33 results on '"Freitas AD"'
Search Results
2. A Cluster of Diutina catenulata Funguria in Patients with Coronavirus Disease 2019 (COVID-19) Hospitalized in a Tertiary Reference Hospital from Rio de Janeiro, Brazil.
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Almeida-Paes R, Teixeira MM, Oliveira FA, Almeida MA, Almeida-Silva F, Geraldo KM, Nunes EP, Baker BM, Stajich JE, Grinsztejn B, Veloso VG, Freitas AD, and Zancopé-Oliveira RM
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- Humans, Brazil epidemiology, Male, Female, Middle Aged, Aged, Adult, Phylogeny, Microbial Sensitivity Tests, Saccharomycetales genetics, Saccharomycetales isolation & purification, Saccharomycetales classification, Whole Genome Sequencing, COVID-19 microbiology, COVID-19 epidemiology, Tertiary Care Centers statistics & numerical data, Antifungal Agents therapeutic use, Antifungal Agents pharmacology, SARS-CoV-2 genetics, SARS-CoV-2 drug effects
- Abstract
During the COVID-19 pandemic, fungal infections, especially pulmonary aspergillosis, mucormycosis, and invasive candidiasis, have emerged as a significant health concern. Beyond Candida albicans, the most common cause of invasive candidiasis, other rare ascomycetous yeast species have been described in tertiary care units, potentially posing a broader health threat. We have isolated, from September 2020 to June 2021, nine Diutina catenulata strains from urine samples of six patients. This was intriguing as this fungus had not been previously identified in our institution, nor after June 2021. Therefore, we decided to outline the clinical features of the patients with this rare pathogen, to describe phenotypic characteristics, including antifungal susceptibility profiles, of this yeast species and to identify the genetic makeup through whole-genome sequencing analysis to evaluate if this was a cluster of genetically similar D. catenulata isolates in our institution. The strains were identified through MALDI-TOF MS analyses and Sanger sequencing of two rDNA regions. All patients yielding D. catenulata from urine samples needed ventilator support and used urinary catheters during hospitalization for treatment of COVID-19. None of them had received COVID-19 vaccines. Morphological and biochemical profiles of the nine strains were largely consistent, although fluconazole susceptibility varied, ranging from 4 to 32 μg/mL. Phylogenomic analysis revealed minimal genetic variation among the isolates, with low intrapopulation variation, supported by the identification of only 84 SNPs across all strains. Therefore, we propose that the yeast strains isolated were part of a cluster of D. catenulata funguria in the context of COVID-19., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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3. Meningeal Sporotrichosis Due to Sporothrix brasiliensis : A 21-Year Cohort Study from a Brazilian Reference Center.
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Lima MA, Freitas DFS, Oliveira RVC, Fichman V, Varon AG, Freitas AD, Lamas CC, Andrade HB, Veloso VG, Almeida-Paes R, Almeida-Silva F, Zancopé-Oliveira RM, de Macedo PM, Valle ACF, Silva MTT, Araújo AQC, and Gutierrez-Galhardo MC
- Abstract
Meningeal sporotrichosis is rare and occurs predominantly in immunosuppressed individuals. This retrospective study explored clinical and laboratory characteristics, treatment, and prognosis of patients with disseminated sporotrichosis who underwent lumbar puncture (LP) at a Brazilian reference center from 1999 to 2020. Kaplan-Meier and Cox regression models were used to estimate overall survival and hazard ratios. Among 57 enrolled patients, 17 had meningitis. Fifteen (88.2%) had HIV infection, and in 6 of them, neurological manifestations occurred because of the immune reconstitution inflammatory syndrome (IRIS). The most frequent symptom was headache (88.2%). Meningeal symptoms at first LP were absent in 7/17 (41.2%) patients. Sporothrix was diagnosed in cerebrospinal fluid either by culture or by polymerase chain reaction in seven and four patients, respectively. All but one patient received prolonged courses of amphotericin B formulations, and seven received posaconazole, but relapses were frequent. Lethality among patients with meningitis was 64.7%, with a higher chance of death compared to those without meningitis (HR = 3.87; IC95% = 1.23;12.17). Meningeal sporotrichosis occurs mostly in people with HIV and can be associated with IRIS. Screening LP is indicated in patients with disseminated disease despite the absence of neurological complaints. Meningitis is associated with poor prognosis, and better treatment strategies are needed.
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- 2022
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4. Paracoccidioidomycosis in people living with HIV/AIDS: A historical retrospective cohort study in a national reference center for infectious diseases, Rio de Janeiro, Brazil.
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Falcão EM, de Macedo PM, Freitas DFS, Freitas AD, Grinsztejn B, Veloso VG, Almeida-Paes R, and do Valle ACF
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- Brazil epidemiology, Cohort Studies, Female, Humans, Male, Retrospective Studies, Coinfection, HIV Infections complications, HIV Infections drug therapy, Paracoccidioidomycosis complications, Paracoccidioidomycosis diagnosis, Paracoccidioidomycosis epidemiology
- Abstract
Paracoccidioidomycosis (PCM) is one of the main endemic systemic mycoses in Latin America, usually occurring in rural areas. When PCM occurs simultaneously with underlying immunosuppressive conditions, it can present as an opportunistic disease. Between 2000 and 2017, literature reported around 200 PCM cases in people living with HIV/AIDS (PLWHA). To address research gaps on this co-infection and to study its possible temporal changes in the last decade, we performed an active co-infection case search on the HIV/AIDS and PCM cohorts from a Brazilian reference center database from 1989 to 2019. We found 20 PLWHA among 684 PCM patients (2.92%), predominantly male (70.0%) and urban workers (80.0%). The median age of patients was higher in the 2010-2019 decade (p = 0.006). The occurrence of PCM in PLWHA was lower when compared with other fungal diseases. Although 50.0% of the patients had already been diagnosed with HIV infection and presented CD4+ T cell counts greater than 200/mm3 at the time of PCM diagnosis, the suspicion of immunosuppression in the context of atypical and more severe clinical forms of PCM revealed the diagnosis of HIV infection in 35.0% of the patients. Two (10.0%) patients had an evolution compatible with immune reconstitution inflammatory syndrome (IRIS) after starting antiretroviral therapy (ART).We highlight the importance of considering a PCM diagnosis in PLWHA to prevent a late-onset treatment and progression to severe manifestations and unfavorable outcomes. In addition, HIV investigation is recommended in PCM patients, especially those with atypical and more severe clinical presentations., Competing Interests: The authors have declared that no competing interests exist
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- 2022
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5. Acute Pulmonary Histoplasmosis Following COVID-19: Novel Laboratorial Methods Aiding Diagnosis.
