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1.
Epidemiol Infect ; 152: e69, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38557427

RESUMO

Hand hygiene (HH) is the paramount measure used to prevent healthcare-associated infections. A repeated cross-sectional study was undertaken with direct observation of the degree of compliance on HH of healthcare personnel during the SARS-CoV-2 pandemic. Between, 2018-2019, 9,083 HH opportunities were considered, and 5,821 in 2020-2022. Chi squared tests were used to identify associations. The crude and adjusted odds ratios were used along with a logistic regression model for statistical analyses. Compliance on HH increased significantly (p < 0.001) from 54.5% (95% CI: 53.5, 55.5) to 70.1% (95% CI: 68.9, 71.2) during the COVID-19 pandemic. This increase was observed in four of the five key moments of HH established by the World Health Organization (WHO) (p < 0.05), except at moment 4. The factors that were significantly and independently associated with compliance were the time period considered, type of healthcare-personnel, attendance at training sessions, knowledge of HH and WHO guidelines, and availability of hand disinfectant alcoholic solution in pocket format. Highest HH compliance occurred during the COVID-19 pandemic, reflecting a positive change in healthcare-personnel's behaviour regarding HH recommendations.


Assuntos
COVID-19 , Fidelidade a Diretrizes , Higiene das Mãos , Pessoal de Saúde , Humanos , COVID-19/prevenção & controle , COVID-19/epidemiologia , Estudos Transversais , Fidelidade a Diretrizes/estatística & dados numéricos , Higiene das Mãos/estatística & dados numéricos , Pessoal de Saúde/estatística & dados numéricos , SARS-CoV-2 , Desinfecção das Mãos
2.
J Med Virol ; 95(1): e28284, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36333837

RESUMO

Studies investigating the cumulative incidence of and immune status against SARS-CoV-2 infection provide valuable information for shaping public health decision-making. A cross-sectional study on 935 participants, conducted in the Valencian Community (VC), measuring anti-SARS-CoV-2-receptor binding domain-RBD-total antibodies and anti-Nucleocapsid (N)-IgGs via electrochemiluminescence assays. Quantitation of neutralizing antibodies (NtAb) against ancestral and Omicron BA.1 and BA.2 variants and enumeration of SARS-CoV-2-S specific-IFNγ-producing CD4+ and CD8+ T cells was performed in 100 and 137 participants, respectively. The weighted cumulative incidence was 51.9% (95% confidence interval [CI]: 48.7-55.1) and was inversely related to age. Anti-RBD total antibodies were detected in 97% of participants; vaccinated and SARS-CoV-2-experienced (VAC-ex; n = 442) presented higher levels (p < 0.001) than vaccinated/naïve (VAC-n; n = 472) and nonvaccinated/experienced (UNVAC-ex; n = 63) subjects. Antibody levels correlated inversely with time elapsed since last vaccine dose in VAC-n (Rho, -0.52; p < 0.001) but not in VAC-ex (rho -0.02; p = 0.57). Heterologous booster shots resulted in increased anti-RBD antibody levels compared with homologous schedules in VAC-n, but not in VAC-ex. NtAbs against Omicron BA.1 were detected in 94%, 75%, and 50% of VAC-ex, VAC-n and UNVAC-ex groups, respectively. For Omicron BA.2, the figures were 97%, 84%, and 40%, respectively. SARS-CoV-2-S-reactive IFN-γ T cells were detected in 73%, 75%, and 64% of VAC-ex, VAC-n and UNVAC-ex, respectively. Median frequencies for both T-cell subsets were comparable across groups. In summary, by April 2022, around half of the VC population had been infected with SARS-CoV-2 and, due to extensive vaccination, displayed hybrid immunity.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , SARS-CoV-2/genética , Espanha/epidemiologia , Linfócitos T CD8-Positivos , Estudos Transversais , Incidência , Anticorpos Neutralizantes , Anticorpos Antivirais
3.
Clin Infect Dis ; 75(1): e865-e868, 2022 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-35314856

RESUMO

A third Comirnaty vaccine dose increased severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain antibody levels (median, 93-fold) and neutralizing antibody titers against Wuhan-Hu-1 (median, 57-fold), Beta (me 22-fold), Delta, (median, 43-fold), and Omicron (median, 8-fold) variants, but had less impact on S-reactive T-cell immunity in nursing home residents.


