Reusing surgical instruments during Mohs micrographic surgery: safe from infection, but not free from risk.

We report several scenarios of compromise in patient safety owing to the re-use of mis-assigned patient's surgical instruments in Mohs micrographic surgery.We discuss the breaks in universal protocols that others may experience in their practices and describe corrective measures that our institutions employed to avoid such future events.There is a lack of publication in the literature on the topic of mis-assigned instrument use in Mohs surgery.

Purse-string suture vs second intention healing: results of a randomized, blind clinical trial.

Importance: Purse-string suture is a closure method that purportedly reduces the scar area compared with second intention healing. Randomized clinical trials comparing these 2 methods appear to be limited or absent.

Objective: To determine if purse-string suture improves cosmetic outcome, healing time, and scar to defect area compared with second intention healing for circular defects on the trunk and extremities.

Ventilatory response to consecutive short hypercapnic challenges in children with obstructive sleep apnea.

In healthy adults, a ventilatory pattern characterized by progressively increased tidal volume (VT), and decreased respiratory rate (RR) accompany repeated short hypercapnic ventilatory challenges, while minute ventilation (VE) remains constant. We hypothesized that the peculiar ventilatory pattern seen in adults would be blunted in children with obstructive sleep apnea syndrome (OSAS) who undergo comparable intermittent or chronic alveolar PCO2 elevation. We measured ventilatory responses to five challenges of 2-min duration (C1-C5) with 5% CO2 in O2, separated by 5-min room-air breathing intervals (R1-R4), in nine children with OSAS and in eight age-, sex-, and body mass index-matched controls.