Journal of Pulmonology and Respiratory Research最新文献

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The thoracoscopic approach in the management of parapneumonic pleural effusion in children 儿童肺旁胸腔积液的胸腔镜治疗
Journal of Pulmonology and Respiratory Research Pub Date : 2022-12-23 DOI: 10.29328/journal.jprr.1001041
Cheikhrouhou Taycir, Dhaou Mahdi Ben, E. Amal, Hbaieb Manar, Z. Mohamed, A. Mahfoudh, M. Riadh
{"title":"The thoracoscopic approach in the management of parapneumonic pleural effusion in children","authors":"Cheikhrouhou Taycir, Dhaou Mahdi Ben, E. Amal, Hbaieb Manar, Z. Mohamed, A. Mahfoudh, M. Riadh","doi":"10.29328/journal.jprr.1001041","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001041","url":null,"abstract":"Background: Parapneumonic pleural effusion is a relatively common entity and continues to be a major cause of morbidity in children. However, managing this disease is still a matter of controversy between surgical and non-surgical options. With the advancement of mini-invasive surgery, video-assisted thoracoscopic surgery (VATS) has become a mainstay in the treatment of parapneumonic effusion in children. This study aimed to evaluate the clinical characteristics and pathological features of parapneumonic pleural effusion in children and to explore the feasibility and safety of the thoracoscopic approach in the pediatric population. Methods: The clinical data of all patients who underwent VATS for parapneumonic effusion between 2007 and 2021 were analyzed retrospectively. Factors that were documented included demographic criteria, clinical manifestations, preoperative examinations, therapeutic procedures, intraoperative findings, postoperative complications, and outcomes. Results: Totally, 35 patients with a mean age of 5.14 ± 3.9 years were operated on thoracoscopically. The mean duration of evolution before VATS was 9 days ± 4. All children were hospitalized in a Pediatric Continuing Care Unit. Antibiotic therapy was administrated in combination in all cases. Corticosteroid therapy was used in 2 patients. Thoracentesis was performed in 6 patients. Thoracostomy tube drainage was placed before surgery in 11 patients. The average duration of drainage before VATS was 6 days ± 4. VATS decortication and/or debridement was indicated as second-line in 23 patients. The average duration of the surgery was 51 minutes (20 min - 115 min). There is no conversion to open surgery and no intraoperative procedure-dependent complication. 4 children have early complications after the VATS and one patient had a late postoperative complication. There were no deaths during the hospital stay or follow-up. Conclusion: In skilled hands, VATS is safe, feasible, and effective in the management of parapneumonic pleural effusion in children with excellent outcomes.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129802887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A case of allergic bronchopulmonary aspergillosis complicated by nocardiosis and staphylococcus aureus infection 过敏性支气管肺曲霉病合并诺卡菌病及金黄色葡萄球菌感染1例
Journal of Pulmonology and Respiratory Research Pub Date : 2022-12-19 DOI: 10.29328/journal.jprr.1001040
Kaur Harveen, Arora J, P. Naveen, Arora Anmol
{"title":"A case of allergic bronchopulmonary aspergillosis complicated by nocardiosis and staphylococcus aureus infection","authors":"Kaur Harveen, Arora J, P. Naveen, Arora Anmol","doi":"10.29328/journal.jprr.1001040","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001040","url":null,"abstract":"Nocardia is a ubiquitous organism and often causes serious fatal infections in immuno-compromised individuals. Staphylococcus aureus infection stimulates an inflammatory response that causes lung damage and facilitates subsequent chronic infection. Patients of allergic bronchopulmonary aspergillosis (ABPA) on steroids and immunosuppressants are particularly at risk of these infections. We present the case of a middle-aged man who was diagnosed to have ABPA by serological and radiographic criteria. He presented with fever, cough, and mucopurulent sputum. Subsequent sputum culture for bacteria and fungus revealed the growth of Staphylococcus aureus and Nocardia spp. respectively.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124582591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulmonary edema ex vacuo or unilateral shock lung: a case report 肺水肿或单侧肺休克1例
