[Myocardial infarction during a treatment combining etoposide and cisplatin].
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Biomedical subjects
Publications and source records attributed to F Patte.
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We demonstrated in a previous study that excessive daytime sleepiness (EDS) in patients who have sleep apnea/hypopnea syndrome (SAHS) and are undergoing continuous positive airway pressure (CPAP) treatment improved differently in two groups of patients: in group I, multiple sleep latency tests (MSLT) were normalized after 50 days of treatment (individual value > 10 minutes), whereas they remained low (individual value < 10 minutes) in group II, with a significant difference between groups. To evaluate the long-term evolution of daytime somnolence under nasal CPAP treatment, five patients from group I and seven patients from group II underwent a new polysomnography and MSLT 4 years after the previous study. Clinical, polysomnographic and MSLT results obtained at baseline before treatment (T1), after the initial 50-day period of CPAP treatment (T2), and after 4 years (T3) were compared. The significant difference in mean MSLT value between the two groups previously observed at T1 and T2 disappeared at T3 (group I: 12.4+/-5.9 minutes; group II: 9.7+/-5.9 minutes). We found that this long-term improvement in excessive daytime somnolence was independent of the initial MSLT value, the severity of SAHS, and the initial MSLT changes under nasal CPAP. Long-term MSLT evolution was significantly correlated to CPAP compliance. These results demonstrate that even in the absence of a significant increase in MSLT at the beginning of CPAP treatment, further improvement is still possible several years later, which may encourage the regular, long-term use of nasal CPAP by patients.
BACKGROUND AND OBJECTIVE: Systemic reactions during anesthesia are commonly attributed to muscle relaxants, hypnotics, macromolecular solutions, latex, or parenteral antibiotics. After exclusion of these different components as causes, we were interested in the potential implication of rifamycin in the systemic reaction, which occurred during anesthesia, and in the immunologic mechanism by which it can trigger this reaction. METHODS: We report four cases of systemic reactions occurring after local administration of rifamycin. Three patients needed orthopedic surgery, and the fourth needed a urethrotomy. Severe systemic reactions occurred in all four patients when the surgeon washed the incision area with a rifamycin solution. All patients correctly responded to appropriate treatment and recovered. Skin tests were performed 2 months after the incident with the drugs used during anesthesia, latex, and rifamycin. To assess the relationship with a possible IgE-mediated mechanism, two in vitro tests were concomitantly performed to evaluate the cell reactivity to rifamycin: (1) determination of histamine release from peripheral basophils and (2) platelet cytotoxicity test, which explored the presence on platelets of specific IgE antibodies bound to the low-affinity receptor for IgE. RESULTS: Skin tests were performed with different drugs used during surgery, and results were only positive for rifamycin in the four cases, accompanied in two cases by a systemic reaction. Histamine release from basophils was positive in three of four patients. The platelet cytotoxicity test results were positive in all four cases. CONCLUSION: It appears that rifamycin, used locally during surgery, is apt to trigger severe systemic anaphylactic reactions, which are linked to an IgE-related process. This situation is worth pointing out, especially in patients who undergo repeated orthopedic operations during which, at least in Europe, rifamycin is commonly used for the prevention of local sepsis.
