scholarly journals Positive RT-PCR Test Results in Discharged COVID-19 Patients: Reinfection or Residual?

2020 ◽  
Author(s):  
jiejie tao ◽  
Zhishan Hu ◽  
Jinjin Liu ◽  
Peipei Pang ◽  
Gangze Fu ◽  
...  
Keyword(s):  
Lower Respiratory Tract ◽  
Clinical Course ◽  
Test Results ◽  
Rt Pcr ◽  
Case Presentation ◽  
Radiological Features ◽  
Discharge Management ◽  
Laboratory Test Results ◽  
Discharged Patients ◽  
Pcr Test

Abstract Background: The coronavirus disease-19 (COVID-19) is a highly infectious disease. Moreover, 14% of the discharged patients tested virus positive again. However, the underlying clinical mechanisms are still under investigation. Case presentation: The current study summarized the clinical course, radiological features and laboratory test results of two COVID-19 patients who tested positive again during the quarantine after hospital discharge. We found that while all symptoms were relieved, their lesions in lungs were not fully recovered, and both of them had slight coughs. In addition, when the lesions were further recovered and the cough symptoms were further remitted, they tested virus negative again. Conclusions: These results implied that the positive result is unlikely caused by the reinfection from others or the remained virus. Rather, it may derive from the remained virus transferred from the lower respiratory tract to the throat or nose with coughs. Accordingly, we proposed some suggestions regarding the discharge management. This study enhances our knowledge of the progress of COVID-19 and benefit the control of this disease.

scholarly journals Changes in RT-PCR test results and symptoms during the menstrual cycle of a female individual infected with SARS-CoV-2: a case report

2020 ◽  
Author(s):  
Hua Zheng ◽  
Juan Tan ◽  
Ke Ma ◽  
Weihua Meng
Keyword(s):  
Menstrual Cycle ◽  
Hospital Discharge ◽  
Disease Susceptibility ◽  
Menstrual Period ◽  
Test Results ◽  
Rt Pcr ◽  
Case Presentation ◽  
Management Protocol ◽  
History Of ◽  
Pcr Test

Abstract Background: The implications of the menstrual cycle for disease susceptibility, development, and severity of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection are largely unknown.Case presentation: We report a 37-year-old woman infected with SARS-CoV-2 who showed a 16-day incubation period. She developed a fever on the first day of her menstrual period, and again on the first day of her next menstrual period after hospital discharge. RT-PCR test results were positive during the first menstrual period before admission, turned negative during hospitalization, and then positive again during the second menstrual period after hospital discharge.Conclusions: This case indicates sex hormones may play an important role in SARS-CoV-2 infection. For women with history of exposure to SARS-CoV-2, the management protocol should include assessment of the menstrual status.

scholarly journals COVID-19 and pregnancy – where are we now? A review

2020 ◽  
Vol 48 (5) ◽  
pp. 428-434 ◽  
Author(s):  
Aleksandra Rajewska ◽  
Wioletta Mikołajek-Bedner ◽  
Joanna Lebdowicz-Knul ◽  
Małgorzata Sokołowska ◽  
Sebastian Kwiatkowski ◽  
...  
Keyword(s):  
Case Fatality ◽  
Fetal Distress ◽  
Delivery Mode ◽  
Test Results ◽  
Rt Pcr ◽  
Third Trimester ◽  
The Third ◽  
Laboratory Test Results ◽  
Protective Antibodies ◽  
Polymerase Chain

AbstractThe new acute respiratory disease severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is highly contagious. It has caused many deaths, despite a relatively low general case fatality rate (CFR). The most common early manifestations of infection are fever, cough, fatigue and myalgia. The diagnosis is based on the exposure history, clinical manifestation, laboratory test results, chest computed tomography (CT) findings and a positive reverse transcription-polymerase chain reaction (RT-PCR) result for coronavirus disease 2019 (COVID-19). The effect of SARS-CoV-2 on pregnancy is not already clear. There is no evidence that pregnant women are more susceptible than the general population. In the third trimester, COVID-19 can cause premature rupture of membranes, premature labour and fetal distress. There are no data on complications of SARS-CoV-2 infection before the third trimester. COVID-19 infection is an indication for delivery if necessary to improve maternal oxygenation. Decision on delivery mode should be individualised. Vertical transmission of coronavirus from the pregnant woman to the fetus has not been proven. As the virus is absent in breast milk, the experts encourage breastfeeding for neonatal acquisition of protective antibodies.

scholarly journals Atypical anti-glomerular basement membrane disease with anti-GBM antibody negativity and ANCA positivity: a case report

