Open Access. Powered by Scholars. Published by Universities.®

Cardiology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Humans

Discipline
Institution
Publication Year
Publication
Publication Type

Articles 901 - 930 of 936

Full-Text Articles in Cardiology

Partial And Transitional Atrioventricular Septal Defect Outcomes., L Luann Minich, Andrew M. Atz, Steven D. Colan, Lynn A. Sleeper, Seema Mital, James Jaggers, Renee Margossian, Ashwin Prakash, Jennifer S. Li, Meryl S. Cohen, Ronald V. Lacro, Gloria L. Klein, John A. Hawkins, Pediatric Heart Network Investigators, Girish S. Shirali Feb 2010

Partial And Transitional Atrioventricular Septal Defect Outcomes., L Luann Minich, Andrew M. Atz, Steven D. Colan, Lynn A. Sleeper, Seema Mital, James Jaggers, Renee Margossian, Ashwin Prakash, Jennifer S. Li, Meryl S. Cohen, Ronald V. Lacro, Gloria L. Klein, John A. Hawkins, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Surgical and perioperative improvements permit earlier repair of partial and transitional atrioventricular septal defects (AVSD). We sought to describe contemporary outcomes in a multicenter cohort.

METHODS: We studied 87 patients undergoing primary biventricular repair of partial or transitional AVSD between June 2004 and February 2006 across seven North American centers. One-month and 6-month postoperative data included weight-for-age z-scores, left atrioventricular valve regurgitation (LAVVR) grade, residual shunts, and left ventricular ejection fraction. Paired methods were used to assess 6-month change.

RESULTS: Median age at surgery was 1.8 years; median weight z-score was -0.88. Median days for ventilation were 1, intensive …


Diverticular And Aneurysmal Structures Of The Left Ventricle In Adults: Report Of A Case Within The Context Of A Literature Review., Premraj Makkuni, Morris N Kotler, Vincent M. Figueredo Jan 2010

Diverticular And Aneurysmal Structures Of The Left Ventricle In Adults: Report Of A Case Within The Context Of A Literature Review., Premraj Makkuni, Morris N Kotler, Vincent M. Figueredo

Department of Medical Genetics Faculty Papers

Left ventricular outpouchings are increasingly detected on cardiovascular imaging. Herein, we describe the case of a 45-year-old man who underwent noncardiac preoperative imaging and was found to have an asymptomatic left ventricular outpouching. The patient underwent successful surgical repair of the structure. When left ventricular outpouchings are detected, the main differential diagnoses are pseudoaneurysm, aneurysm, and diverticulum. The outcomes for these conditions differ substantially, and accurate diagnosis can be crucial in making clinical decisions. We review the relevant medical literature, outline the natural history of these left ventricular abnormalities, and discuss options in regard to their management.


Embolic Complication Of Tako-Tsubo Cardiomyopathy., Vincent M. Figueredo, S Gupta Nov 2009

Embolic Complication Of Tako-Tsubo Cardiomyopathy., Vincent M. Figueredo, S Gupta

Department of Medical Genetics Faculty Papers

No abstract provided.


Parent- Versus Child-Reported Functional Health Status After The Fontan Procedure., Linda M. Lambert, L Luann Minich, Jane W. Newburger, Minmin Lu, Victoria L. Pemberton, Ellen A. Mcgrath, Andrew M. Atz, Mingfen Xu, Elizabeth Radojewski, Darlene Servedio, Brian W. Mccrindle, Pediatric Heart Network Investigators, Girish S. Shirali Nov 2009

Parent- Versus Child-Reported Functional Health Status After The Fontan Procedure., Linda M. Lambert, L Luann Minich, Jane W. Newburger, Minmin Lu, Victoria L. Pemberton, Ellen A. Mcgrath, Andrew M. Atz, Mingfen Xu, Elizabeth Radojewski, Darlene Servedio, Brian W. Mccrindle, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: We sought to compare perceptions of functional health status between children who had undergone a Fontan procedure and their parents.

METHODS: Fontan procedure survivors 10 to 18 years of age were included in the study if the child completed the Child Health Questionnaire (CHQ) and the parent completed the parent form to assess the child's functional health status. Comparisons were made between raw domain scores for the parent- and child-completed CHQs.

