Congenital subglottic cyst: a rare cause for sudden airway compromise in a newborn.

A full-term infant developed stridor, respiratory distress and hypercarbia shortly after birth requiring urgent airway intervention. The patient underwent urgent intubation via rigid bronchoscopy. The diagnosis of congenital subglottic cyst was made.

Inverse correlation between resting motor threshold and corticomotor excitability after static magnetic stimulation of human motor cortex.

Background: High-strength static magnetic field stimulation (SMS) results in a period of reduced corticomotor excitability that may be mediated through a decrease in membrane excitability.

Objective: As resting motor threshold (RMT) is thought to reflect membrane excitability, we hypothesized that SMS may increase RMT and that there would be an inverse relationship between RMT and motor-evoked potential (MEP) amplitude.

Methods: Ten healthy subjects (aged 20-29; 4 females) participated in a double-blinded crossover design comparing MEP amplitude and RMT before and after a 15-min period of SMS or sham stimulation over primary motor cortex (M1).