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Full-Text Articles in Medicine and Health Sciences

Psychosocial Risk Factors And Cardiovascular Disease And Death In A Population-Based Cohort From 21 Low-, Middle-, And High-Income Countries, Ailiana Santosa, Annika Rosengren, Chinthanie Ramasundarahettige, Sumathy Rangarajan, Jephat Chifamba, Scott A. Lear, Paul Poirier, Karen E. Yeates, Rita Yusuf, Romaina Iqbal Dec 2021

Psychosocial Risk Factors And Cardiovascular Disease And Death In A Population-Based Cohort From 21 Low-, Middle-, And High-Income Countries, Ailiana Santosa, Annika Rosengren, Chinthanie Ramasundarahettige, Sumathy Rangarajan, Jephat Chifamba, Scott A. Lear, Paul Poirier, Karen E. Yeates, Rita Yusuf, Romaina Iqbal

Community Health Sciences

Importance: Stress may increase the risk of cardiovascular disease (CVD). Most studies on stress and CVD have been conducted in high-income Western countries, but whether stress is associated with CVD in other settings has been less well studied.
Objective: To investigate the association of a composite measure of psychosocial stress and the development of CVD events and mortality in a large prospective study involving populations from 21 high-, middle-, and low-income countries across 5 continents.
Design, setting, and participants: This population-based cohort study used data from the Prospective Urban Rural Epidemiology study, collected between January 2003 and March 2021. Participants …


Clinical Outcomes Of Physiologically-Guided Revascularisation, Nasir Rahman, Ghufran Adnan, Awais Farhad, Jamshed Ali, Ihsan Ullah Nov 2021

Clinical Outcomes Of Physiologically-Guided Revascularisation, Nasir Rahman, Ghufran Adnan, Awais Farhad, Jamshed Ali, Ihsan Ullah

Section of Cardiology

Objective: To assess the clinical outcomes of revascularisation based on fractional flow reserve (FFR) and/or instantaneous wave-free ratio (iFR).
Study design: Descriptive study.
Place and duration of study: Department of Medicine, The Aga Khan University Hospital, Karachi from January 2012 to January 2020.
Methodology: A cohort of patients having moderate to severe coronary stenosis, undergoing coronary revascularisation based on invasive physiological assessment (FFR or iFR) were assessed. The participants were divided into the revascularisation-deferred group and the revascularization-performed group, based on the physiological results. Cox-proportional hazard model building was done, using a stepwise approach by assessing all plausible interactions and …


Features On Cardiac Magnetic Resonance Imaging And Accuracy Of Echocardiographic Findings For Diagnosing Constrictive Pericarditis, Salik Ur Rehman Iqbal, Fateh Ali Tipoo Sultan Nov 2021

Features On Cardiac Magnetic Resonance Imaging And Accuracy Of Echocardiographic Findings For Diagnosing Constrictive Pericarditis, Salik Ur Rehman Iqbal, Fateh Ali Tipoo Sultan

Section of Cardiology

Constrictive pericarditis is a rare disease with a difficult diagnosis. Cardiac magnetic resonance (CMR) imaging data of Aga Khan University Hospital from January 2011 to March 2020 was retrospectively reviewed and patients with the diagnosis of constrictive pericarditis were included. A total of 22 patients were included with the mean age of 46±16 years and majority 17(77%) were male. The most common findings on transthoracic echo were significant respiratory variation in mitral and tricuspid inflow velocities in 20(91%), and septal annular e'>9 in 10 (86%). The most common finding on CMR was respiratory septal shift in 22(100%), followed by …


Covid-19 Bbibp-Corv Vaccine And Transient Heart Block - A Phenomenon By Chance Or A Possible Correlation - A Case Report, Pirbhat Shams, Jamshed Ali, Sheema Saadia, Aamir Hameed Khan, Fateh Ali Tipoo Sultan, Javed Tai Nov 2021

Covid-19 Bbibp-Corv Vaccine And Transient Heart Block - A Phenomenon By Chance Or A Possible Correlation - A Case Report, Pirbhat Shams, Jamshed Ali, Sheema Saadia, Aamir Hameed Khan, Fateh Ali Tipoo Sultan, Javed Tai

Section of Cardiology

Importance: Bradyarrhythmia during COVID19 illness carries prognostic significance. Electrophysiological side effects of COVID19 vaccine remain largely unknown. It is imperative to report nature of cardiovascular side effects of the vaccine.
Case presentation: An 80 years-old-man presented with complains of dizziness, trepidation and shortness of breath following his first shot of COVID-19 BBIBP-CorV (Sino-pharm). ECG on arrival showed 2:1 atrioventricular block with an underlying old left bundle branch block. The AV block changed into Mobitz type-I over the course of next 2 days and into a sinus 1:1 conduction on fourth day of presentation. However, our patient underwent permanent pacemaker implantation …