Journal of Pulmonology and Respiratory Research Pub Date : 2022-11-25 DOI: 10.29328/journal.jprr.1001039
Navil Abdelkader Mohamed, Irene Pastor Escatín, G. Galán Gil, Manuel Laguna Sastre José
{"title":"Pulmonary edema ex vacuo or unilateral shock lung: a case report","authors":"Navil Abdelkader Mohamed, Irene Pastor Escatín, G. Galán Gil, Manuel Laguna Sastre José","doi":"10.29328/journal.jprr.1001039","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001039","url":null,"abstract":"OPEN ACCESS Pulmonary edema is a rare but potentially life-threatening iatrogenic complication after treatment through therapeutic thoracentesis of a collapsed lung due to a hydroor pneumothorax. We present a case of a 25-years male, without any pathological antecedents, who went to our emergency services with dyspnoea, tachypnea, and hypoxemia. The inal diagnosis made after a clinical examination and chest X-ray showed a complete collapse of the right lung due to spontaneous pneumothorax [1-3] (Figure 1).","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127060927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulmonary congenital cystic adenomatoid malformation: a rare congenital abnormality in adults and review of literature 肺先天性囊性腺瘤样畸形:一种罕见的成人先天性畸形并文献复习
Journal of Pulmonology and Respiratory Research Pub Date : 2022-11-25 DOI: 10.29328/journal.jprr.1001038
Chaudhry Iftikhar Ahmed, Khan Mohammad Nasim, Alqahtani Yousif A, Alghamdi Abdullah, AlFraih Othman M, AlAbdulhai Meenal A, Chaudhry Ikram Ul-Haq
{"title":"Pulmonary congenital cystic adenomatoid malformation: a rare congenital abnormality in adults and review of literature","authors":"Chaudhry Iftikhar Ahmed, Khan Mohammad Nasim, Alqahtani Yousif A, Alghamdi Abdullah, AlFraih Othman M, AlAbdulhai Meenal A, Chaudhry Ikram Ul-Haq","doi":"10.29328/journal.jprr.1001038","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001038","url":null,"abstract":"Congenital cystic adenomatoid malformation of the lung (CCAM) is characterized by an adenomatoid proliferation of bronchiole-like structures and cysts formation. The condition is most commonly found in newborns and children and may be associated with other malformations; rarely, the presentation is delayed until adulthood. We herein report two cases of CCAM in adult patients. 22 years old healthy female with pre-employment health screening chest X-ray showed a lesion in the upper lobe of the right lung. In another case, a computed tomographic scan of the thorax (CT) confirmed a mass in the upper right lung. A 28-year-old male presented with recurrent respiratory tract infection resistant to antimicrobial therapy. CT scan of the thorax showed a mass in the left lung upper zone. Surgical resection was performed in both cases, and histopathology of the resected specimen showed both cases were consistent with the CCAM.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132192117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-term results of 10 years of observation of cured cases of pulmonary tuberculosis 长期观察10年肺结核治愈病例的效果
Journal of Pulmonology and Respiratory Research Pub Date : 2022-09-23 DOI: 10.29328/journal.jprr.1001036
O. Bobokhojaev
{"title":"Long-term results of 10 years of observation of cured cases of pulmonary tuberculosis","authors":"O. Bobokhojaev","doi":"10.29328/journal.jprr.1001036","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001036","url":null,"abstract":"Aim of the study: Conduct long-term monitoring of recovered patients with pulmonary TB and study the frequency of relapses of pulmonary TB and factors contributing to their development in the Republic of Tajikistan. Material and research methods: Of the total number of patients with pulmonary TB, 820 people in 2010-2011 after successful treatment, were transferred for further dispensary observation to PHC facilities, whose health status we monitored for 10 years (including 2020). Of the 820 patients, we were able to track the health status for 10 years in 622 patients (320 men and 302 women, age groups 19-44 years old - 330 people and 45-69 years old - 292 people). The rest - for various reasons were lost from further dispensary observation. All patients in PHC facilities annually during the period of dispensary observation underwent clinical, instrumental, laboratory, and X-ray examinations to exclude the recurrence of TB. Data for