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de Macedo PM, Freitas AD, Bártholo TP, Bernardes-Engemann AR, Almeida MA, Almeida-Silva F, Zancopé-Oliveira RM, and Almeida-Paes R
- Abstract
The acute form of histoplasmosis usually occurs after the exposition of more than one individual to a common environmental source harboring Histoplasma capsulatum . Here, we present two cases of acute pulmonary histoplasmosis seen within two weeks at a reference center for infectious diseases at Rio de Janeiro, Brazil. The patients did not present a common epidemiologic history for histoplasmosis, however both presented COVID-19 before the onset of histoplasmosis symptoms. Due to the difficulties in the diagnosis of acute histoplasmosis, novel laboratory methods such as Western Blot and PCR were included in the investigation of these cases. Both patients presented negative cultures for H. capsulatum and negative urinary galactomannan. However, they presented H and M bands in the Western blot as well as a positive H. capsulatum DNA detection in sputum. These results were available approximately 36 h after sample collection, fastening the beginning of treatment of one patient. Both patients progressed well with itraconazole treatment. These cases suggest that COVID-19 may facilitate the development of acute pulmonary histoplasmosis and, therefore, clinicians must be aware of this differential diagnosis in patients from endemic areas with fever and coughing after recovery from COVID-19.
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- 2021
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6. Socio-economic urban scaling properties: Influence of regional geographic heterogeneities in Brazil.
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de Castro CP, Dos Santos GF, de Freitas AD, Dos Santos MI, Andrade RFS, and Barreto ML
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- Brazil, Humans, Cities statistics & numerical data, Geography, Socioeconomic Factors
- Abstract
The recent efforts dedicated to understanding important features and consequences of city growth have profited from the scaling approach to urban indicators. This kind of analysis can be conveniently used to investigate the impact of geo-economic transformations, like fast urbanization and industrial development, which occurred in continental size countries (e.g., India, China, and Brazil) during the past half-century. Profiting from high quality data, this work explores how scaling relationships among urban indicators are influenced by strong regional heterogeneities in Brazil. It is based on economic, infrastructure and violence related data sets for the time interval 2002-2016. Results indicate that regional specificities related to infrastructure, economic development, and geography have a larger influence on the absolute value of the urban indexes. Regional scaling similarities and differences among Brazilian regions were also uncovered. Interesting enough, the results indicate that the richest and poorest Brazilian regions share similar scaling behavior, despite all huge different local influences. By contrast, the results for the two richest regions, with similar average values of urban indexes and the same kind of local influences have rather different scaling properties. Thus, scaling analysis suggests that distinct political solutions might be necessary to improve life's quality, even for two regions with similar average values of urban indicators., Competing Interests: The authors have declared that no competing interests exist.
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- 2020
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7. Neuroparacoccidioidomycosis: A 13-Year Cohort Study, Rio de Janeiro, Brazil.
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de Macedo PM, Falcão EMM, Freitas DFS, Freitas AD, Coutinho ZF, Muniz MM, Zancopé-Oliveira RM, Almeida-Paes R, da Silva MTT, and do Valle ACF
- Abstract
Neuroparacoccidioidomycosis (NPCM) is a rare and severe clinical presentation of paracoccidioidomycosis (PCM). We performed a retrospective cohort study at the Evandro Chagas National Institute of Infectious Diseases (INI/Fiocruz), a reference center for PCM in the state of Rio de Janeiro, Brazil. All cases of PCM admitted to the INI/Fiocruz from January 2007 to December 2019 were reviewed. Eight (3.9%) among 207 patients met the diagnostic criteria for NPCM. The mean age was 44.6 years and the male:female ratio was 7:1. All cases presented multifocal disease, 5 (62.5%) the chronic form and 3 (37.5%) the acute/subacute form. All patients presented the pseudotumoral pattern and 6 (75.0%) had multiple lesions in the cerebral hemispheres. Seizures and motor symptoms were the most frequent clinical manifestations (50.0%, each). The treatment of choice was sulfamethoxazole/trimethoprim (SMZ-TMP) and fluconazole, in association (87.5%). Most patients responded well to the treatment. Sequela and death occurred in one (12.5%) patient, each.
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- 2020
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8. COVID-19 and acute juvenile paracoccidioidomycosis coinfection.
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de Macedo PM, Freitas DFS, Varon AG, Lamas CDC, Ferreira LCF, Freitas AD, Ferreira MT, Nunes EP, Siqueira MM, Veloso VG, and do Valle ACF
- Subjects
- Acute Disease, COVID-19, Coronavirus Infections diagnosis, Coronavirus Infections transmission, Humans, Male, Pandemics, Paracoccidioidomycosis diagnosis, Paracoccidioidomycosis immunology, Pneumonia, Viral diagnosis, Pneumonia, Viral transmission, Radiography, Thoracic, SARS-CoV-2, Young Adult, Betacoronavirus, Coinfection, Coronavirus Infections complications, Cross Infection complications, Paracoccidioidomycosis complications, Pneumonia, Viral complications
- Abstract
Competing Interests: The authors have declared that no competing interests exist.
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- 2020
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9. Cerebrospinal fluid PCR: A new approach for the diagnosis of CNS sporotrichosis.
- Author
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Oliveira MME, Muniz MM, Almeida-Paes R, Zancope-Oliveira RM, Freitas AD, Lima MA, Gutierrez-Galhardo MC, and Freitas DFS
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- Adult, Central Nervous System Fungal Infections microbiology, Cerebrospinal Fluid microbiology, Female, Humans, Male, Sporothrix, Sporotrichosis microbiology, Central Nervous System Fungal Infections cerebrospinal fluid, Central Nervous System Fungal Infections diagnosis, Polymerase Chain Reaction, Sporotrichosis cerebrospinal fluid, Sporotrichosis diagnosis
- Abstract
Competing Interests: The authors have declared that no competing interests exist.
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- 2020
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10. KAsH: A new tool to predict in-hospital mortality in patients with myocardial infarction.
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Ponte Monteiro J, Costa Rodrigues R, Neto M, Sousa JA, Mendonça F, Gomes Serrão M, Santos N, Silva B, Faria AP, Pereira D, Henriques E, Freitas AD, and Mendonça I
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- Adult, Aged, Aged, 80 and over, Blood Pressure physiology, Female, Heart Failure, Heart Rate physiology, Hospitalization, Humans, Male, Middle Aged, Prognosis, Prospective Studies, Registries, Myocardial Infarction diagnosis, Myocardial Infarction mortality, Risk Assessment methods
- Abstract
Introduction: Complex risk scores have limited applicability in the assessment of patients with myocardial infarction (MI). In this work, the authors aimed to develop a simple to use clinical score to stratify the in-hospital mortality risk of patients with MI at first medical contact., Methods: In this single-center prospective registry assessing 1504 consecutively admitted patients with MI, the strongest predictors of in-hospital mortality were selected through multivariate logistic regression. The KAsH score was developed according to the following formula: KAsH=(Killip class×Age×Heart rate)/systolic blood pressure. Its predictive power was compared to previously validated scores using the DeLong test. The score was categorized and further compared to the Killip classification., Results: The KAsH score displayed excellent predictive power for in-hospital mortality, superior to other well-validated risk scores (AUC: KAsH 0.861 vs. GRACE 0.773, p<0.001) and robust in subgroup analysis. KAsH maintained its predictive capacity after adjustment for multiple confounding factors such as diabetes, heart failure, mechanical complications and bleeding (OR 1.004, 95% CI 1.001-1.008, p=0.012) and reclassified 81.5% of patients into a better risk category compared to the Killip classification. KAsH's categorization displayed excellent mortality discrimination (KAsH 1: 1.0%, KAsH 2: 8.1%, KAsH 3: 20.4%, KAsH 4: 55.2%) and better mortality prediction than the Killip classification (AUC: KAsH 0.839 vs. Killip 0.775, p<0.0001)., Conclusion: KAsH, an easy to use score calculated at first medical contact with patients with MI, displays better predictive power for in-hospital mortality than existing scores., (Copyright © 2019 Sociedade Portuguesa de Cardiologia. Publicado por Elsevier España, S.L.U. All rights reserved.)