Assuntos
COVID-19 , Vacinas Virais , Imunidade Adaptativa , Anticorpos Neutralizantes , Anticorpos Antivirais , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Humanos , Testes de Neutralização , Casas de Saúde , SARS-CoV-2
4.
J Med Virol ; 94(8): 3776-3782, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35445415

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant breakthrough infections in nursing home residents following vaccination with Comirnaty® COVID-19 vaccine were characterized. In total, 201 participants (median age, 87 years; range, 64-100; 133 female) from two nursing homes in the Valencian community (Spain) were included. SARS-CoV-2-Spike (S) antibody responses were determined by a lateral flow immunocromatography (LFIC) assay and by quantitative electrochemiluminescent assay in LFIC-negative participants. SARS-CoV-2-S-IFNγ T cells were enumerated by flow cytometry in 10 participants. Nasopharyngeal SARS-CoV-2 RNA loads were quantified by real-time polymerase chain reaction assays. Vaccine breakthrough COVID-19 due to the Delta variant occurred in 39 residents (median age, 87 years; range, 69-96; 31 female) at a median of 6.5 months after vaccination (nine requiring hospitalization). Breakthrough infections occurred at a higher rate (p < 0.0001) in residents who had not been previously infected with SARS-CoV-2 (naïve) (33/108; 18%) than in those with prior diagnosis of SARS-CoV-2 infection (experienced) (6/93; 6.4%), and were more likely (p < 0.0001) to develop in residents who tested negative by LFIC (20/49) at 3 months after vaccination as compared to their LFIC-positive counterparts (19/142). Among LFIC-negative residents, a trend towards lower plasma anti-RBD antibody levels was noticed in those developing breakthrough infection (p = 0.16). SARS-CoV-2 RNA loads in nasopharyngeal specimens were lower in SARS-CoV-2-experienced residents (p < 0.001) and in those testing positive by LFIC (p = 0.13). The frequency of SARS-CoV-2-S-reactive T cells at 3 months was similar in LFIC-negative residents with (n = 7) or without (n = 3) breakthrough infection. Prior history of SARS-CoV-2 infection and detection of S-reactive antibodies by LFIC at 3 months is associated with a lower risk of Delta-variant breakthrough infection in nursing home residents at midterm after Comirnaty® COVID-19 vaccination.


Assuntos
COVID-19 , SARS-CoV-2 , Idoso de 80 Anos ou mais , Anticorpos Antivirais , COVID-19/diagnóstico , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Feminino , Humanos , Casas de Saúde , RNA Viral/genética , SARS-CoV-2/genética , Vacinação
5.
J Med Virol ; 94(9): 4216-4223, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35585782

RESUMO

We investigated whether peripheral blood levels of SARS-CoV-2 Spike (S) receptor binding domain antibodies (anti-RBD), neutralizing antibodies (NtAb) targeting Omicron S, and S-reactive-interferon (IFN)-γ-producing CD4+ and CD8+ T cells measured after a homologous booster dose (3D) with the Comirnaty® vaccine was associated with the likelihood of subsequent breakthrough infections due to the Omicron variant. An observational study including 146 nursing home residents (median age, 80 years; range, 66-99; 109 female) evaluated for an immunological response after 3D (at a median of 16 days). Anti-RBD total antibodies were measured by chemiluminescent immunoassay. NtAb were quantified by an Omicron S pseudotyped virus neutralization assay. SARS-CoV-2-S specific-IFNγ-producing CD4+ and CD8+ T cells were enumerated by whole-blood flow cytometry for intracellular cytokine staining. In total, 33/146 participants contracted breakthrough Omicron infection (symptomatic in 30/33) within 4 months after 3D. Anti-RBD antibody levels were comparable in infected and uninfected participants (21 123 vs. 24 723 BAU/ml; p = 0.34). Likewise, NtAb titers (reciprocal IC50 titer, 157 vs. 95; p = 0.32) and frequency of virus-reactive CD4+ (p = 0.82) and CD8+ (p = 0.91) T cells were similar across participants in both groups. anti-RBD antibody levels and NtAb titers estimated at around the time of infection were also comparable (3445 vs. 4345 BAU/ml; p = 0.59 and 188.5 vs. 88.9; p = 0.70, respectively). Having detectable NtAb against Omicron or SARS-CoV-2-S-reactive-IFNγ-producing CD4+ or CD8+ T cells after 3D was not correlated with increased protection from breakthrough infection (OR, 1.50; p = 0.54; OR, 0.0; p = 0.99 and OR 3.70; p = 0.23, respectively). None of the immune parameters evaluated herein, including NtAb titers against the Omicron variant, may reliably predict at the individual level the risk of contracting COVID-19 due to the Omicron variant in nursing home residents.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Idoso de 80 Anos ou mais , Anticorpos Neutralizantes , Anticorpos Antivirais , Linfócitos T CD8-Positivos , COVID-19/prevenção & controle , Feminino , Humanos , Casas de Saúde , SARS-CoV-2 , Proteínas do Envelope Viral
6.
Prev Med ; 163: 107237, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36057393