Diurnal hypersomnia was studied in sixteen patients suffering from the sleep apnoea/hypopnoea syndrome (SHAS) Group I, and seventeen snorers Group II. The groups were studied in their basal state then after 51 +/- 14 days of continuous positive pressure (CPP) in Group I with the aid of clinical scores and of multiple latency tests of sleeping episodes (TLME). The patients in Group I presented with increased and pathological diurnal somnolence (TLME = 3.9 +/- 2.45 min) associated with disturbances of oxygen saturation during the course of sleep (a significant reduction of the mean SaO2) and of the pattern of sleep (significant reduction in light slow sleep at the expense of deep slow sleep, with a significant increase in the index of brief arousals). We have found a positive correlation between the initial TLME and the mean SaO2 during the course of sleep (p < 0.05; R = 0.51) without any correlation with other polysomnographic parameters. At the time of the final assessment, the improvement in TLME in the patients of Group I was significant (p < 0.001). However, in a sub-group of patients (BR: n = 7) the TLME were returned to normal using CPP (16.4 +/- 2.21 min) while those in patients in the second sub-group (MR: n = 9) the TLME remained below ten minutes on CPP (6.18 +/- 1.88 min). In the BR subgroup which presented with the most elevated mean initial TLME levels the amplitude of the rise of TLME between the two groups was significantly larger. No initial polysomnographic difference existed between the two sub-groups.(ABSTRACT TRUNCATED AT 250 WORDS)
Neurophysiological repercussions of sleep respiratory disorders (SRDs) are still unclear. It has been shown that SRDs induce disturbance on auditory event-related potentials with a delayed latency of the cognitive P300 potentials. Since the Auditory Brainstem Responses (ABRs) explore the auditory brainstem structures and are independent on cognition, we evaluated the neurological impact of SDRs on central nervous system by ABRs in these patients. Four groups of patients were studied: snorers (S, 17 subjects), sleep apnoea syndrome (SAS, 48 subjects), apnoeic patients with respiratory insufficiency (SAI, 17 patients) and patients with respiratory insufficiency alone (RI, 12 subjects). A standard polysomnographic study was done in each patient with further quantitative analysis of sleep, respiratory events, and oxygen arterial saturation. ABRs were recorded before the study night and interpeak latencies (IPLs) between waves I, III and V were measured. Results were expressed as the mean of each group for all the different parameters. ABR IPL latencies (IPLI-III, IPLIII-V, IPLI-V) of the four groups were within the normal range. However, comparing groups between themselves, there were significant differences (ANOVA) between groups. Longer IPLIII-V and IPLI-V (which explored the central conduction time) were observed in group SAI compared to group SAS. No evidence on the origin of this elongation was found; the level of hypoxia, in particular, was not related to IPL values. These results show that SAS alone do not affect lower brainstem auditory function, in contrast to the association of SAS and RI.
The long-term acceptability of treatment with nasal continuous positive airway pressure (CPAP) was studied prospectively in 44 patients with obstructive sleep apnea syndrome. At 14 months on the average after starting treatment with CPAP, 30 patients (68 percent) were found to be compliant (characterized by use of the apparatus every night throughout the night, for more than 5 h per night). The daily use of nasal CPAP was significantly correlated to the initial apnea/hypopnea index (p = 0.013; r = 0.37), as well as to the percentage of light sleep (p = 0.045; r = 0.30) and slow-wave sleep (p = 0.037; r = -0.31) during the initial polygraphic recording. We found a strong correlation between the daily use of nasal CPAP and the difference in the apnea/hypopnea index (p = 0.025; r = -0.34), the difference in mean oxygen saturation during sleep (p = 0.013; r = 0.38), and the difference in hypersomnia scores (p = 0.006; r = -0.40) obtained before and after treatment by nasal CPAP. Thus, patients used CPAP much more if they had an initial significant clinical handicap and if they were aware of the beneficial effects of CPAP. Under these conditions, patients tended to use the apparatus for the optimal length of time, regardless of the side effects linked to the treatment. This ensured efficacy and the maintenance of good compliance. This study confirms the importance of supervision of the time counter, as well as regular encouragement of patients to use the treatment as long as possible each night, in order to extract a maximum benefit from treatment by nasal CPAP.
A young patient presented with a rare tumour of the mediastinum. The first sign was liquid effusion in the right hemithorax. A major rise in alpha-foeto-protein level to 34,000 ng/ml rapidly led to diagnosis. Histological confirmation was obtained on a surgical biopsy specimen of the lung. Management included primary polychemotherapy followed by complete surgical exeresis. A second post-operative cycle of chemotherapy was given but only led to temporary normalization of alpha-foeto-protein levels and intensive chemotherapy followed by autograft to peripheral stem cells was performed. The vitellin tumour is a primary germ cell tumour usually observed in young men. It originates in extraembryonary primary mesenchymal tissue. Like other germ cell tumours, the diagnosis should be entertained for all tumours of the anterior mediastinum. Tumour markers useful for diagnosis and prognosis are beta-HCG, AFP and CEA. Levels above 500 ng/ml confirm vitellin tumour. Chemotherapy should be instituted rapidly using a BEP protocol (bleomycine, etoposide, cisplatinium) or a PVB protocol (cisplatinium, vinblastin, bleomycine). Using these new drugs and current therapeutic protocols, the rate of complete remission has risen from 13% to 40%.
The authors report a case of a 5 year old child suffering from isolated sacral tuberculosis which presented as sudden and total loss of function of the left leg. The rarity of this bony site, and the recurrence at nine months of a presacral abscess after 9 months of anti-tuberculous treatment in an HIV negative child, vaccinated with BCG, justify the presentation of this observation.