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Na Guo ◽  
Qinghua Yin ◽  
Song Lei ◽  
Yanjun He ◽  
Ping Fu
Keyword(s):  
Basement Membrane ◽  
Glomerular Basement Membrane ◽  
Rare Case ◽  
Test Results ◽  
Serum Samples ◽  
Tissue Samples ◽  
Case Presentation ◽  
Severe Renal Insufficiency ◽  
Laboratory Test Results ◽  
Organ Specific

Abstract Background Anti-glomerular basement membrane (anti-GBM) disease is an organ-specific autoimmune disease that involves the lung and kidneys and leads to rapid glomerulonephritis progression, with or without diffuse alveolar hemorrhage, and even respiratory failure. Classic cases of anti-GBM disease are diagnosed based on the presence of the anti-GBM antibody in serum samples and kidney or lung biopsy tissue samples. However, atypical cases of anti-GBM disease are also seen in clinical practice. Case presentation We herein report the rare case of a patient with atypical anti-GBM disease whose serum was negative for the anti-GBM antibody but positive for the myeloperoxidase (MPO) anti-neutrophil cytoplasmic antibody (p-ANCA) and another atypical ANCA. Laboratory test results showed severe renal insufficiency with a creatinine level of 385 μmol/L. Renal biopsy specimen analysis revealed 100% glomeruli with crescents; immunofluorescence showed immunoglobulin G (IgG) linearly deposited alongside the GBM. Finally, the patient was discharged successfully after treatment with plasmapheresis, methylprednisolone and prednisone. Conclusion This patient, whose serum was negative for the anti-GBM antibody but positive for p-ANCA and another atypical ANCA, had a rare case of anti-GBM disease. Insights from this unusual case might help physicians diagnose rare forms of glomerulonephritis and treat affected patients in a timely manner.

Death and COVID-19 Anxiety in Home-Quarantined Individuals Aged 65 and Over During the Pandemic

2021 ◽  
pp. 003022282110598
Author(s):  
Hümeyra Aslaner ◽  
Betül Özen ◽  
Zeliha K. Erten ◽  
Mebrure Beyza Gökçek
Keyword(s):  
Polymerase Chain Reaction ◽  
Death Anxiety ◽  
Short Form ◽  
Anxiety Score ◽  
Test Results ◽  
Rt Pcr ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Test Result ◽  
Pcr Test

Urgent measures were taken for those at the age of 65 and over who were at the risk group all over the world due to the COVID-19 pandemic. It is known that many individuals at the age of 65 and over have experienced anxiety due to the uncertainties. This study aimed to determine the anxiety and death anxiety in individuals aged 65 and over who were isolation at home due to being diagnosed with COVID-19 or being in contact during the pandemic process. The study is descriptive and cross-sectional. It was performed with 656 home-quarantined individuals aged between 65–80 years with positive or negative real-time polymerase chain reaction (RT-PCR) test result. A form including questions about the death anxiety and the Coronavirus Anxiety Scale Short Form prepared by the researchers were administered to the individuals by phone call. Of the participants, 49.5% were male. Median COVID-19 anxiety score was 4 (0–18). Anxiety scores of the male and female participants were similar. Participants with negative polymerase chain reaction (PCR) results and those with death anxiety had higher COVID anxiety scores. Death anxiety has increased by 1.661 times in male gender, 1.983 times in RT-PCR positivity and 0.146 times in the presence of symptoms. Individuals with positive COVID-19 test results or those aged 65 and over who had death anxiety and negative COVID-19 test result but who were in home-isolation due to being a contact had higher anxiety score. For this reason, those with death anxiety can be supported in line with their religious beliefs to reduce anxiety. Those with negative PCR test results in quarantine can be adequately informed about the COVID-19.

Accuracy of Computed Tomography for Detection of COVID-19 among Suspected Patients

2021 ◽  
Vol 15 (9) ◽  
pp. 2474-2476
Author(s):  
Maham Munir Awan ◽  
Afshan Noreen ◽  
Farah Kalsoom ◽  
Muhammad Tahir ◽  
Umaima Majeed ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Predictive Value ◽  
Gold Standard ◽  
Radiology Department ◽  
True Positive ◽  
Test Results ◽  
Rt Pcr ◽  
Radiological Society ◽  
Medical University ◽  
Pcr Test