Hepatocellular Carcinoma With Extrahepatic Blood Supply From Right Renal Artery, Amir Humza Sohail, Ahmad Musa, Muhammad Salman Khan, Hassan Raza Hashmi, Basit Salam, Collin E M. Brathwaite Oct 2021

Hepatocellular Carcinoma With Extrahepatic Blood Supply From Right Renal Artery, Amir Humza Sohail, Ahmad Musa, Muhammad Salman Khan, Hassan Raza Hashmi, Basit Salam, Collin E M. Brathwaite

Department of Radiology

Extrahepatic blood supply is seen in around 17-27% of hepatocellular carcinoma lesions. Evidence suggests that this extrahepatic supply most commonly originates from a right intercostal artery (70-83%) followed by left intercostal, omental and right renal arteries. Thus a comprehensive knowledge of variations in standard vascular anatomy and cognisance of factors influencing or predicting extrahepatic blood supply in HCC is instrumental in ensuring the success of surgical and interventional procedures. We present the unusual case of a 66-year-old male with HCC in Segment I of the liver with aberrant blood supply from the right renal artery in the absence of any …


Endoleaks: Current Concepts And Treatments - A Narrative Review, Zia Ur Rehman Sep 2021

Endoleaks: Current Concepts And Treatments - A Narrative Review, Zia Ur Rehman

Department of Surgery

Endoleaks are the most common complications following endovascular aneurysm repair. Depending upon their origin, there are five types of endoleaks, types I-V, which can also be classified as direct and indirect endoleaks. Direct endoleaks (type I and III) have higher risk of aneurysm rupture due to rapid sac expansion, and require immediate correction. Indirect endoleaks ( type II, IV and V) have a relatively benign course compared to direct endoleaks. Most of them resolve with time and very few need interventions upon sac enlargement. Type V endotension is a special situation where there is sac enlargement despite no demonstrable endoleak. …


Cardiovascular Fellow-In-Training Feedback On Virtual And Simulator-Based Learning Experience During Covid-19 Pandemic In A Low To Middle Income Country - A Cross-Sectional Study, Pirbhat Shams, Intisar Ahmed, Hunaina Shahab, Zehra Kadani, Aisal Khan, Marvi Shams, Yawer Saeed, Syedah Saira Bokhari, Aamir Hameed Khan Sep 2021

Cardiovascular Fellow-In-Training Feedback On Virtual And Simulator-Based Learning Experience During Covid-19 Pandemic In A Low To Middle Income Country - A Cross-Sectional Study, Pirbhat Shams, Intisar Ahmed, Hunaina Shahab, Zehra Kadani, Aisal Khan, Marvi Shams, Yawer Saeed, Syedah Saira Bokhari, Aamir Hameed Khan

Section of Cardiology

Background: COVID-19 pandemic has introduced us to a greater need of virtual learning platforms and has resulted in less clinical exposure for fellows-in-training. Virtual and simulator-based learning is not widely available in LMIC. It is imperative to analyze feedback of CV fellow-in-training regarding this mode of learning before large scale implementation.
Methodology: This was an observational study conducted between July-August 2020. A multicentered survey was conducted. Survey questionnaire was disseminated to FIT (fellow-in-training) via Google Forms. The questionnaire contained a total of 24 questions about virtual and simulator-based learning during the pandemic.
Results: A total of 68 FIT responded to …


Comparative Trends In Ischemic Heart Disease Admissions, Presentation And Outcomes Due To The Covid-19 Pandemic: First Insights From A Tertiary Medical Center In Pakistan, Ali Aahil Noorali, Humza Thobani, Shiraz Hashmi, Sara Iqbal, Asma A H. Merchant, Mian Arsam Haroon, Sardar Shahmir Babar Chauhan, Saad Mallick, Nida Zahid, Yasir Khan, Osman Faheem, Saulat Fatimi Aug 2021

Comparative Trends In Ischemic Heart Disease Admissions, Presentation And Outcomes Due To The Covid-19 Pandemic: First Insights From A Tertiary Medical Center In Pakistan, Ali Aahil Noorali, Humza Thobani, Shiraz Hashmi, Sara Iqbal, Asma A H. Merchant, Mian Arsam Haroon, Sardar Shahmir Babar Chauhan, Saad Mallick, Nida Zahid, Yasir Khan, Osman Faheem, Saulat Fatimi

