Pericardial Involvement in Severe COVID-19 Patients.

Background and Objectives: SARS-CoV-2 has an extensive tissue tropism due to its ability to attach to the surfaces of cells through different receptors, leading to systemic complications. In this article, we aim to present the prevalence of pericardial effusions in patients with severe COVID-19, to identify the risk factors/predictors for pericardial involvement, and to evaluate its impact on overall mortality. Materials and Methods: We enrolled 100 patients with severe COVID-19 in our observational cohort study and divided them in two groups: Group A (27 patients with pericardial effusion) and Group B (73 patients without pericardial effusion). We recorded demographic and lifestyle parameters, anthropometric parameters, clinical parameters, inflammation markers, respiratory function parameters, complete blood count, coagulation parameters, and biochemical serum parameters. All patients were evaluated by computer tomography scans within 48 h of admission. Results: The median age was 61 years in both groups and the male/female ratio was 3.5 vs. 2.8 in Group A vs. Group B. We identified mild pericardial effusion (3-4 mm) in 62.9% patients and moderate pericardial effusion (5-9 mm) in 37.1% patients, with a median value of 4 [3;6] mm. The patients with pericardial effusion presented with higher percentages of obesity, type-2 diabetes mellitus, arterial hypertension, and congestive heart failure, without statistical significance. Increased values in cardiac enzymes (myoglobin, CK, CK-MB) and LDH were statistically associated with pericardial effusion. The overall mortality among the participants of the study was 24% (24 patients), 33.3% in Group A and 20.8% in Group B. Conclusions: Pericardial effusion has a high prevalence (27%) among patients with severe forms of COVID-19 and was associated with higher mortality. Pericardial effusion in our study was not associated with the presence of comorbidities or the extent of lung involvement. Overall mortality was 60% higher in patients with pericardial effusion.

Mortality Predictors in Severe SARS-CoV-2 Infection.

Background and Objectives: The severe forms of SARS-CoV-2 pneumonia are associated with acute hypoxic respiratory failure and high mortality rates, raising significant challenges for the medical community. The objective of this paper is to present the importance of early quantitative evaluation of radiological changes in SARS-CoV-2 pneumonia, including an alternative way to evaluate lung involvement using normal density clusters. Based on these elements we have developed a more accurate new predictive score which includes quantitative radiological parameters. The current evolution models used in the evaluation of severe cases of COVID-19 only include qualitative or semi-quantitative evaluations of pulmonary lesions which lead to a less accurate prognosis and assessment of pulmonary involvement. Materials and Methods: We performed a retrospective observational cohort study that included 100 adult patients admitted with confirmed severe COVID-19. The patients were divided into two groups: group A (76 survivors) and group B (24 non-survivors). All patients were evaluated by CT scan upon admission in to the hospital. Results: We found a low percentage of normal lung densities, PaO2/FiO2 ratio, lymphocytes, platelets, hemoglobin and serum albumin associated with higher mortality; a high percentage of interstitial lesions, oxygen flow, FiO2, Neutrophils/lymphocytes ratio, lactate dehydrogenase, creatine kinase MB, myoglobin, and serum creatinine were also associated with higher mortality. The most accurate regression model included the predictors of age, lymphocytes, PaO2/FiO2 ratio, percent of lung involvement, lactate dehydrogenase, serum albumin, D-dimers, oxygen flow, and myoglobin. Based on these parameters we developed a new score (COV-Score). Conclusions: Quantitative assessment of lung lesions improves the prediction algorithms compared to the semi-quantitative parameters. The cluster evaluation algorithm increases the non-survivor and overall prediction accuracy.COV-Score represents a viable alternative to current prediction scores, demonstrating improved sensitivity and specificity in predicting mortality at the time of admission.

The Impact of Tocilizumab on Radiological Changes Assessed by Quantitative Chest CT in Severe COVID-19 Patients.

(1) Background: We aimed to analyze the characteristics associated with the in-hospital mortality, describe the early CT changes expressed quantitatively after tocilizumab (TOC), and assess TOC timing according to the oxygen demands. (2) Methods: We retrospectively studied 101 adult patients with severe COVID-19, who received TOC and dexamethasone. The lung involvement was assessed quantitatively using native CT examination before and 7−10 days after TOC administration. (3) Results: The in-hospital mortality was 17.8%. Logistic regression analysis found that interstitial lesions above 50% were associated with death (p = 0.01). The other variables assessed were age (p = 0.1), the presence of comorbidities (p = 0.9), the oxygen flow rate at TOC administration (p = 0.2), FiO2 (p = 0.4), lymphocyte count (p = 0.3), and D-dimers level (p = 0.2). Survivors had a statistically significant improvement at 7−10 days after TOC of interstitial (39.5 vs. 31.6%, p < 0.001), mixt (4.3 vs. 2.3%, p = 0.001) and consolidating (1.7 vs. 1.1%, p = 0.001) lesions. When TOC was administered at a FiO2 ≤ 57.5% (oxygen flow rate ≤ 13 L/min), the associated mortality was significantly lower (4.3% vs. 29.1%, p < 0.05). (4) Conclusions: Quantitative imaging provides valuable information regarding the extent of lung damage which can be used to anticipate the in-hospital mortality. The timing of TOC administration is important and FiO2 could be used as a clinical predictor.

