[Primary hyperparathyroidism: follow-up of the surgically treated patient].

After several remarks on the etiopathogenesis of primary hyperparathyroidism the Authors emphasise the importance of follow-up in operated patients. The evaluation begins right after removal of the lesion in the intraoperative phase, in order to evaluate the validity of the intervention and continues with evaluation of mineral homeostasis, disease itself and function of target structures. In addition to possible hypocalcemic crises, special attention should be placed on possible disease recurrence, and the study of all involved parts such as bones, kidneys, pancreas, digestive apparatus as well as the psychological aspects.

[Neuroendocrine tumors of the pancreas].

Neuroendocrine tumours are rare and often include insulinoma, gastrinoma and other low frequency tumours that secrete gastrointestinal hormones. Their preoperative localization, despite continuous medical advances, is extremely difficult but helpful in guiding the surgeon towards a proper form of treatment. After presenting their cases, the authors conclude that the treatment of choice for these tumours is surgery due to their anatomopathological features (benign, scarcely malign or invasive, slow growth).

[Primary hyperparathyroidism].

Primary hyperparathyroidism is a hormonal disease that is more and more frequent and is often manifested exclusively by an increase in calcium levels in the serum. After examining the main anatomopathological and clinical characteristics of the disease, the authors present their experience in its diagnosis and surgical treatment. They suggest that cervical exploration with removal of the adenomas and hyperplastic glands in both asymptomatic and highly symptomatic patients is strongly advised.

[Changes in serum levels of folic acid after total gastrectomy].

The Authors, in consideration that Folic Acid is assimilated in the upper alimentary tract, effected a comparative study between its seric levels in normal patients and in patients submitted to gastrectomy for gastric cancer, at different times from the operation. In the patients of the first group, Folic Acid levels were not correlated with sex, but to age, decreasing with the increasing of it. In gastrectomized patients, serum levels, also if acceptable, were always lower than in control cases, and gradually decreasing with the increasing of the age.

[Alpha-glucosidase and alanine-amino-peptidase in the early diagnosis of renal failure in obstructive jaundice].

Renal failure is a serious complication of obstructive jaundice. Early diagnosis and prevention of spontaneous evolution of the disease can improve prognosis, otherwise very poor in many cases. The Authors, on the basis of experimental researches from literature, expose their clinical experience about the validity of the determination of Alpha-Glucosidase and Alanine-Amino-Peptidase for early diagnosis and differentiation between organic or functional forms of renal failure.