Department of Medicine

Introduction: COVID-19 has manifested a striking disarray in healthcare access and provision, particularly amongst patients presenting with life-threatening ischemic heart disease (IHD). The paucity of data from low-middle income countries has limited our understanding of the consequential burden in the developing world. We aim to compare volumes, presentations, management strategies, and outcomes of IHD amongst patients presenting in the same calendar months before and during the COVID-19 pandemic.
Methods: We conducted a retrospective cross-sectional analysis at the Aga Khan University Hospital, one of the premier tertiary care centres in Pakistan. Data were collected on all adult patients (>18 years) …


Comparing Sensitivity And Specificity Of Pacemaker Id Application And Cardiac Rhythm Management Device-Finder Application In Identifying Cardiac Implantable Electronic Device Manufacturer Using Chest Radiograph - An Observational Study, Pirbhat Shams, Muhammad Mehdi, Jamshed Ali, Intisar Ahmed, Sheema Saadia, Sameen Iqbal, Aamir Hameed Khan, Yawer Saeed Aug 2021

Comparing Sensitivity And Specificity Of Pacemaker Id Application And Cardiac Rhythm Management Device-Finder Application In Identifying Cardiac Implantable Electronic Device Manufacturer Using Chest Radiograph - An Observational Study, Pirbhat Shams, Muhammad Mehdi, Jamshed Ali, Intisar Ahmed, Sheema Saadia, Sameen Iqbal, Aamir Hameed Khan, Yawer Saeed

Section of Cardiology

Background: Smartphone-based applications to identify cardiac implantable electronic devices (CIED) are extremely useful in circumstances, where urgent device interrogation is needed, and a device identification card is not available. Few studies have provided insights regarding the utility of these applications. We have studied two widely available applications i.e., Pacemaker ID app (PMIDa) or Cardiac Rhythm Management Device-Finder (CRMD-f) to identify device manufacturers in CIEDs.
Methods: 547 patients who underwent CIED implantation from the year 2016-2020 in our institute were enrolled. There were 438 Medtronic and 109 St. Jude's devices. All chest radiographs were de-identified and resized into 225*225 pixels focusing …


Detection Of Subclinical Rheumatic Heart Disease In Children Using A Deep Learning Algorithm On Digital Stethoscope: A Study Protocol, Fatima Ali, Babar Hasan, Huzaifa Ahmad, Zahra Hoodbhoy, Zainab Bhuriwala, Muhammad Hanif, Shahab U. Ansari, Devyani Chowdhury Aug 2021

Detection Of Subclinical Rheumatic Heart Disease In Children Using A Deep Learning Algorithm On Digital Stethoscope: A Study Protocol, Fatima Ali, Babar Hasan, Huzaifa Ahmad, Zahra Hoodbhoy, Zainab Bhuriwala, Muhammad Hanif, Shahab U. Ansari, Devyani Chowdhury

Department of Paediatrics and Child Health

Introduction: Rheumatic heart diseases (RHDs) contribute significant morbidity and mortality globally. To reduce the burden of RHD, timely initiation of secondary prophylaxis is important. The objectives of this study are to determine the frequency of subclinical RHD and to train a deep learning (DL) algorithm using waveform data from the digital auscultatory stethoscope (DAS) in predicting subclinical RHD.
Methods and analysis: We aim to recruit 1700 children from a group of schools serving the underprivileged over a 12-month period in Karachi (Pakistan). All consenting students within the age of 5-15 years with no underlying congenital heart disease will be eligible …


The Ability And Safety Of Community-Based Health Workers To Safely Initiate Lifesaving Therapies For Pre-Eclampsia In Ogun State, Nigeria: An Analysis Of 260 Community Treatments With Mgso4 And/Or Methyldopa, Akinmade A. Adepoju, Marianne Vidler, Adebayo A. Akadri, Ebun Jaiyesimi, Chimaobi C. Nwankpa, Oluwafayokemi O. Odubena, Sumedha Sharma, Larry Li, Domena Tu, Zulfiqar Ahmed Bhutta Aug 2021

The Ability And Safety Of Community-Based Health Workers To Safely Initiate Lifesaving Therapies For Pre-Eclampsia In Ogun State, Nigeria: An Analysis Of 260 Community Treatments With Mgso4 And/Or Methyldopa, Akinmade A. Adepoju, Marianne Vidler, Adebayo A. Akadri, Ebun Jaiyesimi, Chimaobi C. Nwankpa, Oluwafayokemi O. Odubena, Sumedha Sharma, Larry Li, Domena Tu, Zulfiqar Ahmed Bhutta

