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1.
BMJ Case Rep ; 17(10)2024 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-39414323

RESUMO

A male baby born out of consanguineous marriage (third degree) to a primigravida mother presented to our hospital on day 21 of life as his third hospitalisation with jerky movements, respiratory distress and refusal to feed. The baby had blood culture-positive sepsis, which was treated adequately. He was given antiseizure therapy for jerky movements, but there was no response to multiple antiseizure therapy, and then pyridoxine was added. A significant response was noted with the addition of clonazepam. Neuroimaging and electroencephalogram were normal. The whole exome sequencing suggested a homozygous mutation (frameshift variant c.97delA in exon 2 of the GLRB gene) associated with hyperekplexia 2, resulting in the amino acid substitution p.Lys34fs*27.


Assuntos
Homozigoto , Hiperecplexia , Humanos , Masculino , Recém-Nascido , Hiperecplexia/genética , Hiperecplexia/diagnóstico , Hiperecplexia/tratamento farmacológico , Clonazepam/uso terapêutico , Convulsões/genética , Convulsões/tratamento farmacológico , Convulsões/diagnóstico , Diagnóstico Diferencial , Receptores de Glicina/genética , Anticonvulsivantes/uso terapêutico , Mutação , Consanguinidade
2.
Indian J Med Microbiol ; 52: 100733, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39322183

RESUMO

PURPOSE: Donor human milk (DHM) from milk banks provides vital nutrition to vulnerable infants. Understanding its microbial profile and antimicrobial resistance patterns is crucial for ensuring its safety and efficacy. This study aimed to profile the microbial composition, detect antibiotic resistance, and identify the presence of mecA gene in Staphylococcal strains from DHM samples. MATERIALS AND METHOD: A total of 151 DHM samples were collected from a regional human milk bank in North India. Microbial identification was performed using MALDI TOF MS, and antimicrobial susceptibility testing was conducted using the disc diffusion method. Molecular methods, including PCR, were employed for mecA gene detection. RESULTS: The study revealed a diverse microbial profile, with Staphylococcus species being predominant. Acinetobacter and Pseudomonas species were also prevalent, raising concerns due to their association with healthcare-associated outbreaks. High rates of antibiotic resistance were observed across both Gram-positive and Gram-negative bacteria, with resistance to commonly used antibiotics such as penicillin, clindamycin, erythromycin, and ceftriaxone. The mecA gene, associated with methicillin resistance, was detected in a significant proportion of Staphylococcal isolates. CONCLUSION: The study underscores the importance of rigorous microbial analysis and antimicrobial susceptibility testing in assessing the safety of DHM. The presence of diverse microbial species, including antibiotic-resistant strains and the mecA gene in Staphylococcal strains, emphasizes the need for stringent hygiene practices and continuous surveillance in milk banks. Implementing comprehensive screening protocols and adhering to best practices in milk handling and pasteurization are crucial for safeguarding the health of vulnerable infants reliant on donor milk.

3.
BMJ Case Rep ; 17(5)2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38702072

RESUMO

We report a successful case where a newborn with transfusion-related acute lung injury following an exchange transfusion was effectively treated using conservative methods, eliminating the need for surfactant therapy. Very few instances of this complication have been documented globally. A low birth weight, small for gestational age, term neonate, diagnosed with hyperbilirubinaemia due to Rh incompatibility, experienced sudden respiratory distress in the form of severe retractions, tachypnoea and cyanosis 3 hours after the procedure. Neonate required mechanical ventilation on the grounds of mixed acidosis and diffuse alveolar infiltrates on the chest radiograph. The medical team suspected and treated the baby for transfusion-related acute lung injury through conservative measures. Transfusion-related acute lung injury, an acute life-threatening complication of blood component transfusion, can exhibit symptoms in neonates that are frequently misinterpreted as sepsis. The baby was discharged in good health after successful management after 19 days.


