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Biomedical subjects

A Labhart

Publications and source records attributed to A Labhart.

9 recordsLinked to original sources
PubMed1988

[A fatal course of Nelson syndrome].

An unusually therapy-resistant form of Nelson's syndrome developed in a 23-year-old woman two years after treatment of a pituitary-dependent Cushing's syndrome by bilateral adrenalectomy (1977). Removal of a corticotrophic adenoma by a first transsphenoidal pituitary operation (1979) brought only temporary relief. Two years later, regrowth and apoplexy of the pituitary adenoma led to oculomotor paralysis and had to be treated by a second transsphenoidal operation (1981). A second relapse became manifest two years later. Treatment with bromocriptine relieved the headaches but did not diminish the tumor size. A third pituitary operation (1984) became necessary when neurological signs revealed penetration of the cavernous sinus. The tumor was only partly removed by transsphenoidal surgery. Postoperative deterioration of the patient required emergency craniotomy to check a subarachnoidal hemorrhage and for removal of the remaining tumor. The patient died three days later of pneumococcal meningitis which had developed after the third pituitary operation.

Adrenalectomy↗
PubMed1979

[Rational laboratory diagnosis of thyroid gland function].

The function of the thyroid can today be determined in the serum of the patient by in vitro-methods using isotopes. In borderline cases the TRH test is valuable. Scanning is necessary for the diagnosis of autonomous or toxic adenomas and is useful preoperatively. 131I-uptake, release and scanning are indicated where radioiodine therapy is planned.

Humans↗
PubMed1978

[Male sex hormones and their derivatives. Pathophysiology and therapy].

After a short review of the chemistry, biosynthesis and physiology (regulation of production and secretion, effects) of the male sex hormones, the possible disturbances of the male sex hormones, the possible disturbances of the male sex function are pathophysiologically listed and some instructive diseases, as castration, testicular feminization, Kallmann syndrome, prolactinoma and flour-bag-drawfs, are discussed. Regarding the main topic, influence of general diseases on sex hormones, the implications of the cirrhosis of the liver and the dialysis in kidney disease are listed as examples. Indications and particularly the contraindications and dangers of testosterone and anabolic steroid therapy are discussed.

Adrenal Cortex↗
PubMed1976

[Hirsutism].

Hirsutism (increased masculine-type sexual hair growth) is to be distinguished from hypertrichosis (generalized increase of body hair) and from virilism (organ changes tending towards masculinity) in which marked hormonal changes are alwasy observable. Hirsutism depends on age, race, heredity, hairfolicle sensitivity to testosterone, and on circulating testosterone and its precursors. The main source of testosterone and androstanedione formation is not the adrenal cortex, as previously assumed, but, as catheterization has demonstrated, the ovary. Mild forms can best be treated externally by plucking, shaving or electrolysis. In forms associated with amenorrhea the amenorrhea responds to corticoids but over a prolonged period of treatment the maximum regression of hirsutism is one-third. Good results are obtainable by reverse-sequence therapy with the competitive androgen antagonists cyproterone acetate and ethinyl estradiol (100 mg cyproterone acetate from 5th-14th day of menstrual cycle and 50 mug ethinyl estradiol from 5th-21st day). This therapy is however costly and not without side effects; it should therefore be used only for particularly troublesome cases.

Adrenal Cortex Hormones↗