Right Renal Biopsy Through Petit's triangle

Retroperitoneoscopic single site renal biopsy surgery: right indications for the right technique

BACKGROUND Laparoendoscopic single-site surgery (LESS) has been developed in an attempt to further reduce the morbidity and scarring associated with laparoscopic surgery. In patients in whom there are indications to perform a laparoscopic renal biopsy, LESS surgery is a valid alternative to mini invasive surgery and is becoming more common. We report our experience on 14 renal biopsy procedures...

Generic spectral properties of right triangle billiards

This article presents a new method to calculate eigenvalues of right triangle billiards. Its efficiency is comparable to the boundary integral method and more recently developed variants. Its advantage is its simplicity and explicitness, which allow new insight into the statistical properties of the spectrum. It is shown how the genus of the invariant surface of the classical billiard flow, det...

Periodic billiard orbits in right triangle

There is an open set of right triangles such that for each irrational triangle in this set (i) periodic billiards orbits are dense in the phase space, (ii) there is a unique nonsingular perpendicular billiard orbit which is not periodic, and (iii) the perpendicular periodic orbits fill the corresponding invariant surface.

Transjugular renal biopsy.

A novel technique to obtain renal biopsy specimens from patients in whom percutaneous renal biopsy is contraindicated is described. After adaptation of equipment used for transjugular liver biopsy, 50 such patients underwent transjugular renal biopsy: specimens of renal tissue were obtained from 44 patients, and glomeruli were found in 38 specimens. No major complications were observed and hist...

Renal Biopsy Interpretation