Assuntos
Lesão Pulmonar Aguda Relacionada à Transfusão , Humanos , Recém-Nascido , Transfusão Total , Recém-Nascido Pequeno para a Idade Gestacional , Respiração Artificial , Lesão Pulmonar Aguda Relacionada à Transfusão/etiologia , Lesão Pulmonar Aguda Relacionada à Transfusão/diagnóstico
4.
Indian J Otolaryngol Head Neck Surg ; 76(1): 626-632, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38440429

RESUMO

To compare and evaluation of surgical operability with and without induction chemotherapy in locally advanced head and neck squamous cell carcinoma. Head and neck malignancy grossly refers to squamous cell carcinomas of head and neck (HNSCC) have multiple treatment modalities and strategies, when opted in an appropriate manner renders tumours curable. The aim of this study is to compare and evaluation of surgical operability with and without induction chemotherapy in locally advanced head and neck squamous cell carcinoma. A prospective observational study involving 50 patients of histologically proven squamous cell carcinoma of head and neck region. Patients were categorized into two major groups, group-1 patients included resectable tumour stage and group-2 included unresectable tumour stage. Both groups were compared after appropriate chemotherapy and surgical intervention. There were a total of 78% males and 22% females with majority of patients in age group of 41-60 years. 54% patients had ulcerative type of growth pattern and most patients had primary site of lesion in oral cavity. 50% patients had moderately differentiated squamous cell carcinoma. Induction chemotherapy was considered in 70% of patients, while majority of patients were belonging to T4N2M0 stage. In this study, we recommend that the borderline category of patients who are initially in an unresectable tumour stage can undergo induction chemotherapy to downstage and shrink the tumour to a resectable stage following which the appropriate surgical intervention should be done with a close monitoring and sustained follow up to prevent recurrence.

5.
Curr Probl Cardiol ; 49(1 Pt B): 102065, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37652112

RESUMO

Nonalcoholic Fatty Liver Disease (NAFLD) is proving to be a globally prevalent condition. Moreover, NAFLD may be an independent risk factor associated with higher cardiovascular (CVD) morbidity and mortality. Further studies are needed to assess whether NAFLD needs to be included in the atherosclerotic risk score algorithms or whether patients with NAFLD need to be screened early on to assess their CVD risk especially since imaging such as positron emission tomography can be used to assess both NAFLD and CV disease at the same time. Therefore employing cardiovascular imaging modalities to investigate the incidence, extent, and nature of atherosclerotic lesions in NAFLD may be beneficial. Additionally, whether treating NAFLD halts the progression of CVD on imaging remains to be seen. Further research to delineate NAFLD and CVD associations, deciphering screening imaging modalities, and investigating targeted interventions could improve CVD morbidity and mortality in NAFLD.


Assuntos
Aterosclerose , Doenças Cardiovasculares , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Fatores de Risco , Doenças Cardiovasculares/diagnóstico por imagem , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Fatores de Risco de Doenças Cardíacas , Diagnóstico por Imagem
6.
Chin Herb Med ; 15(4): 549-555, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38094017

RESUMO

Objective: To extract and isolate berberine from Berberis aristata (Berberidaceae). Isolated berberine was characterised using spectroscopy and its antioxidant and antiarthritic activity was analyzed. Methods: The berberine was isolated from B. aristata using microwave-assisted extraction (MAE) and characterised by a spectroscopic technique. The isolated berberine was evaluated for its antioxidant activity in DPPH, nitric oxide, and superoxide scavenging assays, while antiarthritic activity was evaluated in the complete freund's adjuvant (CFA)-induced arthritis rat model. Results: The antioxidant activity of berberine revealed potent antioxidant activity in DPPH, nitric oxide, and superoxide scavenging assays. The in vivo antiarthritic activity of berberine in the CFA-induced arthritis rat model showed a significant reduction in paw diameter, arthritic score, and an increase in body weight. Furthermore, a concentration-dependent ameliorating action of berberine on haematological parameters was noticed. Proinflammatory biomarkers, including IL-6, IL-10, and TGF-b in serum were reported, and histopathology examination revealed that berberine decreased pannus formation, synovial hyperplasia, and bone erosion. Radiographic investigation showed soft tissue inflammation, bone resorption and erosion, joint gap reduction, and substantial connective tissue expansion after treatment with berberine. Conclusion: The ameliorating action on haematological parameters and proinflammatory biomarkers of berberine makes them a suitable remedy for the treatment of arthritis.

