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Biomedical subjects

B Delclaux

Publications and source records attributed to B Delclaux.

14 recordsLinked to original sources

[Cohort KBP-2000-CPHG: Evaluation of factors influencing survival in lung cancer].

INTRODUCTION: Lung cancer continues to have a poor prognosis despite some therapeutic advances. BACKGROUND: The last fifteen years has seen a dramatic increase in the incidence of lung cancer in women and an increased proportion of adenocarcinomas in both sexes. A study of overall survival as a function of gender and other prognostic factors has been established using the cohort of patients from the study KBP-2000-CPHG. METHODS: KBP-2000-CPHG is an epidemiological study carried out throughout the year 2000 looking at histologically confirmed primary lung cancers managed in general hospitals. 5,667 patients have been included. The study of survival looks at 2 and 5-year outcomes. The date and cause of death are recorded for each patient. In the absence of these data the date of the last contact is noted. If this is less than 4 months the patient is considered to be alive. If more than four months have elapsed a graduated strategy for establishing vital status is pursued which involves reviewing records from various different sources. RESULTS AWAITED: A preliminary review of the data was undertaken between September 2004 and March 2005 which obtained data on 5 567 patients. The analysis of survival according to sex and other forecast prognostic factors is underway.

Adenocarcinoma↗

[Primary lung cancer in elderly subjects in France].

INTRODUCTION: There are few data on primary bronchial carcinoma in France. We report here the results of the study KBP 2000-CPHG in which there were 1868 patients aged 70 or more and 338 aged 80 or more. METHODS: We compared the patients under 70 (Group I) with those aged 70 or more (Group II) as well as with the details of the over 80's. RESULTS: Group II included significantly more women (17.4% vs 15.2%; p = 0.04), non-smokers (11.2% vs 5.3%; p<0.0001), patients of poor performance status (24.2% vs 14.5%; p<0.0001) and squamous carcinomas (44.5% vs 37.8%; p<0.001) than Group I, but fewer adenocarcinomas (27.2% vs 31.5%; p = 0.009) and as many small cell carcinomas (15.9% vs 16.9%; p = 0.32). In Group II there were less stage III and IV tumours (75.1% vs 78.1%; p = 0.0005) more symptomatic treatment (23.2% vs 6.1%) and radiotherapy alone (12.8% vs 3.8%; p < 0.0001). The results were similar beyond 80 years. On multivariate analysis age, performance status and stage appeared to be independent variables in the choice of curative or symptomatic treatment. CONCLUSIONS: Age alone is not therefore a limiting factor in the choice of treatment.

Age Factors↗

[Primary bronchial carcinoma in elderly subjects in France].

INTRODUCTION: There are few data on primary bronchial carcinoma in France. We report here the results of the study KBP 2000-CPHG in which there were 1868 patients aged 70 or more and 338 aged 80 or more. METHODS: We compared the patients under 70 (Group I) with those aged 70 or more (Group II) as well as with the details of the over 80's. RESULTS: Group II included significantly more women (17.4% vs 15.2%; p=0.04), non-smokers (11.2% vs 5.3%; p<0.0001), patients of poor performance status (24.2% vs 14.5%; p<0.0001) and squamous carcinomas (44.5% vs 37.8%; p<0.001) than Group I, but fewer adenocarcinomas (27.2% vs 31.5%; p=0.009) and as many small cell carcinomas (15.9% vs 16.9%; p=0.32). In Group II there were less stage III and IV tumours (75.1% vs 78.1%; p=0.0005) more symptomatic treatment (23.2% vs 6.1%) and radiotherapy alone (12.8% vs 3.8%; p<0.0001). The results were similar beyond 80 years. On multivariate analysis age, performance status and stage appeared to be independent variables in the choice of curative or symptomatic treatment. CONCLUSIONS: Age alone is not therefore a limiting factor in the choice of treatment.

Age Factors↗

[Epidemiologic of primary bronchial carcinoma management in the general French hospital centers].

