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1.
Pathog Glob Health ; : 1-14, 2022 Sep 30.
Article in English | MEDLINE | ID: covidwho-20240314

ABSTRACT

Malaria in Pregnancy (MiP) leading to morbidity and mortality is a major public health problem that poses significant risk to pregnant women and their fetus. To cope with this alarming situation, administration of Sulfadoxine-pyrimethamine (SP) drugs to pregnant women as an intermittent preventive treatment (IPT) from 16 weeks of gestation is recommended by the World Health Organization (WHO) guidelines. We conducted a comprehensive search of published articles related to MiP in last 10 years with predefined keywords or their synonyms. The mapping of malaria in pregnant women showed a prevalence rate up to 35% in many countries. Although IPTp-SP has been implemented in endemic regions since several years but the IPTp-SP coverage percentage vary from country to country and continue to remain below the target of 80%. Major reasons for low IPTp-SP involve gestational age at first prenatal visit, level of education, place of residence, knowledge of IPTp-SP benefits, and use of antenatal services. Several challenges including the emergence of septuple and octuple SP-resistant parasites is reported from many countries which make the prophylactic use of IPTp-SP currently debatable. This narrative review addresses the barriers for optimal use of IPTp-SP and discusses alternative approaches to increase the use and effectiveness of SP intervention for preventing MiP. The COVID pandemic has drastically affected the public health disrupting the management of diseases worldwide. In view of this, a brief summary of COVID impact on MiP situation is also included.

2.
Natl Acad Sci Lett ; : 1-4, 2023 May 26.
Article in English | MEDLINE | ID: covidwho-20238230

ABSTRACT

This paper reviews the food security status during the COVID-19. Food insecurity occurred due to disruptions in food production, food supply chain, implementation of the National Food Security Act (NFSA), and employment and income. Lockdown and shutdown had adversely affected the sowing of crops and harvesting in India. Food processing and supply chain were affected during the pandemic; the distribution of free ration till November 2020, apart from entitlement under NFSA, did not solve the problem of food insecurity. Retrenchment of workers from firms, migration to their villages, and saturation of rural farm wages have decreased people's income and changed their food security status. This article adds perspectives on challenges posed by food insecurity during the pandemic and provides policy recommendations to mitigate those.

3.
Cureus ; 15(5): e39255, 2023 May.
Article in English | MEDLINE | ID: covidwho-20233243

ABSTRACT

One-stage total correction is known to be anatomically unsuitable for correcting tetralogy of fallot (TOF) in a certain proportion of children. Surgeons are thus faced with dilemmas regarding which preliminary operation for the anomaly to do first. Brock's primary postulation suggests that pulmonary trunk and annulus enlargement leading to the correction of the outflow obstruction will favor the subsequent total correction. In line with this, the current article presents two patients who were 6 months and 5 years old. The first patient underwent primary Brock's operation while the second patient had a blocked modified Blalock-Taussig's shunt (MBTS) done off-pump. Following the discontinuation of anti-platelet medications, the MBTS blocked and the patient was subsequently considered for secondary Brock's operation. The outcome of both procedures involved the patients' discharge with uneventful hospital stays and regular follow-ups at specified intervals. Thus, Brock's operation is an excellent preliminary palliative procedure for one-stage total correction of TOF. There is a need to revive 'Brock's procedure' for patients with TOF and poor pulmonary artery anatomy as the procedure of choice. The first direct intra-cardiac operation aimed at directly addressing the pathological anatomy on its Diamond Jubilee Year.

