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Articles 1 - 30 of 400
Full-Text Articles in Cardiology
Ambulatory Blood Pressure Monitoring Phenotypes And Circadian Blood Pressure Patterns Among Adults Referred For Diagnostic Evaluation At Aga Khan University Hospital, Nairobi, Kenya: A Retrospective Cross-Sectional Study, Nadeem Kassam, Mzee Ngunga, James Orwa, Alisa Bhojani, Mohamed Varwani, Swaffiya Salim, Yvonne Oketch, Salim Surani, Anthony Ochola, Barbara Karau, Jeilan Mohamed, Etienne Amendezo
Ambulatory Blood Pressure Monitoring Phenotypes And Circadian Blood Pressure Patterns Among Adults Referred For Diagnostic Evaluation At Aga Khan University Hospital, Nairobi, Kenya: A Retrospective Cross-Sectional Study, Nadeem Kassam, Mzee Ngunga, James Orwa, Alisa Bhojani, Mohamed Varwani, Swaffiya Salim, Yvonne Oketch, Salim Surani, Anthony Ochola, Barbara Karau, Jeilan Mohamed, Etienne Amendezo
Internal Medicine, East Africa
Introduction: hypertension represents the primary modifiable risk factor for cardiovascular disease and poses a public health challenge in sub-Saharan regions, with Kenya experiencing particularly low detection and control rates. Traditional office-based blood pressure measurements often fail to detect key phenotypes, such as white-coat and masked hypertension. Ambulatory Blood Pressure Monitoring (ABPM) offers a comprehensive 24-hour profile that excludes white-coat hypertension and allows for the evaluation of circadian patterns, including nocturnal hypertension and non-dipping status, both of which are recognized as high-risk phenotypes strongly linked to adverse cardiovascular events. This study evaluated ABPM data from Aga Khan University Hospital, Nairobi …
Contextual Variability In Under-Diagnosed Cardiometabolic Disease And Cognitive Vulnerability Among Populations At High Risk For Alzheimer's Disease And Related Dementias, Nwanyieze Jiakponnah, Joseph Curran, Tamlyn Watermeyer, Jasmit Shah, Litha Musili, Stanely Onyango, Benard Aliwa, Zul Merali, Karen Blackmon, Chinedu Momoh
Contextual Variability In Under-Diagnosed Cardiometabolic Disease And Cognitive Vulnerability Among Populations At High Risk For Alzheimer's Disease And Related Dementias, Nwanyieze Jiakponnah, Joseph Curran, Tamlyn Watermeyer, Jasmit Shah, Litha Musili, Stanely Onyango, Benard Aliwa, Zul Merali, Karen Blackmon, Chinedu Momoh
Brain and Mind Institute
Underdiagnosis of cardiometabolic risk factors (CMRFs) may represent an unrecognised biological pathway contributing to dementia risk; yet remains poorly characterised in African and African diaspora populations. We quantified the prevalence and determinants of underdiagnosed hypertension and abnormal glycaemia across four cohorts comprising up to 7000 adults aged ≥40 years from Nigeria, Kenya, and The United States: Indianapolis, and North Texas. Underdiagnosis was defined as absence of self-reported diagnosis despite elevated systolic blood pressure ( ≥130 mmHg) or fasting blood glucose ( ≥100 mg/dL). Cohort-stratified analyses examined demographic, socioeconomic, cognitive, Alzheimer’s genetic, and blood-based biomarker correlates. Underdiagnosis was pervasive in African …
The 2025 Accra Declaration On Upskilling And Cost- Effective Cardiac Surgery In Africa, Charles Yankah, Jonathan Nwiloh, Carlos Mestres, Abdelmalek Bouzid, Tom Mwambu, Andrew Duncan, Mohamed Debieche, Samuel Omokhodion, Uvie Onakpoya, Matthias Angres
The 2025 Accra Declaration On Upskilling And Cost- Effective Cardiac Surgery In Africa, Charles Yankah, Jonathan Nwiloh, Carlos Mestres, Abdelmalek Bouzid, Tom Mwambu, Andrew Duncan, Mohamed Debieche, Samuel Omokhodion, Uvie Onakpoya, Matthias Angres
General Surgery, East Africa
The Pan-African Society for Cardiothoracic Surgery (PASCaTS) organized the 1st Pan-African Cardiothoracic Surgery Summit on 21 to 24 February 2025 in Accra, Ghana. The summit brought together leading specialists from across Africa, China, Europe, South America and the USA to address the growing burden of cardiovascular disease, to share their vision for the fight against cardiovascular disease, to raise standards in the diagnosis, treatment and recovery of patients thereby improving procedural safety and clinical outcomes in Africa. The experts agreed on the need for cost effectiveness in cardiac surgery, simulation skills training, an African regional cardiothoracic surgery database, African heart …
Performance Of The Grace Acs Risk Score In Predicting In-Hospital And Six-Month Mortality In Patients With Acs: A Single Center Retrospective Cohort Study, Albert Nyanga, Jeilan Mohamed, Miriam Msunza, James Orwa, Mzee Ngunga
Performance Of The Grace Acs Risk Score In Predicting In-Hospital And Six-Month Mortality In Patients With Acs: A Single Center Retrospective Cohort Study, Albert Nyanga, Jeilan Mohamed, Miriam Msunza, James Orwa, Mzee Ngunga
Internal Medicine, East Africa
Introduction: The incidence of coronary heart disease (CHD) is rising globally. Despite the high burden of CHD in Africa, little is known about appropriate risk stratification systems that can be used to predict outcomes in patients with acute coronary syndromes (ACS) in this region.