INTRODUCTION: The College of General Hospital Respiratory Physicians have conducted a study aimed at a better understanding of the details and modalities of management of patients suffering from bronchial carcinoma in general hospitals in France. MATERIALS AND METHODS: A prospective epidemiological study was carried out on all the new cases of histologically proven bronchial carcinoma seen in general hospitals in the year 2000. The data were collected by a standardised questionnaire. RESULTS: 137 centres of investigation identified 5 667 patients, mean age 64.3 years, of whom 16% were women. 7.2% of patients were non smokers (with an incidence of 32.3% non-smokers among the women) and 40.3% were ex-smokers. Histologically 16.9% were small cell carcinomas, 40% squamous carcinomas (43.1% among the men, 23.4% among the women, p<0.0001), 30.1% adenocarcinomas (27.2% among the men, 45.3% among the women, p<0.0001). 77.1% of non small cell carcinomas were stages III and IV, and 66.8% of small cell carcinomas were disseminated, with no difference between the sexes. CONCLUSION: Respiratory physicians in general hospitals manage more than a quarter of the cases of bronchial carcinoma seen annually in France. The number of women affected is high with a significant percentage of non-smokers and adenocarcinomas.

Aged↗

[Renal sarcoidosis with a pseudotumoral pyelic localization].

BACKGROUND: Renal sarcoidosis exceptionally presents as a unilateral pyelic pseudotumor as in this case where it was associated with granulomatous nephropathy. CASE REPORT: A 33-year-old man had a two-year history of systemic sarcoidosis with no renal involvement. He developed renal failure related to interstitial granulomatous nephropathy associated with a pyelic localization leading to unilateral hydronephrosis. Urine drainage associated with corticosteroid therapy provided a favorable course. DISCUSSION: Renal involvement in sarcoidosis is usually the consequence of hypercalcemia and hypercalciuria related to ectopic secretion of calcitriol by the sarcoidosic granulomas, with urinary lithiasis and nephrocalcinosis leading to renal failure and also granluomatous interstitial nephropathy. Glomerulopathy or obstructive nephropathy are rarely reported. Intraluminal localizations such as the pyelic lesion in our case are exceptional but must be detected early since they respond to corticosteroid therapy.

Adrenal Cortex Hormones↗

Oral immunization with bacterial extracts for protection against acute bronchitis in elderly institutionalized patients with chronic bronchitis.

Acute bronchitis is a major source of morbidity in elderly patients. The purpose of this study was to assess the preventive effects of oral immunisation with a bacterial extract. Three hundred and fifty four patients with chronic bronchitis, living in institutions for the elderly (aged > 65 yrs), were included in a randomized, placebo-controlled, double-blind study. The purpose of the study was to assess preventive effects of OM-85 BV (an immunostimulating agent consisting of lyophilized fractions of eight of the most common pathogens isolated in respiratory tract infections) against acute lower respiratory tract infections. Two hundred and ninety patients completed the study (143 taking placebo and 147 taking OM-85 BV). There was a 28% reduction in the number of lower respiratory tract infections in the patients treated with OM-85 BV; this was entirely due to 40% reduction in the number of episodes of acute bronchitis (p < 0.01), with no difference in the number of episodes of pneumonia and bronchopneumonia. A larger number of patients in the OM-85 BV group were free of acute bronchitis throughout the 6 month study period (96 vs 69) and there was a 28% reduction in the number of antibiotic prescriptions in the OM-85 BV treated group. These results suggest that OM-85 BV has a protective effect against acute bronchitis in elderly patients living in institutions.

Aged↗

Arterial blood gases in elderly persons with chronic obstructive pulmonary disease (COPD).