RESULTS: Between March 2003 and April 2004, 1078 Fontan survivors were screened. Of the 546 eligible and consented patients, 354 were 10-18 years of age and 328 parent/child …


Chromosomal Anomalies Influence Parental Treatment Decisions In Relation To Prenatally Diagnosed Congenital Heart Disease., Sinai C. Zyblewski, Elizabeth G. Hill, Girish S. Shirali, Andrew Atz, Geoffrey Forbus, Javier Gonzalez, Anthony Hlavacek Nov 2009

Chromosomal Anomalies Influence Parental Treatment Decisions In Relation To Prenatally Diagnosed Congenital Heart Disease., Sinai C. Zyblewski, Elizabeth G. Hill, Girish S. Shirali, Andrew Atz, Geoffrey Forbus, Javier Gonzalez, Anthony Hlavacek

Manuscripts, Articles, Book Chapters and Other Papers

This study aimed to identify the variables that influence parental treatment decisions after a prenatal diagnosis of congenital heart disease (CHD). The authors reviewed all cases of prenatally diagnosed structural CHD from August 1998 to December 2006 at their center. The following variables were studied as potential predictors of parental intent to treat: maternal age, race, insurance status, obstetric history, fetal gender, univentricular versus biventricular cardiac physiology, and fetal chromosomal abnormality. Uni- and multivariable logistic regression analyses were performed. In the review, 252 consecutive cases of prenatally diagnosed CHD were identified. Of these, 204 women pursued full medical treatment, whereas …


Dronedarone., Chinmay Patel, Gan-Xin Yan, Peter R Kowey Aug 2009

Dronedarone., Chinmay Patel, Gan-Xin Yan, Peter R Kowey

Department of Medical Genetics Faculty Papers

Amiodarone is the most effective antiarrhythmic drug for maintaining sinus rhythm for patients with atrial fibrillation. Extra-cardiac side effects have been a limiting factor, especially during chronic use, and may offset its benefits. Dronedarone is a noniodinated benzofuran derivative of amiodarone that has been developed for the treatment of atrial fibrillation and atrial flutter. Similar to amiodarone, dronedarone is a potent blocker of multiple ion currents, including the rapidly activating delayed-rectifier potassium current, the slowly activating delayed-rectifier potassium current, the inward rectifier potassium current, the acetylcholine activated potassium current, peak sodium current, and L-type calcium current, and exhibits antiadrenergic effects. …


Comparison Of Echocardiographic And Cardiac Magnetic Resonance Imaging Measurements Of Functional Single Ventricular Volumes, Mass, And Ejection Fraction (From The Pediatric Heart Network Fontan Cross-Sectional Study)., Renee Margossian, Marcy L. Schwartz, Ashwin Prakash, Lisa Wruck, Steven D. Colan, Andrew M. Atz, Timothy J. Bradley, Mark A. Fogel, Lynne M. Hurwitz, Edward Marcus, Andrew J. Powell, Beth F. Printz, Michael D. Puchalski, Jack Rychik, Girish S. Shirali, Richard Williams, Shi-Joon Yoo, Tal Geva, Pediatric Heart Network Investigators Aug 2009

Comparison Of Echocardiographic And Cardiac Magnetic Resonance Imaging Measurements Of Functional Single Ventricular Volumes, Mass, And Ejection Fraction (From The Pediatric Heart Network Fontan Cross-Sectional Study)., Renee Margossian, Marcy L. Schwartz, Ashwin Prakash, Lisa Wruck, Steven D. Colan, Andrew M. Atz, Timothy J. Bradley, Mark A. Fogel, Lynne M. Hurwitz, Edward Marcus, Andrew J. Powell, Beth F. Printz, Michael D. Puchalski, Jack Rychik, Girish S. Shirali, Richard Williams, Shi-Joon Yoo, Tal Geva, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

Assessment of the size and function of a functional single ventricle (FSV) is a key element in the management of patients after the Fontan procedure. Measurement variability of ventricular mass, volume, and ejection fraction (EF) among observers by echocardiography and cardiac magnetic resonance imaging (CMR) and their reproducibility among readers in these patients have not been described. From the 546 patients enrolled in the Pediatric Heart Network Fontan Cross-Sectional Study (mean age 11.9 +/- 3.4 years), 100 echocardiograms and 50 CMR studies were assessed for measurement reproducibility; 124 subjects with paired studies were selected for comparison between modalities. Interobserver agreement …


