Publications by authors named "Chughtai A"

Background: Cerebral amyloid angiopathy (CAA) is a common cause of intracerebral haemorrhage (ICH) with a high recurrence risk. Left atrial appendage occlusion (LAAO) is a method for ischaemic stroke prevention in patients with atrial fibrillation (AF), potentially reducing the risk of intracranial bleeding in CAA-associated ICH. We aimed to determine the outcomes of patients with AF with CAA-associated ICH undergoing LAAO.

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Background: The cause of acute paediatric hepatitis of unknown aetiology (2022) has not been established despite extensive investigation.

Objective: To summarise the evidence for and against a causal role for human adenovirus (HAdv), adeno-associated virus 2 (AAV-2) and SARS-CoV-2 in outbreaks of paediatric hepatitis in 2022.

Methods: We appraised and summarised relevant evidence for each of the Bradford Hill criteria for causality using quantitative (statistical modelling) and qualitative (narrative coherence) approaches.

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Background Breast cancer (BC) is the leading cause of cancer-related deaths in women worldwide. There has been a significant increase in the incidence of BC in Pakistan. Family history, older age, obesity, tobacco use, oral contraceptive use, early menarche, and hormonal replacement therapy are among the major risk factors.

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Background: The torque of maxillary incisors and molars forms an important component of smile esthetics. The inclination of these teeth may be affected by maxillary and mandibular dimensions. The study aimed to evaluate the correlation between the faciolingual inclinations of maxillary incisors and first molars with palatal width (PW), palatal depth (PD), maxillomandibular angle (MMA) and mandibular width (MW) using cone beam computed tomography scans.

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Introduction: Salivary gland tumors are an important group of neoplasms in the head and neck region. This study aims to assess the significance of β-catenin expression in both benign and malignant salivary gland tumors.

Materials And Methods: We included 80 reported cases of benign and malignant salivary gland tumors and employed β-catenin stain on tumor blocks.

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BACKGROUNDNigeria ranks first in Africa and sixth among countries with a high Tuberculosis burden globally. The increasing incidence of drug resistance following poor treatment adherence among drug-susceptible TB (DS-TB) patients necessitates reviewing TB services in Nigeria. This study explored accessibility and patient-reported experiences in newly established TB treatment facilities.

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Purpose: To compare the diagnostic efficacy of different relative myocardial blood flow (MBF) ratios in computed tomography perfusion (CTP) for myocardial ischemia in patients with obstructive coronary artery disease (CAD).

Methods: Between October 2020 and March 2024, patients with suspected or known obstructive CAD who underwent CTP + coronary computed tomography angiography and invasive coronary angiography/fractional flow reserve were retrospectively selected. Patients and vessels were categorized into ischemia and non-ischemia groups.

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Introduction: Compromised neonatal intensive care unit neonates are at risk of acquiring late-onset infections (late-onset sepsis [LOS]). Neonates born with congenital anomalies (CAs) could have an additional LOS risk.

Methods: Utilising the population-based Australian and New Zealand Neonatal Network data from 2007 to 2017, bacterial LOS rates were determined in very preterm (VPT, <32 week), moderately preterm (MPT, 32-36 weeks), and term (FT, 37-41 weeks) neonates with or without CA.

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Paragangliomas (PGs) are rare tumors that most commonly occur in the head and neck region and along the sympathetic chain. Fine-needle aspiration cytology is not commonly used for the diagnosis of PG due to the potential risk of hemorrhage and hypertensive crisis. As a result, limited studies describe the cytological features of PGs.

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Pakistan is facing energy crises due to localized shortages, market manipulation, infrastructure disruption, rising demand, governance issues, climate and geopolitical events. In this situation Demand Side Management (DSM) is a promising solution to overcome the problem of energy crises. DSM strategy helps to manage consumer demand through energy conservation rather than to addition of new power capacity.

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To explore the diagnostic efficacy of tomosynthesis spot compression (TSC) compared with conventional spot compression (CSC) for ambiguous findings on full-field digital mammography (FFDM). In this retrospective study, 122 patients (including 108 patients with dense breasts) with ambiguous FFDM findings were imaged with both CSC and TSC. Two radiologists independently reviewed the images and evaluated lesions using the Breast Imaging Reporting and Data System.

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Article Synopsis
  • The study examined the link between recent respiratory illnesses, particularly influenza, and acute myocardial infarction (AMI) in patients at a Dhaka hospital between May 2017 and October 2018.
  • Of the 744 AMI patients studied, 11.3% reported respiratory illnesses, primarily during the 2017 influenza season, with influenza confirmed in 1.5% of cases, all of whom had STEMI.
  • Despite higher rates of respiratory illness in STEMI patients and those with elevated troponin levels, the research found no significant relationship between these illnesses and the severity of AMI, highlighting the need for further investigation into potential preventive measures like vaccinations.
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Early diagnosis of lung cancer can significantly improve patient outcomes. We developed a Growth Predictive model based on the Wasserstein Generative Adversarial Network framework (GP-WGAN) to predict the nodule growth patterns in the follow-up LDCT scans. The GP-WGAN was trained with a training set (N = 776) containing 1121 pairs of nodule images with about 1-year intervals and deployed to an independent test set of 450 nodules on baseline LDCT scans to predict nodule images (GP-nodules) in their 1-year follow-up scans.

