Leonhard Lang has recalled certain lots of an automatic external defibrillator electrode because the user may not be able to connect it to the defibrillator when a shock is needed due to a compatibility issue, the Food and Drug Administration announced Friday. A delay in delivering electrical therapy to revive a patient in cardiac arrest could result in serious patient injury or death, the agency notes. In a safety notice sent to affected customers Sept. 1, the company recommends informing appropriate staff and securing and destroying any of the unused electrodes. Providers should report any adverse events related to use of the electrode to the FDA's MedWatch program, FDA said.