Woman and Child Health

Objectives: To evaluate community-based health workers' ability to identify cases of hypertension in pregnancy, safely deliver methyldopa and magnesium sulphate and make referrals when appropriate.
Study design: This was part of Nigeria Community-Level Interventions for Pre-eclampsia (CLIP) cluster randomized controlled trial (NCT01911494). Community-based Health Workers (CHW) recruited pregnant women from five Local Government Areas (clusters) and used mobile health aid for clinical assessment of pre-eclampsia.
Main outcome measures: The primary outcome was the number of adverse events that occurred after the administration of magnesium sulphate and/or methyldopa to pregnant women by CHWs.
Findings: Of 8790 women receiving mobile …


Anaesthetic Management Of Tracheal Injury Following Blunt Neck Trauma: An Unusual Late Presentation, Muhammad Saad Yousuf, Mohammad Bin Pervez, Saulat Fatimi, Khalid Samad Aug 2021

Anaesthetic Management Of Tracheal Injury Following Blunt Neck Trauma: An Unusual Late Presentation, Muhammad Saad Yousuf, Mohammad Bin Pervez, Saulat Fatimi, Khalid Samad

Department of Anaesthesia

Tracheal injuries, following blunt neck trauma, are life-threatening surgical emergencies with high risk of mortality. A high index of suspicion is necessary to avoid missing an occult injury because delays in diagnosis and definitive treatment are associated with poorer outcomes. We, herein, report a case of a 28-year man who presented in Emergency Department 15 days after blunt neck trauma from an accident involving electric cable. Anaesthetic challenges, airway management and importance of effective close loop communication, during repair of complex tracheal reconstruction, will be discussed in this case report.


The Relation Of Abo Blood Group To The Severity Of Coronavirus Disease: A Cross-Sectional Study From A Tertiary Care Hospital In Karachi, Fazal Ur Rehman, Syed Furrukh Omair, Fatima Memon, Bakhtawar J. Rind, Danish Ahmed Memon, Syed Ahsan Ali, Bilal Ahmed, Naureen Ali Jul 2021

The Relation Of Abo Blood Group To The Severity Of Coronavirus Disease: A Cross-Sectional Study From A Tertiary Care Hospital In Karachi, Fazal Ur Rehman, Syed Furrukh Omair, Fatima Memon, Bakhtawar J. Rind, Danish Ahmed Memon, Syed Ahsan Ali, Bilal Ahmed, Naureen Ali

Section of Internal Medicine

Background: Blood groups are considered to have an impact on the occurrence and severity of coronavirus disease. While among Chinese and Caucasian, blood group O individuals were less and group A were more likely to have severe disease and mortality, data on South Asians aren’t available.
Objective: This study aimed to find out the association of disease severity with blood group among coronavirus disease 2019 (COVID-19) patients.
Materials and methodology: Data were collected on a predesigned questionnaire containing details of patient demographics, medical comorbidities, clinical presentation, and laboratory parameters. Multiple logistic regression was used to determine the association of the …


Prognostic Significance Of Ischaemic Electrocardiographic Changes During Stress Testing In Patients With Normal Nuclear Myocardial Perfusion Imaging, Ghufran Adnan, Fateh Ali Tipoo Sultan, Umaira Alauddin, Maria Ali Khan Jul 2021

Prognostic Significance Of Ischaemic Electrocardiographic Changes During Stress Testing In Patients With Normal Nuclear Myocardial Perfusion Imaging, Ghufran Adnan, Fateh Ali Tipoo Sultan, Umaira Alauddin, Maria Ali Khan

Section of Cardiology

Objective: To evaluate cardiovascular outcomes in patients with normal nuclear myocardial perfusion imaging, but ischaemic electrocardiogram changes during pharmacological or exercise stress tests.
Methods: The retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised data of patients who underwent either pharmacological or exercise stress myocardial perfusion scan and had a normal scan with ischaemic electrocardiogram changes between January 2013 and December 2014. All cardiac events, including angina, myocardial infarction, heart failure, coronary revascularisation and cardiac death, as well as non-cardiac deaths were noted. Data was analysed using STATA 14.2.
Results: Of the 2770 patients whose data …


Economic And Cost-Effectiveness Analysis Of The Community-Level Interventions For Pre-Eclampsia (Clip) Trials In India, Pakistan And Mozambique, Jeffrey N. Bone, Asif R. Khowaja, Marianne Vidler, Beth A. Payne, Mrutyunjaya B. Bellad, Shivaprasad S. Goudar, Ashalata A. Mallapur, Khatia Munguambe, Rahat Qureshi, Zulfiqar Ahmed Bhutta May 2021

Economic And Cost-Effectiveness Analysis Of The Community-Level Interventions For Pre-Eclampsia (Clip) Trials In India, Pakistan And Mozambique, Jeffrey N. Bone, Asif R. Khowaja, Marianne Vidler, Beth A. Payne, Mrutyunjaya B. Bellad, Shivaprasad S. Goudar, Ashalata A. Mallapur, Khatia Munguambe, Rahat Qureshi, Zulfiqar Ahmed Bhutta