4.
Vacunas ; 2023 Apr 25.
Article in English | MEDLINE | ID: covidwho-2309087

ABSTRACT

The outbreak of SARS-CoV-2, an etiologic agent of the COVID-19 pandemic disease in late December 2019 has left the whole world aghast with huge health and economic losses. Due to a lack of specific knowledge and understanding at the initial stages, an unprecedented rise in COVID-19 cases has been recorded globally. Various preventive measures and strategies were implemented, however, for the radical control of SARS-CoV-2 infections; it seems that the only effective way to control the ongoing infections is large-scale vaccination. So far, WHO has approved 11 vaccines for emergency use namely Pfizer/BioNTech, Oxford/Astra Zeneca, Johnson and Johnson, Moderna, Covilo, Novavax, Covovax, Spikevax, Can Sino, Comirnaty, and Coronavac while five other needs approval. The worldwide vaccination dataset reveals that 65.7% of the world population has received their first dose of the COVID-19 vaccine. As a consequence of the proactive implementation of India's vaccination program, a historical milestone of administering over 1.9 billion doses of COVID-19 vaccines have been achieved on 19th May 2022. This review summarizes the different types of traditional and modern vaccine designing strategies with an emphasis on COVID-19. Moreover, the review highlights the status of vaccines for COVID-19 approved in India which includes both indigenous and non-indigenous vaccines. The present article also encompasses vaccine designing and developmental strategies, efficacy, safety profile and usage among the population, and the efficacy of modern vaccines over traditional ones.


El brote de SARS-CoV-2, un agente etiológico de la enfermedad pandémica COVID-19, a fines de diciembre de 2019, ha dejado al mundo entero horrorizado con enormes pérdidas económicas y de salud. Debido a la falta de conocimiento y comprensión específicos en las etapas iniciales, se ha registrado un aumento sin precedentes en los casos de COVID-19 a nivel mundial. Sin embargo, se implementaron diversas medidas y estrategias preventivas para el control radical de las infecciones por SARS-CoV-2; parece que la única forma eficaz de controlar las infecciones en curso es la vacunación a gran escala. Hasta el momento, la OMS ha aprobado 11 vacunas para uso de urgencia Pfizer/BioNTech, Oxford/Astra Zeneca, Johnson and Johnson, Moderna, Covilo, Novavax, Covovax, Spikevax, Can Sino, Comirnaty y Coronavac, mientras que otras cinco necesitan aprobación. El conjunto de datos de vacunación mundial revela que el 65,7% de la población mundial ha recibido su primera dosis de la vacuna COVID-19. Como consecuencia de la implementación proactiva del programa de vacunación de la India, el 19 de mayo de 2022 se logró un hito histórico de administrar más de 1900 millones de dosis de vacunas contra el COVID-19. Esta revisión resume los diferentes tipos de estrategias de diseño de vacunas tradicionales y modernas con énfasis sobre COVID-19. Además, la revisión destaca el estado de las vacunas para COVID-19 aprobadas en India, que incluye vacunas tanto indígenas como no indígenas. El presente artículo también abarca estrategias de diseño y desarrollo de vacunas, eficacia, perfil de seguridad y uso entre la población, y la eficacia de las vacunas modernas sobre las tradicionales.

5.
Vacunas ; 2023.
Article in English | EuropePMC | ID: covidwho-2297167

ABSTRACT

The outbreak of SARS-CoV-2, an etiologic agent of the COVID-19 pandemic disease in late December 2019 has left the whole world aghast with huge health and economic losses. Due to a lack of specific knowledge and understanding at the initial stages, an unprecedented rise in COVID-19 cases has been recorded globally. Various preventive measures and strategies were implemented, however, for the radical control of SARS-CoV-2 infections;it seems that the only effective way to control the ongoing infections is large-scale vaccination. So far, WHO has approved 11 vaccines for emergency use Pfizer/BioNTech, Oxford/Astra Zeneca, Johnson and Johnson, Moderna, Covilo, Novavax, Covovax, Spikevax, Can Sino, Comirnaty, and Coronavac while five other needs approval. The worldwide vaccination dataset reveals that 65.7% of the world population has received their first dose of the COVID-19 vaccine. As a consequence of the proactive implementation of India's vaccination program, a historical milestone of administering over 1.9 billion doses of COVID-19 vaccines have been achieved on 19th May 2022. This review summarizes the different types of traditional and modern vaccine designing strategies with an emphasis on COVID-19. Moreover, the review highlights the status of vaccines for COVID-19 approved in India which includes both indigenous and non-indigenous vaccines. The present article also encompasses vaccine designing and developmental strategies, efficacy, safety profile and usage among the population, and the efficacy of modern vaccines over traditional ones.