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- 2019
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11. Surgical treatment of intestinal perforation in Behçet Syndrome: an unusual presentation.
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Vicente CS and Freitas AD
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- Adult, Behcet Syndrome complications, Behcet Syndrome surgery, Humans, Intestinal Perforation surgery, Male, Tomography, X-Ray Computed methods, Behcet Syndrome diagnosis, Intestinal Perforation etiology, Oral Ulcer etiology, Uveitis etiology
- Abstract
Behçet syndrome is a chronic, recurring, systemic disorder characterized by the histopathologic finding of nonspecific vasculitis in multiple organs. Behçet syndrome involves the gastrointestinal tract in 10-50% of patients; The main sites of involvement are the terminal ileum and cecum. In patients with Behçet syndrome, CT is advocated for early detection of complications as well as for exclusion of other abdominal pathologic conditions but there is no specific exam. The report of histology in conjunction with the clinical history and the presence of oral ulcers, uveitis and suspected cutaneous lesions suggests the diagnosis. The optimal medical treatment of Behçet syndrome has not yet been well established. In rare cases surgery must be required to control the disease. The authors report one case of Behcet Syndrome presenting with intestinal perforation.
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- 2018
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12. Hepatic Disease with Portal Hypertension and Acute Juvenile Paracoccidioidomycosis: A Report of Two Cases and Literature Review.
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de Macedo PM, Almeida-Paes R, Freitas DFS, Brito-Santos F, Figueiredo-Carvalho MHG, de Almeida Soares JC, Freitas AD, Zancopé-Oliveira RM, and do Valle ACF
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- Adolescent, Adult, Amphotericin B therapeutic use, Female, Fungal Proteins genetics, Humans, Latin America, Male, Paracoccidioides classification, Paracoccidioides genetics, Paracoccidioidomycosis drug therapy, Phylogeny, Sequence Analysis, DNA, Treatment Outcome, Trimethoprim, Sulfamethoxazole Drug Combination therapeutic use, Hypertension, Portal etiology, Hypertension, Portal pathology, Liver Diseases etiology, Liver Diseases pathology, Paracoccidioides isolation & purification, Paracoccidioidomycosis complications, Paracoccidioidomycosis diagnosis
- Abstract
Paracoccidioidomycosis (PCM) is a neglected systemic mycosis endemic to Latin America caused by dimorphic fungi of the genus Paracoccidioides. The acute juvenile PCM is a severe type of presentation that usually affects young vulnerable patients and rarely progresses to portal hypertension. Here, two cases of liver disease and portal hypertension as complications of acute juvenile PCM are reported. Diagnosis of PCM was performed by isolation of the fungus and molecular identification of the strains provided through partial sequencing of two protein encoding genes, arf and gp43. Genotypic analysis revealed that Paracoccidioides brasiliensis S1 was the phylogenic species involved in both cases. Patients presented a good clinical response to amphotericin B and sulfamethoxazole-trimethoprim. These results highlight the importance of the interdisciplinary approach in patients with severe forms of PCM to avoid and treat complications, and the necessity of further investigations focusing on host-pathogen interaction in order to explain the broad clinical spectrum in PCM as well as the severity and poor outcome in some clinical cases.
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- 2017
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13. Acute Paracoccidioidomycosis Due to Paracoccidioides brasiliensis S1 Mimicking Hypereosinophilic Syndrome with Massive Splenomegaly: Diagnostic Challenge.
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Marques de Macedo P, de Oliveira LC, Freitas DF, da Rocha JA, Freitas AD, Nucci M, Zancopé-Oliveira RM, Almeida-Paes R, and do Valle AC
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- Adolescent, Diagnosis, Differential, Humans, Male, Paracoccidioides genetics, Paracoccidioidomycosis drug therapy, Splenectomy, Splenomegaly etiology, Hypereosinophilic Syndrome diagnosis, Paracoccidioides isolation & purification, Paracoccidioidomycosis diagnosis, Paracoccidioidomycosis microbiology, Splenomegaly microbiology
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- 2016
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14. Guillain-Barré syndrome associated with Zika virus infection.
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Brasil P, Sequeira PC, Freitas AD, Zogbi HE, Calvet GA, de Souza RV, Siqueira AM, de Mendonca MC, Nogueira RM, de Filippis AM, and Solomon T
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- Brazil, DNA, Viral genetics, Female, Humans, Real-Time Polymerase Chain Reaction, Young Adult, Zika Virus genetics, Zika Virus isolation & purification, Zika Virus Infection cerebrospinal fluid, Zika Virus Infection diagnosis, Guillain-Barre Syndrome virology, Zika Virus Infection complications
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- 2016
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15. WRIST ARTHRODESIS WITH MINIMAL FIXATION PRESERVING THE CARPOMETACARPAL JOINTS.
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Pardini AG Jr, Pádua Gonçalves RF, Freitas AD, and Chaves AB
- Abstract
Objective: Wrist arthrodesis is a surgical procedure that should always be considered in cases of pathological conditions in which anatomical and functional structures are altered. In general, the results are very satisfactory, particularly for pain relief, and in the majority of cases, there is considerable functional improvement. Various techniques have been described, with different methods of internal fixation, most of which include the carpometacarpal joints in the fusion. The objective of this study was to evaluate the results from wrist arthrodesis using a technique that is simpler, more biological, less expensive, and does not involve the carpometacarpal joints., Methods: Fifteen patients with wrist arthrodesis were evaluated (six with sequelae from trauma, four with rheumatoid arthritis, three with Kienbock grade IV, one with Preiser and one with panarthrosis). The technique consisted of using an iliac bone plate and internal fixation with Kirschner wires, avoiding the carpometacarpal joints., Results: The evaluation was based on consolidation time (93% in seven weeks); movements of the fingers and pronosupination; pinch and grasp strength; functional evaluation through the DASH, pain and patient satisfaction questionnaires. In general, the results were similar to those of other, more aggressive techniques, and the non-inclusion of the carpometacarpal joints did not affect the final result., Conclusion: Wrist arthrodesis with fixation using Kirschner wires and an iliac bone plate, preserving the carpometacarpal joints, gives good or excellent results that are not inferior to those of other techniques that have been described. However, it presents major advantages over other methods: it is less aggressive and cheaper, and does not have the inconvenience and complications associated with the use of plates and screws.
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- 2015
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16. Lactate as predictor of mortality in polytrauma.
