Patahk was a Romulan officer assigned to the scout ship Pi. In 2366, Patahk and his co-pilot, Centurion Bochra, became stranded on the Federation planet Galorndon Core following the crash of the Pi. Patahk was severely injured in the crash; however, he was later discovered by the crew of the USS Enterprise-D.
Doctor Beverly Crusher attempted to treat Patahk's injuries; however, she found surgery on Romulans to be more difficult than anticipated, having worked with the assumption that it would be the same as working on a Vulcan. She discovered that because of his exposure to radiation and magnetic fields on the surface of Galorndon Core, his brain waves indicated early neural pathway degeneration. She also discovered that he had cell damage to several vital areas and would require a ribosome infusion. Dr. Crusher discovered that the only compatible match aboard the Enterprise-D was with Lieutenant Worf.