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Full-Text Articles in Medicine and Health Sciences

Abdominal Intercostal Hernia: A Rare Complication After Blunt Trauma., Phi D Nguyen, B.A., Michael J. Pucci, Md, Jay S. Jenoff, Md, Scott W. Cowan, Md Nov 2013

Abdominal Intercostal Hernia: A Rare Complication After Blunt Trauma., Phi D Nguyen, B.A., Michael J. Pucci, Md, Jay S. Jenoff, Md, Scott W. Cowan, Md

Department of Surgery Gibbon Society Historical Profiles

Abdominal intercostal hernia (AIH) is uncommonly reported in the literature with only 20 cases reported to date.1–3 We report a case of a delayed incarcerated AIH secondary to blunt trauma from a motor vehicle accident in which the colon and diaphragm herniated through an associated chest defect that was repaired successfully through a transabdominal approach using primary repair of the defect in combination with onlay porcine patch reinforcement.


Phenotypic Parameters Predict Time To Normalization In Infants With Hypogammaglobulinemia., Robert C. Van Winkle, Walter W. Hauck, Stephen J. Mcgeady Nov 2013

Phenotypic Parameters Predict Time To Normalization In Infants With Hypogammaglobulinemia., Robert C. Van Winkle, Walter W. Hauck, Stephen J. Mcgeady

Department of Pediatrics Faculty Papers

PURPOSE: Infants with recurrent infection may be found to have hypogammaglobulinemia without impaired specific antibody responses. Many will be diagnosed with transient hypogammaglobulinemia of infancy.

METHODS: This study used a parametric survival analysis of 100 infants with hypogammaglobulinemia to predict time to normalization.

RESULTS: Aggregate initial immunoglobulins (IgG + IgA + IgM), as a percentage of age-adjusted normal, predicted time to resolution: median time to resolution for the infants in the lowest quartile of aggregate levels (≤81 % of age-adjusted lower limits) was greater than 5 years, with 34 % resolving in 3 years. For infants in the highest quartile …


Neuropathy, Neuropathic Pain, And Sickle Cell Disease., Samir K. Ballas, Deepika S Darbari Nov 2013

Neuropathy, Neuropathic Pain, And Sickle Cell Disease., Samir K. Ballas, Deepika S Darbari

Cardeza Foundation for Hematologic Research

No abstract provided.


Multicenter Study Comparing Shunt Type In The Norwood Procedure For Single-Ventricle Lesions: Three-Dimensional Echocardiographic Analysis., Gerald R. Marx, Girish S. Shirali, Jami C. Levine, Lin T. Guey, James F. Cnota, Jeanne M. Baffa, William L. Border, Steve Colan, Gregory Ensing, Mark K. Friedberg, David J. Goldberg, Salim F. Idriss, J Blaine John, Wyman W. Lai, Minmin Lu, Shaji C. Menon, Richard G. Ohye, David Saudek, Pierre C. Wong, Gail D. Pearson, Pediatric Heart Network Investigators Nov 2013

Multicenter Study Comparing Shunt Type In The Norwood Procedure For Single-Ventricle Lesions: Three-Dimensional Echocardiographic Analysis., Gerald R. Marx, Girish S. Shirali, Jami C. Levine, Lin T. Guey, James F. Cnota, Jeanne M. Baffa, William L. Border, Steve Colan, Gregory Ensing, Mark K. Friedberg, David J. Goldberg, Salim F. Idriss, J Blaine John, Wyman W. Lai, Minmin Lu, Shaji C. Menon, Richard G. Ohye, David Saudek, Pierre C. Wong, Gail D. Pearson, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The Pediatric Heart Network's Single Ventricle Reconstruction (SVR) trial randomized infants with single right ventricles (RVs) undergoing a Norwood procedure to a modified Blalock-Taussig or RV-to-pulmonary artery shunt. This report compares RV parameters in the 2 groups using 3-dimensional echocardiography.