each patient were tracked using the National TB Registry OpenMRS data. Research results: The elimination of preventive anti-relapse measures in people with residual post-tuberculosis changes in the lungs led to an increase in the number of relapses of the disease. The analysis of the conducted studies shows that the incidence of relapses of pulmonary TB does not depend on the regions and the severity of TB burden, they often develop with insufficient follow-up after the end of treatment and inadequate preventive measures in dispensaries patients. The study of the reasons for the development of relapses makes it possible to timely identify a group of patients who need anti-relapse measures and prolongation of dispensary observation. Conclusion: Thus, the results of this observation revealed the occurrence of relapses within 10 years in 19.3% of cases. A retrospective analysis of the initial forms of the disease showed that relapses of pulmonary tuberculosis occurred more often in patients who had had fibrous-cavernous pulmonary tuberculosis, than in patients who had disseminated pulmonary TB, and less often after suffering infiltrative pulmonary TB. Relapses of the disease occurred more often in men aged 19-44 years. The results obtained indicate the development of relapses of pulmonary tuberculosis has a statistically significant dependence on the form of the initial disease, the presence of RPTCL, comorbid diseases such as HIV, diabetes mellitus, COPD, and the regularity of taking anti-TB drugs. At the same time, it turned out that the social status of all patients with relapses corresponds to the level of poverty, which should also be taken into account.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116098445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A case report of large bilateral pulmonary embolism in a patient with JAK2 positive mutation JAK2阳性突变患者发生双侧大肺栓塞1例
Journal of Pulmonology and Respiratory Research Pub Date : 2022-04-21 DOI: 10.29328/journal.jprr.1001035
Khan H. Zahid, Besis George
{"title":"A case report of large bilateral pulmonary embolism in a patient with JAK2 positive mutation","authors":"Khan H. Zahid, Besis George","doi":"10.29328/journal.jprr.1001035","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001035","url":null,"abstract":"Venous thromboembolism may be the primary presentation in patients with polycythemia Vera and essential thrombocythaemia and the incidence of venous thromboembolism increases with age [1]. The Janus kinase 2 (JAK2V617F) mutation is the main molecular marker of the Philadelphia-negative chronic myeloproliferative neoplasms, responsible for 95% of polycythemia; 50% of thrombocythemia Vera and myelofibrosis cases [2]. We report a case of 74 year-old-patient presenting with shortness of breath for 3 days. Past medical history (PMH) includes hypertension and previous basal cell carcinoma of the neck and nose for which patients had surgical reconstruction. The patient’s vital showed oxygen saturation of 94% on 15 Liters, tachycardia with heart rate > 110, blood pressure 110/60 mmHg, and respiratory rate of 27. Laboratory results showed D-Dimer > 80000 ng/mL, Troponin T 130 ng/l, and Haemoglobin 182 g/L. Computerized tomography pulmonary angiogram showed bilateral pulmonary emboli with right heart strain. He was given a treatment dose of Tinzaparin and underwent emergency EkoSonic™ Endovascular System-Directed Thrombolysis (EKOS). The patient stabilized post EKOS and his vital signs improved within a few hours after the procedure. Oxygen saturation improved to over 96% on 2-3 Liters and both tachycardia and tachypnoea improved. The patient has commenced on Apixaban 5 mg twice daily (BD). He tested positive for JAK2 mutation and met two major and one minor criterion for PV and was referred to Haematology for outpatient follow-up.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120953825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spontaneous pneumomediastinum: case report 自发性纵隔气肿1例
Journal of Pulmonology and Respiratory Research Pub Date : 2022-01-28 DOI: 10.29328/journal.jprr.1001034
Sergio Pedrós García, Elena Yakasova, María Roquet-Jalmar Saus, Nuria Gutiérrez González, Edwin Mercedes Noboa
