title: Atrial dissociation in a middle aged patient: a case report.
abstract: Atrial dissociation is characterized by different types of P waves captured in an electrocardiogram, usually seen in critically ill or post-cardiac transplantation patients. Our case demonstrates a 55-year-old man, presenting with chest pain (unstable angina) in the emergency department with transient double-P waves; representing the phenomenon. Our case did not have any of the suggested causes or any known cardiac problems; therefore, with ruling out other differential diagnosis, researches must be done to find another explanation, if repeated.
authors.affiliation: Department of Cardiology, Rasoul-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. shhajsadeghi@aol.com.
authors.forename: Shokoufeh
authors.initials: S
authors.lastname: Hajsadeghi
authors.affiliation: Department of Cardiology, Tehran Arrhythmia Center, Tehran, Iran. Soraii@yahoo.com.
authors.forename: Saeed
authors.initials: S
authors.lastname: Oraii
authors.affiliation: Department of Cardiology, Rasoul-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. r-jafarian@student.tums.ac.ir.
authors.forename: Hassan
authors.initials: H
authors.lastname: Riahi
authors.affiliation: Department of Cardiology, Rasoul-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. h-sezavar@tums.ac.ir.
authors.forename: Sayeyed Hashem
authors.initials: SH
authors.lastname: Sezavar
authors.affiliation: Department of Cardiology, Rasoul-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. ah.ghanooni@gmail.com.
authors.forename: Amir Hossein
authors.initials: AH
authors.lastname: Ghanooni
authors.affiliation: Department of Cardiology, Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran. r-jafarian@student.tums.ac.ir.
authors.forename: Scott Reza
authors.initials: SR
authors.lastname: Jafarian Kerman
authors.affiliation: Department of Medicine, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran. dr.ahmadi.r@yahoo.com.
authors.forename: Roghayeh
authors.initials: R
authors.lastname: Ahmahi
mesh_terms: D000789:Angina, Unstable / Q000503:physiopathology*; D002637:Chest Pain / Q000209:etiology*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D004636:Emergency Service, Hospital; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged