title: Serum EPO and VEGF levels in patients with sleep-disordered breathing and acute myocardial infarction.
abstract: BACKGROUND
  A high level of endogenous erythropoietin (EPO) may be associated with a smaller infarct size determined by the release of necrosis markers. Sleep-disordered breathing (SDB) is a well-known risk factor for cardiovascular diseases. In contrast, protective effects of SDB have also been described. The potential role of increased levels of EPO and vascular endothelial growth factor (VEGF) is suggested in this process. The study aimed to explore the EPO and VEGF serum levels in SDB and non-SDB patients during the acute phase of myocardial infarction.
  
  
  METHODS
  Thirty-seven patients undergoing successful primary percutaneous coronary intervention in the acute myocardial infarction have been examined for the levels of EPO, VEGF, and troponin I (Tn). In the following, patients had an overnight polysomnography to determine breathing disturbances during sleep.
  
  
  RESULTS
  Both on admission day (day 1) and day 3 of hospitalization, EPO levels showed statistically significant differences in both SDB-positive and SDB-negative patient groups (p = 0.003 and p = 0.018, respectively). There was no statistically significant difference in VEGF levels. No correlation was found between the EPO and Tn levels.
  
  
  CONCLUSIONS
  SDB patients tend to have higher levels of EPO during acute myocardial infarction. No statistically significant differences in VEGF levels were observed.
authors: Department of Otolaryngology, Czerniakowski Hospital, Medical University of Warsaw, 19/25 Stepinska Street, 00-739 Warsaw, Poland. wkukwa@yahoo.pl
authors: Wojciech
authors: W
authors: Kukwa
authors: Renata
authors: R
authors: Glowczynska
authors: Krzysztof J
authors: KJ
authors: Filipiak
authors: Andrzej
authors: A
authors: Kukwa
authors: Grzegorz
authors: G
authors: Opolski
authors: Anna
authors: A
authors: Budaj-Fidecka
authors: Marcin
authors: M
authors: Grabowski
authors: Adam
authors: A
authors: Galazka
authors: Antoni
authors: A
authors: Krzeski
authors: Monika
authors: M
authors: Kuzminska
authors: Anna M
authors: AM
authors: Czarnecka
mesh_terms: D004921:Erythropoietin / Q000097:blood*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood* / Q000628:therapy; D062645:Percutaneous Coronary Intervention; D017286:Polysomnography; D020181:Sleep Apnea, Obstructive / Q000097:blood*; D013223:Statistics as Topic; D019210:Troponin I / Q000097:blood; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
chemical_list: C554270:EPO protein, human; D019210:Troponin I; D042461:Vascular Endothelial Growth Factor A; D004921:Erythropoietin