Functional State Following The Fontan Procedure., Ismee A. Williams, Lynn A. Sleeper, Steven D. Colan, Minmin Lu, Elizabeth A. Stephenson, Jane W. Newburger, Welton M. Gersony, Meryl S. Cohen, James F. Cnota, Andrew M. Atz, Richard V. Williams, Renee Margossian, Andrew J. Powell, Mario P. Stylianou, Daphne T. Hsu, Pediatric Heart Network Investigators, Girish S. Shirali Aug 2009

Functional State Following The Fontan Procedure., Ismee A. Williams, Lynn A. Sleeper, Steven D. Colan, Minmin Lu, Elizabeth A. Stephenson, Jane W. Newburger, Welton M. Gersony, Meryl S. Cohen, James F. Cnota, Andrew M. Atz, Richard V. Williams, Renee Margossian, Andrew J. Powell, Mario P. Stylianou, Daphne T. Hsu, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Despite improvements in outcomes after completion of the Fontan circulation, long-term functional state varies. We sought to identify pre- and postoperative characteristics associated with overall function.

METHODS AND RESULTS: We analyzed data from 476 survivors with the Fontan circulation enrolled in the Pediatric Heart Network Fontan Cross-sectional Study. Mean age at creation of the Fontan circulation was 3.4 plus or minus 2.1 years, with a range from 0.7 to 17.5 years, and time since completion was 8.7 plus or minus 3.4 years, the range being from 1.1 to 17.3 years. We calculated a functional score for the survivors by …


The Time Has Come For Physicians To Take Notice: The Impact Of Psychosocial Stressors On The Heart., Vincent M. Figueredo, M.D. Aug 2009

The Time Has Come For Physicians To Take Notice: The Impact Of Psychosocial Stressors On The Heart., Vincent M. Figueredo, M.D.

Division of Cardiology Faculty Papers

A rapidly growing body of evidence supports a relationship between psychosocial factors and cardiovascular disease. In this article, a review of the epidemiologic and clinical research investigating this relationship concludes that psychosocial stressors can be both a cause and a consequence of cardiovascular disease events. Furthermore, recent data have shown that stress management might reduce future cardiac events in patients with cardiovascular disease. Unfortunately, the influence of psychosocial risk factors on cardiovascular disease remains underrecognized compared with traditional cardiac risk factors. Physicians and their associates should screen for psychosocial stressors and recognize potential symptoms. Consideration should be given to developing …


Primary Cardiac Tumors., Suraj Maraj, Md, Gregg S. Pressman, Md, Vincent M. Figueredo, Md Apr 2009

Primary Cardiac Tumors., Suraj Maraj, Md, Gregg S. Pressman, Md, Vincent M. Figueredo, Md

Division of Cardiology Faculty Papers

Primary cardiac tumors are a rare entity compared to tumors that metastasize to the heart. Patients with such tumors may be asymptomatic. Many cases are found incidentally during evaluation of an unrelated medical condition. It is important for the clinician to have a high index of suspicion when evaluating a patient presenting with signs and systemic symptoms concerning possible malignancy, plus cardiac specific symptoms or complications. These can include new onset dyspnea, congestive heart failure, arrhythmias or murmurs varying with body positions. Imaging, particularly the use of echocardiography, remains the cornerstone of diagnosis, and may be combined with new imaging …


Universal Screening For Extracardiac Abnormalities In Neonates With Congenital Heart Disease., Javier H. Gonzalez, Girish S. Shirali, Andrew M. Atz, Sarah N. Taylor, Geoffrey A. Forbus, Sinai C. Zyblewski, Anthony M. Hlavacek Apr 2009

Universal Screening For Extracardiac Abnormalities In Neonates With Congenital Heart Disease., Javier H. Gonzalez, Girish S. Shirali, Andrew M. Atz, Sarah N. Taylor, Geoffrey A. Forbus, Sinai C. Zyblewski, Anthony M. Hlavacek