RESUMO

The objective was to understand the effectiveness of the BNT162b2 and mRNA-1273 vaccines against SARS-CoV-2 in health professionals(HPs) in the Valencian Autonomous Community(Spain) who had completed a full vaccination regimen, both in terms of preventing infections and avoiding hospitalisations, according to the time elapsed since the vaccine administration. Case-controlled study with negative test results. HPs who had undergone at least one PCR or antigen(Ag) active infection diagnostic test(AIDT) to rule out SARS-CoV-2 infection between 25 January and 18 July 2021 were included. HPs with positive AIDT result were considered as cases and those with a negative result controls. Adjusted vaccine effectiveness(VEa) to prevent SARS-CoV-2 infection and its 95% confidence interval(95% CI) were calculated using the formula VEa = (1 - OR) × 100. The VEa for the prevention of SARS-CoV-2 infection 12 to 120 days after completing the full two-dose vaccine regimen was 91.6%(95%CI[89.6%,93.2%]) for the BNT162b2 vaccine and 95.2%(95%CI[88.3%,98.1%]) for the mRNA-1273 vaccine. After 120 days the VEa was 71.5%(95%CI[67.0%,75.5%]) for the BNT162b2 vaccine and 88.3%(95%CI[75.7,94.4%]) for the mRNA-1273 vaccine. The VEa for prevention of hospitalisation for COVID-19 for the complete two-dose regimen of mRNA vaccines (BNT162b2 and mRNA-1273) was 96.8%(95%CI[76.1%,99.6%]). The administration of the complete regimen of the BNT162b2 and mRNA-1273 vaccine against SARS-CoV-2 was highly effective for the prevention of COVID-19 cases in HPs when 12 to 120 days had elapsed since the second dose. However, said effectiveness decreased as time from the vaccine administration elapsed, although it was maintained for the prevention of hospitalisation of HPs.


Assuntos
COVID-19 , Vacinas Virais , Vacina de mRNA-1273 contra 2019-nCoV , Vacina BNT162 , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Hospitalização , Humanos , SARS-CoV-2 , Espanha/epidemiologia , Vacinas Sintéticas , Vacinas de mRNA
7.
Neurologia ; 2022 Feb 14.
Artigo em Espanhol | MEDLINE | ID: mdl-35185237

RESUMO

OBJECTIVE: There is early evidence about Valproic acid (VPA) antiviral effect. Our aim was to investigate the incidence and severity of SARS-CoV-2 infection in VPA users as compared with the general population. MATERIAL AND METHODS: A case-control study nested within a cohort, carried out between March 1 and December 17, 2020. Retrospectively, we identified confirmed SARS-CoV-2 infection patients exposed to VPA in our health department (defined as case). We ascertained VPA regimen (all the time (AT)(292 days) or at least 20% of the study period (notAT)(≥58 days) and if VPA levels were in therapeutic range (ATR) (50-100 mcg/mL) in the last 24 months. We calculated the cumulative incidence of SARS-CoV-2 infection and hospital admission in the cases, comparing it with the general unexposed VPA population (controls). RESULTS: During the study period, 6183 PCR+ were detected among 281035 inhabitants, of these, 746 were hospitalized. 691 patients were on VPA notAT and 628 (90.1%) AT. The indication for VPA use was epilepsy in 54.9%. The incidence of PCR+ was 1.736 % (OR 0.785 (95%CI 0.443-1.390) and 1.910 % (OR 0.865 (95%CI 0.488-1.533), on VPA notAT and VPA AT patients, respectively vs. 2.201% in people without VPA regimen. Those patients with VPA ATR had a lower risk of PCR + (OR 0.233 (95%CI 0.057-0.951) notAT; OR 0.218 (95%CI 0.053-0.890) AT). Hospital admission incidence was lower in patient on VPA (OR was 0.543 (95% CI 0.076 to 3.871). CONCLUSION: Patients with VPA within the therapeutic range had a reduction of SARS-Cov-2 infection incidence greater than 75%. There is a downward trend in the risk of COVID-19 admission by SARS-CoV-2 in patients on VPA therapy. These findings warrant further investigation.

