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Biomedical subjects

G Nouvet

Publications and source records attributed to G Nouvet.

At least 19 recordsLinked to original sources
PubMed2006

[Acute encephalopathy after infusion of paclitaxel].

INTRODUCTION: Paclitaxel is an anti-neoplastic agent commonly used in the treatment of primary bronchial carcinoma and tumours of the breast and ovary. Its toxicity, haematological and peripheral neuropathy, are well known. On the other hand central nervous system toxicity is rare. CASE REPORT: We report a case of acute encephalopathy, occurring eight hours after infusion of Paclitaxel, in a patient treated for adenocarcinoma of the lung. It included drowsiness, confusion and hallucinations, and resolved completely after ten days. The diagnosis of encephalopathy secondary to Paclitaxel injection was reached after exclusion of other possible aetiologies. CONCLUSIONS: Acute encephalopathy is a rare complication of intravenous Paclitaxel treatment. The pathophysiology of this toxic effect is discussed: a direct toxicity of Paclitaxel or of its solvent (polyoxethylated castor oil), and the role of a pre-existing alteration of the blood-brain barrier.

Acute Disease↗
PubMed2006

Fatal haemoptysis in a case of lymphomatoid granulomatosis treated with rituximab.

Lymphomatoid granulomatosis is a rare angiocentric and angiodestructive disease, which commonly involves the lungs but also the brain, kidneys, liver and skin. This report describes the case of a 33-yr-old female with an aggressive form of lymphoid granulomatosis treated with an anti-CD20 antibody. Dramatic radiological improvement was seen at the fourth week. However, the patient died at home 1 month after the last rituximab administration from a massive haemoptysis.

Adult↗
PubMed2003

Occupational and nonoccupational factors associated with high grade bronchial pre-invasive lesions.

Besides tobacco exposure, factors associated with the development of pre-invasive bronchial lesions are not known. Autofluorescence bronchoscopy was used to assess the prevalence of severe dysplasia and carcinoma in situ (SD/CIS) of the proximal bronchial tree in relation to occupational or nonoccupational carcinogen exposure. Among the 241 individuals in this study, the overall prevalence of at least one SD/CIS was 9% (21 subjects). Multivariable analysis revealed significant and independent associations between presence of SD/CIS and: 1) active smoking, relative to former smokers; 2) presence of synchronous invasive lung cancer; 3) duration of asbestos exposure and; 4) exposure to other occupational carcinogens. The independent associations of synchronous lung cancer with severe dysplasia and carcinoma, after adjusting for both occupational and nonoccupational carcinogen exposures, suggest other mechanisms than a field cancerisation may be involved in the carcinogenesis of these pre-invasive lesions. Moreover, active smokers, patients with recently resected invasive lung cancer and workers occupationally exposed to bronchial carcinogens may represent a population of choice for early cancer endoscopic detection programmes in view of their high severe dysplasia and carcinoma prevalence.

Asbestos↗
PubMed2003

[Acute respiratory distress syndrome due to pneumonitis following intrathecal methotrexate administration].

INTRODUCTION: Methotrexate, given orally or systemically, is associated with pneumonitis in 7% of cases. CASE REPORT: This case report describes acute respiratory distress syndrome, due to diffuse pneumonitis, in a patient with malignant non-Hodgkin's lymphoma being treated with combination chemotherapy which included doxorubicin, cyclophosphamide, bleomycin, vindesin and intrathecal methotrexate with G-CSF (filgrastine- Neupogen). The clinical course, the lack of an identifiable infectious agent and the complete response to corticosteroids suggested a drug-induced cause. After ruling out the other chemotherapy agents, methotrexate was considered to be the causal agent. The unusual feature of this case was that pneumonitis developed after intrathecal administration of methotrexate. CONCLUSION: Methotrexate-associated respiratory complications can occur with whichever route the drug is administered.

Anti-Inflammatory Agents↗
PubMed2003

[Low grade pulmonary sarcoma preceding the discovery of a uterine primary].

INTRODUCTION: Low grade pulmonary sarcomas are very rare tumours. We report the case of a low grade sarcoma of the lung occurring two years prior to the finding of a uterine primary. CASE REPORT: Complete surgical excision of a low grade pulmonary sarcoma was performed. The initial search for dissemination was negative. Two years later a follow-up scan discovered a uterine mass as well as a para-aortic shadow that proved to be the primary tumour (low grade uterine sarcoma) and a metastasis. CONCLUSION: This is the second case of a pulmonary metastasis discovered before a primary low grade uterine sarcoma. The first was found during the investigation of a pulmonary sarcoma. The main differential diagnosis to consider is metastatic leiomyosarcoma. In both cases their finding justifies the search for a uterine primary by immunohistochemical examination for oestrogen and progesterone receptors as well as pelvic ultrasound or even magnetic resonance imaging.

