CHICAGO (AP) -- Kids can have heart attacks too, so doctors are warning that when a child reports crushing chest pain, it should be taken very seriously.
A report from Ohio doctors documents nine cases over 11 years in children as young as 12. All but one were boys.
They all lacked common risk factors for heart problems, such as obesity, family history, high blood pressure, unhealthy cholesterol levels and drug abuse.
The doctors say the cause of their heart attacks was most likely a heart spasm that briefly cut off blood supply.
One Ohio 13-year-old who was part of the study takes heart medicine daily and nitroglycerin pills when occasional chest pain returns. He still snowboards, shoots hoops and does other hobbies he enjoyed before the attack.
The report appears in October's issue of the medical journal Pediatrics.