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1.
Emerg Med J ; 36(8): 485-492, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31239315

RESUMO

OBJECTIVES: To determine whether the impact of a thoracic CT scan on community-acquired pneumonia (CAP) diagnosis and patient management varies according to emergency physician's experience (≤10 vs >10 years). METHODS: Early thoracic CT Scan for Community-Acquired Pneumonia at the Emergency Department is an interventional study conducted from November 2011 to January 2013 in four French emergency departments, and included suspected patients with CAP. We analysed changes in emergency physician CAP diagnosis classification levels before and after CT scan; and their agreement with an adjudication committee. We performed univariate analysis to determine the factors associated with modifying the diagnosis classification level to be consistent with the radiologist's CT scan interpretation. RESULTS: 319 suspected patients with CAP and 136 emergency physicians (75% less experienced with ≤10 years, 25% with >10 years of experience) were included. The percentage of patients whose classification was modified to become consistent with CT scan radiologist's interpretation was higher among less-experienced than experienced emergency physicians (54.2% vs 40.2%; p=0.02). In univariate analysis, less emergency physician experience was the only factor associated with changing a classification to be consistent with the CT scan radiologist's interpretation (OR 1.77, 95% CI 1.01 to 3.10, p=0.04). After CT scan, the agreement between emergency physicians and adjudication committee was moderate for less-experienced emergency physicians and slight for experienced emergency physicians (k=0.457 and k=0.196, respectively). After CT scan, less-experienced emergency physicians modified patient management significantly more than experienced emergency physicians (36.1% vs 21.7%, p=0.01). CONCLUSIONS: In clinical practice, less-experienced emergency physicians were more likely to accurately modify their CAP diagnosis and patient management based on thoracic CT scan than more experienced emergency physicians. TRIAL REGISTRATION NUMBER: NCT01574066.


Assuntos
Competência Clínica/normas , Infecções Comunitárias Adquiridas/terapia , Medicina de Emergência/normas , Acontecimentos que Mudam a Vida , Adulto , Competência Clínica/estatística & dados numéricos , Infecções Comunitárias Adquiridas/complicações , Tomada de Decisões , Medicina de Emergência/métodos , Medicina de Emergência/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonia/complicações , Pneumonia/terapia , Estudos Prospectivos , Estatísticas não Paramétricas , Fatores de Tempo , Tomografia Computadorizada por Raios X/métodos , Tomografia Computadorizada por Raios X/normas , Tomografia Computadorizada por Raios X/estatística & dados numéricos
2.
Am J Respir Crit Care Med ; 192(8): 974-82, 2015 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-26168322

RESUMO

RATIONALE: Clinical decision making relative to community-acquired pneumonia (CAP) diagnosis is difficult. Chest radiograph is key in establishing parenchymal lung involvement. However, radiologic performance may lead to misdiagnosis, rendering questionable the use of chest computed tomography (CT) scan in patients with clinically suspected CAP. OBJECTIVES: To assess whether early multidetector chest CT scan affects diagnosis and management of patients visiting the emergency department with suspected CAP. METHODS: A total of 319 prospectively enrolled patients with clinically suspected CAP underwent multidetector chest CT scan within 4 hours. CAP diagnosis probability (definite, probable, possible, or excluded) and therapeutic plans (antibiotic initiation/discontinuation, hospitalization/discharge) were established by emergency physicians before and after CT scan results. The adjudication committee established the final CAP classification on Day 28. MEASUREMENTS AND MAIN RESULTS: Chest radiograph revealed a parenchymal infiltrate in 188 patients. CAP was initially classified as definite in 143 patients (44.8%), probable or possible in 172 (53.8%), and excluded in 4 (1.2%). CT scan revealed a parenchymal infiltrate in 40 (33%) of the patients without infiltrate on chest radiograph and excluded CAP in 56 (29.8%) of the 188 with parenchymal infiltrate on radiograph. CT scan modified classification in 187 (58.6%; 95% confidence interval, 53.2-64.0), leading to 50.8% definite CAP and 28.8% excluded CAP, and 80% of modifications were in accordance with adjudication committee classification. Because of CT scan, antibiotics were initiated in 51 (16%) and discontinued in 29 (9%), and hospitalization was decided in 22 and discharge in 23. CONCLUSIONS: In CAP-suspected patients visiting the emergency unit, early CT scan findings complementary to chest radiograph markedly affect both diagnosis and clinical management. Clinical trial registered with www.clinicaltrials.gov (NCT 01574066).


