-grade increase in TR occurred in 10.0% of our patient population. Age, lead position, atrial fibrillation, right atrial (RA) area, right ventricular systolic pressure (RVSP), left atrial area, and severity of mitral regurgitation were univariate predictors of worsening TR post lead placement. In the multivariate analysis, predevice RA area and RVSP were associated with increased TR after endocardial lead placement. Percentage of time spent pacing did not appear to be associated with increased TR., Conclusion: The incidence of increased TR postendocardial lead placement was 10.0%; this is lower than prior estimates. Predevice RA area and RVSP are predictors of increased TR after lead placement., (© 2015 Wiley Periodicals, Inc.)
- Published
- 2015
- Full Text
- View/download PDF
15. APPLYING POSITIVE PSYCHOLOGY TO THE PRACTICE OF MEDICINE.
- Author
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Friedman SE and Levy E
- Subjects
- Group Practice, Organizational Culture, Delivery of Health Care, Job Satisfaction, Personnel Management methods
- Published
- 2014
16. Warfarin for stroke prevention following anterior ST-elevation myocardial infarction.
- Author
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Buss NI, Friedman SE, Andrus BW, and DeVries JT
- Subjects
- Aged, Anticoagulants adverse effects, Brain Ischemia etiology, Brain Ischemia mortality, Female, Hemorrhage chemically induced, Heparin, Low-Molecular-Weight therapeutic use, Humans, Male, Middle Aged, Myocardial Infarction complications, Myocardial Infarction diagnosis, Myocardial Infarction mortality, Myocardial Infarction physiopathology, New Hampshire, Prospective Studies, Registries, Risk Factors, Stroke etiology, Stroke mortality, Stroke Volume, Thrombosis etiology, Thrombosis mortality, Time Factors, Treatment Outcome, Ventricular Function, Left, Warfarin adverse effects, Anticoagulants therapeutic use, Brain Ischemia prevention & control, Myocardial Infarction drug therapy, Stroke prevention & control, Thrombosis prevention & control, Warfarin therapeutic use
- Abstract
Objectives: To assess the benefit of vitamin K antagonist (VKA) therapy for prevention of ischemic stroke following anterior ST-elevation myocardial infarction (STEMI) in patients with reduced ejection fraction., Methods: A prospective institutional-based registry was used to identify survivors of anterior STEMI with a post-STEMI ejection fraction of 40% or less over a 10-year period. Clinical and procedural characteristics were collected from medical records and vital status from the Social Security Death Index. Outcomes were compared on the basis of VKA use. The primary outcome was a composite of ischemic stroke, death, and clinically relevant bleeding. A secondary analysis examined the effects of low-molecular-weight heparin bridging therapy., Results: The primary outcome occurred in 24.7% (40/162) of VKA patients and 20.5% (22/107) of non-VKA patients [adjusted hazard ratio (HR), 1.30; 95% confidence interval (CI), 0.71-2.31]. Ischemic stroke occurred in 2.5 and 0.9% of VKA patients and non-VKA patients, respectively (adjusted HR, 2.81; 95% CI, 0.31-25.1). There was no significant difference in the rate of bleeding or death between groups. The addition of a low-molecular-weight heparin bridge to VKA therapy was associated with increased bleeding events (adjusted HR, 2.55; 95% CI, 1.04-6.24)., Conclusion: Ischemic stroke was infrequent in the 6 months following anterior STEMI irrespective of VKA treatment status. The routine use of anticoagulation for prevention of stroke following anterior STEMI may not be warranted.
- Published
- 2013
- Full Text
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17. Cardiac catheterization in the dialysis population in 2012: we know more, but much remains unknown.
