title: Sudden death in Parkinson's disease: a retrospective autopsy study.
abstract: The aim of this paper is to reveal the causes of death and to verify sudden death of Parkinson's disease (PD) in an autopsy study. We reviewed the clinical data and the causes of death in 16 PD patients who had postmortem examinations. Prior to autopsy, nine patients died of known causes: five patients died of aspiration pneumonia, two of myocardial infarction, one of asphyxia, and one of dilated cardiomyopathy. Autopsy confirmed that the putative causes of death were compatible with the pathological ones. The remaining seven patients died suddenly of unknown causes. Autopsy revealed that the causes of death were asphyxia in two patients and perforation of a duodenal ulcer in one patient. Autopsy did not determine the causes of unknown death in the remaining four patients. Consequently, autopsy revealed that eight patients died of swallowing problems such as aspiration pneumonia and asphyxia, four of sudden death, three of cardiac problems, and one of a gastrointestinal problem. Although there was a bias that all patients had a postmortem examination, our study revealed that several PD patients died of sudden death without any satisfactory causes of death determined even by autopsy. Therefore, we propose that a non-negligible number of PD patients die of sudden death.
authors.affiliation: Department of Neurology, Japanese Red Cross Medical Center, Japan; Department of Neurology, Yokohama Rosai Hospital, Japan. Electronic address: hideyukimatsumoto.jp@gmail.com.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Matsumoto
authors.affiliation: Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital, Japan.
authors.forename: Renpei
authors.initials: R
authors.lastname: Sengoku
authors.affiliation: Department of Pathology and Laboratory Medicine, National Center of Neurology and Psychiatry, Japan.
authors.forename: Yuko
authors.initials: Y
authors.lastname: Saito
authors.affiliation: Department of Pathology, Yokohama Rosai Hospital, Japan.
authors.forename: Yukio
authors.initials: Y
authors.lastname: Kakuta
authors.affiliation: Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital, Japan.
authors.forename: Shigeo
authors.initials: S
authors.lastname: Murayama
authors.affiliation: Department of Neurology, Yokohama Rosai Hospital, Japan.
authors.forename: Ichiro
authors.initials: I
authors.lastname: Imafuku
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001344:Autopsy / Q000379:methods; D009202:Cardiomyopathies / Q000209:etiology; D002423:Cause of Death; D003645:Death, Sudden / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications* / Q000175:diagnosis*; D011015:Pneumonia, Aspiration / Q000209:etiology; D012189:Retrospective Studies
keywords: Autopsy; Lewy body disease; Necropsy; Parkinson's disease; Pathology; Sudden death