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Freitas AD and Franzon O
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- Adult, Cohort Studies, Female, Humans, Male, Prognosis, Retrospective Studies, Lactic Acid blood, Multiple Trauma blood, Multiple Trauma mortality
- Abstract
Background: The lactate is a product of anaerobic metabolism; it can be used as a marker on demand and availability of oxygen. Changes in lactate levels can be effectively used as a marker in resuscitation maneuvers, even in patients with stable vital signs., Aim: To verify the lactate clearance as a predictor of mortality in trauma patients, in need of intensive care., Method: A total of 851 patients were admitted in ICU, in which 146 were victims of multiple trauma; due to the exclusion criteria, were included 117., Results: Patients were 87% male, mean age 32.4 years, motorcycle drivers, Glasgow coma scale between 3-8, affected by cranial trauma, followed by abdominal trauma. Was verified mortality up to 48 h and global mortality, that did not show statistical relationship between lactate clearance and mortality (p=0.928)., Conclusion: There is no correlation between admission lactate or lactate clearance and mortality in patients treated with multiple trauma.
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- 2015
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17. Clonal multidrug-resistant Corynebacterium striatum within a nosocomial environment, Rio de Janeiro, Brazil.
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Baio PV, Mota HF, Freitas AD, Gomes DL, Ramos JN, Sant'Anna LO, Souza MC, Camello TC, Hirata Junior R, Vieira VV, and Mattos-Guaraldi AL
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- Adult, Aged, 80 and over, Anti-Bacterial Agents pharmacology, Bacterial Typing Techniques, Brazil, Cloning, Molecular, Corynebacterium genetics, Corynebacterium Infections epidemiology, Cross Infection epidemiology, DNA, Bacterial genetics, Electrophoresis, Gel, Pulsed-Field, Female, Genotype, Humans, Male, Microbial Sensitivity Tests, Middle Aged, Phenotype, Young Adult, Corynebacterium drug effects, Corynebacterium Infections microbiology, Cross Infection microbiology, Disease Outbreaks, Drug Resistance, Multiple, Bacterial genetics
- Abstract
Corynebacterium striatum is a potentially pathogenic microorganism with the ability to produce outbreaks of nosocomial infections. Here, we document a nosocomial outbreak caused by multidrug-resistant (MDR) C. striatum in Rio de Janeiro, Brazil. C. striatum identification was confirmed by 16S rRNA and rpoB gene sequencing. Fifteen C. striatum strains were isolated from adults (half of whom were 50 years of age and older). C. striatum was mostly isolated in pure culture from tracheal aspirates of patients undergoing endotracheal intubation procedures. The analysis by pulsed-field gel electrophoresis (PFGE) indicated the presence of four PFGE profiles, including two related clones of MDR strains (PFGE I and II). The data demonstrated the predominance of PFGE type I, comprising 11 MDR isolates that were mostly isolated from intensive care units and surgical wards. A potential causal link between death and MDR C. striatum (PFGE types I and II) infection was observed in five cases.
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- 2013
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18. miR-21 regulates chronic hypoxia-induced pulmonary vascular remodeling.
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Yang S, Banerjee S, Freitas Ad, Cui H, Xie N, Abraham E, and Liu G
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- Airway Remodeling genetics, Animals, Apoptosis genetics, Bone Morphogenetic Protein Receptors, Type II genetics, Bone Morphogenetic Protein Receptors, Type II metabolism, Cell Cycle Proteins genetics, Cell Line, Cell Proliferation, Cyclin D1 genetics, Cyclin D1 metabolism, Down-Regulation genetics, Humans, Hypertension, Pulmonary etiology, Hypertension, Pulmonary genetics, Hypertension, Pulmonary metabolism, Hypertension, Pulmonary physiopathology, Hypertrophy, Right Ventricular genetics, Hypertrophy, Right Ventricular metabolism, Hypertrophy, Right Ventricular physiopathology, Hypoxia complications, Hypoxia genetics, Hypoxia metabolism, Lung metabolism, Matrix Attachment Region Binding Proteins genetics, Matrix Attachment Region Binding Proteins metabolism, Mice, Muscle, Smooth, Vascular metabolism, Myocytes, Smooth Muscle metabolism, Pulmonary Artery metabolism, Pulmonary Artery physiopathology, Ubiquitin-Protein Ligases genetics, Ubiquitin-Protein Ligases metabolism, Up-Regulation genetics, bcl-X Protein genetics, bcl-X Protein metabolism, Airway Remodeling physiology, Hypoxia physiopathology, Lung physiopathology, MicroRNAs genetics, Muscle, Smooth, Vascular physiopathology, Myocytes, Smooth Muscle pathology
- Abstract
Chronic hypoxia causes pulmonary vascular remodeling leading to pulmonary hypertension (PH) and right ventricle (RV) hypertrophy. Aberrant expression of microRNA (miRNA) is closely associated with a number of pathophysiologic processes. However, the role of miRNAs in chronic hypoxia-induced pulmonary vascular remodeling and PH has not been well characterized. In this study, we found increased expression of miR-21 in distal small arteries in the lungs of hypoxia-exposed mice. Putative miR-21 targets, including bone morphogenetic protein receptor (BMPR2), WWP1, SATB1, and YOD1, were downregulated in the lungs of hypoxia-exposed mice and in human pulmonary artery smooth muscle cells (PASMCs) overexpressing miR-21. We found that sequestration of miR-21, either before or after hypoxia exposure, diminished chronic hypoxia-induced PH and attenuated hypoxia-induced pulmonary vascular remodeling, likely through relieving the suppressed expression of miR-21 targets in the lungs of hypoxia-exposed mice. Overexpression of miR-21 enhanced, whereas downregulation of miR-21 diminished, the proliferation of human PASMCs in vitro and the expression of cell proliferation associated proteins, such as proliferating cell nuclear antigen, cyclin D1, and Bcl-xL. Our data suggest that miR-21 plays an important role in the pathogenesis of chronic hypoxia-induced pulmonary vascular remodeling and also suggest that miR-21 is a potential target for novel therapeutics to treat chronic hypoxia associated pulmonary diseases.
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- 2012
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19. Mycobacterium massiliense BRA100 strain recovered from postsurgical infections: resistance to high concentrations of glutaraldehyde and alternative solutions for high level disinfection.
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Lorena NS, Pitombo MB, Côrtes PB, Maya MC, Silva MG, Carvalho AC, Coelho FS, Miyazaki NH, Marques EA, Chebabo A, Freitas AD, Lupi O, and Duarte RS
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- Glutaral administration & dosage, Humans, Microbial Sensitivity Tests, Mycobacterium classification, Mycobacterium isolation & purification, Postoperative Complications microbiology, Aldehydes pharmacology, Disinfectants pharmacology, Drug Resistance, Bacterial drug effects, Glutaral pharmacology, Mycobacterium drug effects, Peracetic Acid pharmacology
- Abstract
Purpose: To evaluate the minimum inhibitory concentration (MIC) of GTA against these microorganisms and alternative disinfectants for high-level disinfection (HLD)., Methods: Reference mycobacteria and clinical M. massiliense strains were included in this study. Active cultures were submitted to susceptibility qualitative tests with GTA dilutions (ranging from 1.5% to 8%), and commercial orthophthaldehyde (OPA) and peracetic acid (PA)-based solutions, during the period of exposure as recommended by National Agency of Sanitary Surveillance for HLD., Results: All reference and M. massiliense non-BRA100 strains, recovered from sputum, were susceptible to any GTA concentration, OPA and PA solutions. M. massiliense BRA100 strains presented MIC of 8% GTA and were susceptible to OPA and PA., Conclusion: M. massiliense BRA100 strain is resistant to high GTA concentrations (up to 7%), which proves that this product is non-effective against specific rapidly growing mycobacteria and should be substituted by OPA or PA-based solutions for HLD.
