QT延長症候群
The initial autopsy revealed no signs of trauma and was inconclusive as to cause of death. Martin's ex-husband Kevin J. Martin, a Cape Girardeau, Missouri osteopathic physician, said Martin suffered from Long QT syndrome, a heart condition that could cause an unexpected sudden death, but he had not discussed this with authorities. Martin's mother said that Martin was taking Trazodone for sleep issues. Kevin Martin noted such use needs to be monitored by a physician.