scholarly journals The Paradox of Happy Hypoxia in COVID 19

2021 ◽  
pp. 119-124
Author(s):  
Madhu Bansode ◽  
Pankaj Bansode
Keyword(s):  
Young Patients ◽  
The Elderly ◽  
Clinical Implications ◽  
X Rays ◽  
The Novel ◽  
Human Race ◽  
Self Monitoring ◽  
Diagnostic Modalities ◽  
High Index Of Suspicion ◽  
Rule Out

Ever since the human race has been exposed to the novel COVID 19 illness, newer and newer intriguing features of the COVID viral plethora are seen with each passing day. Many manifestations of the COVID 19 illness have been baffling and unexplainable to researchers currently. One such unusual presentation seen is ‘happy hypoxia’ or silent hypoxemia in a third of patients' total number. This review article is intending to put some light on the puzzling condition of happy hypoxia. We authors refer you through various theories postulated for happy hypoxia. It has definite clinical implications in the sense that it can be lifesaving if detected early and promptly in a COVID patient. We conclude that happy hypoxia or silent hypoxemia is a new entity and should be diagnosed with a high index of suspicion in COVID suspect patients in both young patients with no co morbidities and the elderly and diabetics. Diagnostic modalities like pulse oximeter should be widely used at hospitals and clinics and for self-monitoring by the patients at homes. Also, chest X-rays or HRCT imaging of the lungs is essential in the early stages to identify the early infective changes with compromised lung function and rule out this happy hypoxia. Also, further research is essential to find the exact ethologic of this subclinical though ominous prognostic entity.

Highlighting the Correlation Between Telomere Shortening and the Susceptibility to the Novel SARS-CoV-2 Virus (COVID-19)

2020 ◽  
Author(s):  
Aml Ghanem
Keyword(s):  
Telomere Length ◽  
Stress Responses ◽  
Viral Infections ◽  
Deep Understanding ◽  
The Elderly ◽  
The Novel ◽  
Telomere Shortening ◽  
Infection Pathways ◽  
And Gender ◽  
Demographic Distribution

COVID-19 is a global crisis that requires a deep understanding of infection pathways to facilitate the development of effective treatments and vaccines. Telomere, which is regarded as a biomarker for other respiratory viral infections, might influence the demographic distribution of COVID-19 infection and fatality rates. Viral infection can induce many cellular remodeling events and stress responses, including telomere specific alterations, just as telomere shortening. In brief, this letter aims to highlight the connection between telomere shortening and susceptibility to COVID-19 infection, in addition to changes in telomeric length according to the variation of age and gender of confirmed cases with COVID-19 infection. To sum up, the correlation is revealed from the available data that connect telomere length and COVID-19 infection, demonstrated in the fact that the elderly patients and males are more susceptible to COVID-19 due to shortening in their telomere length.

scholarly journals Molecular Detection of Mycobacterium tuberculosis in Oral Mucosa from Patients with Presumptive Tuberculosis

2020 ◽  
Vol 9 (12) ◽  
pp. 4124
Author(s):  
Barbara Molina-Moya ◽  
Nelly Ciobanu ◽  
Marta Hernandez ◽  
Cristina Prat-Aymerich ◽  
Valeriu Crudu ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Oral Mucosa ◽  
The Elderly ◽  
Storage Conditions ◽  
Molecular Diagnostic ◽  
Smear Microscopy ◽  
X Rays ◽  
Rt Pcr ◽  
Tuberculosis Complex ◽  
Tb 34

