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Biomedical subjects

J C Kalb

Publications and source records attributed to J C Kalb.

At least 19 recordsLinked to original sources
PubMed1991

[Hypervasopressinism during tuberculous meningitis].

In tuberculous meningitis there is a disturbance of control involving hyponatraemia and increased urinary elimination of antidiuretic hormone resulting in hypersecretion of vasopressin. This inappropriate secretion of antidiuretic hormone should not be confused with the Schwartz-Bartter syndrome, which is reserved for paraneoplastic syndromes. The pathophysiology remains poorly understood but its recognition in cases of lymphocytic meningitis is improved as the correct diagnosis has precise therapeutic implications.

Aged↗
PubMed1990

[Small cell lung carcinoma. Value of the evaluation of extension for the therapeutic strategy].

Small-cell lung carcinoma can be distinguished from other histological types of lung cancer because of its high metastatic potential. Initial staging procedures divide the patients into two main prognostic groups: the so-called "limited" (to the thorax) and the extensive disease patients. Based on the results of a prospective pilot study involving 182 patients and on a review of the literature, the authors discuss the usefulness of initial staging in increasing the number of detectable metastases, assessing tumour burden, evaluating treatment results and identifying prognostic factors. Complete tumour staging at the time of diagnosis appears to be very helpful for a better knowledge of the disease and better therapeutic decisions.

Adrenal Gland Neoplasms↗
PubMed1989

[Cardiotoxicity of 5 fluoro-uracil. Apropos of a case].

The cardiotoxicity of 5 fluoro-uracil is currently recognised. We report here a new case in which an effort test and a Methergin test were carried out in the hours following the episode and at a later date. With normal coronary arteriography the evidence is in favour of coronary artery spasm which is the usual mechanism for this type of toxicity.

Coronary Vasospasm↗
PubMed1985

[Therapeutic importance and tolerance of coated 50 mg Vectarion tablets (almitrine bismesylate) at a dosage of 100 mg/day. Study of blood gas, clinical and biological results after a year of long-term treatment].

The objectives of this study, in which Almitrine bismesylate was administered for one year in chronic bronchitics with obstructive hypoxia, were to assess its clinical and gasometric efficacy and its clinical, laboratory, spirometric and electrocardiac acceptability. The blood gas results show a significant rise in PaO2 (p less than 0.001) rising by 5.5 mmHg after 6 months (T6) and by 6.0 mmHg after 12 months (T12) in comparison with the value at the study's onset. The PaCO2 fell by 3.3 mmHg at T6 and 2.7 mmHg at T12 (p less than 0.001). The dyspnoea of the patient, scored by the doctor on a scale of severity from 0 to 5 was situated on a mean of 3.3 points at the beginning of the study. It was significantly reduced by 0.8 points at T6 and by 0.9 points at T12 (p less than 0.001). The percentage of patients hospitalised during the course of the study fell significantly in comparison with the previous year, from 68% to 49% (p less than 0.001). The improvement in clinical status and in blood gases bore no relation to changes in respiratory function. The clinical acceptability of the product was good; few side effects were observed and the respiratory, digestive and neurological problems were often pre-existing. They only led to cessation of treatment in three cases. The electrocardiogram was unchanged. The laboratory investigations was unchanged, with the exception of a fall in red blood cells in relation to the correction of the hypoxaemia in polycythaemic patients.

Almitrine↗
PubMed1985

[Pleural talc administration under thoracoscopy in the treatment of pneumothorax. Study of a series of 109 cases treated over a 3-year period].

There has recently been renewed interest in thoracoscopy. Among its indications we consider talc therapy for a pneumothorax particularly worthy of interest. We report the three year results obtained on a series of 109 pneumothoraces. The indication for thoracoscopy were considered either for a chronic pneumothorax (failure of drainage after 8 days) or for a recurrent pneumothorax. We perform this technique under local anaesthetic with talc therapy given direct vision on the macroscopic lesions encountered. Patients were in hospital for a mean of five days. The results were as follows: Lung appearance. Normal 19%-Dystrophic bullae and giant bullae 41%. blebs: 13%-a visible breach 14%-Diverse anomalies 13%. The immediate failures with talc numbered 6 (5%) each time from the chronic pneumothorax group. They were treated surgically. There were 7 recurrences after talc therapy, 5 were partial recurrences requiring no further treatment and two total relapses were surgically treated. The radiological sequelae appeared minimal. On 5 occasions pleural discomfort hindered the diaphragmatic movement, in the other cases the radiological sequelae consisted of discrete pleural thickening. 42 patients had respiratory function testing and no abnormalities were noted. The failures or recurrences in the talc treated patients were all in the recurrent pneumothorax and were only 13 cases (12%). Thus thoracoscopy is a treatment of choice in the treatment of recurrent pneumothorax, and often replaces surgery. In certain cases (pneumothorax in respiratory failure) it is only possible treatment.

Adolescent↗
PubMed1982

[Comparative value of different respiratory function tests for the early diagnosis of the respiratory distress syndrome (author's transl)].

The diagnostic value of different respiratory function tests in the respiratory distress syndrome was compared in 5 groups of subjects: healthy non-smokers, asymptomatic smokers, patients with bronchitis affecting the large bronchi, asthmatic patients between attacks, and patients with emphysema. Indices measured were the forced expiratory volume per second (FEV1), mean expiratory flow between 25 and 75% of vital capacity (MEF 25-75%), maximum instantaneous flow at 25-50-75% of vital capacity, and peak flow (Vmax 25-50-75%, PF), residual volume, expiratory resistance volume, and the curve of the alveolar plateau of expired nitrogen. The Vmax 50% and the MEF 25-75% appear to be sufficiently sensitive indices of bronchial obstruction in current practice, the MEF 25-75% being simple to measure, and presenting the advantage of not requiring complicated equipment. The Vmax 25% and the respiratory resistance volume present wide inter-individual variations, and this, together with their lack of reproducibility, limit their value in exploratory tests in isolated cases.

Adult↗
PubMed1980

[A case of asthma due to maleic anhydride (author's transl)].

On the basis of a case of asthma due to maleic anhydride, a description is given of occupational asthma due to anhydrides, the physiopathology of which is similar to that related to isocyanates. In contrast to the latter, this disorder is not listed amongst occupational diseases, which should not prevent action by the occupational health physician.

Adult↗
PubMed1980

[Pulmonary amyloidosis. Report of a case with 14 year follow-up (author's transl)].

A patient, 37 years old in 1966, presented hemoptysis and an excavated lesion of left upper lobe; there were no acid-fast bacilli in the sputum, but he was considered as having tuberculosis. After one year of treatment, the lesion had progressed and was removed surgically; pathologic diagnosis was silicosis. During the following years, three excavated lesions developed in the controlateral lung. When seen in 1979, the patient had consolidation of the whole right upper lobe and an excavated mass of right lower lobe. Amyloidosis was suggested; the pathologic sections of 1967 were reviewed and confirmed amyloidosis.

Adult↗