Manuscripts, Articles, Book Chapters and Other Papers

Extracardiac or genetic abnormalities (EGA) represent a factor in the morbidity of patients with congenital heart disease. We evaluated the way neonates with CHD are screened at our institution and determined the yield for the screening tests. We reviewed the charts of 223 neonates with structural CHD. Subjects were categorized into 6 groups: univentricular, left-sided obstructive lesions, right-sided obstructive lesions, septal defects, conotruncal defects (CTD), and other. We reviewed which patients underwent cranial ultrasonogram (CUS), abdominal ultrasonogram (AUS), and/or genetic studies (GS) as well as their results. There was a high prevalence of EGA in each group by CUS (32% …


Associated Symptoms In The Ten Days Before Diagnosis Of Kawasaki Disease., Annette L. Baker, Minmin Lu, L Luann Minich, Andrew M. Atz, Gloria L. Klein, Rosalind Korsin, Linda Lambert, Jennifer S. Li, Wilbert Mason, Elizabeth Radojewski, Victoria L. Vetter, Jane W. Newburger, Pediatric Heart Network Investigators, Girish S. Shirali Apr 2009

Associated Symptoms In The Ten Days Before Diagnosis Of Kawasaki Disease., Annette L. Baker, Minmin Lu, L Luann Minich, Andrew M. Atz, Gloria L. Klein, Rosalind Korsin, Linda Lambert, Jennifer S. Li, Wilbert Mason, Elizabeth Radojewski, Victoria L. Vetter, Jane W. Newburger, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: To describe common associated symptoms within the 10 days before diagnosis in subjects enrolled in the Pediatric Heart Network's trial of steroid therapy in Kawasaki disease (KD).

STUDY DESIGN: Patients with acute KD were enrolled between days 4 and 10 of illness at 8 centers between 2002 and 2004. We defined common associated symptoms as those occurring in >or=10% of patients. Principal clinical criteria for KD were not included in this analysis.

RESULTS: Among 198 patients, irritability was reported in 98 (50%), vomiting in 88 (44%), decreased food/fluid intake in 73 (37%), cough in 55 (28%), diarrhea in 52 …


Use Of Clopidogrel In The Reduction Of Myocardial Damage During Percutaneous Coronary Intervention, Arijit Dasgupta, Debabrata Mukherjee Mar 2009

Use Of Clopidogrel In The Reduction Of Myocardial Damage During Percutaneous Coronary Intervention, Arijit Dasgupta, Debabrata Mukherjee

Gill Heart & Vascular Institute Faculty Publications

It is estimated that approximately a quarter of patients undergoing coronary intervention may have significant post-procedural creatinine (CK)/creatinine kinase myocardial band (CK-MB) elevations and approximately half may have post-procedural troponin elevations. Current data suggest that periprocedural infarction is associated with short-, intermediate-, and long-term adverse outcomes, most notably mortality. This review examines the role of clopidogrel in decreasing periprocedural myonecrosis following percutaneous coronary intervention (PCI). Clopidogrel is an important pharmacologic agent used to reduce myocardial infarction post-coronary intervention as assessed directly by the evaluation of cardiac biomarkers and indirectly by the evaluation of short-term ischemic events. The optimal dose of …


Rationale And Design Of A Trial Of Angiotensin-Converting Enzyme Inhibition In Infants With Single Ventricle., Daphne T. Hsu, Seema Mital, Chitra Ravishankar, Renee Margossian, Jennifer S. Li, Lynn A. Sleeper, Richard V. Williams, Jami C. Levine, Brian W. Mccrindle, Andrew M. Atz, Darlene Servedio, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali Jan 2009

Rationale And Design Of A Trial Of Angiotensin-Converting Enzyme Inhibition In Infants With Single Ventricle., Daphne T. Hsu, Seema Mital, Chitra Ravishankar, Renee Margossian, Jennifer S. Li, Lynn A. Sleeper, Richard V. Williams, Jami C. Levine, Brian W. Mccrindle, Andrew M. Atz, Darlene Servedio, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Angiotensin converting enzyme (ACE) inhibitors are known to improve clinical outcome and ventricular function in adults with heart failure. Infants with single-ventricle physiology show abnormalities in ventricular function as well as poor growth. The ability of an ACE inhibitor to preserve ventricular function and improve growth in these infants is unknown.