Methodology: This was a single-center retrospective cohort study conducted at the Aga Khan University hospital. Data was explored descriptively by summarizing categorical variables using frequencies/percentages and continuous variables using medians and interquartile ranges. Risk groups and mortality were compared using Fisher’s exact test or the chi-square test. The area under the receiver operating characteristic curve (AUROC), …
Utilization Of Evidence-Based Secondary Preventive Therapies Post-Acute Coronary Syndrome: A Heart Registry Cohort Study In Kenya, Anthony Ochola, Jasmit Shah, Jeilan Mohamed, Harun Otieno, Anders Barasa, Felix Barasa, Constantine Akwanalo, Benard Gitura, Mzee Ngunga
Utilization Of Evidence-Based Secondary Preventive Therapies Post-Acute Coronary Syndrome: A Heart Registry Cohort Study In Kenya, Anthony Ochola, Jasmit Shah, Jeilan Mohamed, Harun Otieno, Anders Barasa, Felix Barasa, Constantine Akwanalo, Benard Gitura, Mzee Ngunga
Internal Medicine, East Africa
Introduction: cardiovascular disease is a growing concern in Africa, with coronary artery disease emerging as a leading cause of mortality. Despite strong evidence and international guidelines recommending secondary prevention therapy post-acute coronary syndrome (ACS)-including antiplatelet agents, statins, beta blockers, and angiotensin-converting enzyme (ACE) inhibitors-suboptimal use remains a concern, especially in low- and middle-income countries. This study aimed to quantify the use of guideline-recommended secondary prevention medications after ACS in Kenya using the data from the Kenya Heart Registry study.
Methods: a cohort study was conducted using data from the Kenya Heart Registry across three hospitals in Kenya from …
Sex Differences In Clinical Characteristics, Treatment, And Outcomes Of Cardiovascular Disease: Kenya Heart Registry Analysis, Lilian Mbau, Martha Gulati, Mzee Ngunga, Jasmit Shah, Felix Barasa, Jeilan Mohamed, Anders Barasa, Bernard Gitura, Harun Otieno, Etienne Amendezo
Sex Differences In Clinical Characteristics, Treatment, And Outcomes Of Cardiovascular Disease: Kenya Heart Registry Analysis, Lilian Mbau, Martha Gulati, Mzee Ngunga, Jasmit Shah, Felix Barasa, Jeilan Mohamed, Anders Barasa, Bernard Gitura, Harun Otieno, Etienne Amendezo
Internal Medicine, East Africa
Background Cardiovascular disease is the leading cause of death globally, with approximately 80% of these deaths occurring in low- and middle-income countries. Sex differences in cardiovascular disease are well described in high-income countries but limited in low- and middle-income countries.
Objectives This study sought to evaluate the sex differences in clinical presentation, cardiovascular risk profile, diagnosis, treatment, and outcomes among patients in the Kenya Heart Registry.