With the increasing number of elderly people in developed countries, physicians are often confronted with patients whose arterial oxygen tension, PaO2, is lower than that of normal young adults. The normal values predicted in the literature for very old individuals are generally extrapolated from younger subjects. The purpose of the present study was to obtain PaO2 values from a large population of elderly subjects with normal and obstructive ventilatory function. We measured arterial blood gases in 274 subjects, aged 65-100 yrs (mean 82 yrs), with chronic bronchitis and moderate airways obstruction (mean forced expiratory volume in one second (FEV1), 53% pred). Mean PaO2 was 10.0 +/- 1.4 kPa (75.2 +/- 10.8 mmHg) and mean arterial carbon dioxide tension (PaCO2) was 5.4 +/- 0.8 kPa (40.5 +/- 6.1 mmHg). Both PaO2 and PaCO2 were independent of age. Blood gas abnormalities were associated with airways obstruction: PaO2 was positively correlated to FEV1 and PaCo2 was negatively correlated to FEV1. PaO2 was 10.8 +/- 1.4 kPa (81.5 +/- 10.7 mmHg) in the patients with FEV1 > or = 90% predicted versus 9.5 +/- 1.3 kPa (71.5 +/- 10.1 mmHg) in those with FEV1 < or = 35% pred. These findings suggest that the predicted PaO2 extrapolated from younger normal values are often erroneously underestimated. It is probably more accurate to accept as normal a PaO2 of 10.6-11.3 kPa (80-85 mmHg) for all subjects over 65 yrs, irrespective of their age.

Aged↗

[Preventive effect of an immunomodulator, OM-85 BV, on acute exacerbations of chronic bronchitis in elderly patients. Preliminary results at six months in 291 patients].

Three hundred fifty six patients aged 65 years or more (mean age 81.8 years) who were suffering from chronic bronchitis were included in a double-blind trial against placebo to assess the preventative effect of OM-85 BV against acute exacerbations of chronic bronchitis. OM-85 BV is an immunostimulant composed of lyophilised factions of 8 bacteria which are most frequently encountered during the course of respiratory tract infections. 291 patients completed the study. In the group treated by OM-85 BV, a significant increase in the number of patients with no episode of acute bronchitis was noted (96 versus 71, p = 0.006). There was a 38.8% reduction in the absolute numbers of episodes of acute bronchitis and a 33% reduction in the number of prescriptions for antibiotics, however there was no difference in the number of pneumonias and bronchopneumonias. These results show the protective effect of OM-85 BV against bronchial superinfections in a large population of elderly patients suffering from chronic bronchitis.

Acute Disease↗

Clinical experience with OM-85 BV in upper and lower respiratory tract infections.

The preventive effect of OM-85 BV on recurrent ENT and respiratory tract infections has been documented in a series of clinical trials. This article reviews the more significant controlled clinical trials investigating the efficacy and safety of OM-85 BV in airway infections. The literature reviewed covers all age groups. In summary, the administration of OM-85 BV was associated with a decrease in the number of acute exacerbations, with an increase in the number of patients remaining free from infections and with a decrease in antibiotic consumption. These results indicate the efficacy of oral immunostimulation with the bacterial extract OM-85 BV in all age groups and demonstrate its protective effect against recurrent airway infections.

Adjuvants, Immunologic↗

[Bronchial tuberculosis. Radiologic endoscopic and clinical aspects].

Nowadays, bronchial tuberculosis is an uncommon, although probably underestimated, form of tuberculosis. The records of 23 patients hospitalized between 1978 and 1989 were reviewed retrospectively. Mean age was 57 years (range: 22 to 84 years). Only one female patient of african origin was a recent immigrant. The disease was pseudo-tumoral in 2 cases and included lymph node fistulae in 4 cases. M. tuberculosis was found at microscopic examination in only 10 patients. The course of the disease was slow and sometimes erratic, even under a well-conducted medical treatment. In one of the female patients, a lymph node fistula appeared after 6 months of chemotherapy, and it is clear that medical treatment must be pursued well beyond the conventional time limits. Several mechanisms are responsible for bronchial tuberculosis: either invasion of the neighbouring bronchi by pulmonary tuberculosis; or lymph node fistula now more frequently due to reactivation of old lesions than to a recent primary infection; or again primary bronchial lesions mimicking bronchial carcinoma.

Adult↗

[Aortobronchial fistula developing in a pseudoaneurysm of the horizontal aorta].

Amongst the rare causes of haemoptysis rupture of the great vessels is always a possibility. An aorto-bronchial fistula is a rare complication of thoracic aneurysms of the aorta. A fistula starting from a false aneurysm is exceptionally rare. Our observation concerns a patient of 61 with previous vascular problems who was discovered to have a mediastinal tumour following dysphonia and haemoptysis. Aortography and surgical intervention revealed that this was a false aneurysm of the horizontal part of the aorta which had developed a fistula in the bronchus.

Aorta, Thoracic↗