[Relation between body mass index and bone mineral density in a sample population of Mexican women]. / Relación del índice de masa corporal con la densidad mineral ósea en una población de mujeres mexicanas.

The purpose of this trial is to demonstrate that a women with high body mass index (BMI > or = 28) has greater bone mineral density (BMD) from that with lower BMI. We studied 922 healthy women who met the inclusion criteria. They were classified into four groups according to their BMI (> or = 28 and < 28) and age (> or = 35 and < 35 years). Bone mineral measurement was performed by dual-energy X-ray absorptiometry (DEXA) in the hip and at the lumbar region. BMD in overweight women older than 35 years was significantly higher in comparison with that of women with lower BMI, both in the hip and the lumbar spine. In overweight women younger than 35 years, we found greater BMD in the hip reaching statistical significance, but not at the lumbar spine. We conclude that obesity is associated with greater BMD (4% at the lumbar spine; 11% at the hip) probably due to both greater physical stress and higher estrogen levels.

[Urethral leiomyoma during pregnancy. Report of a case and review of the literature]. / Leiomioma de la uretra durante el embarazo. Informe de un caso y revisión de la literatura.

We present a case of leiomyoma of the urethra diagnosed during pregnancy. The patient a 40 year old woman, gravida II, who presents a mass that depend of the proximal urethra, it was observed in the vaginal introitus, it's growth was progressive after 8th weeks of pregnancy. We realized local excision at 23rd weeks pregnancy. Histopathological examination reported leiomyoma of the urethra. The pregnancy was resolved through cesarean section by fetal indication. Actually the patient is free of symptoms.

[Modified sling operation: institutional experience]. / Operación de cabestrillo modificada: experiencia institucional.

We report the retrospective experience in the treatment of six patients with recurrent or severe stress urinary incontinence or low urethral pressure. They were treated with sling modified procedure with polytetrafluoroethylene (Gore-Tex); in the National Institute of Perinatology (INPer) at 1992-1994. The morbidity was highest, the patients in the post operatory present detrusor instability, voiding problems and tissue reaction to polytetrafluoroethylene. The patients are continent in the actuality. They were observed by 8-32 months. This surgery is easy to make and not required of more experience than the necessary for realizing the cysto-urethropexy with needle, but, the selections criteria must be carefully analyzed.

[Urinary retention secondary to surgical treatment of stress urinary incontinence]. / Retención urinaria secundaria al tratamiento quirúrgico de incontinencia urinaria de esfuerzo.

A retrospective, descriptive study at the National Institute of Perinatology (INPer), was carried out. 401 records of patients with stress urinary incontinence who underwent surgical treatment, were reviewed. The objective of this study was to know the urinary retention rate. Urinary retention was present in 103 of 401 patients (25.68%). In modified Pereyra's procedure it was present in 67 of 195 (34.35%); in modified Burch's procedure, in 25 of 131 (19.08%); in Kelly's procedure in 9 of 70 (12.85%) and in 2 of 5 patients with sling procedure with polytetrafluoroethylene (Goretex). The problem of urinary retention was observed more frequently in vaginal surgery (modified Pereyra procedure and/or sling procedure).