Medicine and Health Sciences Commons^™

Impact Of Compensated Cirrhosis On Survival In Patients With Acute-On-Chronic Liver Failure, Kessarin Thanapirom, Tongluk Teerasarntipan, Sombat Treeprasertsuk, Ashok Choudhury, Manoj K. Sahu, Rakhi Maiwall, Viniyendra Pamecha, Richard Moreau, Saeed Hamid, Amna Subhan Butt

Section of Gastroenterology

Background and aims: Acute-on-chronic liver failure (ACLF) is considered a main prognostic event in patients with chronic liver disease (CLD). We analyzed the 28-day and 90-day mortality in ACLF patients with or without underlying cirrhosis enrolled in the ACLF Research Consortium (AARC) database.
Methods: A total of 1,621 patients were prospectively enrolled and 637 (39.3%) of these patients had cirrhosis. Baseline characteristics, complications and mortality were compared between patients with and without cirrhosis.
Results: Alcohol consumption was more common in cirrhosis than non-cirrhosis (66.4% vs. 44.2%, p < 0.0001), while non-alcoholic fatty liver disease/cryptogenic CLD (10.9% vs 5.8%, p < 0.0001) and chronic HBV reactivation (18.8% vs 11.8%, p < 0.0001) were more common in non-cirrhosis. Only 0.8% of patients underwent liver transplantation. Overall, 28-day and 90-day mortality rates were 39.3% and 49.9%, respectively. Patients with cirrhosis had a greater chance of survival compared to those without cirrhosis both at 28-day (HR = 0.48; 95% CI 0.36-0.63, p < 0.0001) and 90-day (HR = 0.56; 95% CI 0.43-0.72, p < 0.0001), respectively. In alcohol CLD, non-cirrhosis patients had a higher 28-day (49.9% vs. 23.6%, p < 0.001) and 90-day (58.4% vs. 35.2%, p < 0.001) mortality rate than cirrhosis patients. ACLF patients with cirrhosis had longer mean survival than non-cirrhosis patients (25.5 vs. 18.8 days at 28-day and 65.2 vs. 41.2 days at 90-day). Exaggerated systemic inflammation might be the reason why non-cirrhosis patients had a poorer prognosis than those with cirrhosis after ACLF had occurred.
Conclusions: The 28-day and 90-day mortality rates of ACLF patients without cirrhosis were …

Isolated Diastolic Hypertension In The Idaco Study: An Age-Stratified Analysis Using 24-Hour Ambulatory Blood Pressure Measurements, John W. Mcevoy, Wen-Yi Yang, Lutgarde Thijs, Zhen-Yu Zhang, Jesus D. Melgarejo, José Boggia, Tine W. Hansen, Kei Asayama, Takayoshi Ohkubo, Gladys E. Maestre

School of Medicine Publications and Presentations

The prognostic implications of isolated diastolic hypertension (IDH), as defined by 2017 American College of Cardiology (ACC)/American Heart Association (AHA) guidelines, have not been tested using ambulatory blood pressure (BP) monitor thresholds (ie, 24-hour mean systolic BP ≥75 mm Hg). We analyzed data from 11 135 participants in the IDACO (International Database on Ambulatory Blood Pressure in Relation to Cardiovascular Outcomes). Using 24-hour mean ambulatory BP monitor values, we performed Cox regression testing independent associations of IDH with death or cardiovascular events. Analyses were conducted in the cohort overall, as well as after age stratification (≥50 years). The median age …

Malignant And Non-Malignant Causes Of Hypercalcemia: A Retrospective Study At A Tertiary Care Hospital In Pakistan, Sabiha Banu, Sumera Batool, Saadia Sattar, Muhammad Qamar Masood