Long-Term Longitudinal Evaluation of Six Commercial Immunoassays for the Detection of IgM and IgG Antibodies against SARS CoV-2.

The number of serological assays for SARS-CoV-2 has skyrocketed in the past year. Concerns have been raised regarding their performance characteristics, depending on the disease severity and the time of the analysis post-symptom onset (PSO). Thus, independent validations using an unbiased sample selection are required for meaningful serology data interpretation. We aimed to assess the clinical performance of six commercially available assays, the seroconversion, and the dynamics of the humoral response to SARS-CoV-2 infection. The study included 528 serum samples from 156 patients with follow-up visits up to six months PSO and 161 serum samples from healthy people. The IgG/total antibodies positive percentage increased and remained above 95% after six months when chemiluminescent immunoassay (CLIA) IgG antiS1/S2 and electro-chemiluminescent assay (ECLIA) total antiNP were used. At early time points PSO, chemiluminescent microparticle immunoassay (CMIA) IgM antiS achieved the best sensitivity. IgM and IgG appear simultaneously in most circumstances, and when performed in parallel the sensitivity increases. The severe and the moderate clinical forms were significantly associated with higher seropositivity percentage and antibody levels. High specificity was found in all evaluated assays, but the sensitivity was variable depending on the time PSO, severity of disease, detection method and targeted antigen.

Healthcare-associated Clostridioides difficile infection during the COVID-19 pandemic in a tertiary care hospital in Romania.

Introduction. Information on healthcare-associated C.difficile infection (HA-CDI) in COVID-19 patients is limited. We aimed to assess the characteristics of HA-CDI acquired during and before the COVID-19 pandemic. Methods. We conducted a retrospective study in a tertiary care hospital, in which since March 2020 exclusively COVID-19 patients are hospitalized. We compared HA-CDI adult patients hospitalized in March 2020-February 2021 with those hospitalized during the same period in 2017-2018. Results. We found 51 cases during 2020-2021 (COVID-19 group), incidence 5.6/1000 adult discharge and 99 cases during 2017-2018 (pre-COVID-19 group), incidence 6.1/1000 adult discharge (p=0.6). The patients in COVID-19 group compared to pre-COVID-19 group were older (median age 66 vs 62 years), with similar rate of comorbidities, but with higher rate of cardiovascular diseases (62.7% vs 42.4%) and less immunosuppression (21.6% vs 55.6%), they had a higher proton pump inhibitors use (94.1% vs 32.3%), and a longer hospitalization (median 19 vs 14 days). Eighty-five (85.9%) patients in pre-COVID-19 group versus 44 (86.3%) patients in COVID-19 group received antimicrobial treatment - mainly cephalosporins (34,1%), quinolones (22,3%) and glycopeptides (21,1%) in pre-COVID-19 group and mainly cephalosporins and macrolides (63,6% each) in COVID-19 group. We found four HA-CDI-related deaths in pre-COVID-19 group and none in the COVID-19 group. Conclusions. The HA-CDI incidence in COVID-19 group did not change versus the same period of time during 2017-2018. The antibiotic use was the most important factor associated with HA-CDI. We identified a high use of broad-spectrum antibiotics despite the lack of empirical antimicrobial recommendations in COVID-19.

Rapid Clinical Score for the Diagnosis of Tuberculous Meningitis: A Retrospective Cohort Study.

OBJECTIVE: The aim of our study was to retrospectively validate a previously described rapid clinical score (RCS) in distinguishing tuberculous meningitis (TBM) from viral meningitis (VM) in people who are at increased risk of tuberculosis, as well as from cryptococcal meningitis (CM) in HIV-infected patients. METHODS: We performed a retrospective study of patients admitted with a diagnosis of aseptic meningitis between January 2012 and December 2015, to a referral hospital for infectious diseases. The variables included in RCS were duration of symptoms before admission, neurological stage, cerebrospinal fluid (CSF) to blood glucose ratio, and CSF protein. We included in this retrospective study 31 patients with definite or probable TBM including 14 HIV-infected patients, 62 HIV-noninfected patients with VM, and 18 HIV-infected patients with CM. RESULTS: The sensitivity of RCS to distinguish TBM from VM was 96.7%, with a specificity of 81.1% and the area under the receiver operating characteristic (ROC) curve was 0.949 (0.90-0.99). When all four criteria from the RCS were present, the specificity increased at 100%. In HIV-infected patients, the sensitivity and specificity of RCS in differentiating TBM from CM were 86.6% and 27.7%, respectively, and the area under the ROC curve was 0.669 (0.48-0.85). CONCLUSION: This easy-to-use RCS was found to be helpful in differentiating TBM from VM, with a better sensitivity than molecular amplification techniques and a relatively good specificity. However, the RCS was not useful to differentiate between TBM and CM in HIV-infected patients.

