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Biomedical subjects

L Landa

Publications and source records attributed to L Landa.

At least 55 records · Page 3Linked to original sources
PubMed1977

[Intrahepatic calculosis].

After a short synthesis of the elements characterising intrahepatic calculosis, and evaluation of the five cases considered, the value of cholangiography (both intravenous and instrumental) and of radio-scintiscanning with Bengal Rose marked with I131 in pre-operative diagnosis is stressed. The intra-operative use of choledochoscopy in conjunction with cholangiography is recommended. With regard to treatment, it must ensure removal of the calculi and create an ample biliodigestive communication (papillectomy or, even better, hepaticojejunostomy on excluded Roux loop) in order to prevent recurrences. In order to visualise the intrahepatic branches of the bile ducts, the removal of the hilar plaque is advised, possibly combined with sagittal scissurectomy or mobilisation of the 4th segment. In conclusion it is asserted that correctly performed surgical treatment is the only means of offering permanent cure.

Adult↗
PubMed1975

Plasma gonadotropins after administration of LH-releasing hormone in patients with renal or hepatic failure.

The pituitary gonadotropin response to the administration of synthetic LH-releasing hormone (LH RH) in 10 patients with renal failure and 5 patients with hepatic insufficiency was determined. The basal plasma LH and FSH levels were either normal or slightly elevated in both groups compared with the controls, but after the administration of LHRH, the peak levels (mean +/- SE mIU/ml) of LH (72.0 +/- 16.6) and FSH (18.7 +/- 4.4) in the patients with renal failure, and of LH (61.5 +/- 20.8) and FSH (13.2 +/- 2.8) in patients with hepatic insufficiency, were not significantly different from those in 11 normal controls (LH, 75.6 +/- 12.0; FSH, 12.4 +/- 2.9). However, significant elevations in plasma gonadotropin levels persisted in these patients during the second and third hours after the administration of LHRH. These studies do not resolve the question of whether the prolonged elevation in plasma LH and FSH levels after LHRH administration is due to enhanced secretion, to a diminished rate of metabolic clearance of LHRH, and/or to the gonadotropins, or both. Evidence from this and previous studies suggests that there may be defects in the secretory functions of both the hypothalamus and pituitary gland in some of these patients.

Adult↗