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- 2010
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20. (15)N natural abundance of non-fixing woody species in the Brazilian dry forest (caatinga).
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de Freitas AD, de Sa Barretto Sampaio EV, Menezes RS, and Tiessen H
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- Brazil, Geography, Rain, Species Specificity, Wood classification, Wood growth & development, Ecosystem, Nitrogen metabolism, Nitrogen Isotopes metabolism, Trees, Water Supply analysis, Wood metabolism
- Abstract
Foliar delta(15)N values are useful to calculate N(2) fixation and N losses from ecosystems. However, a definite pattern among vegetation types is not recognised and few data are available for semi-arid areas. We sampled four sites in the Brazilian caatinga, along a water availability gradient. Sites with lower annual rainfall (700 mm) but more uniform distribution (six months) had delta(15)N values of 9.4 and 10.1 per thousand, among the highest already reported, and significantly greater than those (6.5 and 6.3 per thousand) of sites with higher rainfall (800 mm) but less uniform distribution (three months). There were no significant differences at each site among species or between non-fixing legume and non-legume species, in spite of the higher N content of the first group. Therefore, they constitute ideal reference plants in estimations of legume N(2) fixation. The higher values could result from higher losses of (15)N depleted gases or lower losses of enriched (15)N material.
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- 2010
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21. Case-crossover study of Burkholderia cepacia complex bloodstream infection associated with contaminated intravenous bromopride.
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Martins IS, Pellegrino FL, Freitas Ad, Santos Mda S, Ferraiuoli GI, Vasques MR, Amorim EL, Oliveira S, Nouér SA, Cardoso FL, Mascarenhas LA, Magalhães AC, Cleinman IB, Figueiredo AM, and Moreira BM
- Subjects
- Adult, Aged, Aged, 80 and over, Brazil epidemiology, Burkholderia Infections epidemiology, Burkholderia Infections microbiology, Cross Infection epidemiology, Cross Infection microbiology, Cross-Over Studies, Electrophoresis, Gel, Pulsed-Field, Female, Hospitals, Private statistics & numerical data, Hospitals, Public statistics & numerical data, Hospitals, University statistics & numerical data, Humans, Male, Metoclopramide administration & dosage, Middle Aged, Bacteremia epidemiology, Bacteremia microbiology, Burkholderia cepacia complex classification, Burkholderia cepacia complex genetics, Burkholderia cepacia complex isolation & purification, Disease Outbreaks, Equipment Contamination, Injections, Intravenous adverse effects, Metoclopramide analogs & derivatives
- Abstract
Objective: To investigate an outbreak of healthcare-associated Burkholderia cepacia complex (BCC) primary bloodstream infections (BCC-BSI)., Design and Setting: Case-crossover study in a public hospital, a university hospital and a private hospital in Rio de Janeiro, Brazil, from March 2006 to May 2006., Patients: Twenty-five patients with BCC-BSI., Design: After determining the date BCC-BSI symptoms started for each patient, 3 time intervals of data collection were defined, each one with a duration of 3 days: the case period, starting just before BCC-BSI symptoms onset; the control period, starting 6 days before BCC-BSI symptoms onset; and the washout period, comprising the 3 days between the case period and the control period. Exposures evaluated were intravascular solutions and invasive devices and procedures. Potential risk factors were identified by using the McNemar chi(2) adjusted test. Cultures of samples of potentially contaminated solutions were performed. BCC strain typing was performed by pulsed-field gel electrophoresis using SpeI., Results: The statistical analysis revealed that the use of bromopride and dipyrone was associated with BCC-BSI. A total of 21 clinical isolates from 17 (68%) of the 25 patients and an isolate obtained from the bromopride vial were available for strain typing. Six pulsotypes were detected. A predominant pulsotype (A) accounted for 11 isolates obtained from 11 patients (65%) in the 3 study hospitals., Conclusion: Our investigation, using a case-crossover design, of an outbreak of BCC-BSI infections concluded it was polyclonal but likely caused by infusion of contaminated bromopride. The epidemiological finding was validated by microbiological analysis. After recall of contaminated bromopride vials by the manufacturer, the outbreak was controlled.
- Published
- 2010
- Full Text
- View/download PDF
22. RIVER: Portuguese registry to monitor unnecessary right ventricular pacing.
- Author
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Sanfins V, Alves A, Rodrigues B, Chaves JC, Reis H, Lagarto V, Santos S, Nobre JA, Martins V, Santos I, Viscenju C, Madeira F, Morais C, Morujo N, Conceição J, Pedrosa P, Freitas AD, Caires G, Duarte LM, and Ruivo G
- Subjects
- Aged, Algorithms, Female, Humans, Male, Portugal, Prospective Studies, Registries, Cardiac Pacing, Artificial statistics & numerical data, Unnecessary Procedures statistics & numerical data
- Abstract
The aim of this prospective registry is to evaluate a new algorithm designed to reduce the percentage of unnecessary ventricular pacing (%VP) in patients implanted with a dual-chamber pacemaker, through a dedicated pacing mode (called AAISafeR2) operating in AAI mode with back-up ventricular pacing in DDD mode, and to describe the incidence and distribution of atrioventricular (AV) block in this population. Investigators were free to assign patients to AAISafeR2 mode or to standard DDD (if AAISafeR was contraindicated, mainly due to permanent high-degree AV block). Patients underwent routine follow-up visits at 3, 6, 12, 18 and 24 months after implantation. At each follow-up visit, data were retrieved from pacemaker memories and analyzed to extract %VP and incidence of AV block. Up to December 2006, 158 patients (94 men, mean age 69 +/- 14 years) from nine Portuguese centers had been consecutively included. We also determined the distribution of AV block (according to the criteria used by the pacemaker to classify AV block and switch to DDD mode). AAISafeR was shown to be effective in reducing unnecessary VP in our patient population. The analysis also reveals a high incidence of paroxysmal AV block, often unknown at the time of implantation. There were no complications associated with AAISafeR programming.
- Published
- 2010
23. Comparative study between trapezium resection and tendon interposition with and without ligamentplasty in the management of carpometacarpal arthrosis of the thumb.
- Author
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Pardini AG Jr, Freitas AD, Chaves AB, and Freitas MB
- Abstract
Purpose: Treating arthrosis in the base of the thumb has been a highly controverted subject. Many surgeries have been described, such as the isolated trapezium resection; resection with interposition with and without ligament plasty; arthrodesis, and arthroplasties. The purpose of this paper is to compare the two techniques which are currently the most used in this treatment., Methods: A prospective study has been made to compare the surgical results between the trapezium resection with tendon interposition (tenoarthroplasty) - 22 cases - and tenoarthroplasty associated to ligament plasty-24 cases. Objective evaluation was done by measuring opponence, movements of the metacarpophalangeal joint, pinch and grasp strength, radiographic measurement of the distance between the base of first metacarpal and the scaphoid, and measurement of the angle between the first and the second metacarpals. Subjective evaluation was done with a DASH questionnaire, visual analog scale to evaluate pain and patient satisfaction., Results and Conclusion: After application of the criteria described and using Student 't' tests for statistical analysis, the authors concluded that the ligament reconstruction has no advantage over the simple resection and tendon interposition in carpometacarpal arthrosis of the thumb.
