PubMed Health⌕ Search

Biomedical subjects

S Jouveshomme

Publications and source records attributed to S Jouveshomme.

13 recordsLinked to original sources

[Primary non-small-cell lung cancer: analysis of 419 T1 (<or=3 cm) tumors in the KBP-2000-CPHG study].

T1 tumors have the best prognosis among primary non-small-cell lung cancers, basically because surgery is generally possible. Among 5.667 patients with primary lung cancer included in the KBP-2000-CPHG study, we examined the characteristics of 419 T1 tumors, i.e. 9.2% of the non-small-cell cancers. Compared with the group of patients with non-T1 tumors, patients with T1 tumors were younger (p=0.0007). They had an equivalent percentage of squamous-cell tumors but more adenocarcinomas (40.3% versus 35.5%, p=0.05). TNM staging showed that 27.6% of the T1 tumors were metastatic at diagnosis (stage IV) with 12.4% T1N0M1 nad 15.2% T1N1-3M1. For the M0 tumors, 52.2% were T1N0 (stage IA) and 20.1% were T1N1-3. Squamous-cell tumors were significantly more frequent among the T1M1 tumors (p=0.07). More than one quarter (27.6%) of the T1 tumors were in stage IV, pointing out the importance of the initial work-up. This findings suggests we should revisit strategies in order to take into account new diagnostic possibilities. Likewise for the therapeutic strategy. Combinations using chemotherapy, surgery and radiotherapy should be better defined for this group of tumors.

Carcinoma, Non-Small-Cell Lung↗

[Evaluation of advanced non-small-cell lung cancer (ANSCLC) chemotherapy in routine practice].

BACKGROUND: Patients in ANCCLC chemotherapy-trials are not representative of the general lung cancer population. The purpose of this study was to describe the ANCCLC population routinely treated by chemotherapy in a general hospital, and to assess the results of chemotherapy in this population. METHODS: All newly diagnosed IIIB/IV ANCCLC chemotherapy-treated patients over a three-year period were prospectively assessed for response rate, toxicity and survival. RESULTS: Seventy seven patients (70% stage IV, 69% PS 1/0, 30% with cerebral metastases, 60% ineligible for major lung trials) received first-line chemotherapy (cisplatine or paraplatine with vinorelbine) with tumor control in 31 (40%) and symptom improvement in 20 (26%) patients. 17 (22%) patients experienced febrile neutropenia. 33 (43%) patients received second line chemotherapy (gemcitabine) with tumor control in 12 (36%) and symptom improvement in 9 (27%) patients. Overall median survival was 7 months and 30% patients were alive at 1 year. CONCLUSIONS: Routinely ANCCLC chemotherapy-treated patients in our center have poor prognostic factors and many comorbidities. Chemotherapy results in tumor control in 43% patients, - of whom two thirds have symptom improvement -, with a high rate of febrile neutropenia.

Aged↗

Alveolar lymphocytosis in patients with chronic uveitis: relationship to sarcoidosis.

Bronchoalveolar lavage (BAL) is frequently performed in patients with suspected ocular sarcoidosis. This study describes the immunogenetical, immunological, radiological, and functional features of a subclinical alveolar lymphocytosis unrelated to sarcoidosis in patients with chronic uveitis. Two hundred and ten patients with chronic uveitis of unknown origin, who underwent fiber-optic bronchoscopy with BAL as part of a prospective protocol over a three-year period, were evaluable for retrospective analysis. Sixty-five patients had alveolar lymphocytosis: Sarcoidosis was diagnosed in 13 (6%) patients, whereas alveolar lymphocytosis was considered unrelated to sarcoidosis in 52 (25%). Alveolar lymphocytosis unrelated to sarcoidosis was not associated with radiologically detectable interstitial lung disease or pulmonary function impairment. CD4/CD8 lymphocyte ratio was 3.7 +/- 3.0. Total cell count, total lymphocyte, and CD4 lymphocyte percentage were significantly lower when compared with sarcoidosis-related alveolitis (129,000 +/- 80,000 vs. 218,000 +/- 117,000, p <0.05; 33.1% +/- 13.2 vs. 39.7% +/- 13.2, p <0.05; and 54.3% +/- 18.2 vs. 65.4% +/- 10.1, p <0.05, respectively). Patients with alveolar lymphocytosis unrelated to sarcoidosis were older (47.8 +/- 17.7 years vs. 42.7 +/- 14.2 years, p <0.05) and more likely to carry the HLA-B51 allele (19.7% vs. 7.1%, p <0.01) than patients with chronic uveitis without alveolar lymphocytosis. They did not appear to be at risk of developing clinically apparent interstitial lung disease on followup. We conclude that alveolar lymphocytosis is frequently observed in patients with chronic uveitis. It is generally unrelated to sarcoidosis and may then be associated with a distinctive immunogenetic phenotype.