Methods Data were prospectively collected from 3 tertiary hospitals, including patients with heart failure, acute coronary syndrome, venous thromboembolism, and atrial fibrillation. Primary outcomes were in-hospital and 6-month mortality, as well as sex-specific differences …
Detection Of Left Ventricular Thrombus In Newly Diagnosed Heart Failure Patients: Diagnostic Accuracy Of 2d Transthoracic Echocardiography Compared With Cardiac Mri In A Kenyan Cohort, Barbara Karau, Nadeem Kassam, Mohamed Varwani, Jeilan Mohamed, Kevin Ombati, James Orwa, Mzee Ngunga
Detection Of Left Ventricular Thrombus In Newly Diagnosed Heart Failure Patients: Diagnostic Accuracy Of 2d Transthoracic Echocardiography Compared With Cardiac Mri In A Kenyan Cohort, Barbara Karau, Nadeem Kassam, Mohamed Varwani, Jeilan Mohamed, Kevin Ombati, James Orwa, Mzee Ngunga
Internal Medicine, East Africa
Background Left ventricular thrombus (LVT) is a recognized complication of severe left ventricular (LV) systolic dysfunction. While cardiac magnetic resonance (CMR) Imaging is considered the gold standard due to its high sensitivity and specificity for detecting LVT, its availability remains limited in Sub-Saharan Africa. In contrast, 2D transthoracic echocardiography (TTE) is more accessible and commonly used in clinical practice. This study aimed to determine the incidence of LVT in patients with a left ventricular ejection fraction (LVEF) of less than 35% from any etiology, and to compare the diagnostic accuracy of TTE against CMR for its detection.
Methods This prospective, …
The Colchicine-Sodium-Glucose Cotransporter Two Inhibitors Conundrum: Promise, Pitfalls, And Next Steps, Ali Bin Jabbar, Asma Ahmed, Salim S. Virani
The Colchicine-Sodium-Glucose Cotransporter Two Inhibitors Conundrum: Promise, Pitfalls, And Next Steps, Ali Bin Jabbar, Asma Ahmed, Salim S. Virani
Population Health, East Africa
No abstract provided.
International Accreditation For Acute Stroke Care: Lessons Learnt From A Kenyan Stroke Centre, Dilraj Sokhi
International Accreditation For Acute Stroke Care: Lessons Learnt From A Kenyan Stroke Centre, Dilraj Sokhi
Internal Medicine, East Africa
Background: The prevalence of stroke is increasing in Africa, yet resources remain limited in managing the disease. Whilst there are international guidelines on how to set up and manage stroke services, even in resource-limited settings, the uptake remains low. We describe here the opportunities and challenges we faced whilst setting up a stroke care pathway of international standards in a regional referral hospital in East Africa.
Methods: We describe how we adapted international stroke care guidelines for acute primary stroke (including both ischemic and hemorrhagic stroke), and used these to inform our stroke care pathway. We highlight opportunities of leveraging …
Fetal Myocardial Performance Index In The Late Third Trimester For The Prediction Of Intrapartum Cardiotocographic Abnormalities, Sikolia Wanyonyi, Ingrid Gichere
Fetal Myocardial Performance Index In The Late Third Trimester For The Prediction Of Intrapartum Cardiotocographic Abnormalities, Sikolia Wanyonyi, Ingrid Gichere
Obstetrics and Gynaecology, East Africa
Objective
We sought to determine whether fetal myocardial performance index (MPI) performed in the late third trimester could predict abnormal intrapartum cardiotocographic (CTG) patterns.
Methods
A prospective observational study including women presenting for fetal growth ultrasound from 32 weeks. Three consecutive measurements of the left ventricular MPI were obtained and averaged. The patients’ intrapartum CTG events were later observed.
Results
A total of 299 women were analyzed. The fetal MPI across the population were 0.41, 0.50 and 0.63, representing 10th, 50th and 90th centiles, respectively. A one-way analysis of variance (ANOVA) did not show a significant difference in MPI values …
Patients´ Characteristics And Six-Month Outcomes Of Patients With Atrial Fibrillation In Kenya: A Retrospective Observational Cohort Study From The National Cardiovascular Registry, Salim Abdallah, Jasmit Shah, Anders Barasa, Felix Barasa, Benard Gitura, Mzee Ngunga
Patients´ Characteristics And Six-Month Outcomes Of Patients With Atrial Fibrillation In Kenya: A Retrospective Observational Cohort Study From The National Cardiovascular Registry, Salim Abdallah, Jasmit Shah, Anders Barasa, Felix Barasa, Benard Gitura, Mzee Ngunga
Internal Medicine, East Africa
Introduction: atrial fibrillation is increasingly diagnosed in Kenya due to the persistence of rheumatic heart disease and the rising burden of cardiovascular risk factors. We aim to describe the baseline, clinical, treatment characteristics, and six-month outcomes of patients diagnosed with atrial fibrillation in Kenya.
Methods: a retrospective observational cohort study design was employed. Data were obtained from three Kenyan referral hospitals, including public and private institutions. Baseline and six-month data were collected. Depending on the type of variable, data were summarized descriptively.