Assuntos
Infecções Comunitárias Adquiridas/diagnóstico por imagem , Serviço Hospitalar de Emergência , Pulmão/diagnóstico por imagem , Tomografia Computadorizada Multidetectores , Pneumonia/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial/estatística & dados numéricos , Antibacterianos/uso terapêutico , Tomada de Decisão Clínica , Estudos de Coortes , Infecções Comunitárias Adquiridas/diagnóstico , Infecções Comunitárias Adquiridas/tratamento farmacológico , Gerenciamento Clínico , Diagnóstico Precoce , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonia/diagnóstico , Pneumonia/tratamento farmacológico , Estudos Prospectivos , Radiografia Torácica
3.
Clin Infect Dis ; 59(3): 435-45, 2014 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-24759827

RESUMO

BACKGROUND: Shortening the interval between antituberculosis treatment onset and initiation of antiretroviral therapy (ART) reduces mortality in severely immunocompromised human immunodeficiency virus (HIV)-infected patients with tuberculosis. A better understanding of causes and determinants of death may lead to new strategies to further enhance survival. METHODS: We assessed mortality rates, causes of death, and factors of mortality in Cambodian HIV-infected adults with CD4 count ≤200 cells/µL and tuberculosis, randomized to initiate ART either 2 weeks (early ART) or 8 weeks (late ART) after tuberculosis treatment onset in the CAMELIA clinical trial. RESULTS: Six hundred sixty-one patients enrolled contributed to 1366.1 person-years of follow-up; 149 (22.5%) died. There were 8.3 deaths per 100 person-years (95% confidence interval [CI], 6.4-10.7) in the early-ART group and 13.8 deaths per 100 person-years (95% CI, 11.2-16.9) in the late-ART group (P = .002). Tuberculosis was the primary cause of death (28%), followed by other HIV-associated conditions (19%). Factors independently associated with mortality in the first 26 weeks were the age, body mass index, hemoglobin, interrupted or ineffective tuberculosis treatment before identification of drug resistance, disseminated tuberculosis, and nontuberculous mycobacterial disease. After 50 weeks in the trial, the most frequent causes of death were non-HIV related or tuberculosis related, including drug toxicity; factors associated with mortality were late ART, loss to follow-up, and absence of cotrimoxazole prophylaxis. CONCLUSIONS: Despite ART introduction, mortality remained high, with tuberculosis as the leading cause of death. Reducing tuberculosis-related mortality remains a challenge in resource-limited settings and requires innovative strategies. Clinical Trials Registration. NCT00226434.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Antituberculosos/uso terapêutico , Infecções por HIV/mortalidade , Tuberculose/mortalidade , Adulto , Anti-Infecciosos/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Seguimentos , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Humanos , Hospedeiro Imunocomprometido , Masculino , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico , Tuberculose/complicações , Tuberculose/tratamento farmacológico
4.
BMC Infect Dis ; 13: 97, 2013 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-23432906

RESUMO

BACKGROUND: Few data exist on viral and bacterial etiology of acute lower respiratory infections (ALRI) in ≥ 5 year -old persons in the tropics. METHODS: We conducted active surveillance of community-acquired ALRI in two hospitals in Cambodia, a low-income tropical country. Patients were tested for acid-fast bacilli (AFB) by direct sputum examination, other bacteria by blood and/or sputum cultures, and respiratory viruses using molecular techniques on nasopharyngeal/throat swabs. Pulmonologists reviewed clinical/laboratory data and interpreted chest X-rays (CXR) to confirm ALRI. RESULTS: Between April 2007 - December 2009, 1,904 patients aged ≥5 years were admitted with acute pneumonia (50.4%), lung sequelae-associated ALRI (24.3%), isolated pleural effusions (8.9%) or normal CXR-related ALRI (17.1%); 61 (3.2%) died during hospitalization. The two former diagnoses were predominantly due to bacterial etiologies while viral detection was more frequent in the two latter diagnoses. AFB-positive accounted for 25.6% of acute pneumonia. Of the positive cultures (16.8%), abscess-prone Gram-negative bacteria (39.6%) and Haemophilus influenzae (38.0%) were most frequent, followed by Streptococcus pneumoniae (17.7%). Of the identified viruses, the three most common viruses included rhinoviruses (49.5%), respiratory syncytial virus (17.7%) and influenza viruses (12.1%) regardless of the diagnostic groups. Wheezing was associated with viral identification (31.9% vs. 13.8%, p < 0.001) independent of age and time-to-admission. CONCLUSIONS: High frequency of H. influenzae and S. pneumoniae infections support the need for introduction of the respective vaccines in the national immunization program. Tuberculosis was frequent in patients with acute pneumonia, requiring further investigation. The relationship between respiratory viruses and wheezing merits further studies.


