Publications by authors named "Vimal Krishnan"

Introduction: The incidence of stroke is increasing in India. Prehospital stroke care is crucial for reducing stroke morbidity and mortality, but its implementation in India faces several challenges. Limited original research exists on prehospital stroke care in India, making it essential to identify the problems in implementing effective prehospital stroke care.

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Background And Objectives: To develop key performance indicators (KPI) for use in quality assessment of our institutional goal-directed massive transfusion (GDMT).

Materials And Methods: A team comprising our transfusion and emergency medicine departments carried out a cross-sectional data analysis of GDMT in adult patients from January 2021 to December 2022. The study was rooted in the Define, Measure, Analyse, Improve, Control (DMAIC) approach.

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Background: Cytology cell blocks (CBs) are not routinely made for cerebrospinal fluid (CSF) specimens. The goal of this study was to identify when CSF CB preparation improves diagnostic performance.

Materials And Methods: Under institutional review board approval, a retrospective review of CSF cytology cases was conducted at a tertiary university-based hospital and an affiliated county hospital.

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Oncocytic lesions of the thyroid are a heterogeneous group encompassing nonneoplastic and neoplastic entities ranging from benign to malignant and have traditionally been classified as separate entities in thyroid pathology. To illustrate the diversity of these thyroid lesions, we describe three cases of fine needle aspiration biopsies (FNAB) diagnosed as Bethesda Category IV: Follicular neoplasm, oncocytic type, under the 2017 Bethesda System for Reporting Thyroid Cytopathology (TBSRTC), with ThyroSeq v3 molecular testing and subsequent surgical excision.

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Point-of-care ultrasound (PoCUS) has a potentially vital role to play in emergency medicine (EM), whether it be in high-, medium-, or low-resourced settings. However, numerous barriers are present which impede EM PoCUS implementation nationally and globally: (i) lack of a national practice guideline or scope of practice for EM PoCUS, (ii) resistance from non-PoCUS users of ultrasound imaging (USI) and lack of awareness from those who undertake parallel or post-EM patient care, and (iii) heterogeneous pattern of resources available in different institutes and settings. When combined with the Indian Preconception and Prenatal Diagnostic Techniques (PCPNDT) Act, this has led to the majority of India's 1.

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Objective: Cardiovascular disease is the leading cause of death worldwide. As there is an increase in the global burden of ischemic heart disease, there are multiple scoring systems established in the emergency department (ED) to risk stratify and manage acute coronary syndrome (ACS) in patients with chest pain. The objective of this study was to integrate point-of-care echo into the existing history, electrocardiogram, age, risk factors, and troponin (HEART) score and evaluate a novel scoring system, the echo HEART (E-HEART) score in risk stratification of patients presenting with undifferentiated chest pain to the ED.

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Article Synopsis
  • The debate over simulated patient mortality in healthcare training centers on whether it enhances learning or deceives students, with some experts advocating for the stress of a death scenario to create a more realistic experience.
  • A systematic review of six studies involving 384 learners found that simulated patient mortality significantly increased stress levels compared to survival scenarios, with a pooled mean difference for anxiety and stress of 0.63.
  • Three out of five studies indicated that simulated mortality helped improve knowledge retention, but responses varied among learners, suggesting that while some thrive under stress, others may find it detrimental unless properly addressed during debriefing.
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Objectives: Lymphoid cell rich fine-needle aspirations (FNAs) of the salivary glands pose a diagnostic dilemma, with a wide range of differential diagnoses that include several benign and malignant entities. There is limited literature regarding the entities that are commonly encountered in this situation. Our goal was to characterize the surgical outcome in these cases and to evaluate the risk of malignancy.

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Introduction: The Emergency Medicine Education and Research by Global Experts (EMERGE) network was formed to generate and translate evidence to improve global emergency care. We share the challenges faced and lessons learned in establishing a global research network.

Methods: We describe the challenges encountered when EMERGE proposed the development of a global emergency department (ED) visit registry.

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Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer, usually with an indolent course. fusions are rare in PTC but may give rise to a more aggressive behavior. We report a novel fusion, -, not previously described in PTC, detected by next-generation sequencing in a 30-year-old woman with progressive widely metastatic radioiodine-refractory (RAIR) disease to lung, muscle, and brain.

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Introduction: Acinic cell carcinoma of the salivary gland (ACC-SG) is characterized by recurrent rearrangements in the nuclear receptor subfamily 4 group A member 3 (NR4A3). Immunostaining using an antibody targeting this rearrangement, neuron-derived orphan receptor 1 (NOR-1), has been recently studied on surgical specimens and cell block material of fine-needle aspirates for the diagnosis of ACC-SG. Our goal was to evaluate whether NOR-1 immunostaining could reliably be performed on destained cytologic preparations.

