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Biomedical subjects

B Eichler

Publications and source records attributed to B Eichler.

14 recordsLinked to original sources
PubMed1992

Pharmacokinetics of vinorelbine in man.

The pharmacokinetics of vinorelbine has been investigated by a new HPLC method in 8 cancer patients receiving 8 weekly doses (30 mg.m-2) administered by brief infusion (15 min). The plasma concentration-time curves showed a tri-exponential decay with a long terminal half-life (44.7 h) and a high volume of distribution (Vz = 75.61.kg-1). The concentrations after the 8th infusion were significantly lower than after the 1st infusion, but without significant modification of CL (1.28 l.h-1.kg-1) or AUC (0.80 mg.l-1.h). The pharmacokinetic parameters exhibited wide interindividual variations. The results are consistent with those of previous RIA studies, although the HPLC method appears to be more specific and more precise.

Aged↗
PubMed1991

[Clear cell tumor of the lung (sugar tumour). Study of a case].

A case of benign clear cell tumor ("sugar tumor") is reported. Light microscopy showed a proliferation of clear cells with a rich blood supply and endocrinoid pattern. Ultrastructurally, cells were loaded with glycogen both free and membrane-bound. The cellular origin of the benign clear cell tumor of the lung is still uncertain.

Adenocarcinoma↗
PubMed1989

[Post-traumatic pulmonary hematomas. Apropos of 2 cases].

Post-traumatic pulmonary hematoma presents clinically as a hemorrhagic collection within a newly-formed cavity in the lung parenchyma. Its frequency is probably underestimated in view of the importance of the associated lesions. The most frequent clinical sign is hemoptysis. The chest radiograph, as well as the CT scan, shows a clearly defined round image. As a rule, there is a favorable outcome with slow resorption over several weeks, with a restoration of the integrity of the pulmonary parenchyma, which justifies simple observation, with an absence of any therapeutic intervention.

Adult↗
PubMed1989

Theophylline toxicity risks and chronic renal failure.

Serum theophylline and metabolites (methyluric acids, mono- and dimethyl xanthines) concentrations from uremic patients, either with end-stage renal failure or on peritoneal dialysis or maintenance hemodialysis, were investigated by HPLC and compared with those obtained in non-uremic subjects. We conclude that in uremic patients serum theophylline metabolites, particularly serum 1,3-dimethyluric acid, are significantly higher than in non-uremic subjects even when serum theophylline is lower. A slight increase in the free fractions of serum theophylline was also observed in these patients. All these findings could explain the toxicity signs noted in some patients with chronic renal failure and treated with very low doses of theophylline.

Adult↗
PubMed1988

[Does extrinsic asthma exist?].

Asthma cannot be triggered exclusively by external causes, even allergy. For it to develop, the subject must have pathological bronchial hyper-reactivity. On the contrary, however, asthma cannot be explained solely by intrinsic causes, metabolic or endocrine. It persists only in those subjects who have bronchial hyper-reactivity. The authors suggest a new definition of asthma, designed to replace the semi-logical definition of Charpin: Asthma is a dyspnoeic bronchospasmodic crisis that is linked with the existence of pathological bronchial hyper-reactivity.

Asthma↗
PubMed1986

[Skin tests in the exploration of perianesthetic complications].

Adverse reactions in anesthesia are more and more frequent. The favoring factors are multiple but the physiopathology of these reactions are not right known: non specific histamine-release, complement activation is anaphylaxis can occur. Skin tests are an very important data for the diagnosis of these accidents. Forty patients and ten healthy subjects were tested with systematic research of a cross-reactivity for curare family; myorelaxants, fluid gelatin, dextran are the tests the most frequently positive. Cross reactivity for curare family is sure and sensibilization by some medicine is possible. Then the behavior of the data is looked at; the research of the favoring factors, the non utilization of some substances and prophylactic treatment are recommended.

Anesthetics↗
PubMed1983

[Secondary cancer of the bronchi. General review apropos of 3 cases].

The authors report 3 cases of endobronchial metastases of visceral carcinomas (kidney, breast, pancreas). With the aid of a review of the 144 cases found in the literature, they analyse the characteristics of this special type of secondary neoplasm and their diagnostic, physiopathological and therapeutic aspects.

Aged↗