7.
Indian J Otolaryngol Head Neck Surg ; 75(4): 3925-3928, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37974857

RESUMO

Cavernous hemangioma of orbit is a benign, noninfiltrative, slowly progressive vascular neoplasm. It is usually asymptomatic but patients may present with proptosis and diminished vision due to compression of second cranial nerve, optic nerve. This can be usually diagnosed with the help of clinical examination and computed tomography (CT) or magnetic resonance imaging (MRI). Small sized tumours are worth wait and watch while large ones need surgical excision. In our case report, A 65-year-old male patient presented to the head and neck surgery with proptosis of left eye since 5 years along with decreased vision since 4 years. MDCT scan (orbits plain) suggestive of large solid retroocular, intraconal mass in left orbit leading to proptosis of left eyeball. The patient underwent excision of tumour through a transnasal endoscopic approach. Histopathological examination of the tumour identified as cavernous hemangioma. It is safe and effective way to access and excise the orbital tumours through the transnasal endoscopic approach. It is essential to have experienced surgeon in endoscopic procedures. The patient had satisfactory results at three months follow up and showed no symptoms or relapse on CT scans of orbital region. Supplementary Information: The online version contains supplementary material available at 10.1007/s12070-023-03984-y.

8.
Pediatr Neurol ; 149: 53-55, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37776661

RESUMO

Pyridoxine-dependent seizures are a rare cause of recurrent seizures in the neonatal period that are resistant to most of the antiepileptic medications, but respond to pyridoxine. There is a wide spectrum of clinical manifestations, and in the absence of biochemical markers, clinical diagnosis is often delayed. We report a case of neonatal seizures that initially responded to antiepileptic drugs but later presented with intractable seizures and metabolic abnormalities. Clinical exome sequencing was suggestive of ALDH7A1 mutation.


Assuntos
Epilepsia Generalizada , Epilepsia , Recém-Nascido , Humanos , Epilepsia/tratamento farmacológico , Epilepsia/genética , Anticonvulsivantes/uso terapêutico , Convulsões/etiologia , Convulsões/genética
9.
Lancet Reg Health Southeast Asia ; 16: 100268, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37662056

RESUMO

Background: The phenotypical profile of cardiovascular malformations in patients with congenital rubella syndrome (CRS) is varied. We aimed to describe the profile of cardiac defects among CRS patients detected in the sentinel CRS surveillance in India during 2016-22. Methods: Sentinel sites enrolled infants with suspected CRS based on presence of cardiac defects, hearing impairment, eye signs, or maternal history of febrile rash illness. Suspected CRS cases underwent detailed systemic examination, including echocardiography and serological investigation for rubella. Cardiac defects were categorized as 'Simple' or 'Complex' as per the National Heart, Lung, and Blood Institute classification. We compared the distribution of cardiac defects among laboratory confirmed CRS cases and seronegative discarded cases. Findings: Of the 4578 suspected CRS cases enrolled by 14 sites, 558 (12.2%) were laboratory confirmed. 419 (75.1%) laboratory confirmed cases had structural heart defects (simple defects: n = 273, 65.2%, complex defects: n = 144, 34.4%), with ventricular septal defect (42.7%), atrial septal defect (39.4%), patent ductus arteriosus (36.5%), and tetralogy of Fallot as the commonest defects (4.5%). Laboratory confirmed CRS cases had higher odds of left to right shunt lesions (OR = 1.58, 95% CI: 1.15-2.17). This was mainly on account of a significant association of PDA with CRS (OR = 1.77, 95% CI: 1.42-2.21). Mortality was higher among CRS patients with complex heart defects (HR = 2.04, 95% CI: 1.26-3.30). Interpretation: Three-fourths of the laboratory confirmed CRS cases had structural heart defects. CRS patients with complex cardiac defects had higher mortality. Detecting CRS infection early and providing timely intervention for cardiovascular defects is critical for the management of CRS patients. Funding: Ministry of Health and Family Welfare, Govt of India, through Gavi, the Vaccine Alliance.

10.
BMJ Case Rep ; 16(9)2023 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-37739444

RESUMO

A boy presented with cough, breathlessness for 1 month, fever for 1 week with similar previous episodes without hospitalisation. He had generalised muscle wasting, acute chronic malnutrition and required immediate ventilation. Provisional diagnosis of recurrent pneumonia with failure to thrive was made. As serial chest X-rays showed recurrent lung collapse, congenital lung anomalies were ruled out. 2D-echocardiography showed pulmonary arterial hypertension. Workup for congenital immunodeficiency and cystic fibrosis was negative. There was no improvement in muscle mass despite total parenteral nutrition. He was noticed to have myopathic facies. History was reviewed when the mother reported reduced fetal movements in this pregnancy. The patient had low voice amplitude. Creatine kinase levels were normal. Muscle biopsy followed by whole exome sequencing identified frameshift duplication NM_020451.3(SELENON):c.249_250dupGG (p.Asp84Glyfs*17), thus, confirming diagnosis of SEPN1-related congenital myopathy (CM) with fibre-type disproportion. Respiratory system involvement was distracter, emphasising consideration of CM while evaluating persistent lung collapse with muscle wasting.


