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  1. Gendeh BS, Gendeh HS, Purnima S, Comoretto RI, Gregori D, Gulati A
    Indian J Pediatr, 2019 Jan;86(Suppl 1):20-24.
    PMID: 30623311 DOI: 10.1007/s12098-018-2824-8
    Foreign body aspiration in children is a problem that can lead to several complications, including death. In this retrospective publication review from 1970 to 2015, there were altogether 42 Malaysian children below the age of 15 y reported with foreign body (FB) ingestion. There were 31 boys and 11 girls between 2 and 177 mo of age. The incidence of FB ingestion in children varied with dietary practices. Peanut was the most common food-related substance inhaled followed by watermelon seed and coconut kernel. The most common non-food related substances were metal objects (toys, springs, hair clips) and plastic objects (ballpoint tips, pencil caps and whistles). Successful removal of FB by bronchoscopy is achieved in the vast majority of cases except for a case of impacted whistle inhalation and a neglected laryngeal FB which required a tracheostomy. One child required thoracotomy for the removal of a peanut in the right bronchus. The incidence of food-related substance inhalation was more common than non-food related substance (30:7). From this review, the key messages are two: first, prevention can be achieved by educating parents not to allow access to small objects or dangerous foods to children below 3 y age; Second, emergency first aid home measures, in the combination form of back blows in the head down position and chest or abdominal thrusts, should be early performed according to the pediatric age group and can be quite effective.
  2. Ng DPJ, Duffull SB, Faed JM, Isbister GK, Gulati A
    Clin Appl Thromb Hemost, 2018 May;24(4):669-676.
    PMID: 28731370 DOI: 10.1177/1076029617711802
    A well-accepted test for monitoring anticoagulation by enoxaparin is not currently available. As inadequate dosing may result in thrombosis or bleeding, a clinical need exists for a suitable test. Previous in silico and in vitro studies have identified factor Xa as an appropriate activating agent, and the phospholipid Actin FS as a cofactor for a Xa clotting time (TenaCT) test. A proof-of-concept study was designed to (1) explore the reproducibility of the TenaCT test and (2) explore factors that could affect the performance of the test. In vitro clotting time tests were carried out using plasma from 20 healthy volunteers. The effect of enoxaparin was determined at concentrations of 0.25, 0.50, and 1.0 IU/mL. Clotting times for the volunteers were significantly prolonged with increasing enoxaparin concentrations. Clotting times were significantly shortened for frozen plasma samples. No significant differences in prolongation of clotting times were observed between male and female volunteers or between the 2 evaluated age groups. The clotting times were consistent between 2 separate occasions. The TenaCT test was able to distinguish between the subtherapeutic and therapeutic concentrations of enoxaparin. Plasma should not be frozen prior to performing the test, without defining a frozen plasma reference range. This study provided proof-of-concept for a Xa-based test that can detect enoxaparin dose effects, but additional studies are needed to further develop the test.
  3. Wang DY, Wardani RS, Singh K, Thanaviratananich S, Vicente G, Xu G, et al.
    Rhinology, 2011 Aug;49(3):264-71.
    PMID: 21866280 DOI: 10.4193/Rhino10.169
    BACKGROUND: Based on the `European Position Paper on Rhinosinusitis and Nasal polyps (EP3OS 2007)`, this study aimed to investigate general practitioners (GPs) and other specialists` understanding when managing patients with acute rhinosinusitis (ARS) in Asia.
    METHODOLOGY: Among a total of 2662 questionnaires completed, 2524 (94.8%) were valid for analysis. There were 1308 GPs (51.8%), 989 otolaryngologists (39.2%) and 227 paediatricians (9%) from Mainland China, Hong Kong, Indonesia, India, Malaysia, Pakistan, Philippines, Singapore, Thailand and Taiwan.
    RESULTS: ARS is affecting an estimated 6 - 10% of patients seen in a daily out-patient practice. The EP3OS criteria are well supported by Asian physicians (94.1%). Most physicians (62.7%) agreed that radiological investigation is not needed to diagnose ARS. However, even for mild ARS (common cold), medical treatments were still recommended by 87% of GPs, 83.9% of otolaryngologists, and 70% of paediatricians. The top three first-line treatments prescribed were antihistamines (39.2%), nasal decongestants (33.6%), and antibiotics (29.5%). Antibiotics usage increased as the first line treatment of moderate (45.9%) and severe (60.3%) ARS.
    CONCLUSION: ARS is commonly managed by GPs, otolaryngologists, and paediatricians in Asia. However, understanding of the management of ARS needs further improvement to minimize unnecessary use of radiological investigations, overuse of antibiotics, and under use of nasal corticosteroids.
  4. Jeyaraman M, Muthu S, Bapat A, Jain R, Sushmitha ES, Gulati A, et al.
    Heliyon, 2021 Jul;7(7):e07635.
    PMID: 34312598 DOI: 10.1016/j.heliyon.2021.e07635
    The contagiosity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has startled mankind and has brought our lives to a standstill. The treatment focused mainly on repurposed immunomodulatory and antiviral agents along with the availability of a few vaccines for prophylaxis to vanquish COVID-19. This seemingly mandates a deeper understanding of the disease pathogenesis. This necessitates a plausible extrapolation of cell-based therapy to COVID-19 and is regarded equivalently significant. Recently, correlative pieces of clinical evidence reported a robust decline in lymphocyte count in severe COVID-19 patients that suggest dysregulated immune responses as a key element contributing to the pathophysiological alterations. The large granular lymphocytes also known as natural killer (NK) cells play a heterogeneous role in biological functioning wherein their frontline action defends the body against a wide array of infections and tumors. They prominently play a critical role in viral clearance and executing immuno-modulatory activities. Accumulated clinical evidence demonstrate a decrease in the number of NK cells in circulation with or without phenotypical exhaustion. These plausibly contribute to the progression of pulmonary inflammation in COVID-19 pneumonia and result in acute lung injury. In this review, we have outlined the present understanding of the immunological response of NK cells in COVID-19 infection. We have also discussed the possible use of these powerful biological cells as a therapeutic agent in view of preventing immunological harms of SARS-CoV-2 and the current challenges in advocating NK cell therapy for the same.
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