Section of Diabetes, Endocrinology and Metabolism

Background: Hypercalcemia is a common electrolyte abnormality presenting with a variety of symptoms. The common causes are primary hyperparathyroidism and malignancy associated with hypercalcemia. However, iatrogenic hypercalcemia with the overzealous use of vitamin D has now emerged as another important cause of hypercalcemia over the past decade.
Objective: This study aims to evaluate the causes of hypercalcemia, management strategies, and outcomes in patients admitted with hypercalcemia in a tertiary care hospital. Method: It is a retrospective study done at Aga Khan University Hospital (AKUH), Karachi after taking approval from the ethical review committee (ERC). Data were gathered about all patients …

Referral Pattern And Outcomes Of Neonates From Secondary Care Setting Of Aga Khan University Hospital To Tertiary Care Centers In Pakistan, Suneeta Khemani, Nazia Shamim, Adnan Mirza, Nadia Mohammad, Safdar Kagazwala, Shakeel Ahmed

Department of Paediatrics and Child Health

Objective: To determine the reasons of neonatal referrals from secondary-care to tertiary-care setting, and to assess neonatal outcomes for the referred cases.
Methods: The retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised data from July 2015 to June 2019 Related to all neonates born after 32 weeks of gestation at the satellite secondary-care centres in Kharadar, Garden and Karimabad who had been referred to the main tertiary care hospital. The reason for referral, need of mechanical ventilation, referral place and neonatal outcome were noted. Data was analysed using SPSS 22.
Results: Of the 348 cases, …

Clinical Characteristics And Outcomes Of Covid-19: Experience At A Major Tertiary Care Center In Pakistan, Nosheen Nasir, Kiren Habib, Iffat Khanum, Naveera Khan, Zehra Abdul Muhammad, Syed Faisal Mahmood

Section of Internal Medicine

Introduction: Limited data exist on clinical characteristics and outcomes of hospitalized COVID-19 patients in low-middle income countries. We aimed to describe the clinical spectrum and outcomes of hospitalized COVID-19 patients at a tertiary-care center in Karachi, Pakistan.
Methodology: We conducted an observational study of adult COVID-19 patients hospitalized between February-June 2020. Patients with a discharge diagnosis of COVID-19 and PCR positivity were included. We created logistic regression models to understand association of clinical characteristics with illness severity and in-hospital mortality.
Results: The study population comprised 445 patients [67% males, median age 53 (IQR 40-64) years]. Majority of patients (N = …

Development And Validation Of A Predictive Model For Childhood Mortality After A Traumatic Brain Injury: Analysis Of The National Trauma Data Bank, Jooby Joy, Axel Moreira, Kevin Chorath, Karthik Rajasekaran, Alvaro Moreira

School of Medicine Publications and Presentations

Introduction: Traumatic brain injury (TBI) is a significant cause of morbidity and mortality in children. While most TBI-related admissions are mild, identifying early predictors of poor outcome may assist clinicians with timely medical decisions and effective triage utilization.

Objective: We sought to develop and validate a clinical tool for predicting in-hospital death in children after a traumatic brain injury.

Methods: Data was collected for children (≤18 years) from the National Trauma Data Bank between the years of 2007 to 2015. We included children who sustained any TBI, defined as: (i) open and closed skull fractures, (ii) cerebellar, cortical, or brain …

Evaluation Of Serum Ferritin For Prediction Of Severity And Mortality In Covid-19- A Cross Sectional Study, Sibtain Ahmed, Zeeshan Ansar Ahmed, Imran Siddiqui, Naveed Haroon Rashid, Maheen Mansoor, Lena Jafri

Department of Pathology and Laboratory Medicine

Background: Ferritin even though widely recognized as a representative of total body iron stores, its prognostic utility is linked with COVID-19. This study was aimed at evaluation of the association of ferritin with severity in Coronavirus disease 2019 (COVID-19), hospitalized patients and to test the hypothesis that it is an independent predictor of mortality.
Material and methods: This study was conducted at Chemical Pathology, Department of Pathology and Laboratory Medicine, Aga Khan University (AKU), Karachi. Medical records of all in-patients including both genders, and all age groups with documented COVID-19 from 1st March to 10^th August 2020 were reviewed. …

