Ultrasound-based volumetric evaluation of fluid retention after inguinal hernia repair.

Background: Daily routine has shown that there are differences between the aspirated volumes of subcutaneous liquid retention after inguinal hernia repair and the results of sonographic-based volumetry using the standard rotating ellipsoid formula.

Methods: In 83 patients, subcutaneous fluid retention after Shouldice repair was visualized by ultrasound and calculated as cuboid, cylinder, and rotating ellipsoid, respectively. The results were compared to the aspirated volume.

[Value of subcutaneous drainage in repair of primary inguinal hernia. A prospective randomized study of 100 cases].

Following Shouldice repair of a primary inguinal hernia 50 patients were given subcutaneous Redon drains, while another 50 patients underwent operations without drains in a prospective randomized trial. The amount of postoperative wound secretion in the drainage bottle was added to fluid retention established by sonographic volumetric analysis. The degree of personal impairment was estimated by a visual analogue score.