6.
Pharmaceuticals (Basel) ; 16(3)2023 Mar 01.
Article in English | MEDLINE | ID: covidwho-2304130

ABSTRACT

The development of potent non-nucleoside inhibitors (NNIs) could be an alternate strategy to combating infectious bovine viral diarrhea virus (BVDV), other than the traditional vaccination. RNA-dependent RNA polymerase (RdRp) is an essential enzyme for viral replication; therefore, it is one of the primary targets for countermeasures against infectious diseases. The reported NNIs, belonging to the classes of quinolines (2h: imidazo[4,5-g]quinolines and 5m: pyrido[2,3-g] quinoxalines), displayed activity in cell-based and enzyme-based assays. Nevertheless, the RdRp binding site and microscopic mechanistic action are still elusive, and can be explored at a molecular level. Here, we employed a varied computational arsenal, including conventional and accelerated methods, to identify quinoline compounds' most likely binding sites. Our study revealed A392 and I261 as the mutations that can render RdRp resistant against quinoline compounds. In particular, for ligand 2h, mutation of A392E is the most probable mutation. The loop L1 and linker of the fingertip is recognized as a pivotal structural determinant for the stability and escape of quinoline compounds. Overall, this work demonstrates that the quinoline inhibitors bind at the template entrance channel, which is governed by conformational dynamics of interactions with loops and linker residues, and reveals structural and mechanistic insights into inhibition phenomena, for the discovery of improved antivirals.

7.
Bioinformation ; 18(4):432-437, 2022.
Article in English | EuropePMC | ID: covidwho-2287704

ABSTRACT

SARS-CoV-2 (Severe Acute Respiratory Syndrome), a causative agent of COVID-19 disease created a pandemic situation worldwide. Nsp15 is a uridine specific endoribonuclease encoded by the genome of SARS-CoV-2. It plays important role in processing viral RNA and, thus evades the host immune system. Therefore, it is of interest to identify mutants of nsp15 amongst Asian SARS-CoV-2 isolates, where a total of 1795 mutations, from 7793 sequences of Asia submitted till 31st January 2022, amongst which A231V, H234Y, K109N, K259R and S261A mutations were found frequent. Hence, we report data on the predicted secondary structure of wild type form followed by hydropathy plot, physiochemical properties, Ramachandran plot, B-cell epitopes prediction and protein modeling of wild type and mutant of nsp15 protein. Data shows that nsp15 of SARS-CoV-2 is a pontential candidate for the development of vaccine to control the infections of SARS-CoV-2.

8.
J Family Med Prim Care ; 11(11): 7493-7494, 2022 Nov.
Article in English | MEDLINE | ID: covidwho-2261620
9.
J Family Med Prim Care ; 11(11): 6660-6667, 2022 Nov.
Article in English | MEDLINE | ID: covidwho-2267391

ABSTRACT

Ivermectin was popular drug on trial for preventive and therapeutic role in COVID-19. However, there is disagreement concerning the validity of its clinical efficacy. Hence, we conducted a Meta-analysis and Systematic review for effect of Ivermectin Prophylaxis in prevention of COVID-19. The online databases of PubMed (Central), Medline, and Google scholar for randomized controlled trials, non-randomized trial and prospective cohort study were searched up to March 2021. Nine studies were included for analysis, out of which four were Randomized controlled Trial (RCTs), Two Non-RCTs and three cohort studies. Four randomized trial evaluated prophylactic drug Ivermectin, two combination of topical nasal carrageenan and oral Ivermectin two study used in combination of personal protective equipment (PPE) one with Ivermectin and one with Ivermectin/ Iota-Carrageenan (IVER/IOTACRC). In the pooled analysis we observed non-significant less COVID-19 positivity rate in the prophylaxis group as compared with non-prophylaxis group (Relative Risk (RR) = 0.27 and Confidence Interval (CI) = 0.05, 1.41) with significant heterogeneity (I2 = 97.1%, P < 0.001) The pooled analysis involving the Non-RCTs studies also did not observe significant reduction in the COVID-19 positivity rate in the prophylaxis group as compared with non-prophylaxis group (RR = 0.01 and CI = 0.00, 7.97) with significant heterogeneity between the studies (P < 0.001).Hence,we conclude that Ivermectin is not the 'magical silver weapon' against COVID-19.