Usher syndrome type I is an autosomal recessive disease characterised by congenital sensorineural deafness, involvement of the vestibular system, and progressive visual loss owing to retinitis pigmentosa. Here we report the association of this disease with bronchiectasis, chronic sinusitis, and reduced nasal mucociliary clearance in two sibs and we suggest Usher syndrome type I could be a primary ciliary disorder.
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We report a case of supraventricular rhythm disorder occurring as a complication of nasal continuous positive airway pressure (CPAP) in sleep apnea syndrome treatment. The investigations showed a preexisting atrial vulnerability revealed by positive pressure ventilation, hemodynamic changes with decreased cardiac output, and a rise in the right atrial pressure. Such complications may develop further studies to evaluate cardiovascular repercussions of nasal CPAP.
The authors report a new case of bilateral chylothorax predominant on the left side, which occurred after movements of body trunk hyperextension in a 52-year old woman without any notable history. The clinical signs revealing the lesion were left thoracic pain and dyspnoea. The effusion had been preceded by a painless and transient left cervical tumefaction. The outcome was favourable after two left pleural draining punctures and rest.
A survey of high school pupils and their attitudes to tobacco was carried out by an anonymous auto questionnaire by 630 pupils at the Alienor Aquitaine Lycee in Poitiers in April 1991. The population study had the following characteristics: 30% were boys, 70% were girls. The mean age was 18 +/- 1.31 years. The proportion of regular smokers (at least one cigarette per day, every day) was 33.9% in boys and 34.9% in girls. The boys had smoked on average 10.7 cigarettes per day for 3.5 years and the girls 9.1 cigarettes per day for 2.9 years. The smoker above all, used light colour tobacco (with filters 98%) but 29% only bought mild cigarettes. On the other hand 55% of the subjects wished to stop smoking. There was no statistically significant relationship between the smoking habits of the pupils and that of their parents on the one hand or on the regular participation in a sport, on the other. However, boarders smoked a lot more than the other pupils. The knowledge of the dangers of smoking were imperfectly understood, in particular, for chronic bronchitis, myocardial infarction, small birth weight of the newborn and cancer of the bladder. The changers of passive smoking were known by 91.6% of the pupils. Finally this study explored the opinion of the lycee pupils as regards to the six measures in the propaganda against smoking and on seven methods of information relating to the dangers of tobacco.
We report a case of inflammatory polyp in a male patient, which was totally obstructing the left main bronchus but could be removed by simple endoscopic traction. The polyp was responsible for an absence of left lung ventilation which in turn produced by reflex an absence of left lung perfusion completely reversible after removal of the polyp. Inflammatory polyp is a rare benign tumour. Its physiopathology is controverted, but it seems to result from local irritation of the bronchial mucosa. Bronchial endoscopy is the essential examination which in most cases make it possible to diagnose and treat the tumour.
Nicotine has a small molecular weight and is absorbed via the mucosa (Guccal or nasal), the pulmonary alveoli and the skin. The phenomenon of autotitration explains how a dependent smoker can unconsciously change his method of smoking to maintain a steady nicotine level. Nicotine leads to a liberation of catecholamines by acting on the nervous system through the intermediary of nicotine receptors. There is increased vigilance and powers of intellectual concentration, an awakening reaction and some anxiolytic and euphoriant effects. From the cardiac stand point there is an increased heart rate and blood pressure, as a result of the sympathomimetic effects. Elimination is via the kidneys as unchanged nicotine, cotinine and 1'-N-oxide of nicotine. Nicotine has an addictive action and is capable of inducing pharmacological dependency, tolerance and withdrawal syndrome in cases of abrupt cessation. A knowledge of the pharmacology of nicotine is important in the process of stopping smoking.
We report the case of a 56 year old female who was admitted to hospital in 1980 for assessment of disseminated nodular pulmonary opacities. The histological examination of a prescalene node biopsy showed features which were compatible with sarcoidosis. No treatment was given. In 1987 a discrete increase in the pulmonary nodules was noted. In 1989 effort dyspnoea occurred and there were pains in the right lower chest and an evening fever. The chest X-ray showed a right sided pleurisy and an increase in the size of the nodules with mediastinal lymphadenopathy. A histological examination of a pulmonary nodule, which was taken at an open lung biopsy enabled the diagnosis of a broncho-alveolar sclerosing intravascular tumour to be established. This is a rare tumour which has a slow evolution occurring most often in middle aged females. In 50% of cases the discovery is fortuitous. Besides patients present with non-specific symptoms. The radiological examination reveals multiple nodular opacities which are diffuse and 0.5 to 1.5 cm in diameter. Currently these tumours do not benefit from any particular therapy.