- Published
- 2009
- Full Text
- View/download PDF
24. Agronomic effectiveness of biofertilizers with phosphate rock, sulphur and Acidithiobacillus for yam bean grown on a Brazilian tableland acidic soil.
- Author
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Stamford NP, Santos PR, Santos CE, Freitas AD, Dias SH, and Lira MA Jr
- Subjects
- Acids, Brazil, Crops, Agricultural, Nitrogen chemistry, Acidithiobacillus physiology, Fertilizers, Pachyrhizus growth & development, Phosphates chemistry, Soil, Sulfur chemistry
- Abstract
Phosphate rocks have low available P and soluble P fertilizers have been preferably used in plant crop production, although economic and effective P sources are needed. Experiments were carried out on a Brazilian Typic Fragiudult soil with low available P to evaluate the agronomic effectiveness of phosphate rock (PR) compared with soluble phosphate fertilizer. Yam bean (Pachyrhizus erosus) inoculated with rhizobia (strains NFB 747 and NFB 748) or not inoculated was the test crop. Biofertilizers were produced in field furrows by mixing phosphate rock (PR) and sulphur inoculated with Acidithiobacillus (S+Ac) in different rates (50, 100, 150 and 200 g S kg(-1) PR), with 60 days of incubation. Treatments were carried out with PR; biofertilizers B(50), B(100), B(150), B(200); triple super phosphate (TSP); B(200) without Acidithiobacillus and a control treatment without P application (P(0)). TSP and biofertilizers plus S inoculated with Acidithiobacillus increased plant growth. Soil acidity and available P increased when biofertilizers B(150) and B(200) were applied. We conclude that biofertilizers may be used as P source; however, long term use will reduce soil pH and potentially reduce crop growth.
- Published
- 2007
- Full Text
- View/download PDF
25. Effect of sulphur inoculated with Thiobacillus on soil salinity and growth of tropical tree legumes.
- Author
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Stamford NP, Silva AJ, Freitas AD, and Araújo Filho JT
- Subjects
- Brazil, Calcium Sulfate metabolism, Tropical Climate, Fabaceae growth & development, Sodium Chloride analysis, Soil analysis, Sulfur metabolism, Thiobacillus physiology, Trees growth & development
- Abstract
A greenhouse experiment was carried out with the objective of evaluating the effects of the elementary sulphur inoculated with Thiobacillus, compared with gypsum, in the amendment of a alluvial sodic saline soil from the Brazilian semiarid region, irrigated with saline water and grown with the tropical legumes leucena and mimosa. The treatments consisted of levels of sulphur (0; 300 and 600 kg/ha) and gypsum (1,200 and 2,400 kg/ha), irrigation using different waters containing the salts NaHCO3, MgCl2, CaCl2, NaCl and KCl, with different electrical conductivities (ECs: 0.2. 6.1 and 8.2 dS/m at 25 degrees C). Based on the results it appears that saline water increased exchangeable Na+, K+, Ca2+, Mg2+, and soil pH. Sulphur inoculated with Thiobacillus was more efficient than gypsum in the reduction of the exchangeable sodium of the soil and promoting leaching of salts, especially sodium. Sulphur inoculated with Thiobacillus reduced the EC of the soil saturation extract to levels below that adopted in soil classification of sodic or saline sodic. Leucena was more tolerant to salinity and mimosa more resistant to acidity promoted by sulphur inoculated with Thiobacillus.
- Published
- 2002
- Full Text
- View/download PDF
26. Mortality and morbidity trends in ischemic heart disease in the autonomous region of Madeira in the ten-year period 1987-1996.
- Author
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Cardoso AA, Pereira D, Freitas AD, Caires G, Araújo JJ, Teixeira F, Leite R, Pereira AC, de Macedo ME, and Diniz M
- Subjects
- Age Distribution, Aged, Female, Humans, Incidence, Male, Middle Aged, Portugal epidemiology, Time Factors, Myocardial Infarction complications, Myocardial Infarction mortality
- Abstract
The increase in absolute number of deaths from ischemic heart disease (IHD) in the population aged > or = 65 years, in both sexes, in Madeira, when comparing the years 1987 and 1996, led to significant increases in the corresponding standardized death rates that go against the stabilization seen at national level. Significant increases in these rates for the same years were also seen in the district of Beja and in the Azores. The aim of this study was to ascertain the trends for the incidence, morbidity and mortality from acute myocardial infarction (AMI) in patients admitted in Madeira and its contribution to the increase in these rates, particularly in the population aged < 65 years of both sexes, which the number of deaths from ischemic heart disease did not increase. We studied 119 pts with AMI admitted in 1987 (year A), of whom 53 were aged < 65 years, and 186 pts with AMI admitted in 1996 (year B), of whom 72 were aged < 65 years, whose data were included in the Madeira Ischemic Heart Disease Register (RECIMA), an IHD hospital register that covers 1792 patients admitted with AMI in the Coronary Intensive Care Unit of the Department of Medical and Surgical Cardiology of Funchal Hospital over a period of 15 years (1984-1998). Mortality by the 28th day (fatal AMI admissions) in all ages fell slightly in both sexes in the two years studied (A = 19.3%; B = 16.1%). The number of fatal AMI admissions rose among females in the two age groups considered A = 11; B = 20; delta% = +45) and fell among males (A = 12; B = 10; delta% = -20). In males aged > or = 65 years, this number remained the same (A = 7; B = 7) and fell in males aged > or = 65 years (A = 5; B = 3; delta% = -40). The number of pts who survived to the 28th day (non-fatal AMI admissions) rose in all age groups for both sexes (A = 96; B = 156; delta% = +38.46), as did the ratios with deaths from IHD. These increases were roughly double in the group of patients aged 65 years compared to patients aged < 65 years. We found highly significant positive correlations in the population aged < 65 years between the number of non-fatal AMI admissions (morbidity data) and the number of deaths from IHD (mortality data) recorded in every year of the 10-year period 1987-96, these values being highly significant in both sexes (r = 0.89; p < 0.0001), in males (r = 0.87; p < 0.0001) and in females (r = 0.77; p < 0.0001). Since our study was carried out on an island on which all AMI cases are admitted to a single treatment center, we can conclude that these positive correlations represent a trend towards worsening of morbidity and mortality from IHD in Madeira in the population aged < 65 years, even though the number of deaths from IHD did not rise. The establishment of IHD registers similar to RECIMA in other regions of the country would help to identify trends in morbidity, mortality, and morbidity plus mortality in this population that would be useful in improving the orientation of resources allocated to the prevention and treatment of cardiovascular diseases.
- Published
- 2001
27. Survival analysis within one year of first acute myocardial infarction: comparison between non-Q and Q wave myocardial infarction.