METHODS AND RESULTS: Three-dimensional echocardiography studies were obtained at 10 of 15 SVR centers. Of the 549 subjects, 314 underwent 3-dimensional echocardiography studies at 1 to 4 time points (pre-Norwood, post-Norwood, pre-stage II, and 14 months) for a total of 757 3-dimensional echocardiography studies. Of these, 565 (75%) were acceptable for analysis. RV volume, mass, mass:volume ratio, ejection fraction, …


Cholera Vaccination Campaign Contributes To Improved Knowledge Regarding Cholera And Improved Practice Relevant To Waterborne Disease In Rural Haiti, Omowunmi Aibana, Molly F Franke, Jessica E Teng, Johanne Hilaire, Max Raymond, Louise C Ivers Nov 2013

Cholera Vaccination Campaign Contributes To Improved Knowledge Regarding Cholera And Improved Practice Relevant To Waterborne Disease In Rural Haiti, Omowunmi Aibana, Molly F Franke, Jessica E Teng, Johanne Hilaire, Max Raymond, Louise C Ivers

Faculty, Staff and Student Publications

BACKGROUND: Haiti's cholera epidemic has been devastating partly due to underlying weak infrastructure and limited clean water and sanitation. A comprehensive approach to cholera control is crucial, yet some have argued that oral cholera vaccination (OCV) might result in reduced hygiene practice among recipients. We evaluated the impact of an OCV campaign on knowledge and health practice in rural Haiti.

METHODOLOGY/PRINCIPAL FINDINGS: We administered baseline surveys on knowledge and practice relevant to cholera and waterborne disease to every 10th household during a census in rural Haiti in February 2012 (N = 811). An OCV campaign occurred from May-June 2012 after …


Sternal Wound Infection Caused By Mycobacterium Chelonae., Shinya Unai, Joseph Miessau, Pawel Karbowski, Gurjyot Bajwa, Hitoshi Hirose Nov 2013

Sternal Wound Infection Caused By Mycobacterium Chelonae., Shinya Unai, Joseph Miessau, Pawel Karbowski, Gurjyot Bajwa, Hitoshi Hirose

Department of Surgery Faculty Papers

INTRODUCTION: Sternal wound infection caused by Mycobacterium chelonae, a member of the rapidly growing nontuberculous mycobacteria (NTM), is rare and may present without signs and symptoms of systemic infection.

METHODS: We present a patient who had a M. chelonae infection of the sternum following excision of a left atrial myxoma and conducted a review of the literature from 1976 to 2013.

RESULTS: Seventy cases of NTM sternal wound infection after cardiac surgery were identified, including six outbreaks and ten sporadic cases including the present case. Thirty-four cases were isolated coronary artery bypass grafting (CABG) surgery, 16 cases were isolated valve …


Predictors Of Disease Progression In Pediatric Dilated Cardiomyopathy., Kimberly M. Molina, Peter Shrader, Steven D. Colan, Seema Mital, Renee Margossian, Lynn A. Sleeper, Girish S. Shirali, Piers Barker, Charles E. Canter, Karen Altmann, Elizabeth Radojewski, Elif Seda Selamet Tierney, Jack Rychik, Lloyd Y. Tani, Pediatric Heart Network Investigators Nov 2013

Predictors Of Disease Progression In Pediatric Dilated Cardiomyopathy., Kimberly M. Molina, Peter Shrader, Steven D. Colan, Seema Mital, Renee Margossian, Lynn A. Sleeper, Girish S. Shirali, Piers Barker, Charles E. Canter, Karen Altmann, Elizabeth Radojewski, Elif Seda Selamet Tierney, Jack Rychik, Lloyd Y. Tani, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

Background: Despite medical advances, children with dilated cardiomyopathy (DCM) remain at high risk of death or need for cardiac transplantation. We sought to identify predictors of disease progression in pediatric DCM.

Methods and results: The Pediatric Heart Network evaluated chronic DCM patients with prospective echocardiographic and clinical data collection during an 18-month follow-up. Inclusion criteria were age <22 years and DCM disease duration >2 months. Patients requiring intravenous inotropic/mechanical support or listed status 1A/1B for transplant were excluded. Disease progression was defined as an increase in transplant listing status, hospitalization for heart failure, intravenous inotropes, mechanical support, or death. Predictors of disease progression were identified using …


New Oral Anticoagulants Are Not Superior To Warfarin In Secondary Prevention Of Stroke Or Transient Ischemic Attacks, But Lower The Risk Of Intracranial Bleeding: Insights From A Meta-Analysis And Indirect Treatment Comparisons, Partha Sardar, Saurav Chatterjee, Wen-Chih Wu, Edgar Lichstein, Joydeep Ghosh, Shamik Aikat, Debabrata Mukherjee Oct 2013

New Oral Anticoagulants Are Not Superior To Warfarin In Secondary Prevention Of Stroke Or Transient Ischemic Attacks, But Lower The Risk Of Intracranial Bleeding: Insights From A Meta-Analysis And Indirect Treatment Comparisons, Partha Sardar, Saurav Chatterjee, Wen-Chih Wu, Edgar Lichstein, Joydeep Ghosh, Shamik Aikat, Debabrata Mukherjee

Internal Medicine Faculty Publications

PURPOSE: Patients with Atrial Fibrillation (AF) and prior stroke are classified as high risk in all risk stratification schemes. A systematic review and meta-analysis was performed to compare the efficacy and safety of New Oral Anticoagulants (NOACs) to warfarin in patients with AF and previous stroke or transient ischemic attack (TIA).