8.
Enferm Infecc Microbiol Clin ; 39(7): 319-325, 2021.
Artigo em Espanhol | MEDLINE | ID: mdl-34629599

RESUMO

OBJECTIVE: Estimate IgG antibody prevalence against SARS-CoV-2 in healthcare personnel (HCP) of a healthcare department (HD). METHOD: Prevalence study. The presence of IgG antibodies against SARS-CoV-2 was determined in HCP of the HD. Enzyme linked immunosorbent assays (ELISA) tests were used. Field work took place from April 24, 2020 to May 8, 2020. The age, sex, occupation (physician, nurse, etc.) and the work area (Primary Care, Emergency Room, etc.) were gathered. The IgG antibody prevalence was then calculated with its 95% confidence interval (95% CI). To study the association between HCP characteristics and the presence IgG the Chi Square test was used, and to study the magnitude of association, the Odds Ratio (95% CI) was calculated. RESULTS: Of the 4813 HCP in the HD, 4179 (87,1%) participated. Of these, 73,3% (3065) were women and 26,7% (1114) men. The global prevalence of IgG antibodies against SARS-CoV-2 was 6,6% (95% CI: 5,8-7,3). There were statistically significant differences depending on the occupation, from 8,7% (95% CI: 6,9-10,6) on medics down to 3,2% (95% CI: 1,0-8,0) on personnel not associated with health care. The other characteristics did not associate significantly to antibody presence against SARS-CoV-2. CONCLUSION: The SARS-CoV-2 infection frequency in HCP is similar to the estimated in the general population for big cities in Spain. This highlights the effectiveness of the infection control and prevention programme in this healthcare department targeted at healthcare personnel.

9.
Medicina (Kaunas) ; 57(9)2021 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-34577877

RESUMO

Background: Alzheimer's disease (AD) is characterized by the presence of ß-amyloid plaques and neurofibrillary tangles, while Lewy body dementia (LBD) is characterized by α-synuclein (α-syn) inclusions. Some authors examine α-syn protein in the neurodegeneration process of AD and propose to consider cerebrospinal fluid (CSF) α-syn as a possible additional biomarker to the so-called "core" of AD. Objective: To determine whether there is a correlation between α-syn levels and "core" AD biomarkers in patients with mild cognitive impairment (MCI). Materials and methods: In total, 81 patients in the early stages of MCI were selected from the outpatient dementia consultation in Alicante General Hospital. Using a cross-sectional case-control design, patients were analyzed in four groups: stable MCI (MCIs; n = 25), MCI due to AD (MCI-AD; n = 32), MCI due to LBD (MCI-LBD; n = 24) and a control group of patients with acute or chronic headache (Ctrl; n = 18). Correlation between CSF protein levels in the different groups was assessed by the Rho Spearman test. Results: We found positive correlations between T-tau protein and α-syn (ρ = 0.418; p value < 0.05) and p-tau181p and α-syn (ρ = 0.571; p value < 0.05) exclusively in the MCI-AD group. Conclusion: The correlation found between α-syn and tau proteins in the first stages of AD support the involvement of α-syn in the pathogenesis of AD. This result may have clinical and diagnostic implications, as well as help to apply the new concept of "precision medicine" in patients with MCI.


Assuntos
Doença de Alzheimer , Doença por Corpos de Lewy , Doença de Alzheimer/diagnóstico , Biomarcadores , Estudos Transversais , Humanos , Doença por Corpos de Lewy/diagnóstico , alfa-Sinucleína
10.
J Autoimmun ; 114: 102523, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32690352

