Midterm results of renal artery stenting.

Percutaneous transluminal angioplasty (PTA) has become the treatment of choice for major renal artery stenosis. Nonetheless, about 10% of renal artery stenoses cannot be properly dilated, and among the patients successfully dilated, 10%-15% had a recurrence. Renal artery stenting was used in 21 patients in cases of insufficient results after PTA: persisting significant stenosis after a primary or several PTAs (15 cases), recurrences (9 cases). Follow-up in all patients was from 12 months to 4 years. Implantation was performed without any problems but the low radioopacity of the stent makes placement difficult in obese patients, particularly for ostial lesions. There was no major complication except occlusion of a segmental branch of the renal artery in 1 case. Radiological controls have shown a preserved patency in all cases except 2, which present restenosis inside the stent by intimal hyperplasia. A significant clinical improvement was obtained in 90% of cases. These results suggest that the endovascular prosthesis represents an important adjunct to renal PTA.

[Comparison of classic and digital pelvimetry for measuring the medial transverse diameter in 50 female patients]. / Comparaison du diamètre transverse médian mesuré par pelvimétrie classique et numérisée chez 50 patientes.

The medial transverse diameter (MTD) has been measured in 50 female patients using both CT and classical pelvimetry. Comparison between these two matched series allows to confirm (p less than 0.001) that the measurement obtained by CT is on the average smaller than that obtained by classical pelvimetry. The relative mean deviation is 3%, the means differ by 4 mm. Management of obstetrical patients taking into account measurements obtained by pelvimetry (Magnin indices) should then be modified depending on the results obtained by this new technique of scanopelvimetry, that will soon become the technique of reference.