title: Truths and Lies from the Polysomnography ECG Recording: An Electrophysiologist Perspective.
abstract: Polysomnography remains the gold standard for diagnosis of Sleep Apnea (SA) and evaluation of the apnea/hypopnea index (AHI) which is used as the primary index of SA severity. The electrocardiogram (typically a single lead) obtained during the polysomnographic study is usually used to report the association between SA and cardiac rhythm disturbances. These findings help in guiding medical decisions but they could also represent a source for confusion. Electrophysiologists are frequently consulted to determine whether interventions need to be taken. We present 2 cases where the ECG during a polysomnography study required the intervention of an electrophysiologist to help with management.
authors.affiliation: Cardiac Electrophysiology and Pacing, Kingston General Hospital, Queen's University, ON, Canada K7L 2V7.
authors.forename: Adrian
authors.initials: A
authors.lastname: Baranchuk
authors.forename: Christina
authors.initials: C
authors.lastname: Quinlan
authors.forename: Kevin
authors.initials: K
authors.lastname: Michael
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Simpson
authors.forename: Damian P
authors.initials: DP
authors.lastname: Redfearn
authors.forename: Michael
authors.initials: M
authors.lastname: Fitzpatrick
references.citation: Prog Cardiovasc Dis. 1999 Mar-Apr;41(5):355-66
references.pmid: 10406329
references.citation: Am J Respir Crit Care Med. 2006 Apr 15;173(8):910-6
references.pmid: 16424443
references.citation: Europace. 2008 Jun;10(6):666-7
references.pmid: 18390984
references.citation: J Clin Invest. 1982 Jun;69(6):1286-92
references.pmid: 7085875