Results: two hundred forty participants were enrolled, with a median age of 59.0 (IQR: 42.0-75.8). …
Cardiogenic Shock With Acute Myocardial Infarction Among Older Adults In The United States, Taha Mansoor, Ali Bin Jabbar, Mahmoud Ismayl, Dylan Yu, Kartik Gupta, Sachin Parikh, Austin Brubaker, Abdul Minhas, Dmitry Abramov, Salim S. Virani
Cardiogenic Shock With Acute Myocardial Infarction Among Older Adults In The United States, Taha Mansoor, Ali Bin Jabbar, Mahmoud Ismayl, Dylan Yu, Kartik Gupta, Sachin Parikh, Austin Brubaker, Abdul Minhas, Dmitry Abramov, Salim S. Virani
Population Health, East Africa
Background: Characteristics and outcomes associated with cardiogenic shock (CS) with acute myocardial infarction (AMI) in older patients have not been well characterized.
Objectives: The purpose of this study was to investigate characteristics and outcomes of older patients admitted with CS with AMI.
Methods: We used the National Inpatient Sample database to evaluate clinical characteristics of hospitalizations, clinical outcomes, and health care utilization of hospitalizations of older patients ≥80 years with CS and AMI from 2003 to 2021. We also compared data from older patients with a reference relatively younger patient population (18-79 years).
Results: During the study period, …
Interobserver Variability In Cardiovascular Fdg Pet/Ct Analysis In Large Vessel Vasculitis, Redemptar Kimeu, Anoop Shah, Samuel Gitau, Gemina Doolub, Jeilan Mohamed
Interobserver Variability In Cardiovascular Fdg Pet/Ct Analysis In Large Vessel Vasculitis, Redemptar Kimeu, Anoop Shah, Samuel Gitau, Gemina Doolub, Jeilan Mohamed
Imaging & Diagnostic Radiology, East Africa
Introduction: PET/CT has a synergistic value for optimal diagnosis, disease activity monitoring, and evaluation of damage progression in large vessel vasculitis. The use of standardized uptake values (SUV) as a measurement of relative tissue uptake facilitates comparisons between patients, and has been suggested as a basis for diagnosis. The SUVmean and SUVmax reproducibility in vascular structures is not widely studied.
Objective: The objective of this study was to evaluate the inter-observer variability of both qualitative visual grading of aortic 18F-FDG uptake and the quantitative aortic mean and maximum SUVs in these patients with mild to moderate covid-19 infection …
Management Of Pulmonary Arterial Hypertension: Current Strategies And Future Prospects, Munish Sharma, Vivek Paudyal, Saifullah Khalid Syed, Rubi Thapa, Nadeem Kassam, Salim Surani
Management Of Pulmonary Arterial Hypertension: Current Strategies And Future Prospects, Munish Sharma, Vivek Paudyal, Saifullah Khalid Syed, Rubi Thapa, Nadeem Kassam, Salim Surani
Internal Medicine, East Africa
Primary pulmonary hypertension (PPH), now known as pulmonary arterial hypertension (PAH), has induced significant treatment breakthroughs in the past decade. Treatment has focused on improving patient survival and quality of life, and delaying disease progression. Current therapies are categorized based on targeting different pathways known to contribute to PAH, including endothelin receptor antagonists (ERAs), phosphodiesterase-5 inhibitors (PDE-5 inhibitors), prostacyclin analogs, soluble guanylate cyclase stimulators, and activin signaling inhibitors such as Sotatercept. The latest addition to treatment options is soluble guanylate cyclase stimulators, such as Riociguat, which directly stimulates the nitric oxide pathway, facilitating vasodilation. Looking to the future, advancements in …
Case Series On Prosthetic Valve Thromboses Treated With Intravenous Thrombolysis At A Tertiary Teaching Hospital In Nairobi – Kenya, John Odhiambo, Salim Abdallah, Mzee Ngunga
Case Series On Prosthetic Valve Thromboses Treated With Intravenous Thrombolysis At A Tertiary Teaching Hospital In Nairobi – Kenya, John Odhiambo, Salim Abdallah, Mzee Ngunga
Internal Medicine, East Africa
Valvular heart disease is a significant global health issue, particularly in developing countries where Rheumatic Heart Disease (RHD) is the leading cause. Valve replacement surgeries have increased, with mechanical prostheses favored for their durability. However, thromboembolism remains a critical complication post-surgery, with prosthetic valve thrombosis rates of 0.03% for bioprosthetic valves and between 0.5% to 8% for mechanical valves in the aortic and mitral position. This report details two cases of heart failure following valve replacement due to rheumatic heart disease. The first case involves a 42-year-old female who developed prosthetic valve thrombosis after discontinuing warfarin for menorrhagia postmechanical mitral …
Incidence Of Bleeding And Performance Of The Precise-Dapt Score In Predicting Bleeding In Patients On Dual Antiplatelet Therapy After Treatment For Acute Coronary Syndrome In Kenya, Peter Mugo, Jeilan Mohamed, Miriam Msunza, James Orwa, Mzee Ngunga
Incidence Of Bleeding And Performance Of The Precise-Dapt Score In Predicting Bleeding In Patients On Dual Antiplatelet Therapy After Treatment For Acute Coronary Syndrome In Kenya, Peter Mugo, Jeilan Mohamed, Miriam Msunza, James Orwa, Mzee Ngunga
Internal Medicine, East Africa
Introduction: Dual Antiplatelet Therapy (DAPT) plays an important role in the secondary prevention of ischemic events after treatment for acute coronary syndrome (ACS). The long-term use of DAPT is associated with an increased risk of bleeding, which affects morbidity and mortality. Risk stratification scores have been developed to predict this risk and provide a balance against the risk of ischemic events. The aim of this study was to determine the incidence of bleeding in a cohort of patients in Kenya on DAPT and assess the performance of the PRECISE-DAPT Score in predicting the risk of bleeding.