Impact Of Social Isolation On Mortality And Morbidity In 20 High-Income, Middle-Income And Low-Income Countries In Five Continents, Ryo Naito, Darryl P. Leong, Shrikant Ishve Bangdiwala, Martin Mckee, S V. Subramanian, Sumathy Rangarajan, Shofiqul Islam, Alvaro Avezum, Karen E. Yeates, Syed Iqbal Azam

Community Health Sciences

Objective: To examine the association between social isolation and mortality and incident diseases in middle-aged adults in urban and rural communities from high-income, middle-income and low-income countries.
Design: Population-based prospective observational study.
Setting: Urban and rural communities in 20 high income, middle income and low income.
Participants: 119 894 community-dwelling middle-aged adults.
Main outcome measures: Associations of social isolation with mortality, cardiovascular death, non-cardiovascular death and incident diseases.
Results: Social isolation was more common in middle-income and high-income countries compared with low-income countries, in urban areas than rural areas, in older individuals and among women, those with less education and …

Oat Intake And Risk Of Type 2 Diabetes, Cardiovascular Disease And All-Cause Mortality: A Systematic Review And Meta-Analysis, Faina Wehrli, Petek E. Taneri, Arjola Bano, Lia Bally, Lauren C. Blekkenhorst, Weston Bussler, Brandon Metzger, Beatrice Minder, Marija Glisic, Taulant Muka, Hua Kern

Research outputs 2014 to 2021

Cardiovascular disease (CVD) and type 2 diabetes (T2D) remain the top disease and mortality burdens worldwide. Oats have been shown to benefit cardiovascular health and improve insulin resistance. However, the evidence linking oat consumption with CVD, T2D and all-cause mortality remains inconclusive. We conducted a comprehensive systematic review and meta-analysis of prospective cohort studies to evaluate the associations between oat consumption and risks of T2D, CVD and all-cause mortality in the general population. Five electronic databases were searched until September, 2020. Study specific relative risks (RR) were meta-analyzed using random effect models. Of 4686 relevant references, we included 9 articles, …

Covid-19 Disease Severity And Death In Relation To Vitamin D Status Among Sars-Cov-2-Positive Uae Residents, Habiba Alsafar, William B. Grant, Rafiq Hijazi, Maimunah Uddin, Nawal Alkaabi, Guan Tay, Bassam Mahboub, Fatme Al Anouti

Research outputs 2014 to 2021

Insufficient blood levels of the neurohormone vitamin D are associated with increased risk of COVID-19 severity and mortality. Despite the global rollout of vaccinations and promising preliminary results, the focus remains on additional preventive measures to manage COVID-19. Results conflict on vitamin D’s plausible role in preventing and treating COVID-19. We examined the relation between vitamin D status and COVID-19 severity and mortality among the multiethnic population of the United Arab Emirates. Our observational study used data for 522 participants who tested positive for SARS-CoV-2 at one of the main hospitals in Abu Dhabi and Dubai. Only 464 of those …

Association Of Fatal And Nonfatal Cardiovascular Outcomes With 24-Hour Mean Arterial Pressure, Jesus D. Melgarejo, Wen-Yi Yang, Lutgarde Thijs, Kei Asayama, Tine W. Hansen, Fang-Fei Wei, Masahiro Kikuya, Takayoshi Ohkubo, Eamon Dolan, Gladys E. Maestre

School of Medicine Publications and Presentations

Major adverse cardiovascular events are closely associated with 24-hour blood pressure (BP). We determined outcome-driven thresholds for 24-hour mean arterial pressure (MAP), a BP index estimated by oscillometric devices. We assessed the association of major adverse cardiovascular events with 24-hour MAP, systolic BP (SBP), and diastolic BP (DBP) in a population-based cohort (n=11 596). Statistics included multivariable Cox regression and the generalized R2 statistic to test model fit. Baseline office and 24-hour MAP averaged 97.4 and 90.4 mm Hg. Over 13.6 years (median), 2034 major adverse cardiovascular events occurred. Twenty-four-hour MAP levels of <90 >(normotension, n=6183), 90 to <92 >(elevated MAP, n=909), …