METHODS: Three randomized controlled trials (RCTs), including total 14527 patients, comparing NOACs (apixaban, dabigatran and rivaroxaban) with warfarin were included in the analysis. Primary efficacy endpoint was ischemic stroke, and primary safety endpoint was intracranial bleeding. Random-effects models were used to pool efficacy and safety data across RCTs. RevMan …


Predictors Of Perioperative Blood Loss In Total Joint Arthroplasty., Jai Hyung Park, Mohammad R Rasouli, S M Javad Mortazavi, Anthony T Tokarski, Mitchell G Maltenfort, Javad Parvizi Oct 2013

Predictors Of Perioperative Blood Loss In Total Joint Arthroplasty., Jai Hyung Park, Mohammad R Rasouli, S M Javad Mortazavi, Anthony T Tokarski, Mitchell G Maltenfort, Javad Parvizi

Rothman Institute Papers

UNLABELLED: UPDATE The print version of this article has errors that have been corrected in the online version of this article. In the Materials and Methods section, the sentence that reads as "During the study period, our institution offered preoperative autologous blood donation to all patients who were scheduling for total joint arthroplasty with a hemoglobin level of no less than 11 mg/dL or a hematocrit level of at least 33%." in the print version now reads as "During the study period, our institution offered preoperative autologous blood donation to all patients who were scheduling for total joint arthroplasty with …


Recommendations For High-Priority Research On Cancer-Related Fatigue In Children And Adults., Andrea M. Barsevick, Michael R. Irwin, Pamela Hinds, Andrew Miller, Ann Berger, Paul Jacobsen, Sonia Ancoli-Israel, Bryce B Reeve, Karen Mustian, Ann O'Mara, Jin-Shei Lai, Michael Fisch, David Cella Oct 2013

Recommendations For High-Priority Research On Cancer-Related Fatigue In Children And Adults., Andrea M. Barsevick, Michael R. Irwin, Pamela Hinds, Andrew Miller, Ann Berger, Paul Jacobsen, Sonia Ancoli-Israel, Bryce B Reeve, Karen Mustian, Ann O'Mara, Jin-Shei Lai, Michael Fisch, David Cella

Department of Medical Oncology Faculty Papers

Over the past decades, some scientific progress has been made in understanding and treating cancer-related fatigue (CRF). However, three major problems have limited further progress: lack of agreement about measurement, inadequate understanding of the underlying biology, and problems in the conduct of clinical trials for CRF. This commentary reports the recommendations of a National Cancer Institute Clinical Trials Planning Meeting and an ongoing National Cancer Institute working group to address these problems so that high-priority research and clinical trials can be conducted to advance the science of CRF and its treatment. Recommendations to address measurement issues included revising the current …


Randomized Clinical Trial Examining Duration Of Voucher-Based Reinforcement Therapy For Cocaine Abstinence., Kimberly C Kirby, Carolyn M Carpenedo, Karen L Dugosh, Beth J Rosenwasser, Lois A Benishek, Alicia Janik, Rachel Keashen, Elena Bresani, Kenneth Silverman Oct 2013

Randomized Clinical Trial Examining Duration Of Voucher-Based Reinforcement Therapy For Cocaine Abstinence., Kimberly C Kirby, Carolyn M Carpenedo, Karen L Dugosh, Beth J Rosenwasser, Lois A Benishek, Alicia Janik, Rachel Keashen, Elena Bresani, Kenneth Silverman

College of Science & Mathematics Departmental Research

BACKGROUND: This is the first study to systematically manipulate duration of voucher-based reinforcement therapy (VBRT) to see if extending the duration increases abstinence during and following VBRT.

METHODS: We randomized cocaine-dependent methadone-maintained adults to Standard (12 weeks; n=62) or Extended (36 weeks; n=68) VBRT and provided escalating voucher amounts contingent upon urinalysis verification of cocaine abstinence. Urinalysis was scheduled at least every 2 weeks during the 48-week study and more frequently during VBRT (3/week) and 12 weeks of Aftercare (2/week).

