Isolated vocal akathisia-Does it exist?

An 81 years old Jewish-Iranian lady, with a psychiatric history of postpartum depression in her twenties and a previous hospitalization due to a depressive episode accompanied by suicidal thoughts and a history of hearing loss and COPD, was hospitalized in the psychogeriatric department of our Mental Health Center due to repetitive incoherent sounds she was uttering for the past month, which increased in intensity and caused suicidal thoughts.