K. K. Mujeeb Rahman, G. Durgeshwar, P. Mohapatra, M. K. Panigrahi, Siladitya Mahanty
{"title":"Pulmonary infarct masquerading as community-acquired pneumonia in the COVID-19 scenario: A case report","authors":"K. K. Mujeeb Rahman, G. Durgeshwar, P. Mohapatra, M. K. Panigrahi, Siladitya Mahanty","doi":"10.5320/wjr.v13.i1.1","DOIUrl":"https://doi.org/10.5320/wjr.v13.i1.1","url":null,"abstract":"BACKGROUND\u0000 Pulmonary embolism (PE) requires a high degree of clinical suspicion for its diagnosis and can mimic pneumonia due to its clinical, radiological, and laboratory findings. Co-existence of PE and pneumonia can also occur, which is surprisingly more common than appreciated.\u0000 CASE SUMMARY\u0000 Here, we report a case of a young male who initially presented during the peak of the coronavirus disease 2019 pandemic with features of pneumonia. He was kept under observation and was later diagnosed and treated for a right main pulmonary artery embolism without any identifiable source of thrombosis.\u0000 CONCLUSION\u0000 PE and pneumonia share common clinical, radiological, and laboratory findings that may delay the diagnosis of PE. Hypoxia disproportionate to the extent of radiological involvement could be an indicator of an underlying PE.","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"119 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140493846","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}
{"title":"Pulmonary arterial hypertension confirmed by right heart catheterization following COVID-19 pneumonia: A case report and review of literature","authors":"M. Henriques King, I. Ogbuka, V. Bond","doi":"10.5320/wjr.v12.i1.10","DOIUrl":"https://doi.org/10.5320/wjr.v12.i1.10","url":null,"abstract":"","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49480879","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}
{"title":"Monoclonal antibody for COVID-19: Unveiling the recipe of a new cocktail","authors":"JyotiVyas Bajpai, S. Kant, A. Verma, A. Pradhan","doi":"10.5320/wjr.v12.i1.1","DOIUrl":"https://doi.org/10.5320/wjr.v12.i1.1","url":null,"abstract":"","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42658853","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}
P. Hannun, Walter Hannun, Hugo Hyung Yoo, L. Resende
{"title":"Like father, like son: Pulmonary thromboembolism due to inflammatory or hereditary condition? Two case reports","authors":"P. Hannun, Walter Hannun, Hugo Hyung Yoo, L. Resende","doi":"10.5320/wjr.v11.i1.12","DOIUrl":"https://doi.org/10.5320/wjr.v11.i1.12","url":null,"abstract":"Like father, like son: Pulmonary thromboembolism due to inflammatory or hereditary condition? Two case reports","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41974155","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}
{"title":"SARS-CoV-2 with concurrent coccidioidomycosis complicated by refractory pneumothorax in a Hispanic male: A case report and literature review","authors":"Joscilin Mathew, S. Cherukuri, F. Dihowm","doi":"10.5320/wjr.v11.i1.1","DOIUrl":"https://doi.org/10.5320/wjr.v11.i1.1","url":null,"abstract":"SARS-CoV-2 with concurrent coccidioidomycosis complicated by refractory pneumothorax in a Hispanic male: A case report and literature review","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41500519","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}
{"title":"Personalising exacerbation prediction strategies in chronic obstructive pulmonary disease","authors":"P. Ellis, A. Turner","doi":"10.5320/wjr.v10.i2.11","DOIUrl":"https://doi.org/10.5320/wjr.v10.i2.11","url":null,"abstract":"COPD is one of the leading causes of mortality and morbidity worldwide. One of the most important features of this disease is exacerbations where a patient’s respiratory symptoms episodically worsen. Exacerbations accounted for over 140,000 hospital admissions in 2012 in the UK with considerably more exacerbations being treated in primary care. Despite significant research in this area in recent years, treatment of acute exacerbations in the community remains limited to oral glucocorticoids, antibiotics and bronchodilators. One of the issues with unpicking the complexity of exacerbations is trying to find out the exact underlying cause and mechanism that leads to symptoms and lung destruction. Currently symptoms are initially guided by symptoms alone though multiple causes of exacerbations have common presentations. This includes viral and bacterial infections and episodes relating to environmental triggers such as pollen and pollution. There is also evidence that cardiovascular factors can contribute to symptoms of breathlessness that can mimic COPD exacerbations. In this editorial we discuss recent advances in the use of precision medicine to more accurately treat exacerbations of COPD. This includes identification of phenotypes that could help","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44061337","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}
