Cardiology Commons^™

Applying Genomics In Heart Transplantation., Brendan J Keating, Alexandre C Pereira, Michael Snyder, Brian D. Piening

Articles, Abstracts, and Reports

While advances in patient care and immunosuppressive pharmacotherapies have increased the lifespan of heart allograft recipients, there are still significant comorbidities post-transplantation and 5-year survival rates are still significant, at approximately 70%. The last decade has seen massive strides in genomics and other omics fields, including transcriptomics, with many of these advances now starting to impact heart transplant clinical care. This review summarizes a number of the key advances in genomics which are relevant for heart transplant outcomes, and we highlight the translational potential that such knowledge may bring to patient care within the next decade.

Delayed Sternal Closure Does Not Reduce Complications Associated With Coagulopathy And Right Ventricular Failure After Left Ventricular Assist Device Implantation, Roh Yanagida, Navin Rajagopalan, Daniel L. Davenport, Thomas A. Tribble, Mark A. Bradley, Charles W. Hoopes

Internal Medicine Faculty Publications

Delayed sternal closure (DSC) is occasionally adopted after implantation of left ventricular assist device (LVAD). Recent studies suggest that DSC be used for high risk group of patients with coagulopathy, hemodynamic instability or right ventricular failure. However, whether DSC is efficacious for bleeding complication or right ventricular failure is not known. This study is single center analysis of 52 patients, who underwent LVAD implantation. Of those 52 patients, 40 consecutive patients underwent DSC routinely. The sternum was left open with vacuum assist device after implantation of LVAD. Perioperative outcome of the patients who underwent routine DSC were compared with 12 …

The Peripheral Vascular Intervention (Pvi)-Lower Extremity Structured Report: A Tool For Physician Reporting Data Elements For The National Cardiovascular Data Registry (Ncdr ® ) Pvi Registry ™, Emily Keltner Bs, Ma, Brenda Springer, T. Eric White Md

Parkview Heart Institute

Background

The American College of Cardiology (ACC)/ National Cardiovascular Data Registry (NCDR®) Peripheral Vascular Intervention (PVI) Registry™ relies on thorough data collection to give registry participants a way to measure and improve the quality of care they provide to their patients. The majority of the data being collected in the PVI lower extremity procedures comes directly from the Interventional Cardiologist’s procedural report. There were three different reports from five physicians. The Interventional Cardiologist Group meets monthly to discuss cases and other pertinent information to the group. The members of this group include the Interventional Cardiologists, Parkview Heart Institute’s Chief Operating …

Echocardiographic Detection Of Increased Ventricular Diastolic Stiffness In Pediatric Heart Transplant Recipients: A Pilot Study., Shahryar M. Chowdhury, Ryan J. Butts, Anthony M. Hlavacek, Carolyn L. Taylor, Karen S. Chessa, Varsha M. Bandisode, Girish S. Shirali, Arni Nutting, G Hamilton Baker

Manuscripts, Articles, Book Chapters and Other Papers

Background: Pediatric heart transplant recipients are at risk for increased left ventricular (LV) diastolic stiffness. However, the noninvasive evaluation of LV stiffness has remained elusive in this population. The objective of this study was to compare novel echocardiographic measures of LV diastolic stiffness versus gold-standard measures derived from pressure-volume loop (PVL) analysis in pediatric heart transplant recipients.

Methods: Patients undergoing left heart catheterization were prospectively enrolled. PVLs were obtained via conductance. The end-diastolic pressure-volume relationship was obtained via balloon occlusion. The stiffness constant, β, was calculated. Echocardiographic measures of diastolic function were derived from spectral and tissue Doppler and two-dimensional …

Myocarditis Mimicking Acute Coronary Syndrome - The Role Of Cardiac Magnetic Resonance Imaging In The Diagnosis, Fateh Ali Tipoo Sultan, Ghurfan Adnan

Section of Cardiology

Myocarditis is an inflammatory disease of myocardium with a wide range of clinical presentations. Myocarditis may mimic acute coronary syndrome (ACS) and adequate differential diagnosis is not possible by conventional tests. Cardiac magnetic resonance (CMR) has emerged as a leading imaging modality in the diagnosis of myocarditis in such patients. Here, we report three cases of myocarditis mimicking ACS with normal coronary arteries. CMR was used for confirming the diagnosis of myocarditis in all three patients presented here.

Treatment Options For Primary Cns Lymphoma, Abid Laghari, Syed Ijlal Ahmed, Adnan Jabbar, Muhammad Shahzad Shamim

Section of Haematology/Oncology

Primary CNS lymphoma (PCNSL) is a rare and aggressive brain tumour that is uniformly fatal. The rarity of the disease and the poor response to treatment makes it difficult to reach a consensus with regards to treatment options. In this review, the authors have discussed different treatment modalities used in the management of PCNSL including chemotherapy, surgery and radiation, as well as the results of recent clinical trials on treatment options for PCNSL.