- Author
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Costa SP, Jayne JE, Friedman SE, and Lentine KL
- Subjects
- Cause of Death trends, Global Health, Humans, Kidney Failure, Chronic therapy, Prevalence, Prognosis, Risk Factors, Survival Rate trends, Angioplasty, Balloon, Coronary methods, Cardiac Catheterization, Coronary Artery Disease epidemiology, Coronary Artery Disease etiology, Coronary Artery Disease therapy, Kidney Failure, Chronic complications, Renal Dialysis adverse effects, Risk Assessment
- Abstract
Chronic kidney disease is now widely accepted as an independent risk factor for coronary disease and the dialysis population may represent the highest risk subgroup. Among all dialysis patients, a cardiac cause of mortality has been estimated at 40%. In addition, prior studies have demonstrated that when cardiac catheterization is obtained in a consecutive series of asymptomatic diabetic patients on dialysis the rates of coronary disease can approach 50%. However, the ability to define the problem continues to be greater than the ability to treat or prevent it. Coronary revascularization strategies have limitations in the general population which are amplified in the dialysis population. The ability to accurately diagnose an acute coronary syndrome is more difficult, clinical outcomes have a smaller margin of benefit, and technical challenges result in higher complication rates. Recent data demonstrate an inverse relationship between glomerular filtration rate and the risk of presenting with an acute myocardial infarction rather than unstable angina suggesting that patients with CKD may have a unique pathophysiologic profile that is more prone to plaque rupture. However, these "vulnerable" plaques typically are associated with stenoses <50% prior to rupture and are thus poor targets for revascularization and perhaps best treated with medical therapy. Although the benefits of revascularization may continue to outweigh the risks in the context of acute coronary syndromes, preventive strategies would have to overcome the lower margin of benefit and higher complication rates., (© 2012 Wiley Periodicals, Inc.)
- Published
- 2012
- Full Text
- View/download PDF
18. Obesity and pulmonary hypertension: a review of pathophysiologic mechanisms.
- Author
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Friedman SE and Andrus BW
- Abstract
Pulmonary hypertension (PH) is a potentially life-threatening condition arising from a wide variety of pathophysiologic mechanisms. Effective treatment requires a systematic diagnostic approach to identify all reversible mechanisms. Many of these mechanisms are relevant to those afflicted with obesity. The unique mechanisms of PH in the obese include obstructive sleep apnea, obesity hypoventilation syndrome, anorexigen use, cardiomyopathy of obesity, and pulmonary thromboembolic disease. Novel mechanisms of PH in the obese include endothelial dysfunction and hyperuricemia. A wide range of effective therapies exist to mitigate the disability of PH in the obese.
- Published
- 2012
- Full Text
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19. A call to action: variability in guidelines for cardiac evaluation before renal transplantation.
- Author
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Friedman SE, Palac RT, Zlotnick DM, Chobanian MC, and Costa SP
- Subjects
- Adult, Aged, Databases, Factual statistics & numerical data, Exercise Test statistics & numerical data, Guideline Adherence statistics & numerical data, Humans, Kidney Failure, Chronic epidemiology, Kidney Transplantation statistics & numerical data, Middle Aged, Myocardial Ischemia epidemiology, Myocardial Ischemia therapy, Myocardial Revascularization statistics & numerical data, Preoperative Care statistics & numerical data, Retrospective Studies, Risk Factors, Exercise Test standards, Kidney Failure, Chronic surgery, Kidney Transplantation standards, Myocardial Ischemia diagnosis, Practice Guidelines as Topic, Preoperative Care standards
- Abstract
Background and Objectives: Candidates for renal transplantation are at increased risk for complications related to cardiovascular disease; however, the optimal strategy to reduce this risk is not clear. The aim of this study was to evaluate the variability among existing guidelines for preoperative cardiac evaluation of renal transplant candidates., Design, Setting, Participants, & Measurements: A consecutive series of renal transplant candidates (n=204) were identified, and four prominent preoperative cardiac evaluation guidelines, pertaining to this population, were retrospectively applied to determine the rate at which each guideline recommended cardiac stress testing., Results: The rate of pretransplant cardiac stress testing would have ranged from 20 to 100% depending on which guideline was applied. The American Heart Association/American College of Cardiology (ACC/AHA) guideline resulted in the lowest rate of testing (20%). In our population, 178 study subjects underwent stress testing: 17 were found to have ischemia and 10 underwent revascularization. The ACC/AHA approach would have decreased the number of noninvasive tests from 178 to 39; it would have identified only 4 of the 10 patients who underwent revascularization. The three other guidelines (renal transplant-specific guidelines) recommended widespread pretransplant cardiac testing and thus identified nearly all patients who had ischemia on stress testing., Conclusions: The ACC/AHA perioperative guideline may be inadequate for identifying renal transplant candidates with coronary disease; however, renal transplant-specific guidelines may provoke significant overtesting. An intermediate approach based on risk factors specific to the ESRD population may optimize detection of coronary disease and limit testing., (Copyright © 2011 by the American Society of Nephrology)
- Published
- 2011
- Full Text
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20. "Keep your laws off my body": abortion regulation and the takings clause.