{"title":"Diagnosis and treatment of subsegmental pulmonary embolism","authors":"M. Newnham, A. Turner","doi":"10.5320/WJR.V9.I3.30","DOIUrl":"https://doi.org/10.5320/WJR.V9.I3.30","url":null,"abstract":"","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48914484","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}
K. Yamaguchi, T. Tsuji, K. Aoshiba, Hiroyuki Nakamura, S. Abe
{"title":"Anatomical backgrounds on gas exchange parameters in the lung","authors":"K. Yamaguchi, T. Tsuji, K. Aoshiba, Hiroyuki Nakamura, S. Abe","doi":"10.5320/WJR.V9.I2.8","DOIUrl":"https://doi.org/10.5320/WJR.V9.I2.8","url":null,"abstract":"Many problems regarding structure-function relationships have remained unsolved in the field of respiratory physiology. In the present review, we highlighted these uncertain issues from a variety of anatomical and physiological viewpoints. Model A of Weibel in which dichotomously branching airways are incorporated should be used for analyzing gas mixing in conducting and acinar airways. Acinus of Loeschcke is taken as an anatomical gas-exchange unit. Although it is difficult to define functional gas-exchange unit in a way entirely consistent with anatomical structures, acinus of Aschoff may serve as a functional gas-exchange unit in a first approximation. Based on anatomical and physiological perspectives, the multiple inert-gas elimination technique is thought to be highly effective for predicting ventilation-perfusion heterogeneity between acini of Aschoff under steady-state condition. Changes in effective alveolar PO2, the most important parameter in classical gas-exchange theory, are coherent with those in mixed alveolar PO2 decided from the multiple inert-gas elimination technique. Therefore, effective alveolar-arterial PO2 difference is considered useful for assessing gas-exchange abnormalities in lung periphery. However, one should be aware that although alveolar-arterial PO2 difference sensitively detects moderately low ventilation-perfusion regions causing hypoxemia, it is insensitive to abnormal gas exchange evoked by very low and high ventilation-perfusion regions. Pulmonary diffusing capacity for CO (DLCO) and the value corrected for alveolar volume (VAV), i.e. DLCO/VAV (KCO), are thought to be crucial for diagnosing alveolar-wall damages. DLCO-related parameters have higher sensitivity to detecting abnormalities in pulmonary microcirculation than those in the alveolocapillary membrane. We would like to recommend four categories derived from combining behaviors of DLCO with those of KCO for differential diagnosis on anatomically morbid states in alveolar walls: type-1 abnormality defined by decrease in both DLCO and KCO; type-2 abnormality by decrease in DLCO but increase in KCO; type-3 abnormality by decrease in DLCO but restricted rise in KCO; and type-4 abnormality by increase in both DLCO and KCO.","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47897650","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}
{"title":"Treatment of central sleep apnea in patients with heart failure: Now and future","authors":"A. Murata, T. Kasai","doi":"10.5320/WJR.V9.I1.1","DOIUrl":"https://doi.org/10.5320/WJR.V9.I1.1","url":null,"abstract":"","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42343783","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}
{"title":"Classical regression equations of spirometric parameters are not applicable for diagnosing spirometric abnormalities in adipotic adults","authors":"K. Yamaguchi, H. Omori, T. Tsuji, K. Aoshiba","doi":"10.5320/WJR.V8.I1.1","DOIUrl":"https://doi.org/10.5320/WJR.V8.I1.1","url":null,"abstract":"Classical regression equations of spirometric parameters are not applicable for diagnosing spirometric abnormalities in adipotic adults","PeriodicalId":91425,"journal":{"name":"World journal of respirology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45356473","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}