A comparison of ultrasound-guided and landmark-based approaches to saphenous nerve blockade: a prospective, controlled, blinded, crossover trial.

Background: Blockade of the saphenous nerve is often used for surgeries below the knee. Depending on the approach, success rates vary widely ranging from 33% to 88%. In this prospective volunteer study, we compared 2 ultrasound-guided techniques, the modified vastus medialis and perifemoral saphenous nerve block with a below the knee field block.

Outbreak of acute respiratory disease caused by Mycoplasma pneumoniae on board a deployed U.S. navy ship.

We identified 179 cases of acute respiratory illness including 50 cases of radiographically confirmed pneumonia over the course of 4 months on a deployed U.S. Navy vessel.