10.
Cureus ; 15(2): e35452, 2023 Feb.
Article in English | MEDLINE | ID: covidwho-2252145

ABSTRACT

Newborns with untreated single ventricles develop pulmonary vascular diseases early in their lives. At that age, during the first eight weeks after birth, clinicians perform pulmonary artery (PA) banding to reduce the blood flow to the lung, decreasing the likelihood of future high vascular resistance or pressure. PA banding is also considered an initial stage in the process of single ventricle palliation procedures. We report a case of a 16-month-old toddler (7 kg) with room air saturation of 82%, diagnosed with tricuspid valve atresia, large atrial and ventricular septal defect, and hypoplastic right ventricle with severe pulmonary arterial hypertension. The baby underwent a successful surgical procedure of PA banding and was discharged after 13 days of hospital stay with a room air saturation of 89%. This case highlighted the benefit of PA banding beyond the stipulated period.

11.
J Med Imaging Radiat Sci ; 54(2): 364-375, 2023 06.
Article in English | MEDLINE | ID: covidwho-2241796

ABSTRACT

BACKGROUND: Prediction of outcomes in severe COVID-19 patients using chest computed tomography severity score (CTSS) may enable more effective clinical management and early, timely ICU admission. We conducted a systematic review and meta-analysis to determine the predictive accuracy of the CTSS for disease severity and mortality in severe COVID-19 subjects. METHODS: The electronic databases PubMed, Google Scholar, Web of Science, and the Cochrane Library were searched to find eligible studies that investigated the impact of CTSS on disease severity and mortality in COVID-19 patients between 7 January 2020 and 15 June 2021. Two independent authors looked into the risk of bias using the Quality in Prognosis Studies (QUIPS) tool. RESULTS: Seventeen studies involving 2788 patients reported the predictive value of CTSS for disease severity. The pooled sensitivity, specificity, and summary area under the curve (sAUC) of CTSS were 0.85 (95% CI 0.78-0.90, I2 =83), 0.86 (95% CI 0.76-0.92, I2 =96) and 0.91 (95% CI 0.89-0.94), respectively. Six studies involving 1403 patients reported the predictive values of CTSS for COVID-19 mortality. The pooled sensitivity, specificity, and sAUC of CTSS were 0.77 (95% CI 0.69-0.83, I2 = 41), 0.79 (95% CI 0.72-0.85, I2 = 88), and 0.84 (95% CI 0.81-0.87), respectively. DISCUSSION: Early prediction of prognosis is needed to deliver the better care to patients and stratify them as soon as possible. Because different CTSS thresholds have been reported in various studies, clinicians are still determining whether CTSS thresholds should be used to define disease severity and predict prognosis. CONCLUSION: Early prediction of prognosis is needed to deliver optimal care and timely stratification of patients.  CTSS has strong discriminating power for the prediction of disease severity and mortality in patients with COVID-19.


Subject(s)
COVID-19 , Humans , Tomography, X-Ray Computed , Prognosis , Patient Acuity
12.
J Biomol Struct Dyn ; : 1-10, 2021 Dec 16.
Article in English | MEDLINE | ID: covidwho-2232156

ABSTRACT

Intraviral protein-protein interactions are crucial for replication, pathogenicity, and viral assembly. Among these, virus assembly is a critical step as it regulates the arrangements of viral structural proteins and helps in the encapsulation of genomic material. SARS-CoV-2 structural proteins play an essential role in the self-rearrangement, RNA encapsulation, and mature virus particle formation. In SARS-CoV, the membrane protein interacts with the envelope and spike protein in Endoplasmic Reticulum Golgi Intermediate Complex (ERGIC) to form an assembly in the lipid bilayer, followed by membrane-ribonucleoprotein (nucleocapsid) interaction. In this study, we tried to understand the interaction of membrane protein's interaction with envelope, spike, and nucleocapsid proteins using protein-protein docking. Further, simulation studies were performed up to 100 ns to examine the stability of protein-protein complexes of Membrane-Envelope, Membrane-Spike, and Membrane-Nucleocapsid proteins. Prime MM-GBSA showed high binding energy calculations for the simulated structures than the docked complex. The interactions identified in our study will be of great importance, as it provides valuable insight into the protein-protein complex, which could be the potential drug targets for future studies.Communicated by Ramaswamy H. Sarma.

