Cardiovascular System Commons^™

My Journey With The Heartware Ventricular Assist Device- An Obituary, Georg M. Wieselthaler

The VAD Journal

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The Influence Of Demographic, Social, And Economic Factors On Referral For Heart Failure Services, Catherine Elaine Kelty

Dissertations

Patients with end-stage advanced heart failure must go through an extensive evaluation process before being selected for either heart transplantation or left ventricular assist device (LVAD). This evaluation not only assesses a patient’s medical need for advanced heart failure treatments but also includes an assessment of psychosocial and economic factors that may affect a patient’s success post-treatment. While it is important to allocate scarce resources, such as donated organs, to the patients who will benefit the most, there is also a need for equity in the allocation of and access to healthcare services. This raises the question of whether patients …

A Preliminary Report: The Hippocampus And Surrounding Temporal Cortex Of Patients With Schizophrenia Have Impaired Blood-Brain Barrier, Eric L. Goldwaser, Randel L. Swanson, Edgardo J. Arroyo, Venkat Venkataraman, Mary C. Kosciuk, Robert G. Nagele, L. Elliot Hong, Nimish K. Acharya

Rowan-Virtua Research Day

Schizophrenia (SZ) is one of the most severe forms of mental illness, yet mechanisms remain unclear. A widely established brain finding in SZ is hippocampal atrophy, and a coherent explanation similarly is lacking. Epidemiological evidence suggests increased cerebrovascular and cardiovascular complications in SZ independent of lifestyle and medication, pointing to disease-specific pathology. Endothelial cell contributions to blood-brain barrier (BBB) compromise may influence neurovascular unit and peripheral vascular function, and we hypothesize that downstream functional and structural abnormalities may be explained by impaired BBB.

Diaphragmatic Adjacencies: Pulmonary Embolism Presenting As Abdominal Pain, Joseph Piraneo, Christopher Schwartz, Russell Mordecai

Rowan-Virtua Research Day

Pulmonary embolism is a common yet potentially life-threatening diagnosis that should not be missed in the Emergency Department. Common presenting symptoms include dyspnea, pleuritic chest pain, cough, hemoptysis, syncope or pre-syncope. Less often, however, presenting symptoms can include abdominal pain. A clinician should recognize that pain adjacent to the diaphragm (including the lower chest and upper abdomen), can be secondary to underlying pathology either above or below the diaphragm. Here we describe an unusual case of pleuritic, post-prandial, right upper quadrant abdominal pain that was a result of pulmonary embolism.

Does Simulation-Based Education For Cardiac Auscultation Improve Competency And Retention Rate Compared With Traditional Education?, Harrison Patrizio, Riley Phyu, Bum Kim, Nils V. Brolis

Rowan-Virtua Research Day

Cardiac auscultation is a critical part of clinical examination. Stethoscope allows for early detection of numerous important cardiac pathologies and appropriate referral for further management. Improper use of stethoscopes leads to inappropriate referral resulting in unnecessary financial stress or a delay in proper treatment of time-sensitive pathologies like VSD in children. Multiple studies have documented that competency among medical professionals in cardiac auscultation skills is in steady decline and this is due to the ineffective teaching method of cardiac auscultation starting in medical school.

Objective: To investigate the effectiveness of simulated education in cardiac auscultation.

The Cloak Of Invisibility: Subclinical Infective Endocarditis Resulting In Chordae Tendineae Rupture In Mitral Valve Prolapse, Jason Naftulin, Trinava Roy, Anjeli Patel, Steven Silver

Rowan-Virtua Research Day

While Chordae tendineae rupture(CTR) is often caused due to mitral valve prolapse, rheumatic heart disease or infective endocarditis, CTR secondary to a combination of the factors is not often seen. We present a unique case of CTR due to subclinical infective endocarditis(IE) with underlying mitral valve prolapse(MVP).

Arterial Thromboembolism As A Sequela Of Mild Covid-19 Pneumonia With Resultant Gangrene Of The Right Lower Extremity, Sean Coulson, Brian Thomas, Christopher Chhoun

Rowan-Virtua Research Day

Hypercoagulable states leading to stroke, pulmonary embolism, and acute limb ischemia are well documented phenomena secondary to moderate-to-severe COVID-19 infections that produce significant respiratory morbidity.

Incidence is largely unknown with additional emerging clinical manifestations including, but not limited to: Viral and secondary bacterial pneumonia, respiratory failure, sepsis, stroke, acute kidney injury, pulmonary embolism, disseminated intravascular coagulation (DIC), as well as arterial and venous thromboembolism.

Fortuitous Diagnosis Of Total Anomalous Pulmonary Venous Return In A Newborn With Hypoglycemia, Joseph Maes, Terence Zach

Child Health Research Institute Pediatric Research Forum

No abstract provided.