Type Ii Brugada Syndrome Syncopal Seizure: A Diagnostic Dilemma, Syed Rafay Ali Sabzwari, Nghia Hoang

Department of Medicine

Background: Type II Brugada syndrome is a rare entity that can present as syncope, sudden cardiac death, palpitations and nocturnal agonal respiration as a manifestation of ventricular tachyarrythmia. Although patients can experience a syncopal seizure, the dilemma between epileptic seizure and syncopal seizure due to type II Brugada syndrome is rarely encountered and reported in literature.

Case: 45 years old caucasian male with history of bicuspid aortic valve and no family history of sudden cardiac death or arrhythmia presented with generalized body shaking, unresponsiveness, mouth frothing and rolling of eyes for 4 minutes during sleep followed by 30 minutes of …

Outcomes Of Catheter Ablation For Supraventricular Tachycardia In Adult Patients With Congenital Heart Disease, Lohit Garg Md, Sahil Agrawal Md, Manyoo Agarwal Md, Brijesh Patel Md, Mahek Shah Md, Aakash Garg Md, Sudip Nanda Md, Facp, Talha Nazir Md, Raman Dusaj Md

Department of Medicine

Background: Supraventricular tachyarrhythmias (SVT) are common in adult patients with congenital heart disease (CHD). There is paucity of data regarding the safety and outcomes associated with catheter ablation in these patients.

Methods: We queried the National Inpatient Sample (NIS) to identify all adults patients > 18 years with CHD undergoing catheter ablation for SVT.

Results: Between 2003-2013, 5,966 patients with CHD underwent catheter ablation for SVT. Of these 4,769 were performed for atrial fibrillation or atrial flutter and rest for other SVTs. The mean age of these patient was 47+/- 15 years, 59.9% were males. 18% of patients experienced procedure related …

Obesity Is Not Associated With A Differential Outcome Following Coronary Artery Bypass Surgery, Lohit Garg Md, Sahil Agrawal Md, Amitoj Singh, Raman Dusaj, Jamshid Shirani

Department of Medicine

Background: Conflicting data exists regarding the impact of obesity on mortality and morbidity following coronary artery bypass graft (CABG) surgery with some suggesting a paradoxical reduction in adverse outcomes. We aimed to compare the in-hospital outcomes of CABG in obese and non-obese subjects.

Methods: The Nationwide Inpatient Sample for years 2003- 2014 was used to identify adults (age ≥18 years) who underwent isolated CABG.

Results: A total of 2,297,932 patients underwent CABG of which 554,857 (28.2%) surgeries were for acute coronary syndrome (ACS) and 1,743075 (74.2%) were elective. Obese patients in either group were younger, were more likely to be …

Cardiac Amyloidosis Masquerading As Hypertrophic Obstructive Cardiomyopathy, Lohit Garg Md, Naveen Sablani, Amy Ahnert, Bruce Feldman Do

Department of Medicine

Background: Cardiac amyloidosis (CA) remains a diagnostic challenge and is associated with significant morbidity and mortality.

Case: A 67-year old male was referred for septal myomectomy for hypertrophic obstructive cardiomyopathy (HOCM) due to worsening symptoms despite medical therapy. His medical history included chronic diastolic heart failure, and atrial fibrillation post pulmonary vein isolation. His examination revealed mid peaking crescendo-decrescendo systolic murmur, worse on Valsalva. An electrocardiogram revealed normal sinus rhythm and normal voltage. Transthoracic and transesophageal echocardiogram revealed asymmetric septal hypertrophy, chordal systolic anterior motion (SAM), and left ventricular (LV) obstruction with a peak gradient of 40 mmHg at rest. …

Risk Factors For Major Early Adverse Events Related To Cardiac Catheterization In Children And Young Adults With Pulmonary Hypertension: An Analysis Of Data From The Impact (Improving Adult And Congenital Treatment) Registry., Michael L O'Byrne, Kevin F Kennedy, Joshua P Kanter, John T Berger, Andrew C Glatz

Pediatrics Faculty Publications

BACKGROUND: Cardiac catheterization is the gold standard for assessment and follow-up of patients with pulmonary hypertension (PH). To date, there are limited data about the factors that influence the risk of catastrophic adverse events after catheterization in this population.

METHODS AND RESULTS: A retrospective multicenter cohort study was performed to measure risk of catastrophic adverse outcomes after catheterization in children and young adults with PH and identify risk factors for these outcomes. All catheterizations in children and young adults, aged 0 to 21 years, with PH at hospitals submitting data to the IMPACT (Improving Adult and Congenital Treatment) registry between …

Acute Pressor Response To Psychosocial Stress Is Dependent On Endothelium‐Derived Endothelin‐1, Brandon M. Fox, Bryan K. Becker, Analia S. Loria, Kelly A. Hyndman, Chunhua Jin, Hannah Clark, Robin Johns, Masashi Yanagisawa, David M. Pollock, Jennifer S. Pollock

Pharmacology and Nutritional Sciences Faculty Publications

Background

Acute psychosocial stress provokes increases in circulating endothelin‐1 (ET‐1) levels in humans and animal models. However, key questions about the physiological function and cellular source of stress‐induced ET‐1 remain unanswered. We hypothesized that endothelium‐derived ET‐1 contributes to the acute pressor response to stress via activation of the endothelin A receptor.