RESUMO

OBJECTIVES: To describe the clinical characteristics and predictors of major outcomes in patients treated with tocilizumab (TCZ) for severe COVID-19 pneumonia. PATIENTS AND METHODS: Case series of all sequential patients with severe COVID-19 pneumonia treated with TCZ at an Academic Spanish hospital (March 12 - May 2, 2020). Clinical outcomes: death, length of hospital stay. An early clinical response to TCZ (48-72 h after the administration) was assessed by variations in respiratory function markers, Brescia COVID Respiratory Severity Scale (BCRSS), inflammatory parameters, and patients' and physicians' opinion. Associations were tested by multiple logistic regression. RESULTS: From a cohort of 236 patients, 77 patients treated with TCZ were included (median age 62 years (IQR 53.0-72.0), 64.9% were males), 42.9% had Charlson index ≥3; hypertension (41.6%), obesity (34.7%), and diabetes (20.8%). Median follow-up was 83.0 days (78.0-86.5), no patient was readmitted. ICU admission was required for 42 (54.5%), invasive mechanical ventilation in 38 (49.4%) and 10 patients died (12.9% global, 23.8% at ICU admitted). After multivariate adjustment, TCZ response by BCRSS (OR 0.03 (0.01-0.68), p = 0.028), and Charlson index (OR 3.54 (1.20-10.44), p = 0.022) has been identified as independent factors associated with mortality. Median of hospital stay was 16.0 days (11.0-23.0); BCRSS, physician subjective and D-dimer response were associated with shorter hospitalization stay. CONCLUSIONS: In a Mediterranean cohort, use of tocilizumab for severe COVID-19 show 12.9% of mortality. Early TCZ-response by BCRSS and low comorbidity were associated with increased survival. Early TCZ-response was related to shorter median hospital stay.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Antivirais/administração & dosagem , Betacoronavirus/imunologia , Infecções por Coronavirus/terapia , Pneumonia Viral/terapia , Respiração Artificial/estatística & dados numéricos , Adulto , Idoso , Betacoronavirus/patogenicidade , COVID-19 , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/imunologia , Infecções por Coronavirus/mortalidade , Quimioterapia Combinada , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Seguimentos , Mortalidade Hospitalar , Humanos , Infusões Intravenosas , Interleucina-6/imunologia , Interleucina-6/metabolismo , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/diagnóstico , Pneumonia Viral/imunologia , Pneumonia Viral/mortalidade , Prognóstico , Receptores de Interleucina-6/antagonistas & inibidores , Receptores de Interleucina-6/metabolismo , Testes de Função Respiratória/estatística & dados numéricos , Estudos Retrospectivos , SARS-CoV-2 , Índice de Gravidade de Doença , Espanha/epidemiologia , Análise de Sobrevida , Fatores de Tempo , Tempo para o Tratamento , Resultado do Tratamento
11.
J Neurochem ; 150(2): 218-230, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31077373

RESUMO

Previous studies have indicated the potential of cerebrospinal fluid (CSF) α-synuclein (α-syn) to be an additional biomarker for improving differential diagnosis of Alzheimer's disease (AD). We evaluated α-syn diagnostic performance across a well-characterized patient cohort with long-term follow-up. For this purpose, CSF α-syn levels were determined in 25 subjects diagnosed with stable mild cognitive impairment (stable MCI; n = 25), 27 MCI cases due to AD (MCI-AD; n = 32), 24 MCI cases due to Lewy body disease (MCI-LBD; n = 24) and control subjects (Ctrl; n = 18). CSF α-syn levels discriminate between the four groups. There were higher α-syn levels in MCI-AD patients and lower levels in MCI-LBD patients. The combination of α-syn and P-tau resulted in a specificity of 99% and a sensitivity of 97% for MCI-AD. MCI-AD patients with early psychotic symptoms (n = 9) displayed a trend towards a decrease in P-tau and α-syn compared to the MCI-AD patients without psychotic symptoms (n = 23). We conclude that adding CSF α-syn to central core AD biomarkers improves an early differential diagnosis of MCI-AD from other forms of MCI. OPEN SCIENCE BADGES: This article has received a badge for *Open Materials* because it provided all relevant information to reproduce the study in the manuscript. The complete Open Science Disclosure form for this article can be found at the end of the article. More information about the Open Practices badges can be found at https://cos.io/our-services/open-science-badges/.


Assuntos
Doença de Alzheimer/complicações , Biomarcadores/líquido cefalorraquidiano , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/etiologia , alfa-Sinucleína/líquido cefalorraquidiano , Idoso , Doença de Alzheimer/líquido cefalorraquidiano , Disfunção Cognitiva/líquido cefalorraquidiano , Estudos Transversais , Diagnóstico Diferencial , Diagnóstico Precoce , Feminino , Humanos , Doença por Corpos de Lewy/diagnóstico , Masculino , Pessoa de Meia-Idade , Proteínas tau/líquido cefalorraquidiano
12.
Clin Endocrinol (Oxf) ; 89(4): 414-423, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29947044

RESUMO

OBJECTIVE: HIV infection is associated with an increased risk of cardiovascular disease. Irisin is a miokyne secreted by skeletal muscle, which may influence insulin homeostasis, nonalcoholic fatty liver disease (NAFLD) and atherosclerosis. Our objective was to evaluate the relationships between serum irisin, insulin homeostasis, NAFLD and subclinical atherosclerosis in HIV-infected males. DESIGN: Cross-sectional study in a cohort of HIV-infected patients. PATIENTS: Inclusion criteria: men older than 18 years; antiretroviral therapy (ART) -naïve or on effective ART (<50 HIV-1 RNA copies/mL) without changes in the previous 6 months; no diabetes or hepatitis C. MEASUREMENTS: Irisin was measured by enzymatic immunoassay (Phoenix Pharmaceuticals), insulin sensitivity by homeostasis model assessment of insulin resistance (HOMA-IR), as well as the 2-hour continuous infusion of glucose with model assessment (CIGMA-HOMA). Hepatic steatosis was measured by 1-H magnetic resonance spectroscopy, subclinical atherosclerosis by evaluation of carotid intima-media thickness (C-IMT), measured by Ultrasonography. RESULTS: Eight nine men (age 42.0 ± 8.3 years, duration of HIV infection 7.9 ± 5.6 years, CD4 count 547 ± 279 cells/mL) were included. Circulating irisin was positively related to HOMA-IR and CIGMA-HOMA, hepatic triglyceride content, and to VAT/SAT ratio. Higher irisin concentrations were associated with higher C-IMT, although this association did not persist in multivariate analysis. Lipodystrophy and a higher baseline PAI-1 concentration were independently associated with C-IMT. CONCLUSIONS: In male HIV patients without diabetes, higher irisin concentrations are positively associated with insulin resistance, NAFLD and subclinical atherosclerosis. However, waist-hip-ratio is the main determinant of insulin resistance, and PAI-1 and lipodystrophy were the strongest determinants of IMT in this population.