Assuntos
Infecções Comunitárias Adquiridas/epidemiologia , Infecções Respiratórias/epidemiologia , Adolescente , Adulto , Fatores Etários , Análise de Variância , Camboja/epidemiologia , Criança , Pré-Escolar , Infecções Comunitárias Adquiridas/microbiologia , Infecções Comunitárias Adquiridas/patologia , Infecções Comunitárias Adquiridas/virologia , Feminino , Haemophilus influenzae/isolamento & purificação , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Infecções Respiratórias/microbiologia , Infecções Respiratórias/patologia , Infecções Respiratórias/virologia , Fatores de Risco , Estatísticas não Paramétricas , Streptococcus pneumoniae/isolamento & purificação , Vírus/isolamento & purificação
5.
BMC Infect Dis ; 12: 3, 2012 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-22233322

RESUMO

BACKGROUND: In many Asian countries, Klebsiella pneumoniae (KP) is the second pathogen responsible for community-acquired pneumonia. Yet, very little is known about KP etiology in ALRI in Cambodia, a country that has one of the weakest medical infrastructures in the region. We present here the first clinico-radiological description of KP community-acquired ALRI in hospitalized Cambodian patients. METHODS: Through ALRI surveillance in two provincial hospitals, KP was isolated from sputum and blood cultures, and identified by API20E gallery from patients ≥ 5 years-old with fever and respiratory symptoms onset ≤14 days. Antibiotics susceptibility testing was provided systematically to clinicians when bacteria were isolated. We collected patients' clinical, radiological and microbiological data and their outcome 3 months after discharge. We also compared KP-related with other bacteria-related ALRI to determine risk factors for KP infection. RESULTS: From April 2007 to December 2009, 2315 ALRI patients ≥ 5 years-old were enrolled including 587 whose bacterial etiology could be assigned. Of these, 47 (8.0%) had KP infection; their median age was 55 years and 68.1% were females. Reported prior medication was high (42.5%). Patients' chest radiographs showed pneumonia (61.3% including 39% that were necrotizing), preexisting parenchyma lesions (29.5%) and pleural effusions alone (4.5%) and normal parenchyma (4.5%). Five patients had severe conditions on admission and one patient died during hospitalization. Of the 39 patients that were hospital discharged, 14 died including 12 within 1 month after discharge. Only 13 patients (28%) received an appropriate antibiotherapy. Extended-spectrum beta-lactamases (ESBL) - producing strains were found in 8 (17.0%) patients. Female gender (Odds ratio (OR) 2.1; p = 0.04) and diabetes mellitus (OR 3.1; p = 0.03) were independent risk factors for KP-related ALRI. CONCLUSIONS: KP ALRI in Cambodia has high fatality rate, are more frequently found in women, and should be considered in diabetic patients. The extremely high frequency of ESBL-producing strains in the study is alarming in the context of uncontrolled antibiotic consumption and in absence of microbiology capacity in most public-sector hospitals.


Assuntos
Broncopneumonia/epidemiologia , Infecções Comunitárias Adquiridas/epidemiologia , Infecções por Klebsiella/epidemiologia , Klebsiella pneumoniae/isolamento & purificação , Adulto , Idoso , Antibacterianos/farmacologia , Sangue/microbiologia , Broncopneumonia/microbiologia , Broncopneumonia/mortalidade , Broncopneumonia/patologia , Camboja/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Infecções Comunitárias Adquiridas/mortalidade , Infecções Comunitárias Adquiridas/patologia , Feminino , Humanos , Infecções por Klebsiella/microbiologia , Infecções por Klebsiella/mortalidade , Infecções por Klebsiella/patologia , Klebsiella pneumoniae/efeitos dos fármacos , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Fatores de Risco , Escarro/microbiologia , Análise de Sobrevida , beta-Lactamases/metabolismo
6.
Respiration ; 83(2): 106-14, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22025193