Effective Therapies And Nursing Approaches: Improving Cognition In Older Adult Stroke Patients, Selyna Baltazar

Nursing | Senior Theses

Background

Ischemic stroke occurs in thousands of older adults throughout the year. Due to the lack of oxygen entering the brain, many patients experience a decline in cognitive function due to ischemic stroke. Cognition is the ability to understand, learn, and remember information which is needed for completing daily tasks. Modern technology has allowed for patients to survive ischemic strokes but has yet to provide proper screening tools and methods for stroke-related cognitive impairment.

Objective

To investigate the best practices for identifying, treating, and caring for patients with a cognitive injury related to a stroke. A review of the research …

Alternative Fixation Of Venous Valves For Bioprosthetic Applications, Makenzie Kapales

Biomedical Engineering Undergraduate Honors Theses

Venous valve failure allows for the retrograde, or backward, flow of blood into the lower extremities, which leads to Chronic Venous Insufficiency (CVI). CVI infringes upon quality of life through ulceration and can result in death due to Deep Vein Thrombosis (DVT), or blood clots, causing pulmonary embolism. A successful treatment of CVI restores valve function and prevents retrograde blood flow; however, current bioprosthetic venous valves exhibit low patency and high calcification. To improve upon bioprosthetic venous valves and CVI treatment, the University of Arkansas’s Cardiovascular Biomechanics Lab conducts studies with the purpose of comparing the properties and performance of …

Neuroanatomical Distribution Of Neurons Within The Hypothalamic Paraventricular Nucleus That Project To The Brainstem Rostral Ventrolateral Medulla, Nicolas Fuller

Undergraduate Honors Theses

The sympathetic nervous system is important in maintaining cardiovascular homeostasis. Elevated cardiovascular-related sympathetic activity can lead to neurogenic hypertension and a host of other serious cardiac-related abnormalities. The paraventricular nucleus (PVN) of the hypothalamus plays an important role in sympathetic cardiovascular regulation. Neurons from the PVN project to the rostral ventrolateral medulla (RVLM), which is the main brain stem sympathetic cardiovascular control center. While RVLM-projecting PVN neurons have been well characterized, the topographical organization within the PVN subnuclei is still not fully known. This neuroanatomical study aimed to map the topographical distribution of RVLM-projecting PVN neurons. Four different carboxylate FluoSphereTM …

The Impact Of Long Term Ovariectomy On Diastolic Function And Fibrosis Following Chronic Sympathetic Stimulation In Mice, Erin Moore

Undergraduate Honors Theses

Cardiovascular Disease (CVD) accounts for the leading number of deaths worldwide. Prior to menopause, women exhibit lower rates of CVD compared to age-matched men, however, risks for women increase with menopause. Studies show estrogen loss and age exacerbating cardiac β-adrenergic receptor (β-AR) signaling and contractile function. We therefore hypothesized that prolonged estrogen deficiency and chronic β-adrenergic stimulation cause decreases in cardiac function and increases in fibrosis in aged female hearts. Female mice underwent either an ovariectomy (OVX) or a control SHAM surgery at 10 weeks old and were infused with Isoproterenol for three days via mini osmotic pumps in …

Electrocardiogram-Based Machine Learning Emulator Model For Predicting Novel Echocardiography-Derived Phenogroups For Cardiac Risk-Stratification: A Prospective Multicenter Cohort Study, Heenaben B. Patel, Naveena Yanamala, Brijesh Patel, Sameer Raina, Peter D. Farjo, Srinidhi Sunkara, Márton Tokodi, Nobuyuki Kagiyama, Grace Casaclang-Verzosa, Partho P. Sengupta

Journal of Patient-Centered Research and Reviews

Purpose: Electrocardiography (ECG)-derived machine learning models can predict echocardiography (echo)-derived indices of systolic or diastolic function. However, systolic and diastolic dysfunction frequently coexists, which necessitates an integrated assessment for optimal risk-stratification. We explored an ECG-derived model that emulates an echo-derived model that combines multiple parameters for identifying patient phenogroups at risk for major adverse cardiac events (MACE).

Methods: In this substudy of a prospective, multicenter study, patients from 3 institutions (n = 727) formed an internal cohort, and the fourth institution was reserved as an external test set (n = 518). A previously validated patient similarity analysis model was used …

What Did We Learn About Vads In 2021?, Maya Guglin

The VAD Journal

This is our 8th annual literature review on mechanical circulatory support (MCS) devices.

Our previous reports were well received by the readers. The full text of the reviews for 2014, 2015, 2016, 2017, 2018, 2019, and 2020^1-7 were downloaded 821, 861, 701, 869, 951, 272, and 365 times, respectively.