Woman and Child Health

Background: The Community-Level Interventions for Pre-eclampsia (CLIP) trials (NCT01911494) in India, Pakistan and Mozambique (February 2014-2017) involved community engagement and task sharing with community health workers for triage and initial treatment of pregnancy hypertension. Maternal and perinatal mortality was less frequent among women who received ≥8 CLIP contacts. The aim of this analysis was to assess the incremental costs and cost-effectiveness of the CLIP intervention overall in comparison to standard of care, and by PIERS (Pre-eclampsia Integrated Estimate of RiSk) On the Move (POM) mobile health application visit frequency.
Methods: Included were all women enrolled in the three …


Smokeless Tobacco Initiation, Use And Cessation In South Asia: A Qualitative Assessment, Faraz Siddiqui, Ray Croucher Ray Croucher, Fayaz Ahmad, Zarak Hussain Ahmed, Roshani Babu, Linda Bauld, Fariza Fieroze, Rumana Huque, Maira Mubashir, Narjis Rizvi Apr 2021

Smokeless Tobacco Initiation, Use And Cessation In South Asia: A Qualitative Assessment, Faraz Siddiqui, Ray Croucher Ray Croucher, Fayaz Ahmad, Zarak Hussain Ahmed, Roshani Babu, Linda Bauld, Fariza Fieroze, Rumana Huque, Maira Mubashir, Narjis Rizvi

Community Health Sciences

Introduction: Smokeless tobacco (ST) is a significant South Asian public health problem. This paper reports a qualitative study of a sample of South Asian ST users.
Methods: Interviews, using a piloted topic guide, with 33 consenting, urban dwelling adult ST users explored their ST initiation, continued use and cessation attempts. Framework data analysis was used to analyse country specific data before a thematic cross-country synthesis was completed.
Results: Participants reported long term ST use and high dependency. All reported strong cessation motivation and multiple failed attempts because of ease of purchasing ST, tobacco dependency and lack of institutional support.
Conclusions: …


Periprocedural And In-Hospital Outcomes Among Percutaneous Coronary Intervention In Saphenous Vein Graft: A Retrospective Observational Study At A Tertiary Care Hospital In South Asian Country, Abdul Baqi, Sheema Saadia Apr 2021

Periprocedural And In-Hospital Outcomes Among Percutaneous Coronary Intervention In Saphenous Vein Graft: A Retrospective Observational Study At A Tertiary Care Hospital In South Asian Country, Abdul Baqi, Sheema Saadia

Section of Cardiology

Background: Saphenous vein graft (SVG) may occlude either early or several months to years after coronary artery bypass graft (CABG) surgery. Doing re-do CABG surgery is associated with higher complication and mortality rate as compared to percutaneous coronary intervention (PCI) in SVG. However, PCI of SVG is associated with more periprocedural and in-hospital complications as compared to PCI of native coronary arteries. Due to the scarcity of local data in this regard, this study was designed to estimate the periprocedural and in-hospital outcomes among PCI in SVG.
Objectives: We aim to study the periprocedural and in-hospital outcomes among patients who …


Implementation And Evaluation Of Employee Health And Wellness Program Using Re-Aim Framework, Unab I. Khan, Asra Qureshi, Karishma Lal, Shehreen Ali, Arshnoor Barkatalia, Shamim Nayani Apr 2021

Implementation And Evaluation Of Employee Health And Wellness Program Using Re-Aim Framework, Unab I. Khan, Asra Qureshi, Karishma Lal, Shehreen Ali, Arshnoor Barkatalia, Shamim Nayani

Department of Family Medicine

Purpose: To describe the design, implementation, and evaluation of an employer-sponsored health screening program [Employee Health and Wellness Program (EHWP)] in an academic healthcare system in Pakistan.
Design/methodology/approach: One-year after implementation, we use the RE-AIM framework (Reach, Effectiveness, Adoption, Implementation and Maintenance) to evaluate and report participant- and organizational-level indicators of success.
Findings: Of 5286 invited employees, 4523 (86%) completed blood work and 1809 (34%) completed health risk assessment (Reach). Of the 915 (51%) who required referrals, 3% were referred for new diagnoses of diabetes, hepatitis C or severe anemia; 63% for elevated 10- year risk of cardiometabolic diseases (cardiovascular …


Performance And Determinants Of Serum Creatinine And Cystatin C-Based Gfr Estimating Equations In South Asians, Yeli Wang, Andrew S. Levey, Lesley A. Inker, Saleem Jessani, Rasool Bux, Zainab Samad, Ali Raza Khan, Amy B. Karger, John C. Allen, Tazeen H. Jafar Apr 2021