RESUMO

BACKGROUND: The severity of hemoptysis is usually assessed on the amount of blood expectorated, although no threshold has been agreed upon. Respiratory or hemodynamic failures are additional severity criteria but occur in few cases. OBJECTIVES: Early identification of the in-hospital mortality determinants might be helpful to best characterize severe hemoptysis. METHODS: This is a retrospective cohort study of consecutive patients with hemoptysis admitted to the ICU of a teaching hospital during a 14-year period. The model for early prediction of in-hospital mortality was developed on a derivation sample (67% of patients) using multiple logistic regression. Calibration and discrimination of the model were tested using the remaining validation sample. A scoring system was developed for clinical use. RESULTS: The in-hospital mortality of the 1,087 patients (age 54 years, 71% male) was 6.5% (95% CI 5-8). Chronic alcoholism, cancer or aspergillosis, pulmonary artery involvement, infiltrates involving two quadrants or more on the admission radiograph, and mechanical ventilation at referral predicted independently mortality. The model showed good concordance between predicted and observed probabilities of death and good discrimination (receiver operating characteristic curve area 0.87; 95% CI 0.82-0.92). The model-based score (chronic alcoholism, pulmonary artery involvement, and radiographic patterns, 1 point each; cancer, aspergillosis, and mechanical ventilation, 2 points each) predicted the probability of death as follows: score 0, 1%; score 1, 2%; score 2, 6%; score 3, 16%; score 4, 34%; score 5, 58%; score 6, 79%, and score 7, 91%. CONCLUSIONS: Our results provide useful information about the short-term prognosis of patients with hemoptysis, which could help design therapeutic approaches and management plans according to the risk of in-hospital mortality.


Assuntos
Hemoptise/mortalidade , Mortalidade Hospitalar , Índice de Gravidade de Doença , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Hemoptise/classificação , Hemoptise/complicações , Hemoptise/diagnóstico , Humanos , Unidades de Terapia Intensiva , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco
7.
BMC Infect Dis ; 11: 126, 2011 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-21569563

RESUMO

BACKGROUND: Melioidosis is a disease caused by Burkholderia pseudomallei and considered endemic in South-East Asia but remains poorly documented in Cambodia. We report the first series of hospitalized pulmonary melioidosis cases identified in Cambodia describing clinical characteristics and outcomes. METHODS: We characterized cases of acute lower respiratory infections (ALRI) that were identified through surveillance in two provincial hospitals. Severity was defined by systolic blood pressure, cardiac frequency, respiratory rate, oxygen saturation and body temperature. B. pseudomallei was detected in sputum or blood cultures and confirmed by API20NE gallery. We followed up these cases between 6 months and 2 years after hospital discharge to assess the cost-of-illness and long-term outcome. RESULTS: During April 2007 - January 2010, 39 ALRI cases had melioidosis, of which three aged ≤2 years; the median age was 46 years and 56.4% were males. A close contact with soil and water was identified in 30 patients (76.9%). Pneumonia was the main radiological feature (82.3%). Eleven patients were severe cases. Twenty-four (61.5%) patients died including 13 who died within 61 days after discharge. Of the deceased, 23 did not receive any antibiotics effective against B. pseudomallei. Effective drugs that were available did not include ceftazidime. Mean total illness-related costs was of US$65 (range $25-$5000). Almost two-thirds (61.5%) incurred debt and 28.2% sold land or other belongings to pay illness-related costs. CONCLUSIONS: The observed high fatality rate is likely explained by the lack or limited access to efficient antibiotics and under-recognition of the disease among clinicians, which led to inappropriate therapy.


Assuntos
Melioidose/epidemiologia , Pneumonia Bacteriana/epidemiologia , Adolescente , Adulto , Idoso , Antibacterianos/economia , Antibacterianos/uso terapêutico , Burkholderia pseudomallei , Camboja/epidemiologia , Criança , Pré-Escolar , Efeitos Psicossociais da Doença , Feminino , Seguimentos , Humanos , Masculino , Melioidose/tratamento farmacológico , Melioidose/economia , Melioidose/microbiologia , Pessoa de Meia-Idade , Pneumonia Bacteriana/tratamento farmacológico , Pneumonia Bacteriana/economia , Pneumonia Bacteriana/microbiologia , Estudos Prospectivos , Adulto Jovem
8.
Rev Prat ; 61(8): 1090-4, 2011 Oct.
Artigo em Francês | MEDLINE | ID: mdl-22135974

RESUMO

The favorable pneumonia outcome with antibiotics according to the recommendations is defined by improving clinical symptoms in 48-72 hours followed by their normalization within less than 10 days. This is different to stop progression of radiological abnormalities that can be delayed for 48-72 hours and moreover to radiological normalization which may require 4 to 8 weeks. The non favorable outcome, 48-72 hours after a first line of antibiotic therapy results in the vast majority of cases, from an infection: the pneumonia is not or poorly treated. The non favorable outcome 5-6 days after two successive lines of antibiotic therapy may also result from a non infectious cause: immunologic, toxic or tumoral pneumonitis. Practitioner dilemna is not to worry too early (slow-resolving pneumonia with clinical cure in normal time but slow radiological resolution) or too late (non-resolving pneumonia with no clinical cure and persistence or radiological extension).