- Author
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Looper-Friedman SE
- Subjects
- Abortion, Induced, Female, Human Body, Humans, Privacy, Reproduction, Supreme Court Decisions, United States, Abortion, Legal, Civil Rights, Freedom, Government Regulation, Jurisprudence, Ownership, Personal Autonomy, Pregnancy, Pregnant Women, Social Control, Formal, Women's Rights
- Published
- 1995
21. Erythrocyte viability in postoperative autotransfusion.
- Author
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Davis RJ, Agnew DK, Shealy CR, and Friedman SE
- Subjects
- Adolescent, Adult, Chromium Radioisotopes, Female, Humans, Male, Postoperative Period, Spinal Fusion, Time Factors, Blood Transfusion, Autologous methods, Erythrocyte Aging, Erythrocyte Transfusion methods, Scoliosis surgery
- Abstract
Awareness of the potential for transmission of the spread of viral diseases through homologous blood products has led to an increasing awareness of techniques that minimize these risks. Reinfusion of postoperatively shed blood has become popular, but its efficacy has been questioned. In an effort to determine the viability of postoperatively collected cells, 10 consecutive patients undergoing an identical surgical procedure were studied; their blood was tagged with chromium 51 and reinfused. Reinfused cells were then monitored serially at determined intervals and expressed as a percentage of postinfusion activity. At 4 days, 75.9% of initial activity remained. These figures are comparable to those previously reported for intraoperative and preoperative cell collection. Blood salvaged postoperatively is not significantly damaged and is as viable as blood collected from other autologous and homologous sources.
- Published
- 1993
- Full Text
- View/download PDF
22. Mineral content of bone: measurement by energy subtraction digital chest radiography.
- Author
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Friedman SE, Dubovsky EV, Dubovsky J, Alexander CB, Robinson CA, Sabbagh EA, Barnes GT, and Fraser RG
- Subjects
- Adult, Aged, Bone and Bones diagnostic imaging, Humans, Male, Middle Aged, Osteoporosis diagnostic imaging, Osteoporosis metabolism, Radionuclide Imaging, Ribs analysis, Ribs diagnostic imaging, Bone and Bones analysis, Calcium analysis, Radiographic Image Enhancement, Radiography, Thoracic, Subtraction Technique
- Abstract
Several methods are presently available for measuring the mineral content of bone. Those in widespread use include dual-photon absorptiometry and quantitative CT. The feasibility of using dual-energy digital chest radiography for determination of the mineral content of posterior ribs on digital chest images was studied by using a prototype unit. The results showed a significant difference in the mineral density of the posterior ribs of control subjects and those of patients who had osteoporosis (251.1 +/- 36 mg Ca2+/cm2 of rib vs 158.8 +/- 48 mg Ca2+/cm2, p less than or equal to .01) and a close correlation with values obtained by dual-photon absorptiometry of the lumbar spine (r = .77). The results suggest that this technique can provide an accurate assessment of the presence or absence of osteoporosis.
- Published
- 1987
- Full Text
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23. Radiographic manifestations of bronchiolitis obliterans with organizing pneumonia vs usual interstitial pneumonia.
- Author
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Chandler PW, Shin MS, Friedman SE, Myers JL, and Katzenstein AL
- Subjects
- Adult, Aged, Bronchitis pathology, Diagnosis, Differential, Female, Humans, Lung pathology, Male, Middle Aged, Pneumonia pathology, Pulmonary Fibrosis pathology, Radiography, Bronchitis diagnostic imaging, Pneumonia diagnostic imaging, Pulmonary Fibrosis diagnostic imaging
- Abstract
The radiographic findings in 24 cases of bronchiolitis obliterans with organizing pneumonia and 16 cases of usual interstitial pneumonia were reviewed and compared. Some cases of bronchiolitis obliterans with organizing pneumonia have been mistaken for usual interstitial pneumonia, although the two diseases have distinct pathologic findings. Clinically, the diseases often have different manifestations. Bronchiolitis obliterans with organizing pneumonia has a better prognosis and often responds well to steroids. This study shows that the radiologic findings of bronchiolitis obliterans include alveolar opacities without lung-volume loss. Patients with usual interstitial pneumonia, however, have bilateral diffuse interstitial opacities with occasional honeycomb changes, and there is loss of lung volume in most patients. These findings suggest that the chest radiograph can aid in distinguishing the two diseases.
- Published
- 1986
- Full Text
- View/download PDF
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