Methods: This was a …
Ten-Year Review Of St-Segment Elevation Myocardial Infarction (Stemi) In Tanzania: A Single Center Retrospective Review, Nadeem Kassam, Mohamed Varwani, Mzee Ngunga, Jeilan Mohamed, Mangaro Mabusi, James Orwa, Salim Surani, Robert Mvungi, Nasiruddin Jamal
Ten-Year Review Of St-Segment Elevation Myocardial Infarction (Stemi) In Tanzania: A Single Center Retrospective Review, Nadeem Kassam, Mohamed Varwani, Mzee Ngunga, Jeilan Mohamed, Mangaro Mabusi, James Orwa, Salim Surani, Robert Mvungi, Nasiruddin Jamal
Internal Medicine, East Africa
Introduction: Ischemic Heart Disease (IHD) is an emerging epidemic in sub-Saharan Africa (SSA). Although the true burden may be underreported in the African continent, it still remains one of the leading causes of death among adults aged above 60 years. ST-Segment Elevation Myocardial Infarction (STEMI) is a clinically time-sensitive fatal sequela of IHD with timely reperfusion by primary Percutaneous Coronary Intervention (PCI) being the gold standard of care. There has been steady progress in coronary care services in Tanzania, alongside a rise in IHD-related risk factors. However, data on this is limited. This study aimed to examine trends in …
Quality Of Life After Myocardial Infarction In The Pakistani Population – Insights From A Single-Center Cohort Study, Javerya Hassan, Manzar Abbas, Hajra Arshad, Angelina Jessani, Izza Tahir, Shiza Qazi, Jasmit Shah, Zul Merali, Zainab Samad
Quality Of Life After Myocardial Infarction In The Pakistani Population – Insights From A Single-Center Cohort Study, Javerya Hassan, Manzar Abbas, Hajra Arshad, Angelina Jessani, Izza Tahir, Shiza Qazi, Jasmit Shah, Zul Merali, Zainab Samad
Brain and Mind Institute
Background Health-related Quality of life (HRQoL) assessment is essential for optimizing patient care, treatment adjustments, and medical decision-making, particularly in post-Myocardial Infarction (MI) patients, but limited data exists on HRQOL post-MI from Pakistan. This study aimed to assess HRQoL and its determinants in the Pakistani population.
Methods A single-center cross-sectional study was conducted at a tertiary care hospital in Karachi, Pakistan. Patients≥18 years old with a primary diagnosis of acute MI (ICD-9 codes: 410.0-410.9 and ICD-10 codes: 121.0- 121.9) discharged from the Cardiology Service from January 2019 to December 2020 who could be contacted and consented to participate were included. …
Factors Associated With Non-Uptake Of Implantable Cardioverter-Defibrillator (Icd) Among Eligible Patients At A Tertiary Hospital In Kenya, Emmanuel Oluoch, Jasmit Shah, Jeilan Mohamed, Mohamed Varwani, Mzee Ngunga
Factors Associated With Non-Uptake Of Implantable Cardioverter-Defibrillator (Icd) Among Eligible Patients At A Tertiary Hospital In Kenya, Emmanuel Oluoch, Jasmit Shah, Jeilan Mohamed, Mohamed Varwani, Mzee Ngunga
Internal Medicine, East Africa
Background: Efficacy of Implantable Cardioverter-Defibrillator (ICD) implantation in both primary and secondary prevention of Sudden Cardiac Death (SCD) in at-risk population is well established. ICD implantation rates remain low particularly in Africa with a paucity of data regarding factors associated with non-uptake.
Objectives:The primary study objective was to determine the factors associated with non-uptake of ICD among heart failure (HF) patients with reduced ejection fraction (EF
Methods: This was a retrospective study among HF patients eligible for ICD implantation evaluated between 2018 to 2020. Comparison between ICD recipient and non-recipient categories was made to establish determinants of non-uptake.