RESULTS: Extended VBRT produced longer durations of continuous cocaine abstinence during weeks 1-24 (5.7 vs 2.7 weeks; p=0.003) and proportionally …


Diabetes And Prostate Cancer Screening In Black And White Men, Maureen Sanderson, Jay H. Fowke, Loren Lipworth, Xijing Han, Flora Ukoli, Ann L. Coker, William J. Blot, Margaret K. Hargreaves Oct 2013

Diabetes And Prostate Cancer Screening In Black And White Men, Maureen Sanderson, Jay H. Fowke, Loren Lipworth, Xijing Han, Flora Ukoli, Ann L. Coker, William J. Blot, Margaret K. Hargreaves

CRVAW Faculty Journal Articles

PURPOSE: Prior studies conducted primarily among white men find a reduced risk of prostate cancer associated with time since developing diabetes. While biologic explanations are plausible, the association may in part arise from more frequent prostate cancer screening among those with a diabetes diagnosis. The purpose of the present study was to investigate the association between diabetes and prostate cancer screening.

METHODS: We examined differences in prostate cancer screening (prostate-specific antigen and/or digital rectal examination) testing practices after a diabetes diagnosis among lower-income persons living in the southeastern United States and enrolled in the Southern Community Cohort Study between 2002 …


Long-Term Outcomes Of Ranibizumab Therapy For Diabetic Macular Edema: The 36-Month Results From Two Phase Iii Trials: Rise And Ride., David M. Brown, Quan Dong Nguyen, Dennis M. Marcus, David S. Boyer, Sunil Patel, Leonard Feiner, Patricio G. Schlottmann, Amy Chen Rundle, Jiameng Zhang, Roman G. Rubio, Anthony P. Adamis, Jason S. Ehrlich, J. Jill Hopkins Oct 2013

Long-Term Outcomes Of Ranibizumab Therapy For Diabetic Macular Edema: The 36-Month Results From Two Phase Iii Trials: Rise And Ride., David M. Brown, Quan Dong Nguyen, Dennis M. Marcus, David S. Boyer, Sunil Patel, Leonard Feiner, Patricio G. Schlottmann, Amy Chen Rundle, Jiameng Zhang, Roman G. Rubio, Anthony P. Adamis, Jason S. Ehrlich, J. Jill Hopkins

Journal Articles: Ophthalmology

PURPOSE: To report 36-month outcomes of RIDE (NCT00473382) and RISE (NCT00473330), trials of ranibizumab in diabetic macular edema (DME).

DESIGN: Phase III, randomized, multicenter, double-masked, 3-year trials, sham injection-controlled for 2 years.

PARTICIPANTS: Adults with DME (n=759), baseline best-corrected visual acuity (BCVA) 20/40 to 20/320 Snellen equivalent, and central foveal thickness (CFT) ≥ 275 μm on optical coherence tomography.

METHODS: Patients were randomized equally (1 eye per patient) to monthly 0.5 mg or 0.3 mg ranibizumab or sham injection. In the third year, sham patients, while still masked, were eligible to cross over to monthly 0.5 mg ranibizumab. Macular laser …


A Population-Based Case–Control Study Of Urinary Arsenic Species And Squamous Cell Carcinoma In New Hampshire, Usa, Diane Gilbert-Diamond, Zhigang Li, Ann E. Perry, Steven K. Spencer, A Jay Gandolfi, Margaret R. Karagas Oct 2013

A Population-Based Case–Control Study Of Urinary Arsenic Species And Squamous Cell Carcinoma In New Hampshire, Usa, Diane Gilbert-Diamond, Zhigang Li, Ann E. Perry, Steven K. Spencer, A Jay Gandolfi, Margaret R. Karagas

Dartmouth Scholarship

Background: Chronic high arsenic exposure is associated with squamous cell carcinoma (SCC) of the skin, and inorganic arsenic (iAs) metabolites may play an important role in this association. However, little is known about the carcinogenicity of arsenic at levels commonly observed in the United States.

Objective: We estimated associations between total urinary arsenic and arsenic species and SCC in a U.S. population.

Methods: We conducted a population-based case–control SCC study (470 cases, 447 controls) in a U.S. region with moderate arsenic exposure through private well water and diet. We measured urinary iAs, monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA), and …


Generating Hypotheses About Care Needs Of High Utilizers: Lessons From Patient Interviews., Dawn B Mautner, Hauchie Pang, Jeffrey C Brenner, Judy A Shea, Kennen S Gross, Rosemary Frasso, Carolyn C Cannuscio Oct 2013

Generating Hypotheses About Care Needs Of High Utilizers: Lessons From Patient Interviews., Dawn B Mautner, Hauchie Pang, Jeffrey C Brenner, Judy A Shea, Kennen S Gross, Rosemary Frasso, Carolyn C Cannuscio

Department of Family & Community Medicine Faculty Papers

Informed by a largely secondary and quantitative literature, efforts to improve care and outcomes for complex patients with high levels of emergency and hospital-based health care utilization have offered mixed results. This qualitative study identifies psychosocial factors and life experiences described by these patients that may be important to their care needs. Semi-structured interviews were conducted with 19 patients of the Camden Coalition of Healthcare Providers' Care Management Team. Investigators coded transcripts using a priori and inductively-derived codes, then identified 3 key themes: (1) Early-life instability and traumas, including parental loss, unstable or violent relationships, and transiency, informed many participants' …


Outdated Dermatologic Drug Samples And Obligations To The Patient., Jordan Wang, Matthew Keller Oct 2013

Outdated Dermatologic Drug Samples And Obligations To The Patient., Jordan Wang, Matthew Keller

Department of Dermatology and Cutaneous Biology Faculty Papers

CASE SCENARIO

A 37-year-old man with a slightly raised, red, scaly patch on his left arm is seen in the clinic of an academic teaching hospital by a young dermatologist. Following examination and biopsy, he is found to have squamous cell carcinoma in situ. The patient was recently laid off from work and had lost access to his health insurance. He is struggling to make ends meet for his family, so it would be difficult for him to cover any extraneous health-related expenses. Upon relaying this information to the dermatologist, the patient is provided with a full course of 5-fluorouracil …


Factors Impacting Echocardiographic Imaging After The Fontan Procedure: A Report From The Pediatric Heart Network Fontan Cross-Sectional Study., Richard V. Williams, Renee Margossian, Minmin Lu, Andrew M. Atz, Timothy J. Bradley, Michael Jay Campbell, Steven D. Colan, Dianne Gallagher, Wyman W. Lai, Gail D. Pearson, Ashwin Prakash, Girish S. Shirali, Meryl S. Cohen, Pediatric Heart Network Investigators Oct 2013

Factors Impacting Echocardiographic Imaging After The Fontan Procedure: A Report From The Pediatric Heart Network Fontan Cross-Sectional Study., Richard V. Williams, Renee Margossian, Minmin Lu, Andrew M. Atz, Timothy J. Bradley, Michael Jay Campbell, Steven D. Colan, Dianne Gallagher, Wyman W. Lai, Gail D. Pearson, Ashwin Prakash, Girish S. Shirali, Meryl S. Cohen, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

Echocardiographic image quality in Fontan survivors may be limited by a variety of factors. We sought to describe echocardiographic quality and factors associated with study quality in subjects participating in the Pediatric Heart Network Fontan Cross-Sectional Study. Echocardiograms were obtained at 7 clinical sites using a standard protocol. Quality grading and analysis were performed by a core laboratory. Univariate and multivariable modeling were performed to assess factors associated with quality and ability to obtain images sufficient for prespecified quantitative analysis. A total of 543 echocardiograms were obtained. The quality of echocardiograms improved over the duration of the study. The great …


Thioredoxin Reductase Was Nitrated In The Aging Heart After Myocardial Ischemia/Reperfusion., Ke Wang, Jie Zhang, Xiaoliang Wang, Xin Liu, Lin Zuo, Kehua Bai, Jianyu Shang, Lu Ma, Teng Liu, Li Wang, Wen Wang, Xin-Liang Ma, Huirong Liu Oct 2013

Thioredoxin Reductase Was Nitrated In The Aging Heart After Myocardial Ischemia/Reperfusion., Ke Wang, Jie Zhang, Xiaoliang Wang, Xin Liu, Lin Zuo, Kehua Bai, Jianyu Shang, Lu Ma, Teng Liu, Li Wang, Wen Wang, Xin-Liang Ma, Huirong Liu

Department of Emergency Medicine Faculty Papers

The age-related loss of anti-oxidant defense reduces recovery from myocardial ischemia/reperfusion injury (MI/R) in aged people. Our previous data showed that inactivation of thioredoxin (Trx) was involved in enhanced aging MI/R injury. Thioredoxin reductase (TrxR), the enzyme known to regulate Trx, is less efficient with age. The aim of the current study was to determine why TrxR activity was reduced and whether reduced TrxR activity contributed to enhanced aging MI/R injury. Both Trx and TrxR activity were decreased in the aging heart, and this difference was further amplified after MI/R. However, MI/R injury did not change TrxR expression between young …


Analyzing The Health Care Cost Curve: A Case Study., Robert D. Lieberthal Oct 2013

Analyzing The Health Care Cost Curve: A Case Study., Robert D. Lieberthal

College of Population Health Faculty Papers

This case study uses data from a self-insured employer plan to perform an analysis into the properties of the health care cost curve. The analysis shows that one statistical property of the health care cost curve is that costs rise continuously, not on an annual or monthly basis. Graphical analysis indicates that managed care techniques used to restrain costs can also smooth utilization, producing the continuously growing cost curve observed. The analysis further illustrates that there is no one "cost curve"-analysis must be segmented by population. Finally, the power of predictive models to fit the cost curve varies by population. …


The Flexible Fairness: Equality, Earned Entitlement, And Self-Interest, Chunliang Feng, Yi Luo, Ruolei Gu, Lucas S. Broster, Xueyi Shen, Tengxiang Tian, Yue-Jia Luo, Frank Krueger Sep 2013

The Flexible Fairness: Equality, Earned Entitlement, And Self-Interest, Chunliang Feng, Yi Luo, Ruolei Gu, Lucas S. Broster, Xueyi Shen, Tengxiang Tian, Yue-Jia Luo, Frank Krueger

Behavioral Science Faculty Publications

The current study explored whether earned entitlement modulated the perception of fairness in three experiments. A preliminary resource earning task was added before players decided how to allocate the resource they jointly earned. Participants' decision in allocation, their responses to equal or unequal offers, whether advantageous or disadvantageous, and subjective ratings of fairness were all assessed in the current study. Behavioral results revealed that participants proposed more generous offers and showed enhanced tolerance to disadvantageous unequal offers from others when they performed worse than their presumed "partners," while the reverse was true in the better-performance condition. The subjective ratings also …


Patterning In Placental 11-B Hydroxysteroid Dehydrogenase Methylation According To Prenatal Socioeconomic Adversity, Allison A. Appleton, David A. Armstrong, Corina Lesseur, Joyce Lee, James F. Padbury, Barry M. Lester Sep 2013

Patterning In Placental 11-B Hydroxysteroid Dehydrogenase Methylation According To Prenatal Socioeconomic Adversity, Allison A. Appleton, David A. Armstrong, Corina Lesseur, Joyce Lee, James F. Padbury, Barry M. Lester

Dartmouth Scholarship

Background:

Prenatal socioeconomic adversity as an intrauterine exposure is associated with a range of perinatal outcomes although the explanatory mechanisms are not well understood. The development of the fetus can be shaped by the intrauterine environment through alterations in the function of the placenta. In the placenta, the HSD11B2 gene encodes the 11-beta hydroxysteroid dehydrogenase enzyme, which is responsible for the inactivation of maternal cortisol thereby protecting the developing fetus from this exposure. This gene is regulated by DNA methylation, and this methylation and the expression it controls has been shown to be susceptible to a variety of stressors from …


Patients With Atrial Fibrillation Undergoing Total Joint Arthroplasty Increase Hospital Burden., Vinay K Aggarwal, Eric H Tischler, Zachary D Post, Ian Kane, Fabio R Orozco, Alvin Ong Sep 2013

Patients With Atrial Fibrillation Undergoing Total Joint Arthroplasty Increase Hospital Burden., Vinay K Aggarwal, Eric H Tischler, Zachary D Post, Ian Kane, Fabio R Orozco, Alvin Ong

Rothman Institute Papers

BACKGROUND: More than 3 million people in the United States have atrial fibrillation, most of whom are being managed with anticoagulation therapy for life. The goal of the present study was to examine the effect of chronic anticoagulation therapy on patients with atrial fibrillation who undergo total joint arthroplasty.

METHODS: We retrospectively reviewed all patients undergoing aseptic primary or revision total joint arthroplasty at our facility from March 2007 to August 2011. One hundred and sixty-one patients with atrial fibrillation (Group A) were compared with 161 matched controls (Group B). A total of 112 hips and 210 knees underwent 239 …


The Effect Of Malnutrition On Patients Undergoing Elective Joint Arthroplasty., Ronald Huang, Md, Max Greenky, Bs, Glenn J. Kerr, Md, Mathew S. Austin, Md, Javad Parvizi, Md, Frcs Sep 2013

The Effect Of Malnutrition On Patients Undergoing Elective Joint Arthroplasty., Ronald Huang, Md, Max Greenky, Bs, Glenn J. Kerr, Md, Mathew S. Austin, Md, Javad Parvizi, Md, Frcs

Rothman Institute Papers

Malnutrition has been linked to serious complications in patients undergoing elective total joint arthroplasty (TJA). This study prospectively evaluated 2,161 patients undergoing elective TJA for malnutrition as defined by either an abnormal serum albumin or transferrin. The overall incidence of malnutrition was 8.5% (184 of 2,161) and the rate of overall complications in the malnourished group was 12% as compared to 2.9% in patients with normal parameters (P55years-old undergoing TJA and is associated with a significant increase in post-operative complications.


Occupational Exposure To Hepatitis C Virus: Early T-Cell Responses In The Absence Of Seroconversion In A Longitudinal Cohort Study., Theo Heller, Jens Martin Werner, Fareed Rahman, Eishiro Mizukoshi, Yuji Sobao, Ann Marie Gordon, Arlene Sheets, Averell H. Sherker, Ellen Kessler, Kathleen S. Bean, Steven K. Herrine, M'Lou Stevens, James Schmitt, Barbara Rehermann Sep 2013

Occupational Exposure To Hepatitis C Virus: Early T-Cell Responses In The Absence Of Seroconversion In A Longitudinal Cohort Study., Theo Heller, Jens Martin Werner, Fareed Rahman, Eishiro Mizukoshi, Yuji Sobao, Ann Marie Gordon, Arlene Sheets, Averell H. Sherker, Ellen Kessler, Kathleen S. Bean, Steven K. Herrine, M'Lou Stevens, James Schmitt, Barbara Rehermann

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: T-cell responses have been described in seronegative patients who test negative for hepatitis C virus (HCV) RNA despite frequent HCV exposure. However, the cross-sectional design of those studies did not clarify whether T cells were indeed induced by low-level HCV exposure without seroconversion or whether they resulted from regular acute infection with subsequent antibody loss.

METHODS: Over a 10-year period, our longitudinal study recruited 72 healthcare workers with documented HCV exposure. We studied viremia and antibody and T-cell responses longitudinally for 6 months.

RESULTS: All healthcare workers remained negative for HCV RNA and antibodies. However, 48% developed proliferative T-cell …


Equivalence Of Students' Scores On Timed And Untimed Anatomy Practical Examinations., Guiyan Zhang, Bruce Fenderson, Richard R Schmidt, J J. Veloski Sep 2013

Equivalence Of Students' Scores On Timed And Untimed Anatomy Practical Examinations., Guiyan Zhang, Bruce Fenderson, Richard R Schmidt, J J. Veloski

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Untimed examinations are popular with students because there is a perception that first impressions may be incorrect, and that difficult questions require more time for reflection. In this report, we tested the hypothesis that timed anatomy practical examinations are inherently more difficult than untimed examinations. Students in the Doctor of Physical Therapy program at Thomas Jefferson University were assessed on their understanding of anatomic relationships using multiple-choice questions. For the class of 2012 (n = 46), students were allowed to circulate freely among 40 testing stations during the 40-minute testing session. For the class of 2013 (n = 46), students …


Sessile Serrated Adenomas In The Proximal Colon Are Likely To Be Flat, Large And Occur In Smokers, Tarun Rustagi, Priya Rangasamy, Matthew Myers, Melinda Sanders, Haleh Vaziri, George Y. Wu, John W. Birk, Petr Protiva, Joseph C. Anderson Aug 2013

Sessile Serrated Adenomas In The Proximal Colon Are Likely To Be Flat, Large And Occur In Smokers, Tarun Rustagi, Priya Rangasamy, Matthew Myers, Melinda Sanders, Haleh Vaziri, George Y. Wu, John W. Birk, Petr Protiva, Joseph C. Anderson

Dartmouth Scholarship

Aim: To examine the epidemiology and the morphology of the proximal sessile serrated adenomas (SSAs).

Methods: We conducted a retrospective study to identify patients with SSAs using a university-based hospital pathology database query from January 2007 to April 2011. Data collected included: age, gender, ethnicity, body mass index, diabetes, smoking, family history of colorectal cancer, aspirin, and statin use. We collected data on morphology of SSAs including site (proximal or distal), size, and endoscopic appearance (flat or protuberant). We also compared proximal SSAs to proximal tubular adenomas detected during same time period.