- Author
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Caires G, Pereira D, Freitas AD, Teixeira F, Leite R, Araújo JJ, Cardoso A, Pereira AC, Macedo ME, and Diniz M
- Subjects
- Aged, Electrocardiography, Female, Humans, Male, Middle Aged, Survival Analysis, Myocardial Infarction mortality, Myocardial Infarction physiopathology
- Abstract
Background: Non-Q wave Myocardial Infarction (non-Q AMI) is related pathophysiologically to Q wave AMI, as each represents different stages of plaque rupture and thrombosis. Post-hospital re-infarction and recurrent angina are more frequent in non-Q AMI than in Q wave AMI, offsetting the higher early risk with Q wave AMI, with one-year survival rates similar in the two types of MI., Objectives: 1--Evaluation of early (< or = 28 days) and one-year total mortality from first non-Q AMI in comparison to QMI. 2--Analysis of recurrent acute ischaemic events (non-fatal reinfarction and unstable angina) in both types of MI in the same periods of time., Population and Methods: A retrospective study of 1146 patients, mean age 65 +/- 13 years, 65% male, admitted at CCU with a first MI, from January 1988 to December 1997 (minimum follow-up period of one year, mean follow-up 42 +/- 37 months). We compared the baseline demographics and clinical characteristics (coronary risk factors, previous angina, MI evolution, recurrent cardiac events, 28 day mortality and one year mortality) of patients with non-Q AMI (NQ group = 239) and Q wave AMI (Q group = 907)., Results: The NQ group patients were significantly older (mean age: 67 +/- 12.6 vs 65 +/- 12.5 years; p < 0.05), included fewer smokers (29% vs 43%; p < 0.001) and were more symptomatic before the index infarction (stable angina: 40% vs 30%; p < 0.05; unstable angina: 16% vs 6%; p < 0.001), when compared to the Q group patients. There were no significant differences in MI evolution, in Killip-Kimbal class > or = 2, recurrent angina and in-hospital mortality (Q-12% vs NQ-9%; ns), although there was a higher combined risk of arrhythmias and AV conduction disturbances in patients with QMI (Q-34% vs NQ-26%; p < 0.05). The combined risk of unstable angina and reinfarction at one year was significantly higher in group NQ (NQ-13% vs Q-8.1%; p < 0.05). The NQ group showed no significant difference in 28 day total mortality (NQ-14% vs Q-17%; ns) or at one year follow-up (NQ-24% vs Q-26%; ns) when compared to the Q group., Conclusion: 1--Despite a lower severity of non-Q AMI in the acute phase, 28 day and one year total mortality were similar in the two groups. 2--Patients with non-Q AMI showed a higher incidence of recurrent ischemic events at one year follow-up.
- Published
- 2000
28. Thrombolytic therapy impact on prognosis after twelve months of first acute myocardial infarction.
- Author
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Caires G, Pereira D, Freitas AD, Teixeira F, Leite R, Araújo JJ, Cardoso A, Pereira AC, Macedo ME, and Diniz M
- Subjects
- Aged, Aspirin therapeutic use, Female, Fibrinolytic Agents therapeutic use, Follow-Up Studies, Heparin therapeutic use, Humans, Male, Multivariate Analysis, Myocardial Infarction drug therapy, Proportional Hazards Models, Retrospective Studies, Risk Factors, Time Factors, Myocardial Infarction mortality, Thrombolytic Therapy mortality
- Abstract
Introduction and Objectives: Thrombolytic therapy is still widely used to restore antegrade flow in the infarct related artery (IRA), with unquestionable benefits in mortality reduction of such patients. The aim of this study was to evaluate early (< or = 28 days) and one-year mortality of patients with a first Q wave myocardial infarction (Q AMI), comparing those who underwent thrombolytic therapy with those who did not., Population and Methods: A retrospective study was done on 907 patients (median age: 35 +/- 13 years, 66% male) admitted to a Coronary Unit with the diagnosis of first Q AMI, from January 1988 to December 1997, all in the same geographical area (minimum follow-up period of one year, mean follow-up 43 +/- 37 months). We compared demographics and clinical characteristics (coronary risk factors, previous history of angina, MI location and evolution, cardiac events, 28 day and one-year mortality) of patients who underwent thrombolysis (group T = 355) versus those who did not undergo reperfusion therapy (group NT = 552)., Results: Of these patients 39% underwent thrombolytic therapy. Group NT had a greater number of female patients (40% vs 25%; p < 0.001), a significantly higher mean age (67 +/- 12.2 vs 61 +/- 12; p < 0.001), and a higher percentage of diabetics (29% vs 19%; p < 0.001), in comparison to group T. The Q AMI developed into Killip class > or = 2 in 43% of patients in group NT and 23% in group T (p < 0.001). A higher number of AV block (NT-13% vs T-8%; p < 0.05) and higher in-hospital mortality (NT-14% vs T-9%; p < 0.05) was observed in patients not undergoing thrombolysis. The early (NT-22% vs T-12%; p < 0.001) and one-year (NT-33% vs T-16%; p < 0.001) mortalities were significantly higher in group NT than in group T, even after multivariate analysis., Conclusions: 1--Patients who did not undergo thrombolytic therapy initially had a profile of greater severity, and a higher early and one-year mortality rate. 2--Those who underwent thrombolytic therapy presented a significantly lower mortality, a benefit that was still observed after one year of follow-up and after multivariate correction.
- Published
- 2000
29. Prospective randomized double blind placebo-controlled evaluation of azithromycin for treatment of cat-scratch disease.
- Author
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Bass JW, Freitas BC, Freitas AD, Sisler CL, Chan DS, Vincent JM, Person DA, Claybaugh JR, Wittler RR, Weisse ME, Regnery RL, and Slater LN
- Subjects
- Adolescent, Adult, Child, Double-Blind Method, Female, Humans, Logistic Models, Lymph Nodes diagnostic imaging, Male, Middle Aged, Prospective Studies, Ultrasonography, Anti-Bacterial Agents therapeutic use, Azithromycin therapeutic use, Bartonella henselae, Cat-Scratch Disease drug therapy
- Abstract
Objective: To determine the efficacy of azithromycin in the treatment of patients with typical cat-scratch disease., Design: Prospective, randomized, double blind, placebo-controlled clinical trial., Setting: Large military medical center and its referring clinics., Patients: Active duty military members and their dependents with laboratory-confirmed, clinically typical cat-scratch disease., Intervention: Study participants assigned by randomization to treatment with oral azithromycin or placebo for 5 days., Outcome Measures: Lymph node volume was calculated using three dimensional ultrasonography at entry and at weekly intervals. The ultrasonographer was blinded to the treatment groups. Endpoint evaluations were predetermined as time in days to 80% resolution of the initial total lymph node volume., Results: Demographic and clinical data showed that the azithromycin and placebo treatment groups were comparable at entry although the placebo group tended to be older. Eighty percent decrease of initial lymph node volume was documented in 7 of 14 azithromycin-treated patients compared with 1 of 15 placebo-treated controls during the first 30 days of observation (P = 0.026). After 30 days there was no significant difference in rate or degree of resolution between the two groups., Conclusions: Treatment of patients with typical cat-scratch disease with oral azithromycin for five days affords significant clinical benefit as measured by total decrease in lymph node volume within the first month of treatment.
- Published
- 1998
- Full Text
- View/download PDF
30. [Assessment of the first myocardial infarctions with lead ECG --implications in the study of hospital mortality and its reduction using thrombolytic drugs].