Assuntos
Aterosclerose/sangue , Fibronectinas/sangue , Infecções por HIV/sangue , Hepatopatia Gordurosa não Alcoólica/sangue , Adulto , Espessura Intima-Media Carotídea , Estudos Transversais , Humanos , Resistência à Insulina/fisiologia , Espectroscopia de Ressonância Magnética , Masculino , Pessoa de Meia-Idade
13.
AJR Am J Roentgenol ; 210(6): 1226-1234, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29570376

RESUMO

OBJECTIVE: The purpose of this study was to evaluate the superiority of either of two protocols for combined contrast-enhanced thoracic and abdominal CT of patients with lung cancer by comparing contrast enhancement, contrast-related artifacts, image quality, and radiation dose. SUBJECTS AND METHODS: In this randomized controlled crossover clinical trial, 77 patients who underwent 203 CT examinations were enrolled. All patients underwent at least two examinations performed with both protocols. Protocol A consisted of two acquisitions: one 35-second delayed CT acquisition for the chest followed by a 70-second delayed abdominal acquisition. Protocol B was a single 60-second delayed acquisition covering the chest and the abdomen. Attenuation and noise of the aorta, pulmonary artery, and liver were measured. Contrast-related artifacts, mediastinal lymph node visualization, liver enhancement, and noise were visually scored. Dose-length product was recorded. Statistical analysis was performed by t and chi-square tests and kappa statistics. RESULTS: Contrast-related artifacts were more severe at all evaluated levels, and visualization of lymph node regions was statistically significantly worse with protocol A. There were no differences in enhancement or noise score of the liver. Tumor delineation and pleural findings were better evaluated with delayed phase images. Dose-length product was significantly higher with protocol A (645.0 vs 521.5 mGy · cm; p < 0.0001). CONCLUSION: A single 60-second delayed acquisition for thoracic and abdominal contrast-enhanced CT is associated with less contrast artifact and affords better visualization of lymph nodes at a lower radiation dose while acceptable vascular and hepatic contrast enhancement is maintained.


Assuntos
Meios de Contraste/administração & dosagem , Neoplasias Pulmonares/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Artefatos , Estudos Cross-Over , Diagnóstico Diferencial , Feminino , Humanos , Iopamidol/análogos & derivados , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Doses de Radiação , Interpretação de Imagem Radiográfica Assistida por Computador , Radiografia Abdominal , Radiografia Torácica
15.
Eur J Clin Invest ; 47(8): 591-599, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28664622