{"title":"Spontaneous pneumomediastinum: case report","authors":"Sergio Pedrós García, Elena Yakasova, María Roquet-Jalmar Saus, Nuria Gutiérrez González, Edwin Mercedes Noboa","doi":"10.29328/journal.jprr.1001034","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001034","url":null,"abstract":"Pneumomediastinum is the presence of free air within the mediastinum. As a general rule, it occurs in the presence of underlying lung disease and if it does not exist, it is called spontaneous pneumomediastinum. We present a case of a 53 years old asthmatic patient which further investigation revealed to be consistent with spontaneous pneumomediastinum. He underwent medical treatment with relative rest, oxygen therapy, and prophylactic antibiotic therapy, in addition to his usual asthma treatment. There was a clinical and radiological improvement with complete passive reabsorption of air and the patient was discharged on the 4th day and referred to the pulmonology department for consultation. During 2 months follow-up period, there were no signs of recurrence.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122716631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effects of melatonin on liver and lung tissues of animals with bile duct ligation-induced hepatopulmonary syndrome 褪黑素对胆管结扎性肝肺综合征动物肝肺组织的影响
Journal of Pulmonology and Respiratory Research Pub Date : 2021-10-13 DOI: 10.29328/journal.jprr.1001033
D. AdrianE., Colares Josieli Raskopf, Bona Sílvia, De Andrade Lívia Barboza, Forgiarini Jr. Luiz Alberto, Bueno Aline Felicio, Dias Alexandre Simões, Marroni Norma Anair Possa
{"title":"Effects of melatonin on liver and lung tissues of animals with bile duct ligation-induced hepatopulmonary syndrome","authors":"D. AdrianE., Colares Josieli Raskopf, Bona Sílvia, De Andrade Lívia Barboza, Forgiarini Jr. Luiz Alberto, Bueno Aline Felicio, Dias Alexandre Simões, Marroni Norma Anair Possa","doi":"10.29328/journal.jprr.1001033","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001033","url":null,"abstract":"The objective was to assess the antioxidant effect of melatonin (MLT) on liver and lung tissues of animals with bile duct ligation (BDL)-induced hepato-pulmonary syndrome (HPS). A model of BDL-induced biliary cirrhosis was used in male Wistar rats. Results suggest that MLT has an antioxidant effect on liver and lung tissues in animals with BDL-induced HPS by higher activity of antioxidant enzymes in the group HPS treated with MLT and the histological analysis of lung parenchyma showing decreased damage in this same group, including other analysis described below.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"72 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116657421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Asthma and pregnancy prevalence in a developing country and their mortality outcomes 一个发展中国家的哮喘和妊娠患病率及其死亡率
Journal of Pulmonology and Respiratory Research Pub Date : 2021-09-06 DOI: 10.29328/journal.jprr.1001031
Aguilar-Rosas Raul, Martínez Jorge, Turcios Edgar, Castro Victor
{"title":"Asthma and pregnancy prevalence in a developing country and their mortality outcomes","authors":"Aguilar-Rosas Raul, Martínez Jorge, Turcios Edgar, Castro Victor","doi":"10.29328/journal.jprr.1001031","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001031","url":null,"abstract":"Background: Latin America has always had high maternal and infant mortality rates. However, the prevalence of asthma in pregnant patients and their outcomes are unknown. We aimed at answering those questions in a developing country’s maternity hospital. Methods: Since January 2011, a cohort of 591 pregnant asthma patients was prospectively recruited for 60 consecutive months. Patients were followed up by a multidisciplinary team until delivery. They were divided into two groups: one of 186 smokers or morbidly obese patients and another of 405 nonobese nonsmokers. Outcomes of mothers and their babies were documented. Results: Out of 57,031 deliveries, the overall estimated prevalence of 591 asthmatic pregnant patients was 1.03%. When adjusted for age standardized prevalence, it turned to 9.2%. With 28 maternal deaths (49 per 100,000 live births). None of these women had asthma. There were also 413 deaths among newborns (7.24/1000 live births). One occurred in the smoker/obese group (5.37/1000 live births) and two in the nonsmoker nonobese group (4.84/1000 live births). The prevalence of asthma during pregnancy seemed lower than in some affluent societies. Overall maternal mortality rates were similar to national figures; however, data on mothers’ mortality with asthma were unexpectedly absent. Conclusion: A multidisciplinary approach and the use of a low-cost inhaled steroid seemed to be the reasons for this. However, infant mortality rate remained high, which could be related to the risk of asthma itself. We believe there’s a worldwide need for agreements on a standardized approach for asthma’s epidemiological surveys, in order to make them comparable.