- Author
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Pereira D, de Freitas AD, Caires A, Sousa A, Freitas A, Pereira E, Silva JA, Araújo JJ, de Sousa S, and Cardoso AA
- Subjects
- Aged, Female, Hospitalization, Humans, Male, Middle Aged, Myocardial Infarction drug therapy, Myocardial Infarction pathology, Necrosis, Retrospective Studies, Electrocardiography methods, Myocardial Infarction diagnosis, Myocardial Infarction mortality, Thrombolytic Therapy
- Abstract
Study Objective: Correlation between mortality reduction of first Myocardial Infarction (MI) by thrombolytic therapy and MI size evaluated with the classical Electrocardiogram (ECG)., Design: A retrospective sequential study., Setting: Coronary Unit patients., Patients: Sequential sample of 132 patients with first MI obeying all the following criteria: 1) no previous MI; 2) age less than or equal to 70 years; 3) clinical evolution less than 12 hours; 4) no Left Bundle Branch Block in the CCU first ECG; 5) ischemic ST elevation in greater than or equal to 1 initial ECG leads. Patients were divided into Group A, with less than or equal to 3 initial ECG leads with ischemic ST elevation (n = 80), and Group B, with greater than or equal to 4 initial ECG leads with ischemic ST elevation (n = 52). Only 34 patients (25.7%) did thrombolytic therapy with IV Streptokinase (SK); 15 from Group A and 19 from Group B., Measurements and Main Results: 17 patients died in MI acute phase (12.8%); 4 in Group A (5%) and 13 in Group B (24.9%). Inhospital mortality was statistically worst in Group B than in Group A (24.9% vs 5% with p less than 0.01). Creatin kinase (CK) maximal values (A = 911.5 UI; B = 1444.6 UI with p less than 0.01) and initial Heart Rate (A = 75.7; B = 86.7 with p less than 0.001) were also statistically greatest in Group B. Inhospital mortality was smaller in patients treated with SK (8.8% vs 14.3%), as in Group B (10.5% vs. 33.3%), both without statistical significance., Conclusions: Inhospital mortality and thrombolytic therapy benefit were so bigger as MI size evaluated by the number of initial ECG leads with ischemic ST elevation, by initial HR and maximal values of CK. Classical ECG can be useful by identifying patients with first MI that can more benefit with thrombolytic therapy (greater than or equal to 4 leads with ischemic ST elevation).
- Published
- 1991
31. [Prognostic significance of angina pectoris before myocardial infarction].
- Author
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Caires AA, Pereira D, de Freitas AD, Araújo JJ, Cardoso AA, and Diniz M
- Subjects
- Aged, Angina Pectoris physiopathology, Exercise Test, Female, Humans, Male, Middle Aged, Prognosis, Time Factors, Angina Pectoris etiology, Myocardial Infarction complications
- Abstract
The AA analysed the incidence of previous angina to myocardial infarction (PA) (42.3%) and post myocardial infarction angina (PMIA) (46.39%) in 97 patients that survived the acute phase of myocardial infarction, all discharged from the CCU of the Funchal's Hospital Center Cardiological Department (Madeira Island), whose 25 of them (26.8%) presented both. They met 14 positive Treadmill tests in the 30 patients that were submitted to sub-maximal protocols. They concluded that the presence of PA and positive treadmill tests can identify a patient group with increased risk of PMIA, suggesting that patients with PA have also an increased isquemic risk.
- Published
- 1990
32. [Coronary transluminal angioplasty and determination of the intracoronary gradient with a new monorail system].
- Author
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Freitas AD, Medina A, Bethencourt A, Coello I, Hernández E, Peraza C, Melian F, Jiménez F, Laraudogoitia E, and Goicolea J
- Subjects
- Aged, Catheterization instrumentation, Coronary Disease physiopathology, Female, Humans, Male, Middle Aged, Retrospective Studies, Angioplasty, Balloon instrumentation, Coronary Disease therapy
- Abstract
Study Objective: To evaluate the results obtained in coronary angioplasty using the new very low profile monorail catheter., Design: A retrospective study to define the causes and frequency of successful and unsuccessful coronary angioplasty on proximal and distal lesions located in the three coronary vessels., Setting: Patients referred to the Hemodynamic Unit for coronary angioplasty., Patients: Coronary angioplasty was performed in 106 patients with cardiac ischemic disease (stable angina, unstable angina and myocardial infarction after thrombolytic therapy)., Interventions: To perform coronary angioplasty using a monorail system, including dilatation of vessels (angioplasty) and to measure the intracoronary gradient., Results: A high success rate was achieved (92%) independent of vessel dilated or of the position of the stenosis. There was a lower success rate in complex lesions., Conclusion: In this study, this newly modified system for coronary angioplasty with balloon catheter and monorail pressure catheter gave a very high performance.
- Published
- 1989
33. [Risk and follow-up after myocardial infarct at a peripheral hospital].
- Author
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Cardosp AA, Caires AA, Pereira D, de Freitas AD, de Sousa A, de Sousa S, Silva JA, Araújo JJ, Diniz M, and Mendonça MI
- Subjects
- Aged, Ambulatory Care, Atrial Fibrillation mortality, Hospitals, Humans, Middle Aged, Myocardial Infarction complications, Prognosis, Prospective Studies, Retrospective Studies, Risk Factors, Time Factors, Myocardial Infarction mortality
- Abstract
Aim: Analysing the influence of clinical and paraclinical "markers" in long term prognosis (LTP) of Acute Myocardial Infarction (AMI), in terms of mortality, post AMI Angina, post AMI Heart Failure and non fatal recurrent AMI in patients of a Post AMI Consultation of a peripherical hospital., Design: A) Retrospective study (series A and B) of the average incidence of 17 "markers" of bad post AMI TLP so as to identify those that had a discriminating value with regards to death after hospital discharge. B) Prospective study so as to determine its influence in those patients followed in a post AMI Consultation (series C), with regards to mortality, post AMI Angina, post AMI Heart Failure and non fatal recurrent AMI., Participants: Series A - 97 survivors of AMI treated on the CCU of Madeira's Hospital Center in its 1st year. Series B - 91 survivors of AMI treated of AMI treated on the CCU of Madeira's Hospital Center in its 2nd year. Series C - 88 survivors of AMI treated on the CCU of Madeira's Hospital Center after this period and followed up since then at the post AMI consultation., Results: A) Significant statistical differences were observed in the series A and B, with regards to late mortality, in 5 of those "markers" (aged greater than or equal to 70 years, Auricular Fibrillation and Killip III class during the acute phase of the AMI, frequent ectopic ventricular beats before discharge and a survival probability of less than or equal to 60% at 5 years after AMI). B) It was observed that bearers of greater than or equal to 1 of these 5 clinical "markers" of the series C had significant statistical differences in relation to non bearers with regards to mortality, post AMI Angina, post AMI Heart Failure and non fatal recurrent AMI., Conclusions: It is considered that those 5 post AMI clinical "markers" allows identification of the very bad cases of post AMI LTP in peripherical hospitals. This identification can lower the ratio cost benefit of the indispensable diagnostic techniques for stratification of post AMI risk, through the rationalization of its use. A Study of its accessibility with regards to peripherical hospitals and a AMI national register became important to evaluate the problem of the Portuguese AMI survivors in terms of Public Health.
- Published
- 1989
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