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Dive into the research topics where Jose M. Martinez-Vazquez is active.

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Featured researches published by Jose M. Martinez-Vazquez.


European Journal of Clinical Microbiology & Infectious Diseases | 1992

Value of differential quantitative blood cultures in the diagnosis of catheter-related sepsis

Josep A. Capdevila; A.M. Planes; M. Palomar; Isabel Gasser; Benito Almirante; Albert Pahissa; E. Crespo; Jose M. Martinez-Vazquez

A prospective study was performed to assess the value of differential quantitative blood cultures in the diagnosis of catheter-related sepsis when this condition is suspected on clinical grounds and to establish a reliable discriminative value for application without removal of the inserted catheter. A total of 107 central venous catheters from 64 patients were used for the study. Blood was obtained simultaneously through the suspected infected device and from a peripheral venipuncture. The catheter was removed and its tip cultured semiquantitatively. Catheter-related sepsis occurred in 17 patients. Using as cut-off value a colony count fourfold higher in blood drawn through the catheter than in simultaneously drawn peripheral blood, a sensitivity of 94 %, specificity of 100 % and positive predictive value of 100 % were obtained. A single bacterial count > 100 cfu/ml in the quantitative culture of the catheter blood specimen in the presence of a positive qualitative peripheral blood culture of the same organism was also highly suggestive of catheter-related sepsis. Differential quantitative blood culture is a reliable method for the diagnosis of catheter-associated sepsis without catheter removal.


Tubercle | 1986

Adenosine deaminase activity in the diagnosis of lymphocytic pleural effusions of tuberculous, neoplastic and lymphomatous origin

Inma Ocaña; Jose M. Martinez-Vazquez; Esteban Ribera; Rosa Segura; Carlos Pascual

We studied the activity of adenosine deaminase in 74 lymphocytic pleural effusions which were divided into four groups according to the aetiology: tuberculous (38 cases), neoplastic (17), lymphomatous (7) and miscellaneous (12). The mean enzyme value was significantly higher in the tuberculous cases (93.81 +/- 29.56 U/I) than for the other three groups and significantly higher in pleural effusions of lymphomatous origin than in the neoplastic and miscellaneous groups. Based on the lowest value of enzyme activity found in the tuberculous group (50 U/I), the test had a sensitivity of 1 and a specificity of 0.97.


European Respiratory Journal | 1994

Bacterial pneumonia in HIV-infected patients: a prospective study of 68 episodes

Vicente Falcó; T Fernandez de Sevilla; J. Alegre; J. Barbé; A. Ferrer; Inmaculada Ocaña; Esteban Ribera; Jose M. Martinez-Vazquez

We collected clinical and microbiological observations, as well as follow-up on human immunodeficiency virus (HIV)-infected patients with bacterial pneumonia, and compared pneumococcal pneumonia in patients with and without HIV infection. Fifty five HIV-infected patients, who had had 68 episodes of bacterial pneumonia, were studied prospectively. Twenty one HIV-infected patients with pneumococcal pneumonia were compared to 69 non-HIV-infected patients with pneumococcal pneumonia. Aetiological diagnosis was established in 48 cases (71%). The most common causative agents were S. pneumoniae and H. influenzae. Sixty percent of episodes took place in asymptomatic carriers of HIV infection and 37% in acquired immune deficiency syndrome (AIDS) patients. Overall mortality was 10%. Fifty five percent of patients with follow-up had recurrent episodes. Bacteraemic pneumococcal pneumonia was more frequent in HIV- than in non-HIV-infected patients, and the mortality of pneumococcal pneumonia was also higher in HIV- (19%) than in non-HIV-infected (4.3%) patients. We conclude that bacterial pneumonia is a frequent problem in HIV-infected patients and that recurrent episodes are common. The clinical presentation of pneumococcal pneumonia is generally indistinguishable from that occurring in normal hosts, but bacteraemia is more common and the mortality is higher in HIV-infected patients.


Annals of Internal Medicine | 1984

Bronchial Carcinoid and Parathyroid Adenoma

Jose M. Martinez-Vazquez; José A. Capdevila; Esteban Ribera; Inma Ocaña; Raul Muñiz

Excerpt To the editior: In 1962 Williams and Celestin (1) published the first report of an association between bronchial carcinoid and multiple endocrine neoplasia type 1 with three-gland disease. ...


Chest | 1983

Adenosine Deaminase in Pleural Fluids: Test for Diagnosis of Tuberculous Pleural Effusion

Inma Ocaña; Jose M. Martinez-Vazquez; Rosa Segura; Tomás Fernandez-De-Sevilla; José A. Capdevila


Chest | 1983

Clinical InvestigationsAdenosine Deaminase in Pleural Fluids: Test for Diagnosis of Tuberculous Pleural Effusion

Inma Ocaña; Jose M. Martinez-Vazquez; Rosa Segura; Tomás Fernandez-De-Sevilla; José A. Capdevila


The Journal of Infectious Diseases | 1987

Activity of Adenosine Deaminase in Cerebrospinal Fluid for the Diagnosis and Follow-Up of Tuberculous Meningitis in Adults

Esteban Ribera; Jose M. Martinez-Vazquez; Inrna Ocaña; Rosa Segura; Carlos Pascual


Chest | 1988

High Level of Interferon Gamma in Tuberculous Pleural Effusion

Esteban Ribera; Inmaculada Ocaña; Jose M. Martinez-Vazquez; Mariona Rossell; Teresa Espanol; Alvaro Ruibal


Chest | 1990

Lymphocyte Proliferation and Gamma-Interferon Production after “in Vitro” Stimulation with PPD: Differences between Tuberculous and Nontuberculous Pleurisy in Patients with Positive Tuberculin Skin Test

Esteban Ribera; Teresa Espanol; Jose M. Martinez-Vazquez; Inmaculada Ocaña; Gloria Encabo


JAMA Internal Medicine | 1994

Incidence and Risk Factors of Recurrent Episodes of Bacteremia in Adults

Josep A. Capdevila; Bonito Almirante; Albert Pahissa; A.M. Planes; Esteve Ribera; Jose M. Martinez-Vazquez

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Esteban Ribera

Autonomous University of Barcelona

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Inma Ocaña

Autonomous University of Barcelona

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Inmaculada Ocaña

Autonomous University of Barcelona

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Rosa Segura

Autonomous University of Barcelona

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Vicente Falcó

Autonomous University of Barcelona

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A.M. Planes

Autonomous University of Barcelona

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Albert Pahissa

Autonomous University of Barcelona

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Benito Almirante

Autonomous University of Barcelona

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Carlos Pascual

Autonomous University of Barcelona

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Josep A. Capdevila

Autonomous University of Barcelona

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