Assuntos
Antibacterianos/uso terapêutico , Farmacorresistência Bacteriana , Pneumonia/tratamento farmacológico , Humanos
9.
Respiration ; 80(4): 313-20, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20501984

RESUMO

BACKGROUND: Diffuse alveolar haemorrhage (DAH) is a life-threatening condition due to immune and non-immune causes. Early identification of an underlying immune disorder is essential in order to initiate appropriate treatment. OBJECTIVE: The purpose of this study was to identify early predictive factors of an immune cause of DAH. METHODS: We conducted a retrospective study of 76 immunocompetent patients with DAH to identify early predictive factors of immune-related DAH using clinical, radiological and routine biological data available in the first 24 h after hospital admission. RESULTS: Multivariate analysis identified 4 parameters which were independently associated with immune-related DAH: (1) onset of first respiratory symptoms ≥11 days, (2) fatigue and/or weight loss during the month prior to presentation, (3) arthralgias or arthritis and (4) proteinuria ≥1 g/l. A simplified scale was constructed using these variables, with an area under the receiver operating characteristic curve of 0.913, for the diagnosis of immune-related DAH. CONCLUSIONS: A simple diagnostic scale can be used to identify an immune-related cause of DAH in immunocompetent patients and may help guide treatment decisions such as initiation of steroid therapy on the day of admission.


Assuntos
Hemorragia/imunologia , Pneumopatias/imunologia , Adulto , Idoso , Algoritmos , Feminino , Hemorragia/diagnóstico , Humanos , Imunocompetência , Pneumopatias/diagnóstico , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Retrospectivos
10.
Trans R Soc Trop Med Hyg ; 112(2): 57-63, 2018 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-29579302

RESUMO

Background: In Western settings, community-acquired pneumonia (CAP) due to Gram-negative bacilli (GNB) is relatively rare. Previous studies from Asia, however, indicate a higher prevalence of GNB in CAP, but data, particularly from Southeast Asia, are limited. Methods: This is a prospective observational study of 1451 patients ≥15 y of age with CAP from two hospitals in Cambodia between 2007 and 2010. The proportion of GNB was estimated. Risk factors and clinical characteristics of CAP due to GNB were assessed using logistic regression models. Results: The prevalence of GNB was 8.6% in all CAP patients and 15.8% among those with a valid respiratory sample. GNB infection was independently associated with diabetes, higher leucocyte count and CAP severity. Mortality was higher in patients with CAP due to GNB. Conclusions: We found a high proportion of GNB in a population hospitalized for CAP in Cambodia. Given the complex antimicrobial sensitivity patterns of certain GNBs and the rapid emergence of multidrug-resistant GNB, microbiological laboratory capacity should be strengthened and prospective clinical trials comparing empiric treatment algorithms according to the severity of CAP are needed.


Assuntos
Infecções Comunitárias Adquiridas/epidemiologia , Infecções por Bactérias Gram-Negativas/epidemiologia , Pneumonia Bacteriana/epidemiologia , Adulto , Idoso , Antibacterianos/uso terapêutico , Camboja/epidemiologia , Infecções Comunitárias Adquiridas/tratamento farmacológico , Farmacorresistência Bacteriana , Feminino , Bactérias Gram-Negativas/isolamento & purificação , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Pneumonia Bacteriana/tratamento farmacológico , Estudos Prospectivos , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
11.
Am J Trop Med Hyg ; 98(3): 791-796, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29313476

RESUMO

Childhood vaccination with the 13-valent pneumococcal conjugate vaccine (PCV13) was introduced in Cambodia in January 2015. Baseline data regarding circulating serotypes are scarce. All microbiology laboratories in Cambodia were contacted for identification of stored isolates of Streptococcus pneumoniae from clinical specimens taken before the introduction of PCV13. Available isolates were serotyped using a multiplex polymerase chain reaction method. Among 166 identified isolates available for serotyping from patients with pneumococcal disease, 4% were isolated from upper respiratory samples and 80% were from lower respiratory samples, and 16% were invasive isolates. PCV13 serotypes accounted for 60% (95% confidence interval [CI] 52-67) of all isolates; 56% (95% CI 48-64) of noninvasive and 77% (95% CI 57-89) of invasive isolates. Antibiotic resistance was more common among PCV13 serotypes. This study of clinical S. pneumoniae isolates supports the potential for high reduction in pneumococcal disease burden and may serve as baseline data for future monitoring of S. pneumoniae serotypes circulation after implementation of PCV13 childhood vaccination in Cambodia.


