Rhomboid Intercostal and Subserratus Plane Block: A Cadaveric and Clinical Evaluation.

Background And Objectives: Fascial plane blocks are rapidly emerging to provide safe, feasible alternatives to epidural analgesia for thoracic and abdominal pain. We define a new option for chest wall and upper abdominal analgesia, termed the rhomboid intercostal and subserratus plane (RISS) block. The RISS tissue plane extends deep to the erector spinae muscle medially and deep to the serratus anterior muscle laterally.

Heating and Cooling Rates With an Esophageal Heat Exchange System.

Background: The Esophageal Cooling Device circulates warm or cool water through an esophageal heat exchanger, but warming and cooling efficacy in patients remains unknown. We therefore determined heat exchange rates during warming and cooling.

Methods: Nineteen patients completed the trial.