RESUMO

BACKGROUND: Pathogenesis of atherosclerosis is complex, and differences between HIV-infected patients and general population cannot be completely explained by the higher prevalence of traditional cardiovascular risk factors. We aimed to analyse the association between inflammation and subclinical atherosclerosis in HIV patients with low Framingham risk score. MATERIALS AND METHODS: Case-control study. SETTING: Outpatient Infectious Diseases clinic in a university hospital. SUBJECTS: HIV-1-infected patients aged > 35 years receiving antiretroviral treatment with viral load < 50 copies/mL and Framingham risk score < 10%. EXCLUSION CRITERIA: inflammatory diseases; dyslipidaemia requiring statins; smoking > 5 cigarettes/day; diabetes; hypertension; vascular diseases. MAIN OUTCOME: subclinical atherosclerosis determined by ultrasonography: common carotid intima-media thickness greater than 0·8 mm or carotid plaque presence. Explanatory variables: ribosomal bacterial DNA (rDNA), sCD14, interleukin-6 (IL-6) and TNF-α. RESULTS: Eighty-four patients were included, 75% male, mean age 42 years and mean CD4+ cells 657 ± 215/mm3 . Median Framingham risk score was 1% at 10 years (percentile 25-75: 0·5-4%). Eighteen patients (21%) had subclinical atherosclerosis; the associated factors were older age (P = 0·001), waist-hip ratio (P = 0·01), time from HIV diagnosis (P = 0·02), rDNA (P = 0·04) and IL-6 (P = 0·01). In multivariate analysis, OR for subclinical atherosclerosis was 7 (95% CI, 1.3-40, P = 0.02) and 9 (95% CI, 1.0-85, P = 0.04) for patients older than 44 years and IL-6 > 6·6 pg/mL, respectively. CONCLUSIONS: Well-controlled HIV patients with low Framingham risk score have a high prevalence of subclinical carotid atherosclerosis, and the main risk factors are age and inflammation. These patients are not receiving primary prophylaxis for cardiovascular events according to current guidelines.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Doenças das Artérias Carótidas/virologia , Infecções por HIV/tratamento farmacológico , Adulto , Fatores Etários , Biomarcadores/metabolismo , Índice de Massa Corporal , Doenças das Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media Carotídea , Estudos de Casos e Controles , DNA Ribossômico/metabolismo , Feminino , Humanos , Interleucina-6/metabolismo , Receptores de Lipopolissacarídeos/metabolismo , Masculino , Fatores de Risco , Carga Viral
16.
Int J Gynecol Cancer ; 26(9): 1722-1726, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27518143

RESUMO

OBJECTIVE: The purpose of this study was to compare the long-term safety, disease-free survival, and recurrence rate of total laparoscopic hysterectomy using uterine manipulator and abdominal hysterectomy in the surgical treatment in early-stage endometrial cancer. STUDY DESIGN: This was a cohort study of 147 patients with clinical endometrial cancer (laparoscopic surgery group, 77 women; laparotomy group, 70 women). Data were evaluated and analyzed by intention-to-treat principle, and survival data of stage I endometrial cancer (129 patients; 66 from laparoscopic surgery group and 60 from laparotomy group) were estimated by using the Kaplan-Meier curves. RESULTS: After a follow-up period of 60 months for both laparoscopic surgery and laparotomy groups, no significant difference in the cumulative recurrence rates (7.4% and 13.1%, P = 0.091) and overall survival (97.1% and 95.1%, P = 0.592) was detected between both groups of stage I endometrial cancer. Conversion to laparotomy occurred in 10.4% (8/77) of the laparoscopic procedures. Laparoscopic hysterectomy was associated with less use of pain medication (P = 0.001) and a shorter hospital stay (P < 0.001), but the procedure took longer than laparotomic hysterectomy (P < 0.001). The proportion of patients with intraoperative and long-term complications was not significantly different between both groups. The use of uterine manipulators did not have increased recurrence rate in patients treated with laparoscopic approach. CONCLUSIONS: The laparoscopic surgery approach to early-stage endometrial cancer using uterine manipulators is as safe and effective as the laparotomic approach.


Assuntos
Carcinoma/cirurgia , Neoplasias do Endométrio/cirurgia , Histerectomia/instrumentação , Recidiva Local de Neoplasia/epidemiologia , Idoso , Carcinoma/mortalidade , Estudos de Coortes , Intervalo Livre de Doença , Neoplasias do Endométrio/mortalidade , Feminino , Humanos , Histerectomia/métodos , Pessoa de Meia-Idade , Espanha/epidemiologia
17.
Clin Gastroenterol Hepatol ; 12(2): 311-6, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23958561

RESUMO

BACKGROUND & AIMS: Two new classification systems for the severity of acute pancreatitis (AP) have been proposed, the determinant-based classification (DBC) and a revision of the Atlanta classification (RAC). Our aim was to validate and compare these classification systems. METHODS: We analyzed data from adult patients with AP (543 episodes of AP in 459 patients) who were admitted to Hospital General Universitario de Alicante from December 2007 to February 2013. Imaging results were reviewed, and the classification systems were validated and compared in terms of outcomes. RESULTS: Pancreatic necrosis was present in 66 of the patients (12%), peripancreatic necrosis in 109 (20%), walled-off necrosis in 61 (11%), acute peripancreatic fluid collections in 98 (18%), and pseudocysts in 19 (4%). Transient and persistent organ failures were present in 31 patients (6%) and 21 patients (4%), respectively. Sixteen patients (3%) died. On the basis of the DBC, 386 (71%), 131 (24%), 23 (4%), and 3 (0.6%) patients were determined to have mild, moderate, severe, or critical AP, respectively. On the basis of the RAC, 363 patients (67%), 160 patients (30%), and 20 patients (4%) were determined to have mild, moderately severe, or severe AP, respectively. The different categories of severity for each classification system were associated with statistically significant and clinically relevant differences in length of hospital stay, need for admission to the intensive care unit, nutritional support, invasive treatment, and in-hospital mortality. In comparing similar categories between the classification systems, no significant differences were found. CONCLUSION: The DBC and the RAC accurately classify the severity of AP in subgroups of patients.