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Introduction: The modified Grunow-Finke tool (mGFT) is an improved scoring system for distinguishing unnatural outbreaks from natural ones. The 1979 Sverdlovsk anthrax outbreak was due to the inhalation of anthrax spores from a military laboratory, confirmed by Russian President Boris Yeltsin in 1992. At the time the Soviet Union insisted that the outbreak was caused by meat contaminated by diseased animals.

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In 1977, the Soviet Union (Union of Soviet Socialist Republics [USSR]) notified the World Health Organization (WHO) about an outbreak of H1N1 influenza, which later spread to many countries. The H1N1 strain of 1977 reappeared after being absent from the world for over 20 years. This pandemic simultaneously spread to several cities in the USSR and China.

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Timely detection of rare blood groups can be lifesaving, as individuals with these groups can only receive blood products from donors within the same group. The Bombay blood group is characterized by the absence of A, B, and H antigens on the surface of RBCs and can be easily missed in routine blood grouping if only forward grouping is performed. In reverse grouping, it is necessary to test the patient's serum with pooled O cells to differentiate between the O and Bombay blood groups.

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Article Synopsis
  • This narrative review and meta-analysis analyzes the benefits and challenges of masks, focusing on their impact on respiratory disease transmission and societal factors related to masking.
  • Key findings indicate that masks effectively reduce transmission when used correctly, respirators provide better protection than cloth masks, and mask mandates lower community spread of respiratory pathogens.
  • The study also highlights socio-cultural implications of masking, potential risks for certain individuals, environmental concerns of single-use masks, and recommends future research on effective masking practices and improved materials.
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Purpose To evaluate the feasibility of leveraging serial low-dose CT (LDCT) scans to develop a radiomics-based reinforcement learning (RRL) model for improving early diagnosis of lung cancer at baseline screening. Materials and Methods In this retrospective study, 1951 participants (female patients, 822; median age, 61 years [range, 55-74 years]) (male patients, 1129; median age, 62 years [range, 55-74 years]) were randomly selected from the National Lung Screening Trial between August 2002 and April 2004. An RRL model using serial LDCT scans (S-RRL) was trained and validated using data from 1404 participants (372 with lung cancer) containing 2525 available serial LDCT scans up to 3 years.

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The main objective of this study was to examine the relationship between affective trust in the supervisor and innovative work behavior. In addition, this paper investigated the mediating role of proactive skill development in the affective trust - innovative work behavior relationship and the moderating role of learning goal orientation in the affective trust - proactive skill development relationship. Data for this study were collected from 220 employees drawn from four FMCG (fast moving consumer goods) companies based in Pakistan.

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The origin of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is contentious. Most studies have focused on a zoonotic origin, but definitive evidence such as an intermediary animal host is lacking. We used an established risk analysis tool for differentiating natural and unnatural epidemics, the modified Grunow-Finke assessment tool (mGFT) to study the origin of SARS-COV-2.

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Objective: To analyse fasting serum concentrations of G-17 in healthy individuals to establish the reference intervals (RIs) in the Pakistani population.

Study Design: Cross-sectional, observational study. Place and Duration of the Study: Department of Clinical Chemistry and Immunology, Chughtai Institute of Pathology, Lahore, Pakistan, from October to December 2022.

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Unlabelled: This study paper's main goal is to report rare cases of skull base meningiomas that exemplify the complexities of diagnosis, therapy, and postoperative care. By describing these rare cases, we hope to advance knowledge of the clinical signs, difficulties, and prognoses of skull base meningiomas in a challenging anatomical setting. In the posterior cranial fossa, our investigation reveals a unique example of skull base meningioma that involved numerous cranial nerves and complex vasculature.

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In 2021, the International Diabetes Federation (IDF) reported that the prevalence of diabetes in Pakistan was 9.6%, higher than the global average. However, adherence to treatment guidelines, e.

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Objective: To determine the reference interval of soluble FMS-like tyrosine kinase-1 (sFIt-1) in healthy, non-pregnant and pregnant females.

Study Design: Observational study. Place and Duration of the Study: Department of Chemical Pathology, Chughtai Institute of Pathology, Lahore, from January to May 2023.

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Current evidence suggests that recent acute respiratory infections and seasonal influenza may precipitate acute myocardial infarction (AMI). This study examined the potential link between recent clinical respiratory illness (CRI) and influenza, and AMI in Bangladesh. Conducted during the 2018 influenza season at a Dhaka tertiary-level cardiovascular (CV) hospital, it included 150 AMI cases and two control groups: 44 hospitalized cardiac patients without AMI and 90 healthy individuals.

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