Tuberculosis (TB) diagnosis is increasingly based on the detection of Mycobacterium tuberculosis complex (MTBC) DNA in sputum using molecular diagnostic tests as the first test for diagnosis. However, sputum can be difficult to obtain in children, patients without productive cough, and the elderly and approaches testing non-sputum samples are needed. We evaluated whether TB can be detected from the oral mucosa of patients with TB. Adults with presumptive TB were examined using culture, Xpert MTB/RIF, smear microscopy and X-Rays. Oral mucosa swabs collected on PrimeStore-MTM, stored at room temperature if tested within 30 days or at −20 °C if examined at a later time. RT-PCR was performed to detect M. tuberculosis DNA. Eighty patients had bacteriologically-confirmed TB, 34 had bacteriologically-negative TB (negative tests but abnormal X-rays) and 152 were considered not to have TB (not TB). Oral swabs RT-PCR were positive in 29/80 (36.3%) bacteriologically-confirmed, 9/34 (26.5%) bacteriologically-negative and 29/152 (19.1%) not TB. The yield varied among samples stored for less and more than 30 days (p = 0.013) from 61% (11/18) and 29% (18/62) among bacteriologically confirmed, and 30.8% (4/13) and 23.8% (5/21) among bacteriologically-negative participants. Among not TB patients, the specificity was 80.9% (123/152), being 78.3% (18/23) among samples stored less than 30 days and 81.4% (105/129) among samples stored for more than 30 days (p = 0.46). The detection of M. tuberculosis in oral mucosa samples is feasible, but storage conditions may affect the yield.

scholarly journals Prehospital identification of Covid-19: an observational study

2021 ◽  
Vol 29 (1) ◽  
Author(s):  
Douglas Spangler ◽  
Hans Blomberg ◽  
David Smekal
Keyword(s):  
Predictive Value ◽  
Prehospital Care ◽  
The Novel ◽  
Test Results ◽  
Care Providers ◽  
Care Systems ◽  
Primary Hospital ◽  
Novel Coronavirus ◽  
Rule Out ◽  
Descriptive Statistical Analysis

Abstract Background The novel coronavirus disease 2019 (Covid-19) pandemic has affected prehospital care systems across the world, but the prehospital presentation of affected patients and the extent to which prehospital care providers are able to identify them is not well characterized. In this study, we describe the presentation of Covid-19 patients in a Swedish prehospital care system, and asses the predictive value of Covid-19 suspicion as documented by dispatch and ambulance nurses. Methods Data for all patients with dispatch, ambulance, and hospital records between January 1–August 31, 2020 were extracted. A descriptive statistical analysis of patients with and without hospital-confirmed Covid-19 was performed. In a subset of records beginning from April 14, we assessed the sensitivity and specificity of documented Covid-19 suspicion in dispatch and ambulance patient care records. Results A total of 11,894 prehospital records were included, of which 481 had a primary hospital diagnosis code related to-, or positive test results for Covid-19. Covid-19-positive patients had considerably worse outcomes than patients with negative test results, with 30-day mortality rates of 24% vs 11%, but lower levels of prehospital acuity (e.g. emergent transport rates of 14% vs 22%). About half (46%) of Covid-19-positive patients presented to dispatchers with primary complaints typically associated with Covid-19. Six thousand seven hundred seventy-six records were included in the assessment of predictive value. Sensitivity was 76% (95% CI 71–80) and 82% (78–86) for dispatch and ambulance suspicion respectively, while specificities were 86% (85–87) and 78% (77–79). Conclusions While prehospital suspicion was strongly indicative of hospital-confirmed Covid-19, based on the sensitivity identified in this study, prehospital suspicion should not be relied upon as a single factor to rule out the need for isolation precautions. The data provided may be used to develop improved guidelines for identifying Covid-19 patients in the prehospital setting.

scholarly journals Myocardial amyloidosis following multiple myeloma in a 38-year-old female patient: A case report

Open Medicine ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 396-402
Author(s):  
Qisi Zhang ◽  
Yingli Qiao ◽  
Dongmei Yan ◽  
Yuhui Deng ◽  
Mengyang Zhang ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Plasma Cells ◽  
Laboratory Data ◽  
Young Patients ◽  
Clinical Manifestations ◽  
The Elderly ◽  
First Episode ◽  
Rapid Progression ◽  
Congo Red Staining ◽  
Impaired Cardiac Function

AbstractMultiple myeloma (MM) is an immunoglobulin-producing tumor of plasma cells, which occurs commonly in the elderly. The incidence of myocardial amyloidosis with MM is extremely low and early clinical manifestations are nonspecific. The diversity of clinical manifestations and first episode symptoms often cause misdiagnosis in young patients with myocardial amyloidosis following MM. In this study, we analyzed the clinical data of a young woman with MM and impaired cardiac function combined with echocardiography, electrocardiography (ECG), laboratory data, cell Congo Red staining, and other manifestations to diagnose amyloidosis. Considering the rapid progression, short survival, and poor prognosis in most patients, a clear, definitive, and timely diagnosis is essential for the treatment of patients with MM complicated with myocardial amyloidosis.