METHODS: The Pediatric Heart Network designed a randomized, double-blind trial to compare outcomes in infants with single-ventricle physiology receiving enalapril or placebo. Neonates < or =45 days old were eligible. The primary outcome is weight-for-age Z-score at 14 months of age. Secondary outcomes include other measures of somatic growth, laboratory and functional measures of heart failure, developmental indices, measures of ventricular size and function, and the relationship of the renin-angiotensin-aldosterone system genotype to the response to enalapril. The incidence and spectrum of adverse events will also be compared between treatment groups.

RESULTS: A total of 1,245 neonates were screened and 533 (43%) were eligible. The consent rate was 43%; 230 subjects were enrolled. Parental reluctance to …


Design And Rationale Of A Randomized Trial Comparing The Blalock-Taussig And Right Ventricle-Pulmonary Artery Shunts In The Norwood Procedure., Richard G. Ohye, J William Gaynor, Nancy S. Ghanayem, Caren S. Goldberg, Peter C. Laussen, Peter C. Frommelt, Jane W. Newburger, Gail D. Pearson, Sarah Tabbutt, Gil Wernovsky, Lisa M. Wruck, Andrew M. Atz, Steve D. Colan, James Jaggers, Brian W. Mccrindle, Ashwin Prakash, Michael D. Puchalski, Lynn A. Sleeper, Mario P. Stylianou, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali Oct 2008

Design And Rationale Of A Randomized Trial Comparing The Blalock-Taussig And Right Ventricle-Pulmonary Artery Shunts In The Norwood Procedure., Richard G. Ohye, J William Gaynor, Nancy S. Ghanayem, Caren S. Goldberg, Peter C. Laussen, Peter C. Frommelt, Jane W. Newburger, Gail D. Pearson, Sarah Tabbutt, Gil Wernovsky, Lisa M. Wruck, Andrew M. Atz, Steve D. Colan, James Jaggers, Brian W. Mccrindle, Ashwin Prakash, Michael D. Puchalski, Lynn A. Sleeper, Mario P. Stylianou, Lynn Mahony, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: The initial palliative procedure for patients born with hypoplastic left heart syndrome and related single right ventricle anomalies, the Norwood procedure, remains among the highest risk procedures in congenital heart surgery. The classic Norwood procedure provides pulmonary blood flow with a modified Blalock-Taussig shunt. Improved outcomes have been reported in a few small, nonrandomized studies of a modification of the Norwood procedure that uses a right ventricle-pulmonary artery shunt to provide pulmonary blood flow. Other nonrandomized studies have shown no differences between the two techniques.

METHODS: The Pediatric Heart Network designed a randomized clinical trial to compare outcomes for …


The Dose-Response Of Nitrous Oxide In Postoperative Nausea In Patients Undergoing Gynecologic Laparoscopic Surgery: A Preliminary Study., Boris Mraovic, Tatjana Simurina, Zdenko Sonicki, Neven Skitarelic, Tong J. Gan Sep 2008

The Dose-Response Of Nitrous Oxide In Postoperative Nausea In Patients Undergoing Gynecologic Laparoscopic Surgery: A Preliminary Study., Boris Mraovic, Tatjana Simurina, Zdenko Sonicki, Neven Skitarelic, Tong J. Gan

Department of Anesthesiology Faculty Papers

BACKGROUND: Whether nitrous oxide (N(2)O) increases the incidence of postoperative nausea and vomiting (PONV) after laparoscopic gynecologic surgery is still controversial, which may be due to the administration of different concentrations of inspired N(2)O. We investigated whether N(2)O results in a dose-response increase in PONV. METHODS: Patients undergoing gynecologic laparoscopic surgery were randomized to receive 30% oxygen with air (G0, n = 46), 50% N(2)O with oxygen (G50, n = 46), or 70% N(2)O with oxygen (G70, n = 45). A standardized general anesthetic was used with no PONV prophylaxis. Known risk factors for PONV were controlled. Metoclopramide was used …


