title: P-wave alternans in a patient with hyponatremia.
abstract: We describe an unusual electrocardiographic (ECG) case of an alternating P-wave configuration that spares other ECG components. Hyponatremia due to chronic indapamide use was proposed as a plausible cause of this ECG phenomenon because its correction led to the recovery of a steady P-wave morphology.
authors.affiliation: Private Cardiology Practice, 14A Ath. Diakou Str., 52100 Kastoria, Greece. Electronic address: gtsiaousis@gmail.com.
authors.forename: Georgios
authors.initials: G
authors.lastname: Tsiaousis
authors.affiliation: Third Department of Cardiology, Hippokrateion Hospital, Aristotle University Medical School, 49 Konstantinoupoleos Str., 54642 Thessaloniki, Greece. Electronic address: fragakis.nikos@googlemail.com.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Fragakis
mesh_terms: D000368:Aged; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006339:Heart Rate; D006801:Humans; D007010:Hyponatremia / Q000503:physiopathology*
keywords: ECG changes; electrolyte disorders; indapamide