In this review, we summarized the most interesting and important, from our standpoint, publications from 2021. There may be some slight overlap with the end of 2020 because some papers were published online first, and the year of the publication changed when they became …

Key Factors For Improving Rigor And Reproducibility: Guidelines, Peer Reviews, And Journal Technical Reviews, Hong S. Lu, Alan Daugherty

Saha Cardiovascular Research Center Faculty Publications

To respond to the NIH's policy for rigor and reproducibility in preclinical research, many journals have implemented guidelines and checklists to guide authors in improving the rigor and reproducibility of their research. Transparency in developing detailed prospective experimental designs and providing raw data are essential premises of rigor and reproducibility. Standard peer reviews and journal-specific technical and statistical reviews are critical factors for enhancing rigor and reproducibility. This brief review also shares some experience from Arteriosclerosis, Thrombosis, and Vascular Biology, an American Heart Association journal, that has implemented several mechanisms to enhance rigor and reproducibility for preclinical research.

Design And Development Of Software With A Graphical User Interface To Display And Convert Multiple Microscopic Histology Images, Sayed Ahmadreza Razian, Majid Jadidi, Alexey Kamenskiy

UNO Student Research and Creative Activity Fair

Histological images are widely used to assess the microscopic anatomy of biological tissues. Recent advancements in image analysis allow the identification of structural features on histological sections that can help advance medical device development, brain and cancer research, drug discovery, vascular mechanobiology, and many other fields. Histological slide scanners create images in SVS and TIFF formats that were designed to archive image blocks and high-resolution textual information. Because these formats were primarily intended for storage, they are often not compatible with conventional image analysis software and require conversion before they can be used in research. We have developed a user-friendly …

Tirofiban And Rivaroxaban Use In The Management Of Right Coronary Artery Thrombus As A Primary Manifestation Of Essential Thrombocythemia, Muhummad Nasir Rahman, Maleeha Javed

Section of Cardiology

A 45 year old male with hypertension was presented to our centre with a recent inferior wall myocardial infarction (IWMI) and post infarction angina. Invasive coronary angiography revealed an occluded proximal right coronary artery (RCA) with high thrombus burden, in the absence of obstructive disease in the remaining coronary vasculature. Based on raised platelet counts of 923,000/microliter and positive Janus kinase (JAK 2- V617) mutations tested by polymerase chain reaction (PCR), a diagnosis of essential thrombocythemia (ET) was made. A therapeutic strategy of aspiration thrombectomy along with I/V Tirofiban was used for three days, followed by reassessed angiogram and percutaneous …

Determinant Of Repeat Revascularization Within 5 Years Of Percutaneous Coronary Lntervention At A Tertiary Care Hospital, Karachi: A Matched Case-Control Study, Komal Valliani, Azmina Artani, Iqbal Azam, Javed Tai, M. Masood Kadir

Community Health Sciences

Objective: To determine factors associated with repeat revascularization among adults aged 25 years and above within 5 years of first Percutaneous Coronary Intervention (PCI) at a tertiary care hospital.
Methods: A matched case-control study was conducted through a hospital records review. A total of 90 cases with repeat revascularization and 180 controls without repeat revascularization were included. Data was analyzed using Multiple Conditional Logistic Regression.
Results: The mean age was similar in cases and controls (60.05 ± 10.01 vs 62.20 ± 10.43 years) and sex (male: 77.8% vs. 76.1%). History of being an ever-smoker (40% vs. 25%), overweight (36.3% vs. …

Early Postoperative Arrhythmias After Pediatric Congenital Heart Disease Surgery: A 5-Year Audit From A Lower- To Middle-Income Country, Sidra Ishaque, Saleem Akhtar, Asma Akbar Ladak, Russell Seth Martins, Muhammad Kamran Younis Memon, Alisha Raza Kazmi, Fatima Mahmood, Anwar Ul Haque

Department of Paediatrics and Child Health

Background: Postoperative arrhythmias are a known complication after surgical repair for congenital heart disease (CHD). This study aimed to identify and discuss the prevalence, diagnosis, and management of common rhythm disturbances seen in the immediate postoperative period after surgery for CHD in the pediatric population at a tertiary care hospital in Pakistan.
Methods: A retrospective study was conducted at a tertiary care hospital in Pakistan between January 2014 and December 2018. All pediatric (old) patients admitted to the intensive care unit and undergoing continuous electrocardiographic monitoring after surgery for CHD were included in this study. Data pertaining to the incidence, …

Temporary Epicardial Pacing Wires In Isolated Coronary Artery Bypass Graft: Necessity Or Force Of Habit?, Mian Mustafa Kamal, Abdul Ahad Sohail, Majid Osman, Shiraz Hashmi, Muhammad Mehdi, Asma Altaf Hussain Merchant, Hasanat Sharif

Section of Cardiothoracic Surgery

Objective: To determine the frequency of Temporary epicardial pacing wires usage and its predictors in the immediate postoperative period in isolated coronary artery bypass graft surgery.
Methods: The longitudinal study was conducted at the Aga Khan University Hospital, Karachi, from September 2019 to August 2020, and comprised adult patients of either gender who underwent isolated coronary artery bypass graft in the Department of Cardiothoracic Surgery. Demographic, peri-operative and post-operative Temporary Epicardial Pacing Wires use data was extracted from patient's files and the institutional electronic database. Logistic regression models were built to explore predictors of Temporary epicardial pacing wires usage. Data …