Results: …
Statin Utilization And Cardiovascular Outcomes In A Real-World Primary Prevention Cohort Of Older Adults, Aaron J. Walker, Jianhui Zhu, Floyd Thoma, Oscar Marroquin, Amber Makani, Martha Gulati, Eugenia Gianos, Salim S. Virani, Fatima Rodriguez, Steven E. Reis, Christie Ballantyne
Statin Utilization And Cardiovascular Outcomes In A Real-World Primary Prevention Cohort Of Older Adults, Aaron J. Walker, Jianhui Zhu, Floyd Thoma, Oscar Marroquin, Amber Makani, Martha Gulati, Eugenia Gianos, Salim S. Virani, Fatima Rodriguez, Steven E. Reis, Christie Ballantyne
Office of the Provost
Background: Statins are a cost-effective therapy for prevention of atherosclerotic cardiovascular disease (ASCVD). Guidelines on statins for primary prevention are unclear for older adults (>75 years).
Objective: Investigate statin utility in older adults without ASCVD events, by risk stratifying in a large healthcare network.
Methods: We included 8,114 older adults, without CAD, PVD or ischemic stroke. Statin utilization based on ACC/AHA 10-year ASCVD risk calculation, was evaluated in intermediate (7.5%-19.9%) and high-risk patients (≥ 20%); and categorized using low and 'moderate or high' intensity statins with a follow up period of ∼7 years. Cox regression models were used to …
Prediction Of Cardiovascular Risk Factors From Retinal Fundus Photographs: Validation Of A Deep Learning Algorithm In A Prospective Non-Interventional Study In Kenya, Tom White, Viknesh Selvarajah, Fredrik Wolfhagen, Nils Svangård, Gayathri Mohankumar, Peter Fenici, Kathryn Rough, Nelson Onyango, Mansoor Saleh, Innocent Abayo
Prediction Of Cardiovascular Risk Factors From Retinal Fundus Photographs: Validation Of A Deep Learning Algorithm In A Prospective Non-Interventional Study In Kenya, Tom White, Viknesh Selvarajah, Fredrik Wolfhagen, Nils Svangård, Gayathri Mohankumar, Peter Fenici, Kathryn Rough, Nelson Onyango, Mansoor Saleh, Innocent Abayo
Haematology and Oncology, East Africa
Aim: Hypertension and diabetes mellitus (DM) are major causes of morbidity andmortality, with growing burdens in low-income countries where they are underdiag-nosed and undertreated. Advances in machine learning may provide opportunities toenhance diagnostics in settings with limited medical infrastructure.
Materials and Methods: A non-interventional study was conducted to develop andvalidate a machine learning algorithm to estimate cardiovascular clinical and labora-tory parameters. At two sites in Kenya, digital retinal fundus photographs were col-lected alongside blood pressure (BP), laboratory measures and medical history. Theperformance of machine learning models, originally trained using data from the UKBiobank, were evaluated for their ability to estimate …
Differing Radiation Exposure In Scrub Technicians And Rotating Staff In Cardiac Catheterization Laboratory: Occupation Matters, Nasir Rahman, Maleeha Javed, Ghufran Adnan, Maria Khan, Zeenat Nizar, Izat Shah
Differing Radiation Exposure In Scrub Technicians And Rotating Staff In Cardiac Catheterization Laboratory: Occupation Matters, Nasir Rahman, Maleeha Javed, Ghufran Adnan, Maria Khan, Zeenat Nizar, Izat Shah
Section of Cardiology
Background: Radiation exposure is a significant hazard associated with invasive Cardiology, with most studies based on primary operator exposure. This prospective, observational study aimed to find out over lead radiation exposure as effective dose acquired by non-physician staff comprising scrub technicians and rotating staff in the cath laboratory. Effective dose (ED) measured per procedure via Raysafe i2®dosimeter badges worn by both rotating staff and scrub technicians over lead aprons along with dose area product (DAP), fluoroscopy time (FT) and procedure time (PT) in minutes was collected prospectively over forty-six invasive Cardiology procedures.
