Abstract

CASTRO, Alejandro; BARRIGA, Adriana Paola  and  PERDOMO, Omar. Measurement of myocardial oxygen consumption in normal postpartum: example of physiological efficiency. Rev Colomb Obstet Ginecol [online]. 2005, vol.56, n.4, pp.288-293. ISSN 0034-7434.

Objective: to determine the myocardial oxygen consumption (MVO₂) in patients during early postpartum period, as a parameter of myocardial efficiency and to compare the results with the MVO₂ values in healthy adult patients from other studies. Methods: MVO₂ was measured on 120 women in early postpartum without any pathology. Training set and test set groups were obtained in a retrospective and prospective manner respectively; subgroups were analyzed according to age, type of delivery and parity. EDOR formula was used for measurement of the MVO₂. The measurements were compared with other studies on healthy patients. Results: the average MVO₂ on postpartum patients of our study was 6.58 ml/min^-1/100 g^-1 of tissue, with a maximum value of 7.33 ml/min^-1/100 g^-1 of tissue. Our study patients had statistically significant lower results of MVO₂ when compared with healthy patients from other studies. There were not statistically significant MVO₂ differences between the age, parity and type of delivery subgroups. Conclusion: myocardial efficiency is evident during the postpartum period, with a high cardiac output associated with a low MVO₂.

Keywords : puerperium; oxygen consumption; myocardium; cardiovascular; physiology; ventricular function; Colombia.

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