TODD PALOMBO vs. CITY OF COSTA MESA
This case involves a firefighter claiming industrial heart injury under Labor Code § 3212, which presumes such injuries are work-related unless rebutted. The defense argued pre-existing conditions and lifestyle choices caused the applicant's cardiac arrhythmia. However, the medical expert did not definitively state non-work-related factors were the *sole* cause of the heart trouble, failing to overcome the statutory presumption. Therefore, the Workers' Compensation Appeals Board affirmed the finding of industrial injury.