Assuntos
Pancreatite/classificação , Índice de Gravidade de Doença , Doença Aguda , Idoso , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Necrose , Apoio Nutricional , Pâncreas/patologia
18.
Clin Gastroenterol Hepatol ; 12(6): 997-1002, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24183957

RESUMO

BACKGROUND & AIMS: Predicting level of fluid sequestration could help identify patients with acute pancreatitis (AP) who need more or less aggressive fluid resuscitation. We investigated factors associated with level of fluid sequestration in the first 48 hours after hospital admission in patients with AP and effects on outcome. METHODS: We analyzed data from consecutive adult patients with AP admitted to the Brigham and Women's Hospital in Boston, Massachusetts, from June 2005 to December 2007 (n = 266) or the Alicante University General Hospital in Spain from September 2010 to December 2012 (n = 137). Level of fluid sequestration in the first 48 hours after hospital admission was calculated by subtracting the total amount of fluid administered and lost in the first 48 hours of hospitalization. Demographic and clinical variables obtained in the emergency department were analyzed to identify factors associated with level of fluid sequestration in the first 48 hours after hospital admission. Outcome assessed included length of hospital stay, acute fluid collection(s), pancreatic necrosis, persistent organ failure, and mortality. RESULTS: The median level of fluid sequestration in the first 48 hours after hospital admission was 3.2 L (1.4-5 L). The simple and multiple linear regression models showed that younger age, alcohol etiology, hematocrit, glucose, and systemic inflammatory response syndrome were significantly associated with increased levels of fluid sequestration in the first 48 hours after hospital admission. Increased level of fluid sequestration in the first 48 hours was significantly associated with longer hospital stays and higher rates of acute fluid collection, pancreatic necrosis, and persistent organ failure. There was a nonsignificant trend toward a higher level of fluid sequestration in the first 48 hours among patients who died. CONCLUSION: Age, alcoholic etiology of AP, hematocrit, glucose, and presence of systemic inflammatory response syndrome in the emergency department were independent predictors of increased levels of fluid sequestration in the first 48 hours after hospital admission. These patients have higher risks of local and systemic complications and longer hospital stays.


Assuntos
Pancreatite Necrosante Aguda/complicações , Pancreatite Necrosante Aguda/patologia , Desequilíbrio Hidroeletrolítico/diagnóstico , Desequilíbrio Hidroeletrolítico/patologia , Administração Intravenosa , Adulto , Idoso , Boston , Estudos de Coortes , Feminino , Hidratação , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Pancreatite Necrosante Aguda/mortalidade , Pancreatite Necrosante Aguda/terapia , Estudos Retrospectivos , Espanha , Análise de Sobrevida , Resultado do Tratamento , Desequilíbrio Hidroeletrolítico/terapia
20.
Vaccines (Basel) ; 12(4)2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38675752

RESUMO

Influenza is a health problem and vaccination is the most effective measure to prevent it. The objective of this study was to evaluate the impact of the COVID-19 pandemic on vaccination coverage (VC) against influenza in healthcare workers (HCWs). A cross-sectional study was conducted at the Dr. Balmis University General Hospital in the province of Alicante (Spain), in which vaccination data were collected retrospectively. Adverse effects (AEs) were detected via telephone call between 15 and 30 days after vaccination. The existence of significant changes in VC between the different seasons studied was evaluated using Chi square with a statistical significance level of p < 0.05. A total of 8403 HCWs vaccinated throughout the different seasons were studied. The vaccination coverage of HCWs for influenza pre-COVID-19 pandemic (2019/20 season) was 51.9%; increased during the pandemic to 67.9% (2020/21 season) and 65.5% (2021/22 season); and, after the pandemic, it decreased to 42.7% (2022/23 season) (p < 0.05). The most frequent reason for vaccination during the periods evaluated was "self-protection", followed by "protection of patients" and "protection of family members". Of all HCWs evaluated, 26.6% (1460/5493) reported at least one AE. During the COVID-19 pandemic, HCWs' influenza vaccination coverage fluctuated considerably. There has been an increase in VC during the most critical moments of the pandemic, both in the 2020/21 and 2021/22 seasons, which has, subsequently, decreased in the 2022/2023 season, to levels below pre-pandemic (2019/2020 season), which justifies implementing specific measures to recover VC in Spain.

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