Results: This study shows that rotating staff acquire …
Association Of Cardiovascular Risk Profile With Premature All-Cause And Cardiovascular Mortality In Us Adults: Findings From A National Study, Ryan T. Nguyen, Vardhmaan Jain, Isaac Acquah, Safi U. Khan, Tarang Parekh, Mohamad Taha, Salim S. Virani, Michael J. Blaha, Khurram Nasir, Zulqarnain Javed Zulqarnain Javed
Association Of Cardiovascular Risk Profile With Premature All-Cause And Cardiovascular Mortality In Us Adults: Findings From A National Study, Ryan T. Nguyen, Vardhmaan Jain, Isaac Acquah, Safi U. Khan, Tarang Parekh, Mohamad Taha, Salim S. Virani, Michael J. Blaha, Khurram Nasir, Zulqarnain Javed Zulqarnain Javed
Office of the Provost
Objective: To assess the association between cardiovascular risk factor (CRF) profile and premature all-cause and cardiovascular disease (CVD) mortality among US adults (age < 65).
Methods: This study used data from the National Health Interview Survey from 2006 to 2014, linked to the National Death Index for non-elderly adults aged < 65 years. A composite CRF score (range = 0-6) was calculated, based on the presence or absence of six established cardiovascular risk factors: hypertension, diabetes, hypercholesterolemia, smoking, obesity, and insufficient physical activity. CRF profile was defined as "Poor" (≥ 3 risk factors), "Average" (1-2), or "Optimal" (0 risk factors). Age-adjusted mortality rates (AAMR) were reported across CRF profile categories, separately for all-cause and CVD mortality. Cox proportional hazard models were used to evaluate the association between CRF profile and all-cause and CVD mortality.
Results: Among 195,901 non-elderly individuals (mean age: 40.4 ± 13.0, 50% females and 70% Non-Hispanic (NH) White adults), 24.8% had optimal, 58.9% average, and 16.2% poor CRF profiles, respectively. Participants with poor CRF profile were more likely to be NH Black, have lower educational attainment and lower income compared to those with …
Prediction Of Major Adverse Cardiac Events In The Emergency Department Using An Artificial Neural Network With A Systematic Grid Search, Ahmed Raheem Buksh, Nadeem Ullah Khan, Rida Jawed, Shahan Waheed, Musa Karim
Prediction Of Major Adverse Cardiac Events In The Emergency Department Using An Artificial Neural Network With A Systematic Grid Search, Ahmed Raheem Buksh, Nadeem Ullah Khan, Rida Jawed, Shahan Waheed, Musa Karim
Department of Emergency Medicine
Background: The aim of our research was to design and evaluate an Artificial Neural Network (ANN) model using a systemic grid search for the early prediction of major adverse cardiac events (MACE) among patients presenting to the triage of an emergency department.
Methods: This is a single-center, cross-sectional study using electronic health records from January 2017 to December 2020. The research population consists of adults coming to our emergency department triage at Aga Khan University Hospital. The MACE during hospitalization was the main outcome. To enhance the architecture of an ANN using triage data, we used a systematic grid search …
Social Determinants Of Health And Disparities In Hypertension And Cardiovascular Diseases, Abhishek Chaturvedi, Anqi Zhu, Naga Vaishnav Gadela, Dorairaj Prabhakaran, Tazeen Jafar
Social Determinants Of Health And Disparities In Hypertension And Cardiovascular Diseases, Abhishek Chaturvedi, Anqi Zhu, Naga Vaishnav Gadela, Dorairaj Prabhakaran, Tazeen Jafar
Department of Medicine
High blood pressure causes over 10 million preventable deaths annually globally. Populations in low- and middle-income countries suffer the most, experiencing increased uncontrolled blood pressure and cardiovascular disease (CVD) deaths. Despite improvements in high-income countries, disparities persist, notably in the United States, where Black individuals face up to 4× higher CVD mortality than White individuals. Social determinants of health encompass complex, multidimensional factors linked to an individual's birthplace, upbringing, activities, residence, workplaces, socioeconomic and environmental structures, and significantly affect health outcomes, including hypertension and CVD. This review explored how social determinants of health drive disparities in hypertension and related CVD …
In Memoriam: Prof. Dr. Rer. Nat. Jeanette Erdmann, Pashmina Wiqar Shah, Satwat Hashmi, Tobias Reinberger, Nadine Odenthal, Luis Eichelmann, Daria Kosenko, Ilyas Ahmad, Jaafar Al-Hasani, Till Joscha Demal, Zouhair Aherrahrou
In Memoriam: Prof. Dr. Rer. Nat. Jeanette Erdmann, Pashmina Wiqar Shah, Satwat Hashmi, Tobias Reinberger, Nadine Odenthal, Luis Eichelmann, Daria Kosenko, Ilyas Ahmad, Jaafar Al-Hasani, Till Joscha Demal, Zouhair Aherrahrou
Department of Biological & Biomedical Sciences
No abstract provided.