scholarly journals Novel Radiographic Indexes for Elbow Stability Assessment: Part B—Preliminary Clinical Study

2021 ◽  
Author(s):  
Francesco Luceri ◽  
Davide Cucchi ◽  
Enrico Rosagrata ◽  
Carlo Eugenio Zaolino ◽  
Alessandra Menon ◽  
...  
Keyword(s):  
Case Series ◽  
Radiographic Evaluation ◽  
Healthy Population ◽  
X Rays ◽  
The Novel ◽  
Level Of Evidence ◽  
Orthopaedic Surgeons ◽  
Joint Congruency ◽  
Radiological Parameters ◽  
The Mean

Abstract Introduction The coronoid process plays a key-role in preserving elbow stability. Currently, there are no radiographic indexes conceived to assess the intrinsic elbow stability and the joint congruency. The aim of this study is to present new radiological parameters, which will help assess the intrinsic stability of the ulnohumeral joint and to define normal values of these indexes in a normal, healthy population. Methods Four independent observers (two orthopaedic surgeons and two radiologists) selected lateral view X-rays of subjects with no history of upper limb disease or surgery. The following radiographic indexes were defined: trochlear depth index (TDI); anterior coverage index (ACI); posterior coverage index (PCI); olecranon–coronoid angle (OCA); radiographic coverage angle (RCA). Inter-observer and intra-observer reproducibility were assessed for each index. Results 126 subjects were included. Standardized lateral elbow radiographs (62 left and 64 right elbows) were obtained and analysed. The mean TDI was 0.46 ± 0.06 (0.3–1.6), the mean ACI was 2.0 ± 0.2 (1.6–3.1) and the mean PCI was 1.3 ± 0.1 (1.0–1.9). The mean RCA was 179.6 ± 8.3° (normalized RCA: 49.9 ± 2.3%) and the mean OCA was 24.6 ± 3.7°. The indexes had a high-grade of inter-observer and intra-observer reliability for each of the four observers. Significantly higher values were found for males for TDI, ACI, PCI and RCA. Conclusion The novel radiological parameters described are simple, reliable and easily reproducible. These features make them a promising tool for radiographic evaluation both for orthopaedic surgeons and for radiologists in the emergency department setting or during outpatient services. Level of evidence Basic Science Study (Case Series). Clinical relevance The novel radiological parameters described are reliable, easily reproducible and become handy for orthopaedic surgeons as well as radiologists in daily clinical practice.

scholarly journals POS1288 TUBERCULOUS SPONDYLODISCITIS IN ELDERLY: EPIDEMIOLOGY, CLINICAL, FEATURES, TREATMENT AND OUTCOMES

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 926.1-926
Author(s):  
M. Mrabet ◽  
S. Boussaid ◽  
S. Jemmali ◽  
H. Sahli ◽  
H. Ajlani ◽  
...  
Keyword(s):  
Clinical Features ◽  
The Elderly ◽  
Lumbar Pain ◽  
Elderly Subjects ◽  
Normocytic Anemia ◽  
Imaging Features ◽  
X Rays ◽  
Significant Difference ◽  
Young Subjects ◽  
Tuberculous Spondylodiscitis

