Case Series: Pediatric Shunt Tunnel Catheter Infection.

Shunt infections are common pediatric neurosurgical cases with high morbidity that almost always requires surgical removal of the shunt, external ventricular drain placement, and delayed shunt replacement. Tunnel infections are well-described clinical entities occurring with indwelling catheters, whereby the indwelling tunnel portion of a line becomes externally infected with a sterile central lumen. These infections are typically treated with line replacement or antibiotics depending on clinical circumstances.

Retreatment of vestibular schwannomas with Gamma Knife surgery.

Object: The response rate of vestibular schwannomas (VSs) to radiosurgery has reached the 97% level in several published series. When failure rarely occurs, some controversy has existed as to whether the tumor has to be resected or can be safely retreated with radiosurgery. The authors retrospectively studied the outcome of retreating 11 patients with Gamma Knife surgery (GKS).

Y-chromosome microdeletions and recurrent pregnancy loss.

Objective: To determine the prevalence of Y-chromosome microdeletions in recurrent pregnancy loss (RPL) couples as compared with couples with male factor infertility and fertile couples.

Design: Controlled clinical study.

Setting: Andrology laboratory and RPL clinic.