Assuntos
Hipertensão , Doenças Musculares , Pneumonia , Hipertensão Arterial Pulmonar , Atelectasia Pulmonar , Masculino , Feminino , Gravidez , Humanos , Artéria Pulmonar , Doenças Musculares/diagnóstico , Doenças Musculares/genética , Pneumonia/diagnóstico , Atrofia Muscular
12.
Nanoscale ; 15(30): 12670-12678, 2023 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-37465858

RESUMO

We report carrier relaxation dynamics in semiconducting tellurium nanowires (average diameter ∼ 10 nm) using ultrafast time-resolved terahertz spectroscopy. After photoexcitation using an 800 nm pump pulse, we observed an initial increase in the THz conductivity due to the absorption of THz radiation by photoexcited carriers. The time evolution of the differential conductivity (Δσ(τpp) = σpump on(τpp) - σpump off) shows a bi-exponential relaxation with the initial fast decay time scale of τ1 ∼ 25 ps followed by a longer relaxation time constant of τ2 ∼ 100 ps. Interestingly, the two time scales depend on the amount of the capping agent present on the surface of TeNWs, showing a faster relaxation of the photoexcited carriers as the percentage of capping decreases. This is physically interpreted as the surface state mediated relaxation mechanism of the photo-pumped carriers depending on the density of available surface states. A quantitative understanding is obtained using a coupled rate equation model taking into account the decay mechanisms determined from the surface mediated relaxation rate (DS) and direct recombination rate (DR) of the electron-hole pairs. Furthermore, the measured lattice temperature (TL) dependent dynamics, showing a faster relaxation at lower temperature, is understood using the same rate equation model, giving a power law dependence of the electron-hole recombination rate (DR) on TL as DR ∝ TL-1/2. This is explained by estimating DR using the van Roosbroeck-Shockley theory taking into account the density of states () of one-dimensional nanowires. Furthermore, to understand the measured frequency-dependent THz photoconductivity, we model Δσ(ω) using the Boltzmann transport equation taking into account the energy-dependent scattering rates showing the dominant role of short range (Γsr) and Coulomb scattering (ΓC) rates in the relaxation process, which further provides a measure of the charged and neutral impurity concentrations.

13.
Heliyon ; 9(5): e15965, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37251844

RESUMO

Background: In India, facility-based surveillance for congenital rubella syndrome (CRS) was initiated in 2016 to estimate the burden and monitor the progress made in rubella control. We analyzed the surveillance data for 2016-2021 from 14 sentinel sites to describe the epidemiology of CRS. Method: We analyzed the surveillance data to describe the distribution of suspected and laboratory confirmed CRS patients by time, place and person characteristics. We compared clinical signs of laboratory confirmed CRS and discarded case-patients to find independent predictors of CRS using logistic regression analysis and developed a risk prediction model. Results: During 2016-21, surveillance sites enrolled 3940 suspected CRS case-patients (Age 3.5 months, SD: 3.5). About one-fifth (n = 813, 20.6%) were enrolled during newborn examination. Of the suspected CRS patients, 493 (12.5%) had laboratory evidence of rubella infection. The proportion of laboratory confirmed CRS cases declined from 26% in 2017 to 8.7% in 2021. Laboratory confirmed patients had higher odds of having hearing impairment (Odds ratio [OR] = 9.5, 95% confidence interval [CI]: 5.6-16.2), cataract (OR = 7.8, 95% CI: 5.4-11.2), pigmentary retinopathy (OR = 6.7, 95 CI: 3.3-13.6), structural heart defect with hearing impairment (OR = 3.8, 95% CI: 1.2-12.2) and glaucoma (OR = 3.1, 95% CI: 1.2-8.1). Nomogram, along with a web version, was developed. Conclusions: Rubella continues to be a significant public health issue in India. The declining trend of test positivity among suspected CRS case-patients needs to be monitored through continued surveillance in these sentinel sites.

