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Medical Specialties Commons

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Journal Articles

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Articles 1201 - 1230 of 2016

Full-Text Articles in Medical Specialties

Microvolt T-Wave Alternans In Patients Undergoing Elective Coronary Artery Bypass Grafting: A Pilot Study, G. Khoueiry, M. Abdallah, M. Shariff, M. Kowalski, J. Lafferty Jan 2015

Microvolt T-Wave Alternans In Patients Undergoing Elective Coronary Artery Bypass Grafting: A Pilot Study, G. Khoueiry, M. Abdallah, M. Shariff, M. Kowalski, J. Lafferty

Journal Articles

INTRODUCTION: We designed a prospective observational study targeting a selective population of patients undergoing elective coronary artery bypass grafting with normal systolic function. In this study we looked at the prevalence of pre-operative microvolt T-wave alternans and if it predicts atrial fibrillation after surgery. METHODS: The inclusion criteria included all patients referred to the cardiothoracic outpatient clinic for elective bypass, who can perform aerobic exercise, with a recent exercise stress test exercising at least to 85% of the maximal predicted heart rate (220 - age) and with non-limiting chest pain at maximal exercise. Twenty patients met the inclusion/exclusion criteria between …


Left Ventricular Metastasis From A Primary Pancreatobiliary Tumor, A. N. Makaryus, L. Boxt Jan 2015

Left Ventricular Metastasis From A Primary Pancreatobiliary Tumor, A. N. Makaryus, L. Boxt

Journal Articles

Metastatic disease to the heart is not uncommon. We describe a case of a man in his 60s with an unusual metastasis to the heart and detail its intracardiac location by means of cardiac computerized tomography (CCT) and transthoracic echocardiography. To our knowledge, this is the first report of a pancreatobiliary tumor metastasizing exclusively to the left ventricle (LV) of the heart.


A Case Of Ventricular Fibrillation Triggered By Ventricular Premature Depolarizations Exiting From Different Sites Of The Purkinje Network, S. E. Mountantonakis, H. Ismail, D. Lin Jan 2015

A Case Of Ventricular Fibrillation Triggered By Ventricular Premature Depolarizations Exiting From Different Sites Of The Purkinje Network, S. E. Mountantonakis, H. Ismail, D. Lin

Journal Articles

No abstract provided.


Interest In Bariatric Surgery Among Obese Patients With Obstructive Sleep Apnea, K. A. Dudley, A. Tavakkoli, R. A. Andrews, A. N. Seiger, J. P. Bakker, S. R. Patel Jan 2015

Interest In Bariatric Surgery Among Obese Patients With Obstructive Sleep Apnea, K. A. Dudley, A. Tavakkoli, R. A. Andrews, A. N. Seiger, J. P. Bakker, S. R. Patel

Journal Articles

BACKGROUND: Standard obstructive sleep apnea (OSA) therapies are poorly tolerated. Bariatric surgery is a potential alternative but the level of interest in this intervention among OSA patients is unknown. OBJECTIVES: Determine the proportion of OSA patients who would be interested in bariatric surgery. SETTING: Sleep clinics, United States. METHODS: Consecutive adult patients with untreated severe OSA and a body mass index of 35-45 kg/m2 were approached. Patients at low perioperative risk and no urgent indication for OSA treatment were invited to a separate informational visit about bariatric surgery as primary treatment for OSA. RESULTS: Of 767 eligible patients, 230 (30.0%) …


Prothrombin Time And Activated Partial Thromboplastin Time Testing: A Comparative Effectiveness Study In A Million-Patient Sample, M. N. Capoor, J. L. Stonemetz, J. C. Baird, F. S. Ahmed, A. Awan, C. Birkenmaier, M. A. Inchiosa, S. K. Magid, K. Mcgoldrick, E. Molmenti, S. Naqvi, S. D. Parker, S. M. Pothula, A. Shander, R. G. Steen, M. K. Urban, J. Wall, V. A. Fischetti Jan 2015

Prothrombin Time And Activated Partial Thromboplastin Time Testing: A Comparative Effectiveness Study In A Million-Patient Sample, M. N. Capoor, J. L. Stonemetz, J. C. Baird, F. S. Ahmed, A. Awan, C. Birkenmaier, M. A. Inchiosa, S. K. Magid, K. Mcgoldrick, E. Molmenti, S. Naqvi, S. D. Parker, S. M. Pothula, A. Shander, R. G. Steen, M. K. Urban, J. Wall, V. A. Fischetti

Journal Articles

Background A substantial fraction of all American healthcare expenditures are potentially wasted, and practices that are not evidence-based could contribute to such waste. We sought to characterize whether Prothrombin Time (PT) and activated Partial Thromboplastin Time (aPTT) tests of preoperative patients are used in a way unsupported by evidence and potentially wasteful. Methods and Findings We evaluated prospectively-collected patient data from 19 major teaching hospitals and 8 hospital-affiliated surgical centers in 7 states (Delaware, Florida, Maryland, Massachusetts, New Jersey, New York, Pennsylvania) and the District of Columbia. A total of 1,053,472 consecutive patients represented every patient admitted for elective surgery …


Surgeon Motivations Behind The Timing Of Breast Reconstruction In Patients Requiring Postmastectomy Radiation Therapy, M. Lee, E. Reinertsen, E. Mcclure, S. Liu, L. Kruper, N. Tanna, J. Brian Boyd, J. W. Granzow Jan 2015

Surgeon Motivations Behind The Timing Of Breast Reconstruction In Patients Requiring Postmastectomy Radiation Therapy, M. Lee, E. Reinertsen, E. Mcclure, S. Liu, L. Kruper, N. Tanna, J. Brian Boyd, J. W. Granzow

Journal Articles

OBJECTIVES: Although postmastectomy radiation therapy (PMRT) has been shown to reduce breast cancer burden and improve survival, PMRT may negatively influence outcomes after reconstruction. The goal of this study was to compare current opinions of plastic and reconstructive surgeons (PRS) and surgical oncologists (SO) regarding the optimal timing of breast reconstruction for patients requiring PMRT. METHODS: Members of the American Society of Plastic Surgeons (ASPS), the American Society of Breast Surgeons (ASBS), and the Society of Surgical Oncology (SSO) were asked to participate in an anonymous web-based survey. Responses were solicited in accordance to the Dillman method, and they were …


Primary Xanthoma Of The Mandible: Report Of A Rare Case, D. Morel, R. D. Kelsch, P. J. Nolan Jan 2015

Primary Xanthoma Of The Mandible: Report Of A Rare Case, D. Morel, R. D. Kelsch, P. J. Nolan

Journal Articles

Xanthoma is a lesion most commonly seen in soft tissues such as the skin, subcutis, or tendon sheaths. Xanthoma formation is often associated with primary or secondary hyperlipidemia. Primary bone xanthomas are extremely rare benign bone lesions not associated with hyperlipidemia, histopathologically characterized by histiocytes, abundant lipid containing macrophages (foam cells), and multinucleated giant cells. Cholesterol clefts can be found in the medullary bone. Less than ten cases of xanthoma in the mandible have been reported. We present a rare primary intrabony xanthoma in a normolipidemic patient.


An Innovative Interactive Modeling Tool To Analyze Scenario-Based Physician Workforce Supply And Demand, S. Gupta, W. S. Black-Schaffer, J. M. Crawford, D. Gross, D. S. Karcher, J. Kaufman, D. Knapman, S. Weintraub, M. B. Cohen, S. J. Robboy, +8 Additional Authors Jan 2015

An Innovative Interactive Modeling Tool To Analyze Scenario-Based Physician Workforce Supply And Demand, S. Gupta, W. S. Black-Schaffer, J. M. Crawford, D. Gross, D. S. Karcher, J. Kaufman, D. Knapman, S. Weintraub, M. B. Cohen, S. J. Robboy, +8 Additional Authors

Journal Articles

Effective physician workforce management requires that the various organizations comprising the House of Medicine be able to assess their current and future workforce supply. This information has direct relevance to funding of graduate medical education. We describe a dynamic modeling tool that examines how individual factors and practice variables can be used to measure and forecast the supply and demand for existing and new physician services. The system we describe, while built to analyze the pathologist workforce, is sufficiently broad and robust for use in any medical specialty. Our design provides a computer-based software model populated with data from surveys …


Pituitary Carcinoma With Intraspinal Metastasis: Report Of Two Cases And Review Of The Literature, Y. Q. Wang, T. Fan, X. G. Zhao, C. Liang, X. L. Qi, J. Y. Li Jan 2015

Pituitary Carcinoma With Intraspinal Metastasis: Report Of Two Cases And Review Of The Literature, Y. Q. Wang, T. Fan, X. G. Zhao, C. Liang, X. L. Qi, J. Y. Li

Journal Articles

No abstract provided.


Negative Symptoms And Impaired Social Functioning Predict Later Psychosis In Latino Youth At Clinical High Risk In The North American Prodromal Longitudinal Studies Consortium, Tracy Alderman, Jean Addington, Carrie Bearden, Tyrone D. Cannon, B. A. Cornblatt, Thomas H. Mcglashan, Diana O. Perkins, Elaine F. Walker, Scott W. Woods, Kristin S. Cadenhead, +2 Additional Authors Jan 2015

Negative Symptoms And Impaired Social Functioning Predict Later Psychosis In Latino Youth At Clinical High Risk In The North American Prodromal Longitudinal Studies Consortium, Tracy Alderman, Jean Addington, Carrie Bearden, Tyrone D. Cannon, B. A. Cornblatt, Thomas H. Mcglashan, Diana O. Perkins, Elaine F. Walker, Scott W. Woods, Kristin S. Cadenhead, +2 Additional Authors

Journal Articles

No abstract provided.


Alcohol Confounds Relationship Between Cannabis Misuse And Psychosis Conversion In A High-Risk Sample, A. M. Auther, K. S. Cadenhead, R. E. Carrion, J. Addington, C. E. Bearden, T. D. Cannon, T. H. Mcglashan, E. F. Walker, S. W. Woods, B. A. Cornblatt, +3 Additional Authors Jan 2015

Alcohol Confounds Relationship Between Cannabis Misuse And Psychosis Conversion In A High-Risk Sample, A. M. Auther, K. S. Cadenhead, R. E. Carrion, J. Addington, C. E. Bearden, T. D. Cannon, T. H. Mcglashan, E. F. Walker, S. W. Woods, B. A. Cornblatt, +3 Additional Authors

Journal Articles

ObjectiveCannabis use has been examined as a predictor of psychosis in clinical high-risk (CHR) samples, but little is known about the impact of other substances on this relationship. MethodSubstance use was assessed in a large sample of CHR participants (N=370, mean age=18.3) enrolled in the multisite North American Prodrome Longitudinal Study Phase 1 project. Three hundred and forty-one participants with cannabis use data were divided into groups: No Use (NU, N=211); Cannabis Use without impairment (CU, N=63); Cannabis Abuse/Dependence (CA/CD, N=67). Participants (N=283) were followed for 2years to determine psychosis conversion. ResultsAlcohol (45.3%) and cannabis (38.1%) were the most common …


Interpersonal Functioning In Obsessive-Compulsive Personality Disorder, N. M. Cain, E. B. Ansell, H. B. Simpson, A. Pinto Jan 2015

Interpersonal Functioning In Obsessive-Compulsive Personality Disorder, N. M. Cain, E. B. Ansell, H. B. Simpson, A. Pinto

Journal Articles

The core symptoms of obsessive-compulsive personality disorder (OCPD) often lead to interpersonal difficulties. However, little research has explored interpersonal functioning in OCPD. This study examined interpersonal problems, interpersonal sensitivities, empathy, and systemizing, the drive to analyze and derive underlying rules for systems, in a sample of 25 OCPD individuals, 25 individuals with comorbid OCPD and obsessive-compulsive disorder (OCD), and 25 healthy controls. We found that OCPD individuals reported hostile-dominant interpersonal problems and sensitivities with warm-dominant behavior by others, whereas OCPD+OCD individuals reported submissive interpersonal problems and sensitivities with warm-submissive behavior by others. Individuals with OCPD, with and without OCD, reported …


Ld Score Regression Distinguishes Confounding From Polygenicity In Genome-Wide Association Studies, B. K. Bulik-Sullivan, P. R. Loh, H. K. Finucane, S. Ripke, J. Yang, N. Patterson, M. J. Daly, A. L. Price, B. M. Neale, A. Malhotra Jan 2015

Ld Score Regression Distinguishes Confounding From Polygenicity In Genome-Wide Association Studies, B. K. Bulik-Sullivan, P. R. Loh, H. K. Finucane, S. Ripke, J. Yang, N. Patterson, M. J. Daly, A. L. Price, B. M. Neale, A. Malhotra

Journal Articles

Both polygenicity (many small genetic effects) and confounding biases, such as cryptic relatedness and population stratification, can yield an inflated distribution of test statistics in genome-wide association studies (GWAS). However, current methods cannot distinguish between inflation from a true polygenic signal and bias. We have developed an approach, LD Score regression, that quantifies the contribution of each by examining the relationship between test statistics and linkage disequilibrium (LD). The LD Score regression intercept can be used to estimate a more powerful and accurate correction factor than genomic control. We find strong evidence that polygenicity accounts for the majority of the …


Neurologic Recovery After An Exam Consistent With Brain Death In An Adolescent With Severe Asthma, L. B. Glater-Welt, A. D. Kessel Jan 2015

Neurologic Recovery After An Exam Consistent With Brain Death In An Adolescent With Severe Asthma, L. B. Glater-Welt, A. D. Kessel

Journal Articles

No abstract provided.


A Common Polymorphism In Scn2a Predicts General Cognitive Ability Through Effects On Pfc Physiology, M. A. Scult, J. W. Trampush, F. Zheng, E. D. Conley, T. Lencz, A. K. Malhotra, D. Dickinson, D. R. Weinberger, A. R. Hariri Jan 2015

A Common Polymorphism In Scn2a Predicts General Cognitive Ability Through Effects On Pfc Physiology, M. A. Scult, J. W. Trampush, F. Zheng, E. D. Conley, T. Lencz, A. K. Malhotra, D. Dickinson, D. R. Weinberger, A. R. Hariri

Journal Articles

Here we provide novel convergent evidence across three independent cohorts of healthy adults (n = 531), demonstrating that a common polymorphism in the gene encoding the alpha2 subunit of neuronal voltage-gated type II sodium channels (SCN2A) predicts human general cognitive ability or "g." Using meta-analysis, we demonstrate that the minor T allele of a common polymorphism (rs10174400) in SCN2A is associated with significantly higher "g" independent of gender and age. We further demonstrate using resting-state fMRI data from our discovery cohort (n = 236) that this genetic advantage may be mediated by increased capacity for information processing between the dorsolateral …


Demographic Correlates Of Attenuated Positive Psychotic Symptoms, R. N. Waford, A. Macdonald, K. S. Cadenhead, T. D. Cannon, B. A. Cornblatt, R. Heinssen, D. O. Perkins, L. J. Seidman, S. W. Woods, T. H. Mcglashan, +8 Additional Authors Jan 2015

Demographic Correlates Of Attenuated Positive Psychotic Symptoms, R. N. Waford, A. Macdonald, K. S. Cadenhead, T. D. Cannon, B. A. Cornblatt, R. Heinssen, D. O. Perkins, L. J. Seidman, S. W. Woods, T. H. Mcglashan, +8 Additional Authors

Journal Articles

It is now well established that the utilization of standardized clinical criteria can enhance prediction of psychosis. These criteria are primarily concerned with the presence and severity of attenuated positive symptoms. Because these symptom criteria are used to derive algorithms for designating clinical high risk (CHR) status and for maximizing prediction of psychosis risk, it is important to know whether the symptom ratings vary as a function of demographic factors that have previously been linked with symptoms in diagnosed psychotic patients. Using a sample of 356 CHR individuals from the NAPLS-II multi-site study, we examined the relation of three sex, …


Association Of A Schizophrenia Risk Variant At The Drd2 Locus With Antipsychotic Treatment Response In First-Episode Psychosis, J. P. Zhang, D. G. Robinson, Juan Gallego, M. John, J. Yu, J. Addington, M. Tohen, John Kane, Anil Malhotra, T. Lencz Jan 2015

Association Of A Schizophrenia Risk Variant At The Drd2 Locus With Antipsychotic Treatment Response In First-Episode Psychosis, J. P. Zhang, D. G. Robinson, Juan Gallego, M. John, J. Yu, J. Addington, M. Tohen, John Kane, Anil Malhotra, T. Lencz

Journal Articles

Findings from the Psychiatric Genomics Consortium genome-wide association study (GWAS) showed that variation at the DRD2 locus is associated with schizophrenia risk. However, the functional significance of rs2514218, the top DRD2 single nucleotide polymorphism in the GWAS, is unknown. Dopamine D2 receptor binding is a common mechanism of action for all antipsychotic drugs, and DRD2 variants were related to antipsychotic response in previous studies. The present study examined whether rs2514218 genotype could predict antipsychotic response, including efficacy and adverse events, in a cohort of patients with first episode of psychosis treated with either risperidone or aripiprazole for 12 weeks. Subjects …


Clinical And Functional Outcomes After 2 Years In The Early Detection And Intervention For The Prevention Of Psychosis Multisite Effectiveness Trial, W. R. Mcfarlane, B. Levin, L. Travis, F. L. Lucas, S. Lynch, M. Verdi, Barbara Cornblatt, S. F. Taylor, A. M. Auther, E. Spring, +11 Additional Authors Jan 2015

Clinical And Functional Outcomes After 2 Years In The Early Detection And Intervention For The Prevention Of Psychosis Multisite Effectiveness Trial, W. R. Mcfarlane, B. Levin, L. Travis, F. L. Lucas, S. Lynch, M. Verdi, Barbara Cornblatt, S. F. Taylor, A. M. Auther, E. Spring, +11 Additional Authors

Journal Articles

OBJECTIVE: To test effectiveness of the Early Detection, Intervention, and Prevention of Psychosis Program in preventing the onset of severe psychosis and improving functioning in a national sample of at-risk youth. METHODS: In a risk-based allocation study design, 337 youth (age 12-25) at risk of psychosis were assigned to treatment groups based on severity of positive symptoms. Those at clinically higher risk (CHR) or having an early first episode of psychosis (EFEP) were assigned to receive Family-aided Assertive Community Treatment (FACT); those at clinically lower risk (CLR) were assigned to receive community care. Between-groups differences on outcome variables were adjusted …


Reciprocal Interaction Of Wnt And Rxr-Alpha Pathways In Hepatocyte Development And Hepatocellular Carcinoma, J. Li, M. Chanrion, E. Sawey, T. Wang, E. Chow, A. Tward, Y. Su, W. Xue, R. Lucito, L. Zender, +3 Additional Authors Jan 2015

Reciprocal Interaction Of Wnt And Rxr-Alpha Pathways In Hepatocyte Development And Hepatocellular Carcinoma, J. Li, M. Chanrion, E. Sawey, T. Wang, E. Chow, A. Tward, Y. Su, W. Xue, R. Lucito, L. Zender, +3 Additional Authors

Journal Articles

Genomic analysis of human hepatocellular carcinoma (HCC) is potentially confounded by the differentiation state of the hepatic cell-of-origin. Here we integrated genomic analysis of mouse HCC (with defined cell-of-origin) along with normal development. We found a major shift in expression of Wnt and RXR-alpha pathway genes (up and down, respectively) coincident with the transition from hepatoblasts to hepatocytes. A combined Wnt and RXR-alpha gene signature categorized HCCs into two subtypes (high Wnt, low RXR-alpha and low Wnt, high RXR-alpha), which matched cell-of-origin in mouse models and the differentiation state of human HCC. Suppression of RXR-alpha levels in hepatocytes increased Wnt …


Endoscopic Lysis Of Bladder Scar Associated With Hunner's Lesions: A New Technique, S. Bahlani, R. Moldwin Jan 2015

Endoscopic Lysis Of Bladder Scar Associated With Hunner's Lesions: A New Technique, S. Bahlani, R. Moldwin

Journal Articles

AbstractObjective Five to ten percent of interstitial cystitis/bladder pain syndrome (IC/BPS) patients have Hunner's lesions (HL), areas of non-specific inflammation and scarring. The poor quality of life of patients with HL is entwined in associated pain and loss of bladder capacity. Although the decrease in bladder capacity is usually dependent on pain, it may also be dependent upon scarring and associated compliance changes produced by the inflammatory process. This report reviews the potential role of endoscopic scar lysis using the holmium laser in the management of these patients whose only other therapeutic option is urinary diversion. Methods Two patients with …


Quality Of Life And Symptom Assessment In Randomized Clinical Trials Of Bladder Cancer: A Systematic Review, M. A. Feuerstein, M. Jacobs, A. Piciocchi, B. Bochner, A. Pusic, P. Fayers, J. Blazeby, F. Efficace, Promotion Registry Patient-Reported Outcome Measurements Over Time In Oncology Jan 2015

Quality Of Life And Symptom Assessment In Randomized Clinical Trials Of Bladder Cancer: A Systematic Review, M. A. Feuerstein, M. Jacobs, A. Piciocchi, B. Bochner, A. Pusic, P. Fayers, J. Blazeby, F. Efficace, Promotion Registry Patient-Reported Outcome Measurements Over Time In Oncology

Journal Articles

OBJECTIVES: Patient-reported outcomes (PRO) help patients, caretakers, clinicians, and policy makers make informed decisions regarding treatment effectiveness. Our objective was to assess the quality of PRO reporting and methodological strengths and weaknesses in randomized controlled trials (RCT) in bladder cancer.; METHODS: A systematic literature search of bladder cancer RCT published between January 2004 and March 2014 was performed. Relevant studies were evaluated using a predetermined extraction form that included trial demographics, clinical and PRO characteristics, and standards of PRO reporting based on recommendations of the International Society for Quality of Life Research.; RESULTS: In total, 9 RCTs enrolling 1,237 patients …


Association Of Meniscal Status, Lower Extremity Alignment, And Body Mass Index With Chondrosis At Revision Anterior Cruciate Ligament Reconstruction, R. H. Brophy, A. K. Haas, L. J. Huston, S. K. Nwosu, R. W. Wright, E. Hershman Jan 2015

Association Of Meniscal Status, Lower Extremity Alignment, And Body Mass Index With Chondrosis At Revision Anterior Cruciate Ligament Reconstruction, R. H. Brophy, A. K. Haas, L. J. Huston, S. K. Nwosu, R. W. Wright, E. Hershman

Journal Articles

BACKGROUND: Knees undergoing revision anterior cruciate ligament reconstruction (rACLR) have a high prevalence of articular cartilage lesions. HYPOTHESIS: The prevalence of chondrosis at the time of rACLR is associated with meniscal status and lower extremity alignment. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Data from the prospective Multicenter ACL Revision Study (MARS) cohort were reviewed to identify patients with preoperative lower extremity alignment films. Lower extremity alignment was defined by the weightbearing line (WBL) as a percentage of the tibial plateau width, while the chondral and meniscal status of each weightbearing compartment was recorded at the time of …


Patient Expectations And Long-Term Outcomes In Rheumatoid Arthritis Patients: Results From The Sara (Silicone Arthroplasty In Rheumatoid Arthritis) Study, K. C. Chung, K. W. Nellans, P. B. Burns, E. F. S. Wilgis, F. D. Burke, D. A. Fox, H. M. Kim Jan 2015

Patient Expectations And Long-Term Outcomes In Rheumatoid Arthritis Patients: Results From The Sara (Silicone Arthroplasty In Rheumatoid Arthritis) Study, K. C. Chung, K. W. Nellans, P. B. Burns, E. F. S. Wilgis, F. D. Burke, D. A. Fox, H. M. Kim

Journal Articles

Little evidence exists to understand the influence of patient expectations on outcomes for silicone metacarpophalangeal arthroplasty (SMPA). The purpose of this paper is to compare long-term treatment outcome experiences regarding hand function/appearance for a surgical and nonsurgical cohort of rheumatoid arthritis (RA) patients and contrast them to expectations at baseline. This sample is part of a larger multicenter prospective cohort study of RA patients enrolled from 2004 to 2008. A total of 169 RA patients with severe deformities at the metacarpophalangeal (MCP) joints were recruited in the original study. Expectations for SMPA were collected at enrollment. A follow-up patient-reported questionnaire …


Cruciate-Retaining Tka Is An Option In Patients With Prior Patellectomy, K. R. Reinhardt, S. J. Huffaker, T. S. Thornhill, R. D. Scott Jan 2015

Cruciate-Retaining Tka Is An Option In Patients With Prior Patellectomy, K. R. Reinhardt, S. J. Huffaker, T. S. Thornhill, R. D. Scott

Journal Articles

The recommendation for using posterior-stabilized (PS) implants in patellectomy patients undergoing total knee arthroplasty (TKA) is based on older case series with heterogeneous patient populations. The use of cruciate-retaining implants in these patients has not been evaluated with more contemporary implant designs. The purpose of this study was to evaluate the survivorship and functional outcomes (Knee Society score, presence of an extensor lag, and range of motion) of cruciate-retaining (CR) TKA in patients with prior patellectomy. Between 1986 and 2012, we performed 27 CR TKAs in 25 patients after patellectomy. Of those, 23 CR TKAs in 21 patients were available …


Multirater Agreement Of The Causes Of Anterior Cruciate Ligament Reconstruction Failure: A Radiographic And Video Analysis Of The Mars Cohort, M. J. Matava, R. A. Arciero, K. M. Baumgarten, J. A. Hannafin, B. S. Miller, C. W. Nissen, T. N. Taft, B. R. Wolf, E. B. Hershman, R. W. Wright, +3 Additional Authors Jan 2015

Multirater Agreement Of The Causes Of Anterior Cruciate Ligament Reconstruction Failure: A Radiographic And Video Analysis Of The Mars Cohort, M. J. Matava, R. A. Arciero, K. M. Baumgarten, J. A. Hannafin, B. S. Miller, C. W. Nissen, T. N. Taft, B. R. Wolf, E. B. Hershman, R. W. Wright, +3 Additional Authors

Journal Articles

BACKGROUND: Anterior cruciate ligament (ACL) reconstruction failure occurs in up to 10% of cases. Technical errors are considered the most common cause of graft failure despite the absence of validated studies. Limited data are available regarding the agreement among orthopaedic surgeons regarding the causes of primary ACL reconstruction failure and accuracy of graft tunnel placement. HYPOTHESIS: Experienced knee surgeons have a high level of interobserver reliability in the agreement about the causes of primary ACL reconstruction failure, anatomic graft characteristics, and tunnel placement. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 3. METHODS: Twenty cases of revision ACL reconstruction were …