Performance And Determinants Of Serum Creatinine And Cystatin C-Based Gfr Estimating Equations In South Asians, Yeli Wang, Andrew S. Levey, Lesley A. Inker, Saleem Jessani, Rasool Bux, Zainab Samad, Ali Raza Khan, Amy B. Karger, John C. Allen, Tazeen H. Jafar

Community Health Sciences

Introduction: The creatinine-based Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) estimated glomerular filtration rate (eGFR) equation was calibrated for the general Pakistan population (eGFRcr-PK) to eliminate bias and improve accuracy. Cystatin C-based CKD-EPI equations (eGFRcys and eGFRcr-cys) have not been assessed in this population, and non-GFR determinants of cystatin C are unknown.
Methods: We assessed eGFRcys, eGFRcr-cys, and non-GFR determinants of cystatin C in a cross-sectional study of 557 participants (≥40 years of age) from Pakistan. We compared bias (median difference in measured GFR [mGFR] and eGFR), precision (interquartile range [IQR] of differences), accuracy (percentage of eGFR within 30% of mGFR), …


Interplay Between Oxidative Stress, Sirt1, Reproductive And Metabolic Functions, Faiza Alam, Hareem Syed, Sofia Amjad, Mukhtiar Baig, Taseer Ahmed Khan, Rehana Rehman Mar 2021

Interplay Between Oxidative Stress, Sirt1, Reproductive And Metabolic Functions, Faiza Alam, Hareem Syed, Sofia Amjad, Mukhtiar Baig, Taseer Ahmed Khan, Rehana Rehman

Department of Biological & Biomedical Sciences

Silent information Regulators (SIRT1) gene stimulates antioxidants' expression, repairs cells damaged by oxidative stress (OS), and prevents the cells' dysfunction. In particular, the role of different Sirtuins, particularly SIRT1 in reproduction, has been widely studied over the past decade. Decreased SIRT 1 causes mitochondrial dysfunction by increasing Reactive Oxygen Species (ROS), lipid peroxidation, and DNA damage in both male and female gametes (Sperms and Oocytes), leading to infertility. In the female reproductive system, SIRT1 regulates proliferation and apoptosis in granulosa cells (GCs), and its down-regulation is associated with a reduced ovarian reserve. SIRT1 also modulates the stress response to OS …


Levels And Predictors Of Self-Care Among Patients With Hypertension In Pakistan, Khairulnissa Ajani, Ambreen Gowani, Raisa B. Gul, Pammla Petrucka Mar 2021

Levels And Predictors Of Self-Care Among Patients With Hypertension In Pakistan, Khairulnissa Ajani, Ambreen Gowani, Raisa B. Gul, Pammla Petrucka

School of Nursing & Midwifery

Background: Globally, hypertension is the leading non-communicable disease and strongest predictor of cardiovascular diseases. To mitigate and prevent hypertension-related complications, self-care behavior adaptation has proven to be vital. In this study, we examined the six clinically prescribed levels of self-care as prescribed by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation and Treatment of High Blood Pressure and its predictors among a select sample of hypertensive individuals in Karachi, Pakistan.
Methods: This study reports the cross-sectional survey of a sequential mixed method study which assessed the levels of self-care of hypertensive individuals residing in an urban …


Patterns Of Left Ventricular Hypertrophy And Late Gadolinium Enhancement On Cardiac Mri In Patients With Hypertrophic Cardiomyopathy And Their Prognostic Significance - An Experience From A South Asian Country, Fateh Ali Tipoo Sultan, Sheema Saadia Mar 2021

Patterns Of Left Ventricular Hypertrophy And Late Gadolinium Enhancement On Cardiac Mri In Patients With Hypertrophic Cardiomyopathy And Their Prognostic Significance - An Experience From A South Asian Country, Fateh Ali Tipoo Sultan, Sheema Saadia

Section of Cardiology

Objectives: Cardiac magnetic resonance (CMR) imaging is very pertinent in the diagnosis and risk stratification of patients with hypertrophic cardiomyopathy (HCM). We aimed to assess the patterns of left ventricular (LV) hypertrophy, late gadolinium enhancement (LGE), and their prognostic significance in HCM patients in Pakistani population, as no such data are available from Pakistan.
Material and methods: This was a retrospective, single center study. All patients who had confirmed diagnosis of HCM on CMR at Aga Khan University Hospital during the period of 2011-2019 were identified and included in the study.
Results: A total of 74 patients were included with …