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132196352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SARS-CoV-2 Infection, COVID-19, and long covid: Saga of erratic immune response, waning immunity, and immune system failure SARS-CoV-2感染、covid -19和长covid:免疫反应不稳定、免疫力下降和免疫系统衰竭的故事
Journal of Pulmonology and Respiratory Research Pub Date : 2021-08-09 DOI: 10.29328/journal.jprr.1001030
Vinod Nikhra
{"title":"SARS-CoV-2 Infection, COVID-19, and long covid: Saga of erratic immune response, waning immunity, and immune system failure","authors":"Vinod Nikhra","doi":"10.29328/journal.jprr.1001030","DOIUrl":"https://doi.org/10.29328/journal.jprr.1001030","url":null,"abstract":"Introduction - evolution of SARS-CoV-2 variants: With the unrestrained pandemic for over last one-and-half year, SARS-CoV-2 seems to have adapted to its habitat, the human host, through mutations that facilitate its replication and transmission. The G variant incorporating D614G mutation, potently more transmissible than the ancestral virus arose during January 2020 and spread widely. Since then, various SARS-CoV-2 variants of concern (VOCs) and variants of interest (VOIs) with higher infectivity or virulence or both, have evolved on the background of G variant, and spread widely. SARS-CoV-2 infection and the immunodynamics: As the virus becomes more transmissible, its lethality may drop. Apart from the humoral immunity, T-cell recognition from a previous SARS-CoV-2 infection or vaccination may modify the disease transmission correlates and its clinical manifestations. On the other hand, the immunity generated may reduce probability of re-infection as well as limit evolution of adaptive mutations, and emergence of highly infectious and immune-escape variants. There are complex issues related to the SARS-CoV-2 evolutionary dynamics and host’s immunodynamics. Trending etiopathoimmunological correlates: The evolution potential of SARS-CoV-2 is limited because of proofreading function of nsp14. The S protein mutations affect transmissibility, virulence, and vaccine efficacy. The D614G mutation in G variant with higher infectivity has turned the Chinese epidemic into a pandemic. Other SARS-CoV-2 variants, such as Alpha, Beta, Gamma, and Delta seem to have evolved as result of adaptation to selective pressures during periods of prolonged infections and subsequent transmission. Further, there is issue of convergent association of mutations. Basics of immunity and immune system failure: The nature of the immune response after natural SARS-CoV-2 infection is variable and diverse. There are pre-existing neutralizing antibodies and sensitized T cells elicited during previous infection with seasonal CoVs influencing the disease susceptibility and course. The virus has evolved adaptive mechanisms to reduce its exposure to IFN-I and there are issues related to erratic and overactive immune response. The altered neutralizing epitopes in the S protein in SARS-CoV-2 variants modify the immune landscapes and clinical manifestations. Conclusion: current scenarios and prospects: Presently, the SARS-CoV-2 infection is widespread with multiple evolving infectious variants. There is probability of its transition from epidemic to endemic phase in due course manifesting as a mild disease especially in the younger population. Conversely, the pandemic may continue with enhanced disease severity due to evolving variants, expanded infection pool, and changing immunity landscape. There is need to plan for the transition and continued circulation of the virus during the endemic phase or continuing pandemic for indefinite period.","PeriodicalId":398097,"journal":{"name":"Journal of Pulmonology and Respiratory Research","volume":"117 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116235240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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