Assuntos
Pneumonia Pneumocócica/epidemiologia , Pneumonia Pneumocócica/microbiologia , Sorogrupo , Streptococcus pneumoniae/classificação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/farmacologia , Técnicas de Tipagem Bacteriana , Líquido da Lavagem Broncoalveolar/microbiologia , Camboja/epidemiologia , Criança , Pré-Escolar , Farmacorresistência Bacteriana Múltipla , Feminino , Humanos , Lactente , Laboratórios Hospitalares , Masculino , Vacinação em Massa , Pessoa de Meia-Idade , Vacinas Pneumocócicas , Pneumonia Pneumocócica/imunologia , Pneumonia Pneumocócica/prevenção & controle , Escarro/microbiologia , Streptococcus pneumoniae/efeitos dos fármacos , Streptococcus pneumoniae/imunologia , Streptococcus pneumoniae/isolamento & purificação , Vacinas Conjugadas
12.
Respir Res ; 8: 11, 2007 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-17302979

RESUMO

BACKGROUND: Limited data are available concerning patients admitted to the intensive care unit (ICU) for severe haemoptysis. We reviewed a large series of patients managed in a uniform way to describe the clinical spectrum and outcome of haemoptysis in this setting, and better define the indications for bronchial artery embolisation (BAE). METHODS: A retrospective chart review of 196 patients referred for severe haemoptysis to a respiratory intermediate care ward and ICU between January 1999 and December 2001. A follow-up by telephone interview or a visit. RESULTS: Patients (148 males) were aged 51 (+/- sd, 16) years, with a median cumulated amount of bleeding averaging 200 ml on admission. Bronchiectasis, lung cancer, tuberculosis and mycetoma were the main underlying causes. In 21 patients (11%), no cause was identified. A first-line bronchial arteriography was attempted in 147 patients (75%), whereas 46 (23%) received conservative treatment. Patients who underwent BAE had a higher respiratory rate, greater amount of bleeding, persistent bloody sputum and/or evidence of active bleeding on fiberoptic bronchoscopy. When completed (n = 131/147), BAE controlled haemoptysis in 80% of patients, both in the short and long (> 30 days) terms. Surgery was mostly performed when bronchial arteriography had failed and/or bleeding recurred early after completed BAE. Bleeding was controlled by conservative measures alone in 44 patients. The ICU mortality rate was low (4%). CONCLUSION: Patients with evidence of more severe or persistent haemoptysis were more likely to receive BAE rather than conservative management. The procedure was effective and safe in most patients with severe haemoptysis, and surgery was mostly reserved to failure of arteriography and/or early recurrences after BAE.


Assuntos
Cuidados Críticos/métodos , Hemoptise/diagnóstico , Hemoptise/terapia , Angiografia , Artérias Brônquicas/diagnóstico por imagem , Artérias Brônquicas/cirurgia , Embolização Terapêutica/métodos , Seguimentos , França , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta , Estudos Retrospectivos , Resultado do Tratamento
13.
Lung Cancer ; 51(1): 1-11, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16300854

RESUMO

HIV infection predisposes patients to AIDS-defining malignancies, some of which, such as Kaposi's sarcoma and non-Hodgkin lymphoma, can affect the lungs. In 1996, AIDS-related mortality started to fall sharply in industrialized countries following the introduction of highly active antiretroviral treatments (HAART). This was accompanied by an increase in the proportion of deaths attributable to non AIDS-defining solid tumors, and especially lung cancer (LC). The increased risk of LC relative to the general population of the same age seems to be due partly to a higher prevalence of smoking among HIV-infected subjects. The average age of HIV-infected patients at LC diagnosis is about 45 years. Most patients are symptomatic at diagnosis and have only mild or moderate immunosuppression. LC is diagnosed when it is locally advanced or metastatic (stages III-IV) in 75-90% of cases, as in patients with unknown HIV serostatus. Adenocarcinoma is the most frequent histologic type. The prognosis of LC is poorer in HIV-infected patients than in the general population. Data on the efficacy and toxicity of chemotherapy in this setting are rare and rather imprecise. Surgery remains the reference treatment for localized disease in patients with adequate functional status and general health, regardless of their immune status. Prospective clinical trials are needed to define the optimal LC treatment strategies in HIV-infected patients.