Functional Status, Heart Rate, And Rhythm Abnormalities In 521 Fontan Patients 6 To 18 Years Of Age., Andrew D. Blaufox, Lynn A. Sleeper, David J. Bradley, Roger E. Breitbart, Allan Hordof, Ronald J. Kanter, Elizabeth A. Stephenson, Mario Stylianou, Victoria L. Vetter, J Philip Saul, Pediatric Heart Network Investigators Jul 2008

Functional Status, Heart Rate, And Rhythm Abnormalities In 521 Fontan Patients 6 To 18 Years Of Age., Andrew D. Blaufox, Lynn A. Sleeper, David J. Bradley, Roger E. Breitbart, Allan Hordof, Ronald J. Kanter, Elizabeth A. Stephenson, Mario Stylianou, Victoria L. Vetter, J Philip Saul, Pediatric Heart Network Investigators

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVES: Our objective was to determine the relationship between functional outcome and abnormalities of heart rate and rhythm after the Fontan operation.

METHODS: The National Heart, Lung, and Blood Institute Pediatric Heart Network conducted a cross-sectional analysis of patients who had undergone a Fontan procedure at the 7 network centers. Analysis was based on 521 patients with an electrocardiogram (n = 509) and/or bicycle exercise test (n = 404). The Child Health Questionnaire parent report and the oxygen consumption at the anaerobic threshold were used as markers of functional outcome.

RESULTS: Various Fontan procedures had been performed: intracardiac lateral tunnel …


Lead-Associated Endocarditis: The Important Role Of Methicillin-Resistant Staphylococcus Aureus., Arnold J. Greenspon, Eugene S. Rhim, George Mark, Joseph Desimone, Reginald T. Ho May 2008

Lead-Associated Endocarditis: The Important Role Of Methicillin-Resistant Staphylococcus Aureus., Arnold J. Greenspon, Eugene S. Rhim, George Mark, Joseph Desimone, Reginald T. Ho

Division of Cardiology Faculty Papers

BACKGROUND: Infection is a potentially life-threatening complication of cardiac device implantation. Lead-associated endocarditis (LAE) may be the most serious complication since it is associated with a high mortality. METHODS: The medical records of patients referred to our institution for the treatment of LAE between 1999 and 2007 were reviewed. RESULTS: A total of 51 of 107 patients referred for device-related infections met the criteria for LAE. Of these, 19 occurred within 6 months of their most recent procedure (early), while the remaining 32 occurred more than 6 months later (mean = 31.9 months post procedure). Devices included pacemakers in 33 …


17beta-Estradiol Increases Basal But Not Bradykinin-Stimulated Release Of Active T-Pa In Young Postmenopausal Women, Mias Pretorius, Gary Van Guilder, Raul J Guzman, James M Luther, Nancy J Brown Apr 2008

17beta-Estradiol Increases Basal But Not Bradykinin-Stimulated Release Of Active T-Pa In Young Postmenopausal Women, Mias Pretorius, Gary Van Guilder, Raul J Guzman, James M Luther, Nancy J Brown

Health and Nutritional Sciences Faculty Publications

Angiotensin-converting enzyme inhibition potentiates basal and bradykinin-stimulated tissue-type plasminogen activator (t-PA) release to a greater extent in women than in men. This study tested the hypothesis that 17beta-estradiol enhances the effect of angiotensin-converting enzyme inhibition on t-PA release in young postmenopausal women. We conducted a double-blind, prospective, crossover study in 14 young postmenopausal women (mean age 48.2+/-2.3 years) who were randomized to receive 17beta-estradiol (1 mg/d) or matching placebo for 4 weeks. At the end of each treatment period, we measured the effect of intraarterial infusion of bradykinin, methacholine, and nitroprusside on forearm blood flow and net t-PA release, before …


How To Prevent Perioperative Myocardial Injury: The Conundrum Continues, Jian-Zhong Sun, David Maguire Dec 2007

How To Prevent Perioperative Myocardial Injury: The Conundrum Continues, Jian-Zhong Sun, David Maguire

Department of Anesthesiology Faculty Papers

BACKGROUND: Perioperative myocardial injury (PMI) remains a major cause of perioperative morbidity and mortality but clinical strategies to prevent PMI are still uncertain.

