[Exaggerated calciuric response to an acute acid load in patients forming renal calcium stones]. / Réponse calciurique exagérée à une charge acide aiguë chez des patients atteints de lithiase rénale calcique.

Calciuric response to an acute acid load was studied in 13 recurrent calcium stone formers and in 9 control subjects. The evolution of calcium and citrate urinary excretion related to creatinine, of plasma acid base status, of urinary pH, of acid excretion was analysed before and after NH4Cl administration (2 mmol/Kg). Fasting calciuria (expressed as Ca/Cr) was identical in the 2 groups, however the urinary calcium excretion after the acid load was greater in the stone formers group than in the controls (0.378 +/- 0.113 vs 0.253 +/- 0.108 mg/mg). The increase in acid excretion and the decrease in urinary citrate excretion were identical in the 2 groups.

[Correlation of the cause and composition of renal calculi. Value of morphologic and infrared analysis]. / Corrélations entre la cause et la composition des calculs rénaux Intérêt d'une analyse morphologique et infrarouge.

The morphological and infrared spectrophotometric analysis of the urinary stones of 300 patients have been reported in this article. Calculi are classified into six morphological types with their corresponding mineralogical natures. The type I (whewellite or C1) is pure in 18 p. cent of lithiasis, more often present in the center than on the surface, with hyperoxaluria in 81 p. cent. Calculi linked to piridoxilate intake (3 p. cent) have this composition. The type II (weddellite or C2) rarely pure, often associated with calcium phosphate are present in 47 p. cent of lithiasis, more often on the surface than in the center, and linked to hypercalciuria in 70 p. cent. The oxalates (C1 plus C2) are the most frequent components of calculi (75 p. cent). The type IIIa and IIIb (anhydrous and dehydrated uric acid) are pure in 8 p. cent, mixed in 6 p. cent; due to hyperuraturia in 55 p. cent, due to urinary acid pH in 60 p. cent. The type IVa (carbapatite) is pure in 5 p. cent, mixed in 26 p. cent, linked to hypercalciuria in 40 p. cent. The types IVb and IVc (struvite plus carbapatite) are present in 12 p. cent, due to urinary infection (90 p. cent), linked to proteus (70 p. cent). The type V (cystine) is rare, linked to hypercystinuria. The type VIa (1 p. cent) is made of proteins. The type VIb (2 p. cent) is composed of medications (triamterene, glafenine, antrafenine).

[Cell mediated immunity in a mercury nephrotic syndrome (author's transl)]. / Mise en jeu de l'immunité a médiation cellulaire au cours d'un syndrome néphrotique au mercure.

A case of extramembranous glomerulonephritis seen in a patient in contact with mercury diodide is reported. The responsibility of mercury in this occurrence of this nephropathy is confirmed by positive tests exploring cell mediated immunity. The other possible actions of mercury are described: modifications in renal tubular antigen, or in a tissue or serum protein, with antibody production and secondary apparition of immune complexes which deposit in the glomerules.

[Catheterisation of the internal jugular vein for parenteral nutrition (author's transl)]. / Cathétérisme de la veine jugulaire interne pour nutrition parentérale.

The technique consists of surgical exposure of the vein, its isolation by two threads and the introduction of a soft prethoracic exit. This technique avoids the complications inherent in any blind puncture of a large vessel. By virtue of the type of catheter (soft silicone) and the long subcutaneous course. It may be left in place for more than a month.

[Radio-anatomic study of the bronchial arteries (apropos of 30 analyzable preparations]. / Etude radio-anatomique des artères bronchiques (à propos de 30 préparations analysables).

Arteriographic studies of collateral branches of the descending thoracic aorta are made using barium suspension. The descending aorta is then cut off and measured. Confrontations of these two methods give precise details on the origins of bronchial arteries (vertebral level and situation around the circumference of the aorta). In spite of important variations, the vertebral level of origin is around T5 for the right bronchial arteries and around T6 for the left ones. Most of them (right and left) arise on the right.