Assuntos
Infecções por HIV/complicações , Neoplasias Pulmonares/etiologia , Saúde Global , HIV , Infecções por HIV/epidemiologia , Humanos , Incidência , Neoplasias Pulmonares/epidemiologia , Fatores de Risco , Taxa de Sobrevida
14.
Presse Med ; 35(9 Pt 2): 1387-400, 2006 Sep.
Artigo em Francês | MEDLINE | ID: mdl-16969335

RESUMO

In our hospital as in many others, primary lung cancer is the most frequent indication for FDG PET. Studies have assessed the clinical utility of this imaging modality in characterizing solitary pulmonary nodules or masses, initial staging, defining tumor volume in radiotherapy and searching for recurrence of or restaging non-small cell carcinoma; studies are currently underway to evaluate its use in early assessment of chemotherapy response. Small cell lung cancer has a high FDG uptake and PET/CT can be useful for rapid staging. False negative results may be due to pure bronchioloalveolar carcinomas and endocrine tumors. FDG-PET will certainly play a more important role in the diagnosis and follow-up of pleural cancers in the future. An unexpected positive FDG PET focus should be considered as a warning, but histological proof should precede any irrevocable decisions.


Assuntos
Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pleurais/diagnóstico por imagem , Tomografia por Emissão de Pósitrons , Diagnóstico Diferencial , Fluordesoxiglucose F18 , Humanos , Estadiamento de Neoplasias , Compostos Radiofarmacêuticos
15.
Cancer Res ; 63(6): 1405-12, 2003 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-12649206

RESUMO

Increased numbers of tumor-infiltrating neutrophils are linked to poorer outcome in patients with adenocarcinoma of the bronchioloalveolar carcinoma (BAC) subtype. Hepatocyte growth factor (HGF) is a pleiotropic cytokine operating through activation of the proto-oncogene c-met and is a factor of poor prognosis in various cancers. Reports that neutrophils produce HGF led us to investigate their participation in the aerogenous spread of tumor cells and the prognosis of BAC, through the effect of HGF on c-met-expressing tumor cells. Immunoreactive HGF was detected in bronchoalveolar lavage fluid (BALF) supernatants from 34 of 36 patients, whereas it was undetectable in BALF from healthy controls. The HGF thus detected was locally produced, because HGF mRNA was expressed by the patients' fresh alveolar cells, and HGF protein was detected in 24-h culture supernatants. In immunocytochemical studies of BALF cytospin preparations and tumor specimens from the patients, neutrophils were always HGF-positive, whereas alveolar macrophages and tumor cells gave inconsistent results. Alveolar neutrophil-derived HGFs induced significant, concentration-dependent migration of BAC-derived tumor cells in vitro, and this effect was inhibited by anti-HGF neutralizing antibodies. Granulocyte-macrophage colony-stimulating factor and tumor necrosis factor alpha (present in the lung tumor microenvironment) provoked HGF release from neutrophil intracellular stocks, and the capacity of blood neutrophils from BAC patients to produce HGF was unaltered. Immunochemical studies of c-met expression in BALF cytospin preparations and tumor sections showed that most HGF receptor-bearing cells were tumor cells. High HGF levels in BALF supernatants were significantly associated with poorer outcome in patients with BAC and were an independent predictor of clinical outcome in multivariate analysis. Altogether, our results support the notion that BAC generates a local environment that attracts functionally normal neutrophils from peripheral blood and leads to neutrophil release of biologically active HGF on contact with HGF receptor-expressing tumor cells, thereby contributing to poorer patient outcome.


Assuntos
Adenocarcinoma Bronquioloalveolar/patologia , Fator de Crescimento de Hepatócito/biossíntese , Neoplasias Pulmonares/patologia , Neutrófilos/metabolismo , Adenocarcinoma Bronquioloalveolar/imunologia , Adenocarcinoma Bronquioloalveolar/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Líquido da Lavagem Broncoalveolar/química , Líquido da Lavagem Broncoalveolar/citologia , Progressão da Doença , Feminino , Fator de Crescimento de Hepatócito/fisiologia , Humanos , Neoplasias Pulmonares/imunologia , Neoplasias Pulmonares/metabolismo , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neutrófilos/imunologia , Prognóstico , Proto-Oncogene Mas , Proteínas Proto-Oncogênicas c-met/biossíntese
17.
Rev Pneumol Clin ; 61(3): 179-85, 2005 Jun.
Artigo em Francês | MEDLINE | ID: mdl-16142191