Aged↗
PubMed2002

Co-existent cutaneous cryptococcosis of the forearm and cutaneous alternariosis of the leg in patient with metastatic thymoma.

BACKGROUND: Cryptococcosis and alternariosis are rare opportunistic infections often observed in immunocompromised patients. Because Cryptococcus and Alternaria are ubiquitous fungi found in soil, the presence of fungi in the dermis has to be observed on histological examination to confirm a real cutaneous, invasive, infection. PATIENT: We report the first case of concomitant cutaneous cryptococcosis and cutaneous alternariosis, in an immunocompromised patient treated for a metastatic thymoma. CONCLUSION: This observation underlines the fact that the possible co-existence of several rare infections in immunocompromised patients should take into consideration pathogen identification in order to adapt the therapy to individual patient requirements.

Aged↗
PubMed2002

[Unrecognized causes of chronic cough].

Chronic cough is defined as persistence of the symptom for longer than one month. It is a common reason for consultation. A systematic diagnostic approach based on the history, clinical examination and a number of investigations (chest x-ray, lung function tests, oesophageal pH monitoring and sinus x-rays) reveals the cause in most cases. The main aetiologies are post-nasal drip, gastro-oesophageal reflex, asthma, chronic bronchitis, and the use of angiotensin converting enzyme inhibitors. Nevertheless, in some cases, the cause is not found. In this situation it is necessary to search for less common pathologies where cough is just a symptom of systemic disease, such as connective tissue disorder (Sjogren's syndrome, atrophic polychondritis), vasculitis (Wegener's granulomatosis), Horton's syndrome (cluster headaches), amyloidosis and inflammatory bowel disease. It may also be a matter of local pathology of the tracheo-bronchial tree, such as tracheo-bronchomegaly, tracheopathia osteoplastica, rare or unrecognized infections (whooping cough, post-viral cough, bronchial tuberculosis), reactive bronchial dysfunction, eosinophilic bronchitis or radiologically occult bronchial carcinoma. Il is also necessary to consider vocal cord dysfunction and cough due to medication before accepting a diagnosis of psychogenic cough.

Bronchial Diseases↗
PubMed2001

Follow-up of bronchial precancerous lesions and carcinoma in situ using fluorescence endoscopy.

Little is known about the natural history of precancerous bronchial lesions. Histological changes occurring in 416 bronchial intraepithelial lesions (104 high-risk subjects) were assessed over a 2-yr period, using repeated follow-up autofluorescence endoscopies. During the study, 6 of 36 normal epitheliums became dysplastic; 47 of 152 metaplasia evolved to low-grade dysplasia, two progressed to carcinoma in situ, and one to invasive cancer; 6 of 169 low-grade epithelial lesions progressed to a persistent severe dysplasia; 10 of 27 severe dysplastic lesions and 28 of 32 carcinoma in situ persisted or progressed, respectively (p = 0.0005, severe dysplasia versus carcinoma in situ 24 mo outcome). Carcinoma in situ appeared more frequent in patients with a prior history or concomitant cancer (p = 0.003). Persistence of smoking during the study did not influence high-grade lesion outcome. Progression of low-grade epithelial lesions during the study occurred only in patients with at least a high-grade lesion in another site at baseline (9 of 147 lesions, 6.1%). Our study suggests that low-grade epithelial lesions could be safely followed-up at 2 yr in patients without high-grade lesions at baseline, whereas severe dysplasia should be treated if they persist at 3 mo. Immediate treatment of carcinoma in situ appears warranted.

Adult↗
PubMed2000

[Evaluation and symptomatic treatment of surinfectious exacerbations of COPD: preliminary study of antibiotic treatment combined with fenspiride (Pneumorel 80mg) versus placebo].