Structural And Functional Properties Of Subsidiary Atrial Pacemakers In A Goat Model Of Sinus Node Disease, Luca Soattin, Zoltan Borbas, Jane Caldwell, Brian Prendergast, Akbar Vohra, Yawer Saeed, Andreas Hoschtitzky, Joseph Yanni, Andrew Atkinson, Sunil Jit Logantha Mar 2021

Structural And Functional Properties Of Subsidiary Atrial Pacemakers In A Goat Model Of Sinus Node Disease, Luca Soattin, Zoltan Borbas, Jane Caldwell, Brian Prendergast, Akbar Vohra, Yawer Saeed, Andreas Hoschtitzky, Joseph Yanni, Andrew Atkinson, Sunil Jit Logantha

Section of Cardiology

Background: The sinoatrial/sinus node (SAN) is the primary pacemaker of the heart. In humans, SAN is surrounded by the paranodal area (PNA). Although the PNA function remains debated, it is thought to act as a subsidiary atrial pacemaker (SAP) tissue and become the dominant pacemaker in the setting of sinus node disease (SND). Large animal models of SND allow characterization of SAP, which might be a target for novel treatment strategies for SAN diseases.
Methods: A goat model of SND was developed (n = 10) by epicardially ablating the SAN and validated by mapping of emergent SAP locations through …


Hypoglossal Nerve Paraganglioma Depicting As Glomus Tumor Of Neck, Zaid Ahmed Shamsi, Fareed Ahmed Shaikh, Muhammad Wasif, Mustafa Belal Hafeez Chaudhry, Nadeem Ahmed Siddiqui, Ziad Sophie Mar 2021

Hypoglossal Nerve Paraganglioma Depicting As Glomus Tumor Of Neck, Zaid Ahmed Shamsi, Fareed Ahmed Shaikh, Muhammad Wasif, Mustafa Belal Hafeez Chaudhry, Nadeem Ahmed Siddiqui, Ziad Sophie

Department of Surgery

Introduction: Paraganglioma are infrequent neuroendocrine tumors that are most commonly found in the carotid body, ganglia of the vagus, jugular and tympanic nerve. Very rarely they can involve other cranial nerves outside the cranial cavity, we present one such case of hypoglossal nerve paraganglioma in neck.
Case report: A 48 years old male presented with 1-month history of right sided stroke and aphasia. Ultrasonography of neck revealed a highly vascular mass on the right side of the neck. CT angiogram confirmed a highly vascular mass arising above the carotid bifurcation. With the working diagnosis of Glomus tumor, he underwent right …


Proximal Subclavian Artery Injury Managed Without Performing Median Sternotomy: A Case Report, Zia Ur Rehman Mar 2021

Proximal Subclavian Artery Injury Managed Without Performing Median Sternotomy: A Case Report, Zia Ur Rehman

Department of Surgery

No abstract provided.


Off-Label Use Of Direct Oral Anticoagulants In Patients Receiving Surgical Mechanical And Bioprosthetic Heart Valves, Ankur Kalra, Sajjad Raza, Baqir Hasan Jafry, Harley E. King, Joseph A. Lahorra, Lars G. Svensson, Samir R. Kapadia Mar 2021

Off-Label Use Of Direct Oral Anticoagulants In Patients Receiving Surgical Mechanical And Bioprosthetic Heart Valves, Ankur Kalra, Sajjad Raza, Baqir Hasan Jafry, Harley E. King, Joseph A. Lahorra, Lars G. Svensson, Samir R. Kapadia

Medical College Documents

This cohort study assesses direct oral anticoagulant use in patients with surgical prosthetic heart valves in the United States and evaluates differences in preoperative and postoperative profiles in patients discharged while receiving direct oral anticoagulant vs warfarin.


Hypertension Guidelines And Coronary Artery Calcification Among South Asians: Results From Masala And Mesa, Jaideep Patel, Anurag Mehta, Mahmoud Al Rifai, Michael J. Blaha, Khurram Nasir, John W. Mcevoy, Ambarish Pandey, Alka M. Kanaya, Namratha R. Kandula, Salim S. Virani Feb 2021

Hypertension Guidelines And Coronary Artery Calcification Among South Asians: Results From Masala And Mesa, Jaideep Patel, Anurag Mehta, Mahmoud Al Rifai, Michael J. Blaha, Khurram Nasir, John W. Mcevoy, Ambarish Pandey, Alka M. Kanaya, Namratha R. Kandula, Salim S. Virani