Bronchoalveolar Lavage Fluid↗

[Value of stereotaxic biopsy in diagnosis of subclinical breast lesions].

UNLABELLED: ALTERNATIVE TO SURGERY: New stereotactic guided breast biopsy procedures may constitute a major issue for the diagnosis of non-palpable breast lesions detected at mammography by eliminating the need for surgery in many women with benign breast disease. INDICATIONS: Vacuum-assisted core biopsies provide more complete sampling than the conventional 14-gauge stereo-tactic core biopsies, reducing the number of unsatisfactory biopsies. The more invasive advanced breast biopsy device obtains an intact lesion in its entirety for histological assessment. Currently, there is no definite strategy delineating the precise indications for the diagnosis of screening detected abnormalities. PERSPECTIVES: Because of the increase of the diagnostic armamentarium, care of women with non-palpable breast lesions should be multidisciplinary, involving radiologist, surgeons and histologists and rigorous medical and economic evaluation of diagnostic strategies involving these new health technologies should be pursued.

Biopsy, Needle↗

Traumatic coronary-pulmonary artery fistula, 23 years after a stab wound.

We describe a 50-year-old man with onset of severe hemoptysis and anemia. Twenty-three years earlier, he had undergone a surgical procedure for a left thoracic wound as a result of a knife injury. Current diagnosis of aneurysm of the left ventricle and coronary-pulmonary artery fistula was made after coronary arteriography. The patient underwent resection of the aneurysm and repair of the fistula.

Arterio-Arterial Fistula↗

Transfer of human CD4(+) T lymphocytes producing beta interferon in Hu-PBL-SCID mice controls human immunodeficiency virus infection.

Beta interferon (IFN-beta) exerts pleiotropic antiretroviral activities and affects many different stages of the human immunodeficiency virus (HIV) infectious cycle in IFN-treated cells. To explore whether transfer of genetically engineered human CD4(+) T cells producing constitutively low amounts of IFN-beta can eradicate HIV in vivo, we developed a new Hu-PBL-SCID mouse model supporting a persistent, replicative HIV infection maintained by periodic reinoculations of activated human CD4(+) T cells. Transferring human CD4(+) T cells containing the IFN-beta retroviral vector drastically reduced the preexisting HIV infection and enhanced CD4(+) T-cell survival and Th1 cytokine expression. Furthermore, in 40% of the Hu-PBL-SCID mice engrafted with IFN-beta-transduced CD4(+) T cells, HIV-1 was undetectable in vivo as well as after cocultivation of mouse tissues with human phytohemagglutinin-stimulated lymphoblasts. These results indicate that a therapeutic strategy based upon IFN-beta transduction of CD4(+) T cells may be an approach to controlling a preexisting HIV infection and allowing immune restoration.

Animals↗

Preliminary results of collapse therapy with plombage for pulmonary disease caused by multidrug-resistant mycobacteria.

Seven patients underwent collapse therapy with polystyrene sphere plombage for pulmonary disease caused by multidrug-resistant mycobacteria. Four patients were infected with multidrug-resistant strains of Mycobacterium tuberculosis, two with Mycobacterium xenopi, one with Mycobacterium avium. All patients were heavily pretreated before surgery, had extensive, bilateral cavitary disease and were considered unsuitable for resection because of extensive disease or functional respiratory impairment. Six patients had active disease at time of surgery. Collapse therapy with insertion of six to 18 spheres resulted in long-standing bacteriological conversion in six patients. Collapse therapy was unilateral in six and bilateral in one. No immediate postoperative complication or death was observed. Hospital stay was short (mean 12 d). Collapse therapy is a conservative alternative therapy in patients with pulmonary disease caused by multidrug-resistant mycobacteria at high risk of treatment failure considered unsuitable for pulmonary resection.