Closing The Gaps In Care Of Dyslipidemia: Revolutionizing Management With Digital Health And Innovative Care Models, Samuel J. Apple, Rachel Clark, Jonathan Daich, Macarena Lopez Gonzalez, Robert J. Ostfeld, Peter P. Toth, Vera Bittner, Seth S. Martin, Jamal S. Rana, Salim S. Virani
Closing The Gaps In Care Of Dyslipidemia: Revolutionizing Management With Digital Health And Innovative Care Models, Samuel J. Apple, Rachel Clark, Jonathan Daich, Macarena Lopez Gonzalez, Robert J. Ostfeld, Peter P. Toth, Vera Bittner, Seth S. Martin, Jamal S. Rana, Salim S. Virani
Office of the Provost
Although great progress has been made in the diagnostic and treatment options for dyslipidemias, unawareness, underdiagnosis and undertreatment of these disorders remain a significant global health concern. Growth in digital applications and newer models of care provide novel tools to improve the management of chronic conditions such as dyslipidemia. In this review, we discuss the evolving landscape of lipid management in the 21st century, current treatment gaps and possible solutions through digital health and new models of care. Our discussion begins with the history and development of value-based care and the national establishment of quality metrics for various chronic conditions. …
Beyond The Basics: Unraveling The Complexity Of Coronary Artery Calcification, Satwat Hashmi, Pashmina Wiqar Shah, Zouhair Aherrahrou, Elena Aikawa, Rédouane Aherrahrou
Beyond The Basics: Unraveling The Complexity Of Coronary Artery Calcification, Satwat Hashmi, Pashmina Wiqar Shah, Zouhair Aherrahrou, Elena Aikawa, Rédouane Aherrahrou
Department of Biological & Biomedical Sciences
Coronary artery calcification (CAC) is mainly associated with coronary atherosclerosis, which is an indicator of coronary artery disease (CAD). CAC refers to the accumulation of calcium phosphate deposits, classified as micro- or macrocalcifications, that lead to the hardening and narrowing of the coronary arteries. CAC is a strong predictor of future cardiovascular events, such as myocardial infarction and sudden death. Our narrative review focuses on the pathophysiology of CAC, exploring its link to plaque vulnerability, genetic factors, and how race and sex can affect the condition. We also examined the connection between the gut microbiome and CAC, and the impact …
Pm2.5 And Cardiovascular Diseases: State-Of-The-Art Review, Chayakrit Krittanawong, Yusuf Kamran Qadeer, Richard B. Hayes, Zhen Wang, George D. Thurston, Salim S. Virani, Carl J. Lavie
Pm2.5 And Cardiovascular Diseases: State-Of-The-Art Review, Chayakrit Krittanawong, Yusuf Kamran Qadeer, Richard B. Hayes, Zhen Wang, George D. Thurston, Salim S. Virani, Carl J. Lavie
Office of the Provost
Air pollution, especially exposure to particulate matter 2.5 (PM2.5), has been associated with an increase in morbidity and mortality around the world. Specifically, it seems that PM2.5 promotes the development of cardiovascular risk factors such as hypertension and atherosclerosis, while being associated with an increased risk of cardiovascular diseases, including myocardial infarction (MI), stroke, heart failure, and arrhythmias. In this review, we seek to elucidate the pathophysiological mechanisms by which exposure to PM2.5 can result in adverse cardiovascular outcomes, in addition to understanding the link between exposure to PM2.5 and cardiovascular events. It is hypothesized that PM2.5 functions via 3 …
Pseudocystic Myxoid Liposarcoma Of The Posterior Chest Wall - A Rare Case Report, Saad Shakil, Sareema Eman Akhtar, Mahum Zaidi, Rizwan Ajmal, Abdulla K. Alsubai, Rahul Ramtohul, Absam Akbar, Aysa Tabassi, Aylin Tabassi, Talal Almas
Pseudocystic Myxoid Liposarcoma Of The Posterior Chest Wall - A Rare Case Report, Saad Shakil, Sareema Eman Akhtar, Mahum Zaidi, Rizwan Ajmal, Abdulla K. Alsubai, Rahul Ramtohul, Absam Akbar, Aysa Tabassi, Aylin Tabassi, Talal Almas
Medical College Documents
Introduction and importance: Liposarcoma (LPS) is a common soft-tissue sarcoma predominantly diagnosed in adults, arising from malignant adipose cells. Among its various subtypes, myxoid LPS (MLPS) stands out as the second most frequent, accounting for ~30% of all LPS cases. This particular subtype typically manifests in males between the ages of 40 and 50 and is commonly found in the lower extremities. Although rare, MLPS may also occur in the head, neck, and infrequently in the back. Chest wall LPS cases are also sparsely reported.
Case presentation: In this report, we present a case of MLPS in a 69-year-old male …