Office of the Provost

Untreated hypertension may contribute to increased atherosclerotic cardiovascular disease (ASCVD) risk in South Asians (SA). We assessed HTN prevalence among untreated adults free of baseline ASCVD from the MASALA & MESA studies. The proportion of participants who received discordant recommendations regarding antihypertensive pharmacotherapy use by the 2017-ACC/AHA and JNC7 Guidelines across CAC score categories in each race/ethnic group was calculated. Compared with untreated MESA participants (n = 3896), untreated SA (n = 445) were younger (55±8 versus 59±10 years), had higher DBP (73±10 versus 70±10 mmHg), total cholesterol (199±34 versus 196±34 mg/dL), statin use (16% versus 9%) and …


Associations Of Cereal Grains Intake With Cardiovascular Disease And Mortality Across 21 Countries In Prospective Urban And Rural Epidemiology Study: Prospective Cohort Study, Sumathi Swaminathan, Mahshid Dehghan, John Michael Raj, Tinku Thomas, Sumathy Rangarajan, David Jenkins, Prem Mony, Viswanathan Mohan, Scott A. Lear, Romaina Iqbal Feb 2021

Associations Of Cereal Grains Intake With Cardiovascular Disease And Mortality Across 21 Countries In Prospective Urban And Rural Epidemiology Study: Prospective Cohort Study, Sumathi Swaminathan, Mahshid Dehghan, John Michael Raj, Tinku Thomas, Sumathy Rangarajan, David Jenkins, Prem Mony, Viswanathan Mohan, Scott A. Lear, Romaina Iqbal

Community Health Sciences

Objective: To evaluate the association between intakes of refined grains, whole grains, and white rice with cardiovascular disease, total mortality, blood lipids, and blood pressure in the Prospective Urban and Rural Epidemiology (PURE) study.
Design: Prospective cohort study.
Setting: PURE study in 21 countries.
Participants: 148 858 participants with median follow-up of 9.5 years.
Exposures: Country specific validated food frequency questionnaires were used to assess intakes of refined grains, whole grains, and white rice.
Main outcome measure: Composite of mortality or major cardiovascular events (defined as death from cardiovascular causes, non-fatal myocardial infarction, stroke, or heart failure). Hazard ratios were …


Low-Grade Fibromyxoid Sarcoma Incidentally Discovered As An Asymptomatic Mediastinal Mass: A Case Report And Review Of The Literature, Mir Ibrahim Sajid, Sidra Arshad, Jamshid Abdul Ghafar, Saulat Fatimi, Nasir Ud Din Feb 2021

Low-Grade Fibromyxoid Sarcoma Incidentally Discovered As An Asymptomatic Mediastinal Mass: A Case Report And Review Of The Literature, Mir Ibrahim Sajid, Sidra Arshad, Jamshid Abdul Ghafar, Saulat Fatimi, Nasir Ud Din

Medical College Documents

Background: Low-grade fibromyxoid sarcoma (LGFMS) is a rare tumor characterized by bland histological features and aggressive clinical course. The most common anatomic locations of occurrence are the lower extremities, thorax, inguinal area, and upper limbs. Primary mediastinal sarcomas are even rarer. To the best of our knowledge, only seven cases of primary mediastinal LGFMS have been reported in the literature. Here, we report a case of primary mediastinal LGFMS.
Case presentation: A 26-year-old Pakistani man presented with fever and vomiting for the past 2 months. On a routine chest x-ray, a mediastinal mass was incidentally found. Computed tomography (CT) scan …


Accuracy Of Procalcitonin Levels For Diagnosis Of Culture-Positive Sepsis In Critically Ill Trauma Patients: A Retrospective Analysis, Aisha Bakhtiar, Syed Jawad Haider Kazmi, Muhammad Sohaib Asghar, Muhammad Nadeem Khurshaidi, Salman Mazhar, Noman A. Khan, Nisar Ahmed, Farah Yasmin, Rabail Yaseen, Maira Hassan Jan 2021

Accuracy Of Procalcitonin Levels For Diagnosis Of Culture-Positive Sepsis In Critically Ill Trauma Patients: A Retrospective Analysis, Aisha Bakhtiar, Syed Jawad Haider Kazmi, Muhammad Sohaib Asghar, Muhammad Nadeem Khurshaidi, Salman Mazhar, Noman A. Khan, Nisar Ahmed, Farah Yasmin, Rabail Yaseen, Maira Hassan

Section of Cardiothoracic Surgery

Background: Abdominal trauma and intra-abdominal sepsis are associated with significant morbidity and mortality. Microcirculation in the gut is disrupted in hemorrhagic and septic shock leading to tissue hypoxia, and the damaged gut acts as a reservoir rich in inflammatory mediators and provides a continual source of inflammation to the systemic circulation leading to sepsis. Sepsis is defined as the presence (probable or documented) of infection together with a systemic inflammatory response to infection. Blood culture is commonly considered to be the preferred approach for diagnosing sepsis, although it is time-consuming, that is, reports are normally available only after 12-48 hours. …