RESUMO

Drugs are frequently incriminated as the cause of interstitial pneumonia. There are two major mechanisms of drug-associated interstitial lung disease: direct toxicity and immunoallergic reaction. When a drug is suspected, the difficulty lies in obtaining proof. The chronology of the disease and its manifestations together with earlier evidence reported in the literature can lead to a tentative diagnosis of drug-associated interstitial pneumonia. Proof is obtained through surveillance during the disease course. In nearly all patients, therapeutic decisions must be taken on the basis of suspected drug involvement.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Doenças Pulmonares Intersticiais/induzido quimicamente , Doenças Pulmonares Intersticiais/diagnóstico , Lavagem Broncoalveolar , Diagnóstico Diferencial , Humanos
18.
Clin Infect Dis ; 36(10): e127-30, 2003 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-12746792

RESUMO

To analyze the impact of highly active antiretroviral therapy on lymphoid interstitial pneumonia (LIP), we reviewed the medical files of 5 human immunodeficiency virus (HIV)-infected patients in whom LIP was diagnosed during 1996-2001 who had never previously received antiretroviral treatment. Patients were mildly immunosuppressed at the time of diagnosis of LIP but had high plasma HIV loads and marked circulating and pulmonary CD8 hyperlymphocytosis. All patients improved clinically, radiologically, and functionally; improvement was accompanied by a drastic reduction in the virus load and an increase in the CD4 lymphocyte count.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/imunologia , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Doenças Pulmonares Intersticiais/imunologia , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Adulto , Terapia Antirretroviral de Alta Atividade/efeitos adversos , Contagem de Linfócito CD4 , Feminino , HIV/efeitos dos fármacos , HIV/fisiologia , Infecções por HIV/complicações , Infecções por HIV/imunologia , Humanos , Tecido Linfoide/imunologia , Masculino , Pessoa de Meia-Idade , Carga Viral
19.
Clin Infect Dis ; 38(3): 418-25, 2004 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-14727215

RESUMO

To analyze the impact of highly active antiretroviral therapy (HAART) on the characteristics and outcome of sarcoidosis in patients infected with human immunodeficiency virus (HIV), we identified HIV-infected patients in whom sarcoidosis was diagnosed between 1996 and 2000 from the admission registers of the pneumology departments of 12 hospitals in the Paris region (France). Sarcoidosis was diagnosed in 11 HIV-infected patients, of whom 8 were receiving HAART. HIV infection was diagnosed before sarcoidosis in 9 cases. At diagnosis of sarcoidosis, the mean CD4 cell count (+/-SD) was 390+/-213 cells/mm(3), and the mean plasma virus load was 4002+/-10,183 copies/mL. Sarcoidosis occurred several months after HAART introduction, when the CD4 cell count had increased and the plasma HIV load had decreased. Clinical and radiological characteristics, laboratory values for bronchoalveolar lavage fluid samples, and outcome after a long follow-up were similar for the patients receiving HAART and for HIV-uninfected patients.


Assuntos
Contagem de Linfócito CD4 , Infecções por HIV/complicações , Sarcoidose/complicações , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , HIV , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/imunologia , Humanos , Sarcoidose/diagnóstico , Sarcoidose/imunologia , Sarcoidose/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
20.
Intensive Care Med ; 29(10): 1837-9, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-13680121

RESUMO

OBJECTIVE: To present the successful management of two cases of massive hemoptysis related to pulmonary aneurysms in patients with active tuberculosis. DESIGN AND SETTING: Retrospective study in the respiratory intensive care unit (ICU) of a university hospital. PATIENTS: Between July 1996 and January 2002, 46 cases of hemoptysis related to active tuberculosis needed ICU admission. In two cases, pulmonary aneurysm was the source of bleeding. RESULTS: Diagnosis was suspected on enhanced CT scan and confirmed by pulmonary angiograms. Transcatheter occlusion of pulmonary arterial circulation was successful. Both patients were alive at 1-year follow-up. CONCLUSIONS: Massive hemoptysis occurring in patients with active tuberculosis could arise from pulmonary aneurysms. In such cases, bronchial artery embolization is ineffective. Before referring those patients for emergency surgery, an alternative strategy using angiographic study and transcatheter occlusion of pulmonary arterial circulation might be of interest.


Assuntos
Embolização Terapêutica , Hemoptise/terapia , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Adulto , Angiografia/métodos , Embolização Terapêutica/instrumentação , Hemoptise/etiologia , Humanos , Aneurisma Intracraniano/complicações , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Estudos Retrospectivos , Aço , Tomografia Computadorizada por Raios X
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