Bioengineered Lysozyme Reduces Bacterial Burden And Inflammation In A Murine Model Of Mucoid Pseudomonas Aeruginosa Lung Infection, Charlotte C. Teneback, Thomas C. Scanlon, Matthew J. Wargo, Jenna L. Bement, Karl E. Griswold, Laurie W. Leclair Aug 2013

Bioengineered Lysozyme Reduces Bacterial Burden And Inflammation In A Murine Model Of Mucoid Pseudomonas Aeruginosa Lung Infection, Charlotte C. Teneback, Thomas C. Scanlon, Matthew J. Wargo, Jenna L. Bement, Karl E. Griswold, Laurie W. Leclair

Dartmouth Scholarship

The spread of drug-resistant bacterial pathogens is a growing global concern and has prompted an effort to explore potential adjuvant and alternative therapies derived from nature's repertoire of bactericidal proteins and peptides. In humans, the airway surface liquid layer is a rich source of antibiotics, and lysozyme represents one of the most abundant and effective antimicrobial components of airway secretions. Human lysozyme is active against both Gram-positive and Gram-negative bacteria, ac


Cardiac Fibroblast-Dependent Extracellular Matrix Accumulation Is Associated With Diastolic Stiffness In Type 2 Diabetes., Kirk R. Hutchinson, C. Kevin Lord, T. Aaron West, James A. Stewart Aug 2013

Cardiac Fibroblast-Dependent Extracellular Matrix Accumulation Is Associated With Diastolic Stiffness In Type 2 Diabetes., Kirk R. Hutchinson, C. Kevin Lord, T. Aaron West, James A. Stewart

CAS Publications

Cardiovascular complications are a leading cause of death in patients with type 2 diabetes mellitus (T2DM). Diastolic dysfunction is one of the earliest manifestations of diabetes-induced changes in left ventricular (LV) function, and results from a reduced rate of relaxation and increased stiffness. The mechanisms responsible for increased stiffness are not completely understood. Chronic hyperglycemia, advanced glycation endproducts (AGEs), and increased levels of proinflammatory and profibrotic cytokines are molecular pathways known to be involved in regulating extracellular matrix (ECM) synthesis and accumulation resulting in increased LV diastolic stiffness. Experiments were conducted using a genetically-induced mouse model of T2DM generated by …


Spinal Anesthesia: Should Everyone Receive A Urinary Catheter?: A Randomized, Prospective Study Of Patients Undergoing Total Hip Arthroplasty., Adam G Miller, James Mckenzie, Max Greenky, Erica Shaw, Kishor Gandhi, William J Hozack, Javad Parvizi Aug 2013

Spinal Anesthesia: Should Everyone Receive A Urinary Catheter?: A Randomized, Prospective Study Of Patients Undergoing Total Hip Arthroplasty., Adam G Miller, James Mckenzie, Max Greenky, Erica Shaw, Kishor Gandhi, William J Hozack, Javad Parvizi

Rothman Institute Papers

BACKGROUND: The objective of this randomized prospective study was to determine whether a urinary catheter is necessary for all patients undergoing total hip arthroplasty under spinal anesthesia.

METHODS: Consecutive patients undergoing total hip arthroplasty under spinal anesthesia were randomized to treatment with or without insertion of an indwelling urinary catheter. All patients received spinal anesthesia with 15 to 30 mg of 0.5% bupivacaine. The catheter group was subjected to a standard postoperative protocol, with removal of the indwelling catheter within forty-eight hours postoperatively. The experimental group was monitored for urinary retention and, if necessary, had straight catheterization up to two …


Spinal Anesthesia: Should Everyone Receive A Urinary Catheter?: A Randomized, Prospective Study Of Patients Undergoing Total Hip Arthroplasty., Adam G Miller, Md, James Mckenzie, Bs, Max Greenky, Ba, Erica Shaw, Rnp, Kishor Gandhi, Md, William J Hozack, Md, Javad Parvizi, Md, Frcs Aug 2013

Spinal Anesthesia: Should Everyone Receive A Urinary Catheter?: A Randomized, Prospective Study Of Patients Undergoing Total Hip Arthroplasty., Adam G Miller, Md, James Mckenzie, Bs, Max Greenky, Ba, Erica Shaw, Rnp, Kishor Gandhi, Md, William J Hozack, Md, Javad Parvizi, Md, Frcs

Rothman Institute Papers

BACKGROUND: The objective of this randomized prospective study was to determine whether a urinary catheter is necessary for all patients undergoing total hip arthroplasty under spinal anesthesia.

METHODS: Consecutive patients undergoing total hip arthroplasty under spinal anesthesia were randomized to treatment with or without insertion of an indwelling urinary catheter. All patients received spinal anesthesia with 15 to 30 mg of 0.5% bupivacaine. The catheter group was subjected to a standard postoperative protocol, with removal of the indwelling catheter within forty-eight hours postoperatively. The experimental group was monitored for urinary retention and, if necessary, had straight catheterization up to two …