Immune reconstitution inflammatory syndrome in central nervous system tuberculosis.

BACKGROUND: Immune reconstitution inflammatory syndrome (IRIS) related to tuberculosis (TB) is an exacerbation of an inflammatory response that most often occurs in HIV-infected patients but it has also been observed in non-HIV immunocompromised hosts. We describe two cases of TB associated IRIS with CNS involvement, one in a patient diagnosed with HIV infection and the other in a patient with immunosuppression due to anti tumor necrosis factor treatment. CASE REPORT; The first case was a 40-year-old man, newly diagnosed with HIV infection, who developed right hemiplegia and expressive aphasia. Lumbar puncture and MRI sustained the diagnosis of TB meningoencephalitis. He initially improved understandard antituberculous therapy (ATT). After 6 weeks of ATT antiretroviral treatment (ART) was initiated and one week later the patient experienced worsening of his symptoms (left hemiparesis and mixed aphasia), of CSF and MRI changes. He improved after he was starting on corticosteroids in tapering doses, with clinical deterioration at lower doses over a 5-month period. The second case was a 56-year-old male, treated for 3 years with Infliximab for ankylosing spondylitis. He was diagnosed with disseminated TB (CNS tuberculomas and pulmonary TB), histological and bacteriological confirmed the diagnosis. His neurological symptoms improved after starting ATT but after 2 weeks of therapy he presented with diplopia and generalized tonic-clonic seizures. These symptoms improved only after corticosteroids were added (tapering doses during the next 6 months). CONCLUSION: TB-associated IRIS with CNS involvement is potentially life threatening. Corticosteroids should be used to control the IRIS symptoms in those patients. The dosing and duration should be tailored to each patient.

Co-infections and co-morbidities among injecting drug users versus sexually infected patients in Bucharest.

INTRODUCTION: After the 2008 introduction of new psychoactive substances (NPS) in Romania, the number of newly diagnosed HIV infections showed significant increase among injecting drug users (IDUs). Our objective was to analyze the differences between co-infections related to the HIV infection, based on the way of transmission (IDUs versus sexually infected). MATERIALS AND METHODS: A retrospective transversal study was carried out, analyzing 245 adult HIV-positive patients, diagnosed between January 2013 and December 2013 in our hospital. We collected socio-demographic, epidemiological and laboratory data at the diagnosis and analyzed them using SPSS version 20. RESULTS: Most patients (71%, 174/245) were men and the median age was 32 years (IQR: 26-38). 91 patients (37%) were former/active IDUs (most of them injecting both opioids and NPS), while 154 patients (63%) were sexually infected, with 84% being heterosexuals and 16% men having sex with men (MSM). The median CD4 count, at the moment of diagnosis, was 294 cells/mm(3) (IQR: 119-483). CONCLUSION: Heterosexual transmission was the most common way of HIV transmission in 2013 in contrast with EU/CEE, where MSM accounted for the majority of cases of HIV epidemics in 2012 [1]. Sexually transmitted HIV infection was associated with late presentation, stage C and syphilis. We noted a high percentage of IDU transmission, which was associated with stage A and hepatitis C infection.

Characteristics of late presenters in Bucharest.

INTRODUCTION: Late presentation is associated with increased healthcare costs, rates of HIV transmission and poor outcome. In Romania, in 2012, one third of individuals with new HIV diagnosis were late presenters (LP). OBJECTIVE: The aim of the study was to evaluate the epidemiological and clinical characteristics associated with late presentation. METHODS: We retrospectively studied patients over 18 years old, notified in our institution between January 2012 and December 2013, including 499 out of 727 newly diagnosed patients in Bucharest. LP were defined as patients presenting with CD4 T-cell count below 350 cells/mm(3) or with an AIDS defining event. Patients with advanced HIV disease (AHD) were defined as persons with a CD4 T-cell count below 200 cells/mm(3). Differences between groups were analyzed using the Mann-Whitney U test for continuous variables and the chi-square test for dichotomous variables. Multivariable analysis was performed using binary logistic regression. RESULTS: Out of 499 patients included, 362 (72%) were male. The median age was 30 (IQR 26-36). A total of 302 (61%) were LP and 184 (37%) were patients with AHD. A total of 170 (34%) were asymptomatic and 114 (23%) presented with an AIDS-defining event. The median CD4 count was 293 cells/mm(3) (IQR 125-471) and the median HIV viral load was 100,191 copies/mL (IQR 34,560-272,936). Characteristics of LP compared with non-LP are shown in Table 1. Stage C disease has been shown by multivariable analysis to be associated with LP (p<0.001, OR=11.56, 95% CI 4.94-27.03). CONCLUSIONS: More than half of newly HIV diagnosed patients in Bucharest were LP. The proportion of LP was highest among heterosexually acquired cases. Although most our patients were young, late presentation was associated with age over 35 years. The lower proportion of LP among IVDU compared with those heterosexually infected could be explained by a higher proportion of HIV screening tests among IVDU.