13.
Psychooncology ; 2022 Sep 08.
Article in English | MEDLINE | ID: covidwho-2236230

ABSTRACT

OBJECTIVES: The primary outcome measures evaluated the financial toxicity and mental well-being of the oral cancer survivors. METHODS: A cross-sectional study of oral cancer survivors who were disease-free for more than 6 months after treatment and visited the hospital for a routine follow-up is included in the study. Mental well-being and financial toxicity were evaluated using the Depression, Anxiety, and Stress Scale - 21 (DASS 21) and Comprehensive Score for financial Toxicity (COST- Functional Assessment of Chronic Illness Therapy) questionnaires. A literature review was done to compare the results with financial toxicity and mental health in cancer patients from the pre-pandemic era. RESULTS: A total of 79 oral cancer survivors were included in the study, predominantly males (M: F = 10:1). The age ranged from 26 to 75 years (The median age is 49). The full-time employment dropped from 83.5% in the pre-treatment period to 21.5% post-treatment. Depression was observed in 58.2% and anxiety in 72.2%. Unemployed survivors were observed to have more depression (OR = 1.3, 95% confidence interval (CI) = 0.3-5.4, p = 0.6), anxiety (OR = 3.5, 95% CI = 0.3-21.2, p = 0.1) and stress (OR = 1.6, 95% CI = 0.3-6.6, p = 0.5) than rest of the cohort. On univariate analysis, unemployed survivors (M = 11.8 ± 3.8, p = 0.01) had significantly poorer financial toxicity scores. Survivors with depression (M = 16.4 ± 7.1, p = 0.06) and stress (M = 14.4 ± 6.8, p = 0.002) had poor financial toxicity scores. On multifactorial analysis of variance, current employment (p = 0.04) and treatment modality (p = 0.05) were significant factors impacting the financial toxicity. CONCLUSION: There is a trend towards increased incidence of depression, anxiety, and stress among oral cancer survivors compared to the literature from the pre-COVID era. There is significant financial toxicity among either unemployed or part-time workers. This calls for urgent public/government intervention to prevent the long-term impact of financial toxicity on survival and quality of life.

14.
Asian Journal of Medical Sciences ; 13(12):17-20, 2022.
Article in English | Academic Search Complete | ID: covidwho-2198400

ABSTRACT

The health-care system has encountered exceptional circumstances, experiencing unique challenges, and manifesting as acute challenges in health-care services due to the spread of COVID-19. Aims and Objectives: The present study aimed to report the difficulties faced by the anesthetists while performing a cesarean section under the subarachnoid block (SAB) in COVID-19 patients at a dedicated COVID Level 3 hospital. Materials and Methods: Twenty healthy anesthetists (six consultants and 14 postgraduate) aged 20–40 years performed 60 elective or emergency cesarean sections of known COVID-19-positive gravida patients aged 20–35 years with no comorbidity and no spine abnormality under the SAB. Anesthetist;s responses to the challenges faced while performing procedures wearing the Level 3 personal protective equipment were recorded using a pre-structure self-administered questionnaire. To quantify the intensity of these problems, all the physical and psychological difficulties were graded as mild, moderate, and severe. Results: In the present study, 75% experienced moderate-to-severe sweating, and 60% experienced moderate-to-severe headaches. A total of 45% experienced moderate-to-severe breathlessness. Though there was little difficulty in communication among doctors and staff, almost 75% of anesthetists faced it. The fear of contracting the disease and spreading it to the family members was expressed by 75–80% of anesthetists. Conclusion: The present scenario has increased physical stress and other psychological problems among health workers. Therefore, hospital support with regular psychological counseling sessions is needed for healthcare workers to cope with the current situation. [ FROM AUTHOR]