UNLABELLED: Exacerbations of chronic obstructive pulmonary disease (COPD) have an inflammatory component in addition to the possible infectious component. The antiinflammatory properties of fenspiride (Pneumorel(R) 80 mg) should be evaluated in this frequent clinical situation. OBJECTIVES: Assess the supplementary therapeutic benefit provided by fenspiride administered in combination with antibiotics in COPD patients presenting an episode of bronchial infection. PATIENTS AND METHODS: A preliminary randomized placebo-controlled double-blind study was conduced in 7 centers. Patients under 80 years of age of both sexes were included. All patients had COPD and presented a bronchial infection defined as the presence of at least 2 of the 3 criteria defined by Anthonisen. Patients were randomly assigned to group F or group P. Group F received an antibiotic therapy from day 1 to day 11 plus fenspiride (3 x 80mg/d from day 0 to day 30). Group P received the same antibiotic therapy plus placebo. Amoxicillin 500mg plus clavulanic acid 125, 3 tablets/day, was administered in both groups. RESULTS: Thirty-nine patients were included (group F 19 patients, group P 20 patients; 6 women and 33 men; mean age 61.1 +/- 9.8 years). The 3 Anthonisen criteria were present in 79% and 75% of the patients in group F and P respectively (NS). On day 11, expectoration resolved in 39% and 32% (NS) and cough in 44% and 16% (NS) of the patients in groups F and P respectively. Lung auscultation returned to normal in 83% of the patients in group F compared with 47% in group P (p=0.05). A composite clinical score including expectoration cough and auscultation findings showed that 28% of the patients in group F were symptom-free on day 11 compared with 0% in group P (p=0.04). On day 30, the two groups were comparable. CONCLUSION: In this preliminary study of patients with COPD presenting a bronchial superinfection, there was a significant improvement in lung auscultation and in the composite clinical score in patients given fenspiride. Fenspiride was thus found to provide an early clinical benefit.

Acute Disease↗
PubMed1999

[Primary pleural lymphoma after collapse therapy: modern aspects of an historic disease].

INTRODUCTION: Pleural lymphomas after long standing pyothorax due to pulmonary tuberculosis are now well identified. Most cases have been described by Japanese investigators and it seems rare or unrecognised in Western countries. We report the study of six cases observed in a single institution. PATIENTS AND METHODS: Six pyothorax-associated pleural lymphomas, among 1,038 lymphoma (0.6%) collected during a period from 1989 to 1998, are described. Diagnosis was established by two pathologists with the usual histologic and immunohistochemical methods, according to the working formulation. The in situ hybridization method for Epstein-Barr virus was performed. RESULTS: The average age of the patient was 73 years. Presenting symptoms combined chest pain and constitutional symptoms more than 45 years after artificial pneumothorax or tuberculous pleuritis. Computerized tomography revealed a pleural mass which involved the adjacent chest wall. Open biopsy by thoracotomy show a diffuse B-cell non-Hodgkin-lymphoma in all cases. Though the lymphoma was initially localized, many poor prognostic factors (age, performance status, LDH, histology) explain the pejorative evolution (average survival of five months). Patients died from an uncontrolled tumoral proliferation or by infectious complications. In situ hybridization confirms the presence of Epstein-Barr virus in tumoral cells. CONCLUSION: Pleural lymphoma is an established complication of artificial pneumothorax. Even if the Epstein-Barr virus plays a crucial role in the pathogenesis, and despite the number of artificial pneumothorax operations that have been widely performed, this lymphoma remains rare, suggesting additional oncogenic factors.

Aged↗
PubMed1996

A study of long-term survival, functional outcome and quality of life in patients with polymyositis or dermatomyositis.

UNLABELLED: There have been few studies of long-term functional outcomes and quality of life in patients with polymyositis or dermatomyositis. PATIENTS: 28 patients, 16 female and 12 male, meeting Bohan's and Peter's criteria and admitted between 1970 and 1993, were studied retrospectively; nine had polymyositis and 19 dermatomyositis (with onset during childhood in five cases); mean age was 43.5 years. METHODS: we reevaluated 18 of the 28 patients, after a mean interval of eight years; among the ten remaining patients, eight had died, one could not be traced and one declined reevaluation. Survival, muscle function, joint function, respiratory function and quality of life (AIMS 1) were determined. Factors predicting the value of these parameters were looked for. RESULTS: significant excess mortality was observed as compared with the general population in the Seine Maritime region of France. Easy fatigability and decreased exercise tolerance were found in 50% of evaluated patients; Ritchie's index was 0 in 67% of patients and between 1 and 7 in 33%; 55% of patients had dyspnea and 50% had abnormal respiratory function parameters; quality of life items were usually rated "fairly good" or "very good", except for "physical activities", which were given "poor" or "very poor" ratings by one third of patients. We found no factors associated with survival or any of the above-mentioned functional parameters, except for male gender, which predicted better muscle function. DISCUSSION: polydermatomyositis is associated with excess mortality; alterations in muscle function persist in half the cases and the ability to carry out physical activities is often reduced. The retrospective design of our study, small sample size and heterogeneity of our population precluded identification of factors predictive of survival, loss of function, or poor quality of life.

Adult↗