title: Comparison of hemodynamic, biochemical and hematological parameters of healthy pregnant women in the third trimester of pregnancy and the active labor phase.
abstract: BACKGROUND
  Pregnancy is accompanied by several hemodynamic, biochemical and hematological changes which revert to normal values after labor. The mean values of these parameters have been reported for developed countries, but not for Mexican women. Furthermore, labor constitutes a stress situation, in which these factors may be altered. It is known that serologic increase of heat shock protein (Hsp) 70 is associated with abnormal pregnancies, presenting very low level in normal pregnant women. Nevertheless, there are no studies where these measurements are compared in healthy pregnant women at their third trimester of pregnancy (3TP) and the active labor phase (ActLP).
  
  
  METHODS
  Seventy five healthy Mexican pregnant women were included. Hemodynamic, biochemical and hematological parameters were obtained in all cases, and serum Hsp70 levels were measured in a sample of 15 women at 3TP and at ActLP.
  
  
  RESULTS
  Significant differences were found in most analysis performed and in Hsp70 concentration at 3TP as compared to ActLP, however all were within normal range in both conditions, supporting that only in pathological pregnancies Hsp70 is drastically increased.
  
  
  CONCLUSIONS
  Results obtained indicate that 3TP and ActLP have clinical similarities in normal pregnancies, therefore if abnormalities are found during 3TP, precautions should be taken before ActLP.
authors.affiliation: Instituto de Oftalmología Fundación Conde de Valenciana, Chimalpopoca 14 Colonia Obrera, CP 06800 DF, México.
authors.forename: Fernando
authors.initials: F
authors.lastname: Rodríguez-Dennen
authors.forename: Joel
authors.initials: J
authors.lastname: Martínez-Ocaña
authors.forename: Simón
authors.initials: S
authors.lastname: Kawa-Karasik
authors.forename: Luis
authors.initials: L
authors.lastname: Villanueva-Egan
authors.forename: Norberto
authors.initials: N
authors.lastname: Reyes-Paredes
authors.forename: Ana
authors.initials: A
authors.lastname: Flisser
authors.forename: Angélica
authors.initials: A
authors.lastname: Olivo-Díaz
mesh_terms: D000293:Adolescent; D000328:Adult; D001772:Blood Cell Count; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000502:physiology; D001806:Blood Urea Nitrogen; D003404:Creatinine / Q000097:blood; D005260:Female; D018840:HSP70 Heat-Shock Proteins / Q000378:metabolism; D006339:Heart Rate / Q000502:physiology; D006340:Heart Rate, Fetal / Q000502:physiology; D006400:Hematocrit; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007743:Labor, Obstetric / Q000378:metabolism / Q000502:physiology*; D008800:Mexico; D011247:Pregnancy / Q000378:metabolism* / Q000502:physiology*; D011263:Pregnancy Trimester, Third / Q000378:metabolism / Q000502:physiology*; D056152:Respiratory Rate / Q000502:physiology; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D018840:HSP70 Heat-Shock Proteins; D006454:Hemoglobins; D003404:Creatinine