Methods and Results

Adult male vascular endothelium‐specific ET‐1 knockout mice and control mice that were homozygous for the floxed allele were exposed to acute psychosocial stress in the form of cage switch stress (CSS), with blood pressure measured by telemetry. An acute pressor response was elicited by CSS in …

Risk Scores-Medical Derivatives., Ronald S. Freudenberger Md

Department of Medicine

No abstract provided.

Premature Ventricular Contraction-Induced Polymorphic Ventricular Tachycardia After Leadless Pacemaker Implantation: A Unique Adverse Effect Of Leadless Pacing., Anish K Amin, Sreedhar R Billakanty, Nagesh Chopra, Eugene Y Fu, Allan J Nichols, James M Kleman, Gregory A Kidwell

Heart and Vascular Articles

No abstract provided.

Novel Scoring System For Prediction Of Cardiac Syndrome X In Women With Typical Angina And A Positive Exercise Tolerance Test, Farzad Masoudkabir, Ali Vasheghani-Farahani, Elham Hakki, Hamidreza Poorhosseini, Saeed Sadeghian, Seyed Hesameddin Abbasi, Shahram Bahmanyar, Seyed Ebrahim Kassaian

The Texas Heart Institute Journal

A major diagnostic challenge for cardiologists is to distinguish cardiac syndrome X (CSX) from obstructive coronary artery disease in women with typical angina and a positive exercise tolerance test (ETT). We performed this study to develop a scoring system that more accurately predicts CSX in this patient population.

Data on 976 women with typical angina and a positive ETT who underwent coronary angiography at our center were randomly divided into derivation and validation datasets. We developed a backward stepwise logistic regression model that predicted the presence of CSX, and a scoring system was derived from it.

The derivation dataset (809 …

Rad Gtpase Deletion Atenuates Post-Ischemic Cardiac Dysfunction And Remodeling, Janet R. Manning, Lakshman Chelvarajan, Bryana R. Levitan, Catherine Nicole Kaminski Withers, Prabhakara R. Nagareddy, Christopher M. Haggerty, Brandon K. Fornwalt, Erhe Gao, Himi Tripathi, Ahmed Abdel-Latif, Douglas A. Andres, Jonathan Satin

Physiology Faculty Publications

The protein Rad interacts with the L-type calcium channel complex to modulate trigger Ca²⁺ and hence to govern contractility. Reducing Rad levels increases cardiac output. Ablation of Rad also attenuated the inflammatory response following acute myocardial infarction. Future studies to target deletion of Rad in the heart could be conducted to establish a novel treatment paradigm whereby pathologically stressed hearts would be given safe, stable positive inotropic support without arrhythmias and without pathological structural remodeling. Future investigations will also focus on establishing inhibitors of Rad and testing the efficacy of Rad deletion in cardioprotection relative to the time of …

Very Late Occurrence Of Complete Heart Block Without Preexisting Atrioventricular Conduction Abnormalities: A Rare Complication After Transaortic Valvular Replacement., Nagesh Chopra, Matthew S Tong, Steven J Yakubov

Heart and Vascular Articles

No abstract provided.

The World Database For Pediatric And Congenital Heart Surgery: Use Of An International Congenital Database In South Korea., James D. St Louis, Cheul Lee, Hiromi Kurosawa, Richard A. Jonas, Sakamoto Kisaburo, Christo I. Tchervenkov, Jeffery P. Jacobs, James K. Kirklin

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.

A Great Speech From A Great Man, Herbert L Fred

The Texas Heart Institute Journal

No abstract provided.

Cardiac Rehabilitation Improves Cardiometabolic Health In Young Patients With Nonischemic Dilated Cardiomyopathy, Samuel G Wittekind, Yvette Gerdes, Wayne Mays, Clifford Chin, John L Jefferies

The Texas Heart Institute Journal

Nonischemic dilated cardiomyopathy is deadly and costly, and treatment options are limited. Cardiac rehabilitation has proved safe and beneficial for adults with various types of heart failure. Therefore, we retrospectively evaluated the hypothesis that rehabilitation is safe and improves cardiometabolic health in young patients with nonischemic dilated cardiomypathy. From 2011 through 2015, 8 patients (4 males) (mean age, 20.6 ± 6.6 yr; range, 10-31 yr) underwent rehabilitation at our institution. They were in American Heart Association class C or D heart failure and were on maximal medical therapy. Their mean left ventricular ejection fraction at baseline was 0.26 ± 0.15. …