Gas analysis using Raman spectroscopy demonstrates the presence of intraperitoneal air (nitrogen and oxygen) in a cohort of children undergoing pediatric laparoscopic surgery.

Clinically significant gas embolism during laparoscopy is a rare but potentially catastrophic event. Case reports suggest that air, in addition to the insufflation gas, may be present. We studied the effects of equipment design and flushing techniques on the composition of gas present under experimental and routine pediatric surgical conditions.

Polyps in continent catheterizable bladder channels.

Objective: We describe our experience with polyps encountered in bladder continent catheterizable channels.

Material And Methods: An IRB-approved retrospective study was conducted on all patients at Children's Hospital of Wisconsin with continent catheterizable channels managed by a single physician over a 16-year time period.

Results: Fifty-five patients were identified with bladder channels.

Late abscess formation following indirect hernia repair utilizing silk suture.

Inguinal hernia repair is the most common operation performed by pediatric surgeons. The critical portion of the operation is high ligation of the hernia sac, which is classically performed with silk suture. This foreign body has the potential to serve as a nidus for latent infection/rejection that may result in an abscess long after the operation.

Surgical management of urolithiasis.

Pediatric patients with urolithiasis present unique challenges. Interventional techniques developed for adult patients have been adopted and adapted to facilitate effective and safe treatment in this population. Management must be stratified and individualized, taking into account the many factors described in this article.

Urologic problems of the neonate.

Maternal sonography is integrated into routine prenatal care, and numerous fetal anomalies are detected, with genitourinary anomalies the most common. This has profoundly influenced the presentation and natural history of neonatal urologic problems. This article is divided into two sections.