15.
BMJ Case Rep ; 16(5)2023 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-37202112

RESUMO

A male infant born out of non-consanguineous marriage to a primigravida presented to us as his third hospitalisation with ichthyotic lesions all over the body, cholestatic jaundice, multiple joint contractures and a history of recurrent sepsis. Blood and urine investigations revealed Fanconi syndrome, hypothyroidism and direct hyperbilirubinaemia with elevated liver enzymes and normal gamma glutamyl transpeptidase levels. The combination of arthrogryposis, renal dysfunction and cholestasis led to the suspicion of arthrogryposis, renal tubular dysfunction, cholestasis (ARC) syndrome, which was then proved by genetic testing. The baby was managed conservatively with respiratory support, antibiotics, multivitamins, levothyroxine and other supportive measures but succumbed to the illness on day 15 of hospitalisation. Genetic analysis using next-generation sequencing was confirmatory of a homozygous mutation in VIPAS39 gene leading to ARC syndrome type 2 in the present case. Genetic counselling was provided and prenatal testing was advised to the parents for future pregnancies.


Assuntos
Artrogripose , Colestase , Icterícia Obstrutiva , Insuficiência Renal , Lactente , Recém-Nascido , Humanos , Masculino , Artrogripose/diagnóstico , Artrogripose/genética , Colestase/diagnóstico , Colestase/genética , Colestase/patologia , Insuficiência Renal/diagnóstico , Insuficiência Renal/etiologia , Icterícia Obstrutiva/diagnóstico , Icterícia Obstrutiva/etiologia , Proteínas de Transporte Vesicular/genética
16.
Early Hum Dev ; 179: 105751, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36933439

RESUMO

BACKGROUND: Infants of diabetic mothers (IDMs) develop interventricular septal hypertrophy (ISH) (> 6 mm) [1]. The proportion of IDMs developing ISH varies from country to country. Maternal HbA1c and cord blood Insulin-like growth factor-1 (IGF-1) levels have been found useful to predict ISH. METHODS: This was a case-control study of term neonates of diabetic mothers (cases) and of non-diabetic mothers (controls) to evaluate echocardiographic (ECHO) differences among cases and controls and to find the correlation of interventricular septal thickness (IVS) thickness with maternal HbA1C and cord blood IGF-1 levels. RESULTS: Of 32 cases and 34 controls (mean gestational age 37.7 ± 0.9 weeks), 15 (46.8 %) cases, no control developed ISH. Septal thickness was more (6 ± 0.15 cm vs 3 ± 0.06 cm; p = 0.027) in cases than controls. Functional ECHO parameters including left ventricle ejection fraction were comparable (p = 0.9) among the two groups. Maternal HbA1C levels were higher (6.5 % ± 1.3 vs 3.6 % ± 0.7; p = 0.001) with a positive correlation with IVS (Pearson's coefficient 0.784, p < 0.001). Cord blood IGF1 levels were too higher in cases (99.1 ± 6.09 ng/ml vs 37.1 ± 2.99 ng/ml; p < 0.001) with moderate correlation with IVS thickness (Pearson's coefficient 0.402; p = 0.00). Receiver operator curve analysis showed, that at a cut-off of 72 ng/ml, cord blood IGF1 predicted ISH with 72 % sensitivity; 88 % specificity and at a cut-off of 7.35 %, maternal HbA1c predicted ISH with sensitivity; specificity of 93.8 % and 72.1 % respectively. CONCLUSION: ISH was present in 46.8 % in cases as compared to none in controls. IVS thickness correlated well with maternal HbA1C and moderately with cord blood IGF-1 levels. Functional parameters on ECHO were unaffected by maternal diabetic control. At the cut-off of maternal HbA1c of 7.35 % and cord blood IGF-1 of 72 ng /ml, babies need to be monitored clinically with ECHO to look for ISH.