METHODS AND RESULTS: We comprehensively searched PubMed for major research articles concerning clinical strategies to prevent PMI. The key findings are as follows: (1) the American College of Cardiology/American Heart Association guideline update for perioperative cardiovascular evaluation for noncardiac surgery is very useful to stratify cardiac risk preoperatively; (2) cardiac troponin has emerged as a biomarker to diagnose postoperative PMI and to predict clinical outcomes; (3) coronary revascularization before noncardiac surgery probably would provide cardiac protection in …


Left Ventricular Noncompaction Mimicking Peripartum Cardiomyopathy., Chetan Patel, Girish S. Shirali, Naveen Pereira Aug 2007

Left Ventricular Noncompaction Mimicking Peripartum Cardiomyopathy., Chetan Patel, Girish S. Shirali, Naveen Pereira

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Survival After Bidirectional Cavopulmonary Anastomosis: Analysis Of Preoperative Risk Factors., Mark A. Scheurer, Elizabeth G Hill, Nagavardhan Vasuki, Scott Maurer, Eric M. Graham, Varsha Bandisode, Girish S. Shirali, Andrew M. Atz, Scott M. Bradley Jul 2007

Survival After Bidirectional Cavopulmonary Anastomosis: Analysis Of Preoperative Risk Factors., Mark A. Scheurer, Elizabeth G Hill, Nagavardhan Vasuki, Scott Maurer, Eric M. Graham, Varsha Bandisode, Girish S. Shirali, Andrew M. Atz, Scott M. Bradley

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: Prognostic factors for survival after bidirectional cavopulmonary anastomosis for functionally single ventricle are not well defined. We analyzed preoperative hemodynamic and echocardiographic data to determine risk factors for death or transplantation at least 1 year after bidirectional cavopulmonary anastomosis.

METHODS: Data for all patients who underwent bidirectional cavopulmonary anastomosis before 5 years of age at our institution from September 1995 through June 2005 were analyzed. Available preoperative echocardiograms and catheterizations were reviewed. Survivors were compared with those who died or underwent transplantation. Bivariable associations between demographic and clinical risk factors and survival status (alive without transplantation vs dead or …


A Review Of The Association Between Congestive Heart Failure And Cognitive Impairment., Michael B. Cohen, Paul J. Mather May 2007

A Review Of The Association Between Congestive Heart Failure And Cognitive Impairment., Michael B. Cohen, Paul J. Mather

Division of Cardiology Faculty Papers

Heart failure is a growing epidemic with an estimated 5 million Americans suffering from this condition. Several clinical trials have demonstrated a high correlation between congestive heart failure (CHF) and cognitive impairment. The severity of cognitive impairment correlates positively with the degree of CHF. The underlying mechanism for cognitive impairment remains unclear but appears to be related to cerebral hypoperfusion and impaired cerebral reactivity with selective impairment of verbal memory and attention domains. Furthermore, cognitive dysfunction represents one aspect of frailty, a novel concept that encompasses a range of clinical conditions that results in functional impairment in patients with heart …


Beta Blocker Specificity: A Building Block Toward Personalized Medicine., Brent R Degeorge, Walter J Koch Jan 2007

Beta Blocker Specificity: A Building Block Toward Personalized Medicine., Brent R Degeorge, Walter J Koch

Center for Translational Medicine Faculty Papers

Drugs known as beta blockers, which antagonize the beta-adrenergic receptor (beta-AR), are an important component of the treatment regimen for chronic heart failure (HF). However, a significant body of evidence indicates that genetic heterogeneity at the level of the beta(1)-AR may be a factor in explaining the variable responses of HF patients to beta blockade. In this issue of the JCI, Rochais et al. describe how a single amino acid change in beta(1)-AR alters its structural conformation and improves its functional response to carvedilol, a beta blocker currently used in the treatment of HF (see the related article beginning on …


Guidelines And Standards For Performance Of A Pediatric Echocardiogram: A Report From The Task Force Of The Pediatric Council Of The American Society Of Echocardiography., Wyman W. Lai, Tal Geva, Girish S. Shirali, Peter C. Frommelt, Richard A. Humes, Michael M. Brook, Ricardo H. Pignatelli, Jack Rychik, Pediatric Council Of The American Society Of Echocardiography Dec 2006