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Article Synopsis
  • A study was conducted to compare two ultrasound-guided techniques for placing central venous catheters in the internal jugular vein (IJV) in an emergency department: the short-axis (SAX) and oblique axis (OAX) approaches.
  • *The research involved 60 patients, revealing a higher rate of acute complications (56.7%) in the SAX group compared to the OAX group (16.7%), with a notable incidence of posterior venous wall puncture in the SAX technique.
  • *The findings suggest that the OAX approach may be a safer alternative for IJV cannulation in emergency settings, warranting further research to establish it as a primary method for this procedure.
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Background: The commercially available training phantoms being expensive, homemade models are popular surrogates for training. We intended to study how comparable our indigenously developed ultrasound phantom (IDUP) was with the commercially available model for ultrasound-guided vascular access (USGVA) training. We also assessed the change in confidence among trainees using a 21-h standardized program.

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Introduction: Chest compression fraction (CCF) is the cumulative time spent providing chest compressions divided by the total time taken for the entire resuscitation. Targeting a CCF of at least 60% is intended to limit interruptions in compressions and maximize coronary perfusion during resuscitation. We aimed to identify the mean CCF and its relationship with various factors affecting it.

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The components of each stage have similarities as well as differences, which make each unique in its own right. As the film-making and the movie industry may have much we can learn from, some of these will be covered under the different sections of the paper, for example, "Writing Powerful Narratives," depiction of emotional elements, specific industry-driven developments as well as the "cultural considerations" in both. For medical simulation and simulation-based education, the corresponding stages are as follows: DevelopmentPreproductionProductionPostproduction andDistribution.

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The authors of this toolkit focus on children under the age of 18 comprising approximately 41% of the total population in India. This toolkit has been created with an objective to prepare, mitigate the effects of any surge of COVID-19 in our communities, and help to optimally utilize the scarce resources. The toolkit design suggests the manpower, equipment, laboratory support, training, consumables, and drugs for a 10-bedded pediatric emergency room, 25-bedded COVID pediatric intensive care unit, and 75-bedded COVID pediatric high dependency unit/ward as defined for a 100-bedded facility.

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Article Synopsis
  • COVID-19 prompted major changes in clinical practices, education, and research, requiring healthcare professionals to be decisive, innovative, and adaptable.
  • The situation highlighted the importance of integrating patient care with educational and research activities, enhancing ingenuity across these areas.
  • SingHealth employs the PACERS framework (Preparedness, Adaptability, Communications, Education, Research, Support) to effectively respond to crises, emphasizing simulation training and quality improvement.
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Background: Studies have shown that aggressive treatment of non-small cell lung cancer (NSCLC) with oligometastatic disease improves the overall survival (OS) compared to a palliative approach and some immunotherapy checkpoint inhibitors, such as anti-programmed cell death ligand 1 (PD-L1), anti-programmed cell death protein 1 (PD-1), and T-Lymphocyte-associated antigen 4 (CTLA-4) inhibitors are now part of the standard of care for advanced NSCLC. However, the prognostic impact of PD-L1 expression in the oligometastatic setting remains unknown.

Methods: Patients with oligometastatic NSCLC were identified from the patient database of the Centre hospitalier de l'Université de Montréal (CHUM).

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Epithelial-myoepithelial carcinoma (EMCA) is a rare low-grade carcinoma of the salivary glands with multiple morphological variants. One such variant, sebaceous EMCA (SEMCA), has been reported in the literature. Distinguishing it from other tumors such as sebaceous carcinoma is crucial, as SEMCA typically behaves more indolently.

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What started as a cluster of patients with a mysterious respiratory illness in Wuhan, China, in December 2019, was later determined to be coronavirus disease 2019 (COVID-19). The pathogen severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel , was subsequently isolated as the causative agent. SARS-CoV-2 is transmitted by respiratory droplets and fomites and presents clinically with fever, fatigue, myalgias, conjunctivitis, anosmia, dysgeusia, sore throat, nasal congestion, cough, dyspnea, nausea, vomiting, and/or diarrhea.

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Article Synopsis
  • Covid-19 has highlighted the world's lack of preparedness for epidemics, prompting nations to commit to better protecting their populations.
  • The pandemic has shifted attention back to communicable diseases, which had been overlooked due to a focus on non-communicable diseases in the past decades.
  • The Organized Medicine Academic Guild (OMAG) has convened health experts to create a policy document aimed at improving epidemic preparedness and reducing the impact of future outbreaks like Covid-19.
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  • A study was conducted on 34 skin biopsies from Canada's first face transplant patient to analyze acute rejection criteria and the impact of early vascular lesions on graft rejection.* -
  • Observations revealed that acute vascular damage, often seen in mild rejection, linked closely with low immunosuppressant levels and improved with increased tacrolimus doses.* -
  • The research suggests that vascular injury could indicate a more severe rejection response in vascularized composite tissue allografts, potentially leading to changes in clinical management for future cases.*
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