Background:Tuberculosis is still endemic all over the world. The incidence of tuberculous spondylodiscitis (TS) is steadily increasing. Clinical features and outcomes of this affection are various and depending on various parameters, including age.Objectives:Our objective was to explore the differences in presentation and the results of further investigations and the prognosis of TS between young and elderly subjects.Methods:We conduct a retrospective and descriptive study in a single rheumatology department. Data were collected from files of patients hospitalized in the past 20 years (2000-2020) who have been diagnosed with TS. We carried out a comparative study concerning the clinical biological, imaging features and outcomes between young subjects and subjects aged over 65 years.Results:Fifty-two cases of TS were collected (37F/15M). The mean age of the population was 55.21 years ± 17.79 [19-91]. Thirty-three patients (69.2%) were classified as young versus 16 elderly patients (30.8%), with female predominance in both groups (69.4% and 75% respectively, p = 0.57). Young subjects was more frequently vaccinated (88.9%) by Bacillus Calmette–Guérin (BCG) (p < 0.001). A delayed diagnosis was noted in both groups (p = 0.24). Lumbar spine involvement was the most common (57.7%). In the two age ranges, the onset of the disease was progressive (p = 0.22), characterized by segmental spine stiffness (p = 0.57) and lumbar pain with general signs (p = 0.27), such as: impaired general condition, fever, night sweats and weight loss. Biological inflammatory syndrome and normochrome normocytic anemia were encountered in both cases (p = 0.08 and p = 0.2, respectively). Standard X-rays and Computed tomography were more performed in young subjects (94.4% and 69.4%, respectively; p < 0.001), unlike magnetic resonance imaging which was more common in elderly subjects but with no statistically significant difference (p = 0.22). Disc pinch, erosion of vertebral plateaus and vertebral collapse were the major signs (82.7%, 65.4% and 67.3%, respectively). Clinical, biological and imaging arguments contributed to positive diagnosis in both groups (p = 0.24). Common medical treatment was anti-tuberculosis: Isoniazid (H), Rifampicin (R), Pyrazinamide (Z), Ethambutol (E) and physical treatment such as immobilization witch was more common in the eldery (56.3%, p = 0.16). The evolution of the disease was characterized by a clear improvement of young subjects during the second week of treatment (p < 0.001). A more frequent clinical improvement in older subjects was during the fourth week but with no statistically significant difference (p = 0.13). The occurrence of immediate complications was more frequent in the elderly (p = 0.23) with a predominance for drug complications (56.3%) such as: hepatic cytolysis (12.5%), hyperuricemia (18.8%) and major intolerance to anti-tuberculosis (18.8%).Conclusion:TS is a frequent condition that needs to be treated rapidly. the clinical presentation of TS in the elderly is less noisy which leads to more frequent complications and mortality.Disclosure of Interests:None declared

scholarly journals Clinical presentation, therapeutic approach, and outcome of young patients admitted for COVID-19, with respect to the elderly counterpart

2021 ◽  
Vol 21 (2) ◽  
pp. 249-268
Author(s):  
Martino Pepe ◽  
Charbel Maroun-Eid ◽  
Rodolfo Romero ◽  
Ramón Arroyo-Espliguero ◽  
Inmaculada Fernàndez-Rozas ◽  
...  
Keyword(s):  
Therapeutic Approach ◽  
Clinical Presentation ◽  
Young Patients ◽  
The Elderly

scholarly journals Objective Evaluation of Deep Uncertainty Predictions for COVID-19 Detection

2021 ◽  
Author(s):  
Hamzeh Asgharnezhad ◽  
Afshar Shamsi ◽  
Roohallah Alizadehsani ◽  
Abbas Khosravi ◽  
Saeid Nahavandi ◽  
...  
Keyword(s):  
Uncertainty Quantification ◽  
Performance Metrics ◽  
Confusion Matrix ◽  
Objective Evaluation ◽  
X Rays ◽  
The Novel ◽  
X Ray ◽  
Uncertainty Estimates ◽  
Chest X Ray ◽  
Novel Concept

Abstract Deep neural networks (DNNs) have been widely applied for detecting COVID-19 in medical images. Existing studies mainly apply transfer learning and other data representation strategies to generate accurate point estimates. The generalization power of these networks is always questionable due to being developed using small datasets and failing to report their predictive confidence. Quantifying uncertainties associated with DNN predictions is a prerequisite for their trusted deployment in medical settings. Here we apply and evaluate three uncertainty quantification techniques for COVID-19 detection using chest X-Ray (CXR) images. The novel concept of uncertainty confusion matrix is proposed and new performance metrics for the objective evaluation of uncertainty estimates are introduced. Through comprehensive experiments, it is shown that networks pertained on CXR images outperform networks pretrained on natural image datasets such as ImageNet. Qualitatively and quantitatively evaluations also reveal that the predictive uncertainty estimates are statistically higher for erroneous predictions than correct predictions. Accordingly, uncertainty quantification methods are capable of flagging risky predictions with high uncertainty estimates. We also observe that ensemble methods more reliably capture uncertainties during the inference. DNN-based solutions for COVID-19 detection have been mainly proposed without any principled mechanism for risk mitigation. Previous studies have mainly focused on on generating single-valued predictions using pretrained DNNs. In this paper, we comprehensively apply and comparatively evaluate three uncertainty quantification techniques for COVID-19 detection using chest X-Ray images. The novel concept of uncertainty confusion matrix is proposed and new performance metrics for the objective evaluation of uncertainty estimates are introduced for the first time. Using these new uncertainty performance metrics, we quantitatively demonstrate where and when we could trust DNN predictions for COVID-19 detection from chest X-rays. It is important to note the proposed novel uncertainty evaluation metrics are generic and could be applied for evaluation of probabilistic forecasts in all classification problems.