15.
J Family Med Prim Care ; 11(8): 4890-4891, 2022 Aug.
Article in English | MEDLINE | ID: covidwho-2201956
16.
Indian J Ophthalmol ; 71(1): 249-256, 2023 01.
Article in English | MEDLINE | ID: covidwho-2201801

ABSTRACT

Purpose: To report the clinico-demographic profile of rhino-orbito-cerebral mucormycosis (ROCM) in patients during the "second wave" of the COVID-19 pandemic in eastern India, and their ophthalmic manifestations at presentation to our tertiary institute. Methods: Cross-sectional study amongst patients presenting to our center based on their hospital records. Demographic information, history related to COVID-19, records of detailed ocular examination, and microbiological, radiological, and histopathological investigation were entered into an online worksheet and analyzed using SPSS 26.0. Results: A total of 219 patients with ROCM were treated from May to September 2021, and 110 of these had ocular manifestations at presentation (50.2%). The age of patients ranged from 22 to 83 years and the mean ± standard deviation (SD) age was 49.9 ± 12.9 years. Ninety (81.8%) patients had been diagnosed with diabetes mellitus, 31 (34%) had hypertension, and 10 had other comorbidities. The duration between the onset of COVID-19 and mucormycosis symptoms was 0 to 60 days with a mean ± SD interval of 20.9 ± 12.6 days. Fifty-six (50.9%) patients had a history of steroid use. Unrelenting ocular or facial pain was the most common presenting symptom, ptosis was the most common anterior segment manifestation, and ophthalmic artery occlusion was the most common posterior segment manifestation. Conclusion: Our data from eastern India reinforces the relationship between COVID-19, diabetes, corticosteroid use, and ROCM. Knowledge of various presenting anterior and posterior segment manifestations of the disease as described in the present study will guide clinicians to recognize the disease early and make every effort to prevent complications.


Subject(s)
COVID-19 , Mucormycosis , Orbital Diseases , Humans , Young Adult , Adult , Middle Aged , Aged , Aged, 80 and over , Mucormycosis/diagnosis , Mucormycosis/epidemiology , Cross-Sectional Studies , Tertiary Care Centers , Pandemics , COVID-19/complications , COVID-19/epidemiology , Risk Factors
17.
Water ; 15(1):51, 2023.
Article in English | MDPI | ID: covidwho-2167064

ABSTRACT

In recent decades, the accumulation and fragmentation of plastics on the surface of the planet have caused several long-term climatic and health risks. Plastic materials, specifically microplastics (MPs;sizes < 5 mm), have gained significant interest in the global scientific fraternity due to their bioaccumulation, non-biodegradability, and ecotoxicological effects on living organisms. This study explains how microplastics are generated, transported, and disposed of in the environment based on their sources and physicochemical properties. Additionally, the study also examines the impact of COVID-19 on global plastic waste production. The physical and chemical techniques such as SEM-EDX, PLM, FTIR, Raman, TG-DSC, and GC-MS that are employed for the quantification and identification of MPs are discussed. This paper provides insight into conventional and advanced methods applied for microplastic removal from aquatic systems. The finding of this review helps to gain a deeper understanding of research on the toxicity of microplastics on humans, aquatic organisms, and soil ecosystems. Further, the efforts and measures that have been enforced globally to combat MP waste have been highlighted and need to be explored to reduce its potential risk in the future.

18.
i-Manager's Journal of Educational Technology ; 19(2):1-6, 2022.
Article in English | ProQuest Central | ID: covidwho-2164587

ABSTRACT

In Biotechnology industry, training is the only way to nourish the scientific and technical skills of the key employees. There are numerous ways to train the employees through theoretical and practical knowledge-based training modules for Inhouse training, On-job training, task-specific training, hands-on training, external training, refresh training, combined Inhouse and On-job training, etc. The Training Cycle is a part of training that plays a crucial role in designing, conducting, and implementing exclusive and customized training modules. It contains various steps, such as identifying deficiencies, designing inputs and outputs, and identifying the learning strategy and effectiveness of the training module, and should be evaluated through a simple grading method. Based on the available literature, trainees can improve their subject knowledge through successive training sessions. In the pandemic spreading of COVID-19, the author has an opinion on how to design and execute their training modules effectively for upgrading the scientific and technical skills of key employees in biotechnology industries like production and quality control departments. Therefore, it is suggested that they may design, conduct, and implement their developed and customized training modules for the key employees of the production and quality control departments of any biotech industry. The industries can use these training modules effectively, as described in this article. It can also be a versatile tool for developing exclusive, customized, and effective training modules.

