A device for the monitoring of the success of spinal anesthesia with at least one electronic temperature sensor for measuring the skin surface temperature within at least one dermatome of a patient, an electronic evaluation device, which is connected with the at least one temperature sensor and is designed such that it monitors the measurement signal delivered by the at least one temperature sensor to determine whether the skin surface temperature increases by approximately 2 to 3° C, and a display device that displays the result of the evaluation by the electronic evaluation device optically and/or acoustically.