scholarly journals Challenges in the Diagnosis of Giant Cell Arteritis Before Visual Loss

2020 ◽  
pp. 1-5
Author(s):  
Purnima Mehta ◽  
Faaiq Hassan ◽  
Muhammed Omar Qadir ◽  
Shirish Dubey ◽  
Sergio Pagliarini ◽  
...  
Keyword(s):  
Giant Cell Arteritis ◽  
Giant Cell ◽  
Visual Loss ◽  
Systemic Vasculitis ◽  
The Elderly ◽  
Common Type ◽  
Atypical Presentation ◽  
Delay In Diagnosis ◽  
Atypical Presentations ◽  
High Index Of Suspicion

Background: Giant cell arteritis (GCA) is the most common type of systemic vasculitis affecting the elderly. Ophthalmic presentations of GCA in particular can be difficult to identify prior to permanent visual loss occurring. Methods: Here, we present 3 challenging cases as a retrospective series to highlight the variable presentations of GCA with ophthalmic involvement, but GCA was not suspected due to atypical presentation. Results: Unfortunately, all 3 cases went on to develop visual loss in the affected eye due to a delay in diagnosis or treatment. The authors wish to highlight the challenges posed to the referring clinicians, when patients had systemic/ocular co-morbidities, which delayed the suspicion of GCA Conclusion with a Practical Point: Our cases highlight the variable presentations of this condition as well as the devastating ophthalmic implications that GCA can have. A high index of suspicion must be maintained; particularly in elderly patients with atypical presentations.

scholarly journals Młodość wobec starości: szacunek czy deprecjacja? „Namir!” Lubka Deresza

2017 ◽  
Vol 163 ◽  
pp. 401-414
Author(s):  
Albert Nowacki
Keyword(s):  
Old Age ◽  
Mass Culture ◽  
The Elderly ◽  
The Novel ◽  
Research Task ◽  
The Face

Youth to old age: respect or depreciation? Namir! by Lubko DereshThis article deals the problem of old age in the novel Namir! by Ukrainian writer Lubko Deresh. To accomplish this research task, at the beginning of the presentation problem of how the elderly was presented in culture and literature over the centuries was analyzed, and then was analyzed the novel itself. Studies have shown that in his book the author raised the question of a confrontation of youth with an old age. Our analyzes of Namir! by Deresh turned out that it repeats the patterns of mass culture, showing atendency to devaluation the elderly. During the study revealed, however, achange in approach to the problems of old age, which is visible attitude of respect for the elderly linked to equality in the face of inevitable death.Молодість перед старістю: пошана чи зневага? Намір! Любка ДерешаМетою цієї статті є спроба показати проблему старості в романі українського пись­менника Любка Дереша Намір! Щоб успішно висвітлити так окреслене завдання, на по­чатку було звернено особливу вагу на те, як питання старості представлялося культурою та літературою протягом століть, і тільки тоді було звернено увагу на саму повість. Дослі­дження показали, що в своїй книзі автор використав питання конфронтації молодого віку із старістю. Під час аналізу нами було встановлено, що Намір! повторює схеми масової куль­тури та показує виразну схильність автора до девальвації літніх людей. Наше дослідження показало, однак, певну зміну в підході до проблеми старості, а саме, що зміна зневаги на ставлення з повагою до літніх людей пов’язана із рівністю всіх людей перед обличчям не­минучої смерті.

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