A Massive Overdose Of Dalfampridine, L. J. Fil, P. Sud, S. Sattler Jan 2015

A Massive Overdose Of Dalfampridine, L. J. Fil, P. Sud, S. Sattler

Journal Articles

Multiple sclerosis (MS) is an immune mediated inflammatory disease that attacks myelinated axons in the central nervous system. Dalfampridine (4-aminopyridine) was approved by the Food and Drug Administration in January 2010 for treatment of MS. Our patient was a 34-year-old male with a history of MS, who was brought to the emergency department after being found unresponsive. His current medications were valacyclovir, temazepam, dalfampridine (4-AP) and a tysabri intravenous (IV) infusion. Fifteen minutes after arrival the patient seized. The seizures were refractory to benzodiazepines, barbiturates and phenytoin. The 4-AP level was 530ng/mL (25ng/mL and 49ng/mL). The patient stopped seizing on …


Bleb Point: Mimicker Of Pneumothorax In Bullous Lung Disease, C. Gelabert, M. Nelson Jan 2015

Bleb Point: Mimicker Of Pneumothorax In Bullous Lung Disease, C. Gelabert, M. Nelson

Journal Articles

In patients presenting with severe dyspnea, several diagnostic challenges arise in distinguishing the diagnosis of pneumothorax versus several other pulmonary etiologies like bullous lung disease, pneumonia, interstitial lung disease, and acute respiratory distress syndrome. Distinguishing between large pulmonary bullae and pneumothorax is of the utmost importance, as the acute management is very different. While multiple imaging modalities are available, plain radiographs may be inadequate to make the diagnosis and other advanced imaging may be difficult to obtain. Ultrasound has a very high specificity for pneumothorax. We present a case where a large pulmonary bleb mimics the lung point and therefore …


Not Just Painless Bleeding: Meckel's Diverticulum As A Cause Of Small Bowel Obstruction In Children-Two Cases And A Review Of The Literature, K. Itriyeva, M. Harris, J. Rocker, R. Gochman Jan 2015

Not Just Painless Bleeding: Meckel's Diverticulum As A Cause Of Small Bowel Obstruction In Children-Two Cases And A Review Of The Literature, K. Itriyeva, M. Harris, J. Rocker, R. Gochman

Journal Articles

Physicians are educated with the classical teaching that symptomatic patients with Meckel's diverticulum (MD) most often present with painless rectal bleeding. However, a review of the literature reveals that young patients with MD will most commonly present with signs of intestinal obstruction, an etiology not frequency considered in patients presenting to the emergency department with obstruction. We present two cases of intestinal obstruction diagnosed in our emergency department, with Meckel's diverticulum being the etiology.


Managing The Inherent Patient Safety Risks Of Electronic Health Records, G.S. Rudolph Jan 2015

Managing The Inherent Patient Safety Risks Of Electronic Health Records, G.S. Rudolph

Journal Articles

No abstract provided.


Hspb1 As A Novel Regulator Of Ferroptotic Cancer Cell Death, X. Sun, Z. Ou, M. Xie, R. Kang, Y. Fan, X. Niu, H. Wang, L. Cao, D. Tang Jan 2015

Hspb1 As A Novel Regulator Of Ferroptotic Cancer Cell Death, X. Sun, Z. Ou, M. Xie, R. Kang, Y. Fan, X. Niu, H. Wang, L. Cao, D. Tang

Journal Articles

Ferroptosis is an iron-dependent form of non-apoptotic cell death, but its molecular mechanism remains largely unknown. Here, we demonstrate that heat shock protein beta-1 (HSPB1) is a negative regulator of ferroptotic cancer cell death. Erastin, a specific ferroptosis-inducing compound, stimulates heat shock factor 1 (HSF1)-dependent HSPB1 expression in cancer cells. Knockdown of HSF1 and HSPB1 enhances erastin-induced ferroptosis, whereas heat shock pretreatment and overexpression of HSPB1 inhibits erastin-induced ferroptosis. Protein kinase C-mediated HSPB1 phosphorylation confers protection against ferroptosis by reducing iron-mediated production of lipid reactive oxygen species. Moreover, inhibition of the HSF1-HSPB1 pathway and HSPB1 phosphorylation increases the anticancer activity …