Objective: To determine the accuracy of CT chest in diagnosis of COVID-19 taking RT-PCR-testing as gold standard. Materials and Methods: A total of 150 patients of suspicion of COVID-19 who were referred for CT Chest in Radiology Department of Nishtar Medical University Multan from June-2020 to May-2021 were included. In all patients, two RT-PCR test results were obtained with 7 days of admission in hospital. Presence of any of these positive was labelled as COVID-19 infection. CT chest was performed in all patients within 2 days of admission in hospital using 128 slices CT scan machine. The diagnosis of COVID-19 infection was made according to the recommendations by Radiological Society of North America (RSNA) protocol. Results: Mean age was 51.3±14.7 years. 78 (52%) patients were male and 72 (48%) patients were female. RTPCR test was positive in 89 (59.3%) patients. While the CT chest findings were suggestive of COVID-19 infection in 130 (86.7%) patients. The sensitivity of CT chest was 95.5%, specificity 26.2%, PPV wad 65.4% and NPV was 80.0%. Conclusion: CT chest has a very good sensitivity for detection of COVID-19, it can be used as a rapid diagnostic tool especially in areas of pandemic. However, the specificity of CT chest is low, that can limit its use in low COVID-19 affected areas. Keywords: COVID-19, Computed tomography, False Positive, True Positive, Positive Predictive Value, Negative Predictive Value.

DIAGNOSTIC ROLE OF CHEST CT USING CO-RADS CATEGORIZATION IN SARS-COV-2 INFECTION WITH EMPHASIS ON IMPACT OF CT IN PATIENTS WITH DELAYED OR NEGATIVE INITIAL RTPCR TEST

2021 ◽  
pp. 51-52
Author(s):  
Tharani Putta ◽  
Kaushik Deconda
Keyword(s):  
Diagnostic Performance ◽  
Virus Disease ◽  
Vital Role ◽  
Chest Ct ◽  
Lung Involvement ◽  
Test Results ◽  
Rt Pcr ◽  
Diagnostic Role ◽  
Pcr Test

BACKGROUND AND OBJECTIVE: Role of chest CT in diagnosis of corona virus disease 2019 (COVID-19) has been controversial. The purpose of this study is to evaluate the diagnostic performance of chest CT when utilizing COVID-19 Reporting and Data System (CO-RADS). METHODOLOGY: Retrospective study including consecutive patients with positive SARS-CoV-2 RT-PCR test (initial or repeat test) and chest CT done in our institute between June and September 2020. Spectrum of CT ndings, CO-RADS score and 25 point CT severity score (CTSS) were recorded. RESULTS: A total of 300 consecutive patients with SARS-CoV-2 infection were included in the analysis. Out of the 168 patients who underwent CT prior to positive RT-PCR result, 125 (74.4%) had CO-RADS 3, 4 or 5 score on chest CT. 32 study patients (10.6%) had initial negative RT-PCR of which 24 (75%) had CO-RADS 4 or 5 score. Of the total patients with CO-RADS 3 to 5 score (227), 20 (8.8%) had severe lung involvement (CTSS 18-25), 83 (36.6%) had moderate lung involvement (CTSS 8-17) and 124 (54.6%) had mild lung involvement (CTSS 1-7). The mean CTSS was 7.9 with mean lobar score being higher in lower lobes (RLL=1.82, LLL=1.78) compared to the upper and middle lobes (RUL=1.61, RML=1.19, LUL=1.53). CONCLUSION:CT using CO-RADS scoring system has good diagnostic performance. In addition to assessing disease severity, it plays a vital role in triage of patients with suspected COVID-19 especially when there is limited availability of SARS-CoV-2 RT-PCR tests, delay in RT-PCR test results or in negative RT-PCR cases when there is high index of clinical suspicion.

scholarly journals A Rare Cause of Acute Abdomen: An Isolated Falciform Ligament Necrosis

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Ziya Taner Ozkececı ◽  
Mustafa Ozsoy ◽  
Bahadır Celep ◽  
Ahmet Bal ◽  
Coskun Polat
Keyword(s):  
Acute Abdomen ◽  
Leukocyte Count ◽  
Exploratory Laparotomy ◽  
Falciform Ligament ◽  
Test Results ◽  
Imaging Studies ◽  
Anatomical Structures ◽  
Case Presentation ◽  
Air Density ◽  
Laboratory Test Results

The falciform ligament is one of the anatomical structures which attach the liver to the diaphragm and anterior abdominal wall. Primary falciform ligament is very rare. In this article, we present a case of an isolated falciform ligament necrosis, a rare primary pathology of the falciform ligament, who was admitted with acute abdomen. Case presentation: A 64-year-old female patient was admitted with the complaints of pain. Laboratory test results showed a leukocyte count of 17,000/mm3. Imaging studies demonstrated intra-abdominal reactionary fluid along with a heterogeneous mass localized in the falciform ligament. Exploratory laparotomy revealed a necrotic mass of the falciform ligament. No other pathology responsible for falciform ligament necrosis was found. We believe that falciform ligament necrosis should be considered a preliminary diagnosis, if any ligament abnormality, tumor, intraligament air density, or the presence of reactionary fluid surrounding the ligament is detected through abdominal imaging studies.