Assuntos
Diabetes Mellitus , Fator de Crescimento Insulin-Like I , Recém-Nascido , Feminino , Humanos , Lactente , Fator de Crescimento Insulin-Like I/análise , Peso ao Nascer , Hemoglobinas Glicadas , Sangue Fetal/química , Estudos de Casos e Controles , Hipertrofia
17.
ACS Appl Mater Interfaces ; 15(4): 5086-5098, 2023 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-36669233

RESUMO

High-performance energy storage devices (HPEDs) play a critical role in the realization of clean energy and thus enable the overarching pursuit of nonpolluting, green technologies. Supercapacitors are one class of such lucrative HPEDs; however, a serious limiting factor of supercapacitor technology is its sub-par energy density. This report presents hitherto unchartered pathway of physical deformation, chemical dealloying, and microstructure engineering to produce ultrahigh-capacitance, energy-dense NiMn alloy electrodes. The activated electrode delivered an ultrahigh specific-capacitance of 2700 F/cm3 at 0.5 A/cm3. The symmetric device showcased an excellent energy density of 96.94 Wh/L and a remarkable cycle life of 95% retention after 10,000 cycles. Transmission electron microscopy and atom probe tomography studies revealed the evolution of a unique hierarchical microstructure comprising fine Ni/NiMnO3 nanoligaments within MnO2-rich nanoflakes. Theoretical analysis using density functional theory showed semimetallic nature of the nanoscaled oxygen-vacancy-rich NiMnO3 structure, highlighting enhanced carrier concentration and electronic conductivity of the active region. Furthermore, the geometrical model of NiMnO3 crystals revealed relatively large voids, likely providing channels for the ion intercalation/de-intercalation. The current processing approach is highly adaptable and can be applied to a wide range of material systems for designing highly efficient electrodes for energy-storage devices.

18.
Med Sci (Basel) ; 10(4)2022 12 04.
Artigo em Inglês | MEDLINE | ID: mdl-36548002

RESUMO

Background-Previous studies on coronavirus disease 2019 (COVID-19) were limited to specific geographical locations and small sample sizes. Therefore, we used the National Inpatient Sample (NIS) 2020 database to determine the risk factors for severe outcomes and mortality in COVID-19. Methods-We included adult patients with COVID-19. Univariate and multivariate logistic regression was performed to determine the predictors of severe outcomes and mortality in COVID-19. Results-1,608,980 (95% CI 1,570,803-1,647,156) hospitalizations with COVID-19 were included. Severe complications occurred in 78.3% of COVID-19 acute respiratory distress syndrome (ARDS) and 25% of COVID-19 pneumonia patients. The mortality rate for COVID-19 ARDS was 54% and for COVID-19 pneumonia was 16.6%. On multivariate analysis, age > 65 years, male sex, government insurance or no insurance, residence in low-income areas, non-white races, stroke, chronic kidney disease, heart failure, malnutrition, primary immunodeficiency, long-term steroid/immunomodulatory use, complicated diabetes mellitus, and liver disease were associated with COVID-19 related complications and mortality. Cardiac arrest, septic shock, and intubation had the highest odds of mortality. Conclusions-Socioeconomic disparities and medical comorbidities were significant determinants of mortality in the US in the pre-vaccine era. Therefore, aggressive vaccination of high-risk patients and healthcare policies to address socioeconomic disparities are necessary to reduce death rates in future pandemics.


Assuntos
COVID-19 , Síndrome do Desconforto Respiratório , Vacinas , Adulto , Humanos , Masculino , Estados Unidos/epidemiologia , Idoso , Estudos Retrospectivos , Pacientes Internados , SARS-CoV-2 , Fatores de Risco , Síndrome do Desconforto Respiratório/epidemiologia
19.
Ann Oper Res ; : 1-22, 2022 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-36407940

RESUMO

Misinformation or fake news has had multifaceted ramifications with the onset of the Covid-19 pandemic, creating widespread panic amongst people. This study investigates the impact of misinformation/ fake news (on internet platforms) on consumer buying behavior, impact of fear (created by fake news) on hoarding of essential products and consumer spending and finally impact of misinformation-induced panic buying on supply chain disruptions. It draws upon the consumer decision theory and the cognitive load theory for explaining the psychological and behavioral responses of consumers. The study follows an inductive approach towards theory building using a multi-method approach. Initially, a qualitative research method based on interviews followed by text-mining has been used followed by analysis using python for topic modelling using Latent Dirichlet Allocation (LDA). The findings revealed several prominent themes like consumer shift to online buying, two contrasting spending intentions namely financial security and compensatory consumptions, irrational panic buying, uncertainty/ambiguity of government protocol and norms, social media fraudulent practices and misinformation dissemination, personalized buying experience, reduced trust on news and marketers, logistics and transportation bottlenecks, labor shortage due to migration and plant closures, and bullwhip effect in supply chains.

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