Adult↗

Clinical utility of an amplification test based on ligase chain reaction in pulmonary tuberculosis.

We evaluated the sensitivity and specificity of a new semiautomated direct amplification test (DAT), the LCx-MTB, for the diagnosis of pulmonary tuberculosis (TB) and assessed its positive predictive value by focusing on patients with high clinical and radiologic suspicion of pulmonary TB. Respiratory tract specimens from 32 consecutive patients with high suspicion of active pulmonary TB (case patients) and from 204 control patients were cultured for Mycobacterium tuberculosis and tested by LCx-MTB. Sensitivity and specificity of LCx-MTB when compared with culture was, respectively, 80 and 98%. Pulmonary TB was confirmed in the 32 case patients without knowledge of the LCx results: 18 patients were smear- and culture-positive for M. tuberculosis, and all gave at least one specimen that was LCx-positive. Eight patients were smear-negative culture-positive, and seven gave at least one LCx-positive specimen. LCx-MTB was negative in all the specimens obtained from six patients with smear- and culture-negative TB. A positive LCx-MTB result in a smear negative specimen was 100% predictive that at least one of the case patients' specimens would yield M. tuberculosis. As a consequence, knowledge of the LCx-MTB results at the time of specimen collection could have hastened the start of the antituberculosis therapy in three (21%) smear-negative case patients and could have avoided unnecessary invasive diagnostic procedures in four (29%). We conclude that the sensitivity of LCx-MTB in detecting M. tuberculosis DNA in respiratory tract specimens is similar to other DATs, that LCx-MTB is a reliable test for confirmation of TB in smear-positive patients and that LCx-MTB could be beneficial as a diagnostic step in smear-negative patients with a high suspicion of pulmonary TB.

Antigens, Bacterial↗

[Thoracic infections in immunocompetent patients. The contribution of computed tomography].

Chest X-Ray is the most accurate method of imaging for infectious diseases in an immunocompetent patient. Computed tomography (CT) may be useful in certain circumstances, particularly in case of atypical findings at the time of diagnosis or in case of complications. CT helps to detect and perform a complete study of the lesions, some aspects being very suggestive of a diagnosis, as in post-primary active tuberculosis. CT may also detect an unknown underlying etiology. Multiplanar reformations with helical CT can be useful for example in case of empyema. In case of non tuberculous bacterial infections, CT is mainly recommended when abscess and empyema are difficult to differentiate or in case of pleural complications with possible percutaneous treatment. In case of tuberculosis, CT may be indicated when clinical and chest X-Ray findings are discordant, in case of mediastinal adenopathies, when reactivation is suspected or in case of complications as hemoptysis. A baseline CT examination could be proposed at the end of a specific treatment to facilitate the diagnosis of reactivation tuberculosis. A nontuberculous mycobacterial infection should finally be suspected in front of peculiar CT findings.

Abscess↗

[Antitubercular chemotherapy].

Treatment of tuberculosis has three major goals: healing the patient, preventing selection of resistant strains and control transmission of tuberculosis. A 6 month regimen consisting of isoniazid, rifampin with addition of pyrazinamide for 2 months is the preferred treatment for pulmonary and extra-pulmonary tuberculosis. If resistance to isoniazid is suspected, ethambutol should be added until drug susceptibility studies become available. This treatment is effective in both HIV infected and uniinfected persons. Treatment failure is mostly related to lack of patient adherence to the drug regimen and to multidrug-resistant tuberculosis. The treatment of multidrug-resistant tuberculosis requires second line drugs which are less effective and poorly tolerated. Prevention of resistant tuberculosis needs adequate treatment of each case of tuberculosis and improving of the patient compliance.

AIDS-Related Opportunistic Infections↗