19.
ACS Appl Mater Interfaces ; 14(50): 55402-55413, 2022 Dec 21.
Article in English | MEDLINE | ID: covidwho-2160142

ABSTRACT

Breath monitoring and pulmonary function analysis have been the prime focus of wearable smart sensors owing to the COVID-19 outbreak. Currently used lung function meters in hospitals are prone to spread the virus and can result in the transmission of the disease. Herein, we have reported the first-ever wearable patch-type strain sensor for enabling real-time lung function measurements (such as forced volume capacity (FVC) and forced expiratory volume (FEV) along with breath monitoring), which can avoid the spread of the virus. The noninvasive and highly sensitive strain sensor utilizes the synergistic effect of two-dimensional (2D) silver flakes (AgFs) and one-dimensional (1D) silver nanowires (AgNWs), where AgFs create multiple electron transmission paths and AgNWs generate percolation networks in the nanocomposite. The nanocomposite-based strain sensor possesses a high optimized conductivity of 7721 Sm-1 (and a maximum conductivity of 83,836 Sm-1), excellent stretchability (>1000%), and ultrasensitivity (GFs of 35 and 87 when stretched 0-20 and 20-50%, respectively), thus enabling reliable detection of small strains produced by the body during breathing and other motions. The sensor patching site was optimized to accurately discriminate between normal breathing, quick breathing, and deep breathing and analyze numerous pulmonary functions, including the respiratory rate, peak flow, FVC, and FEV. Finally, the observed measurements for different pulmonary functions were compared with a commercial peak flow meter and a spirometer, and a high correlation was observed, which highlights the practical feasibility of continuous respiratory monitoring and pulmonary function analysis.


Subject(s)
COVID-19 , Nanocomposites , Nanowires , Humans , Silver , Lung
20.
Journal of Bone and Joint Diseases ; 36(2):27-32, 2021.
Article in English | ProQuest Central | ID: covidwho-2144195

ABSTRACT

Purpose: Coronavirus disease 2019 (COVID-19) pandemic has caused severe disruption of services for other health-related ailments. This study was done to assess change in practices of orthopedic surgeons, availability of proper training and personal protective equipment (PPEs), and changes in hospital setup/preparedness for the management of COVID-19 patients. Materials and Methods: A pan-India online survey was done among practicing orthopedic surgeons. Orthopedicians not practicing in India, trainees, and those who had left their practice before the pandemic were excluded from the study. Survey MonkeyR questionnaire and Google FormsR were sent to 10,055 orthopedicians, during the 7th week of nationwide lockdown in the month of May, 2020. Complete responses were received from 407 participants who were included in the final analysis. Results: Only a quarter (n = 100/407, 24.6%) of the doctors were visiting hospitals at a frequency similar to that before the pandemic. Onus of orthopedic care among COVID-19 suspected/diagnosed cases and routine COVID-19 patients were mainly borne by the government sector. Only 38.8% (n = 158/407) doctors felt that they received adequate training while 64.9% (n = 264/407) of the doctors had adequate supply of PPE kits. “Designation of specific areas of their hospitals exclusively for COVID-19 patients” was opined by 43.7% (n = 178/407), urgent diagnostic facilities by 52.8% (n = 215/407), and exclusive operation theaters by only 28.3% (n = 115/407) of the respondents. Conclusion: This study has shown a drastic fall in the frequency of hospital visits by orthopedic surgeons, predominant involvement of government sector orthopedicians, inadequate training of doctors and inadequate availability of PPE kits, lack of proper designated areas, operation theaters, and urgent diagnostic facilities for the management of COVID-19 patients.

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