Cause of death determined for teen who died after visiting Grayslake dental office

A Spring Grove girl’s who died after a dental visit in July suffered from complications of a dental extraction surgery, the Cook County medical examiner’s office has determined.

The cause of death has been listed by the medical examiner as “complications of dental extraction surgery under sedation,” with “ARID1B gene mutation and multiple neurologic abnormalities” cited as contributing factors.

Sophie Farmer, 17, died July 24, after an unspecified incident the Northern Lakes Oral Surgery and Dental Implant Center in Grayslake.

The Grayslake Fire Protection District was called for an unresponsive patient and took her to a hospital, according to reports. Farmer was pronounced dead at Advocate Children’s Hospital in Park Ridge, according to Cook County records.

The manner of death was listed as natural, according to information released by the medical examiner.

According to the Foundation for ARID1B Research, individuals with the gene mutation “typically have intellectual disability of variable degree, and may also have autistic features, seizures, delays or (near) absence of speech, as well as daily living and motor impairments.” The foundation also notes not everyone with the mutation exhibit the same characteristics and the mutation may remain undiagnosed without genetic testing.