scholarly journals Diagnostic value of chest CT in outpatient for COVID-19 compare with RT-PCR

2020 ◽  
Author(s):  
Weiwei Zhang ◽  
Meifen Zhu ◽  
Min Zhang
Keyword(s):  
Laboratory Test ◽  
Ground Glass Opacity ◽  
Diagnostic Value ◽  
Chest Ct ◽  
Test Results ◽  
Imaging Data ◽  
Rt Pcr ◽  
Spider Web ◽  
Lesion Location ◽  
Laboratory Test Results

Abstract ObjectivesThe pneumonia caused by the 2019 novel coronavirus recently break out in Wuhan, China, and was named as COVID-19. With the spread of the disease, it bring numbers of casualties,so now we need a way could fast and accuracy diagnose the disease.This paper aims to compare two way for diagnose COVID-19 in outpatient :Chest CT and RT-PCR.Materials and methodsThe study picked 248 patients who treated in fever clinical of GanZhou people's hospital,their complete clinical and imaging data were analysed retrospectively.Epidemiological data,symoptoms,laboratory test results include RT-PCR and the CT results include CT features,lesion location,lesion distribution of suspected COVID-19 infected patients were gathered.ResultsAll of 248 patients,at last 20 patients confirmed COVID-19,15 patients were confirmed in outpatient.More than 200 cases has laboratory test results disnormal.Only 15/248 patients had initial positive RT-PCR for COVID-19,5 patients had COVID-19 confirmed by two or more RT-PCR.50 cases(20.2%) had Ground glass opacity,42 cases(16.9%) had Consolidation,39 cases(15.7%) had Spider web pattern,38 cases(15.3%) had Interlobular septal thickening.For lesion location,22 cases(8.9%) involved Single lobe of one lung,13 cases(5.2%) involved Multiple lobes of one lung,174 cases(70.2%) involved Multiple lobes of both lungs,9 cases(3.6%) involved Bilateral lower lungs,25 cases(10.1%) involved Bilateral middle and lower lungs.Regarding the distribution of the lesions in the lung lobes,119 cases(47.98%) involved Subpleural distribution,19 cases(7.7%) involved Diffuse distribution,7 cases(2.8%) involved Peribronchial distribution,81 cases(32.7%) involved Mixed distribution.ConclusionChest CT can be applied in outpatient to make early diagnosis with sensitivity and accuracy better than that of nucleic acid detection.Trial registrationChiCTR2000032574. Registered 3 May 2020. retrospectively registered

scholarly journals Evaluation Of Clinical, Laboratory And Radiological Findings In Pediatric Covid-19 Cases And Their Relation With RT-PCR Result

2021 ◽  
Author(s):  
Muhammet Asena ◽  
ilyas yolbaş ◽  
murat Kanğın
Keyword(s):  
Computed Tomography ◽  
Respiratory Distress ◽  
Clinical Laboratory ◽  
Age Groups ◽  
Age Group ◽  
Test Results ◽  
Rt Pcr ◽  
Radiological Findings ◽  
Laboratory Findings ◽  
Pcr Test

Background: The pandemic of the new coronavirus disease (COVID-19) continues to be a major health problem globally. In this study, clinical findings, radiological findings, laboratory findings and polymerase chain reaction (PCR) test results were evaluated according to age groups in pediatric patients with COVID-19. Methods: In this study, PCR (+) and PCR (-) 278 cases diagnosed with COVID-19 between March 15, 2020 and September 30, 2020 were assessed considering clinical symptoms, radiological and laboratory findings and RT-PCR test results. Results: 43.9% of the cases consisted of RT-PCR (+) and 56.1% of RT-PCR (-) cases. Fever was observed at the rate of 64.7%, cough 53.2%, respiratory distress 12.2%, myalgia 24.5%, diarrhea 12.9%, chest X-ray findings 48.2% and computed tomography findings 43.6%. Diarrhea and cough, alanine aminotransferase, aspartate aminotransferase, leukocyte and lymphocyte elevation were determined as significantly higher in younger age group cases, while high myalgia and neutrophilia was observed in older age group children (p <0.05). Fever, high CRP, leukocytosis frequency, high neutrophil, were significantly higher in PCR(-) cases and the frequency of respiratory distress, high lymphocyte and chest computed tomography findings in PCR(+) cases (p <0.05). Conclusion: COVID-19 infection may indicate different nonspecific clinical, laboratory and radiological findings in children according to both adults and pediatric age groups. In addition, the results of the PCR test may give erroneous results in cases due to conditions such as fever, respiratory distress, high CRP, leukocytosis, high neutrophil and CT finding. Keywords: pediatric, COVID-19, RT-PCR

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