Guidelines And Standards For Performance Of A Pediatric Echocardiogram: A Report From The Task Force Of The Pediatric Council Of The American Society Of Echocardiography., Wyman W. Lai, Tal Geva, Girish S. Shirali, Peter C. Frommelt, Richard A. Humes, Michael M. Brook, Ricardo H. Pignatelli, Jack Rychik, Pediatric Council Of The American Society Of Echocardiography

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Incidence And Outcome Of Cardiopulmonary Resuscitation In Patients With Shunted Single Ventricle: Advantage Of Right Ventricle To Pulmonary Artery Shunt., Eric M. Graham, Geoffrey A. Forbus, Scott M. Bradley, Girish S. Shirali, Andrew M. Atz May 2006

Incidence And Outcome Of Cardiopulmonary Resuscitation In Patients With Shunted Single Ventricle: Advantage Of Right Ventricle To Pulmonary Artery Shunt., Eric M. Graham, Geoffrey A. Forbus, Scott M. Bradley, Girish S. Shirali, Andrew M. Atz

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Cardiac Transplant Following Failed Fontan Or Glenn Procedures., Naveen L. Pereira, Girish S. Shirali Oct 2005

Cardiac Transplant Following Failed Fontan Or Glenn Procedures., Naveen L. Pereira, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Probucol Prevents Early Coronary Heart Disease And Death In The High-Density Lipoprotein Receptor Sr-Bi/Apolipoprotein E Double Knockout Mouse, Anne Braun, Songwen Zhang, Helena E. Miettinen, Shamsah Ebrahim, Teresa M. Holm, Eliza Vasile, Mark J. Post Jun 2003

Probucol Prevents Early Coronary Heart Disease And Death In The High-Density Lipoprotein Receptor Sr-Bi/Apolipoprotein E Double Knockout Mouse, Anne Braun, Songwen Zhang, Helena E. Miettinen, Shamsah Ebrahim, Teresa M. Holm, Eliza Vasile, Mark J. Post

Dartmouth Scholarship

Mice with homozygous null mutations in the high-density lipoprotein receptor SR-BI (scavenger receptor class B, type I) and apolipoprotein E genes fed a low-fat diet exhibit a constellation of pathologies shared with human atherosclerotic coronary heart disease (CHD): hypercholesterolemia, occlusive coronary atherosclerosis, myocardial infarctions, cardiac dysfunction (heart enlargement, reduced systolic function and ejection fraction, and ECG abnormalities), and premature death (mean age 6 weeks). They also exhibit a block in RBC maturation and abnormally high plasma unesterified-to-total cholesterol ratio (0.8) with associated abnormal lipoprotein morphology (lamellar/vesicular and stacked discoidal particles reminiscent of those in lecithin/cholesterol acyltransferase deficiency and cholestasis). Treatment …


Association Of Viral Genome With Graft Loss In Children After Cardiac Transplantation., Girish S. Shirali, J Ni, R E. Chinnock, J K. Johnston, G L. Rosenthal, N E. Bowles, J A. Towbin May 2001

Association Of Viral Genome With Graft Loss In Children After Cardiac Transplantation., Girish S. Shirali, J Ni, R E. Chinnock, J K. Johnston, G L. Rosenthal, N E. Bowles, J A. Towbin

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The survival of recipients of cardiac allografts is limited by rejection, lymphoproliferative disease, and coronary vasculopathy. The purpose of this study in children who had received heart transplants was to evaluate the cardiac allografts for myocardial viral infections and to determine whether the presence of viral genome in the myocardium correlates with rejection, coronary vasculopathy, or graft loss.

METHODS: We enrolled heart-transplant recipients 1 day to 18 years old who were undergoing evaluation for possible rejection and coronary vasculopathy. Endomyocardial-biopsy specimens were evaluated for evidence of rejection with the use of standard criteria and were analyzed for the presence …


Recognition Of Left Atrial Aneurysm By Fetal Echocardiography., R R. Fountain-Dommer, H B. Wiles, C O. Shuler, S M. Bradley, Girish S. Shirali Oct 2000

Recognition Of Left Atrial Aneurysm By Fetal Echocardiography., R R. Fountain-Dommer, H B. Wiles, C O. Shuler, S M. Bradley, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.