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Ginecología y obstetricia de México
versão impressa ISSN 0300-9041
Resumo
VAZQUEZ-RODRIGUEZ, Juan Gustavo et al. Arterial blood gas parameters in pregnant patients with severe preeclampsia. Ginecol. obstet. Méx. [online]. 2022, vol.90, n.8, pp.639-646. Epub 26-Set-2022. ISSN 0300-9041. https://doi.org/10.24245/gom.v90i8.7796.
OBJECTIVE:
To determine and interpret arterial blood gas values in pregnant patients with severe preeclampsia.
MATERIALS AND METHODS:
study carry out in a series of 30 patients with a pregnancy ≥ 20 weeks and an established diagnosis of SP admitted to the Intensive Care Unit from July 1 to December 31, 2019, in whom arterial blood gases are part of the routine studies upon admission to the ICU. Patients with recurrence of preeclampsia, eclampsia and HELLP syndrome or with metabolic, respiratory, cardiological and renal morbidities affecting arterial blood gas values were excluded. The general data, obstetric condition, clinical laboratory and arterial blood gas values were documented from the clinical records. Statistical analysis: descriptive statistics were used with the statistical package SPSS version 20.
RESULTS:
Thirty patients were studied, with a mean age of mean age 31.6 ± 6.85 years, median parity 1, all with a single product of 33.89±3.43 weeks and residence in Mexico City 31.37 ± 7 years. Arterial blood gas values were: pH 7.41 ± 0.08, PCO2 25.51 ± 6.12 mmHg, PO2 85.24 ± 41.81 mmHg, Hct 33.86 ± 7.51%, HCO3- 16.95 ± 5.13 mmol/L, HCO3- std 19.04 ± 2.50 mmol/L, TCO2 16.94 ± 2.51 mmHg, BE ecf -7.72 ± 5.60 mmol/L, BE (B) -7.36 ± 3.07 mmol/L, SO2c% 93 ± 8.29%, THbc 10.64 ± 2.36 g/dL, Aa DO2 49.43 ± 10.98 mmHg, pAO2 140.43 ± 106.93 mmHg, PaO2/PAO2 0.79 ± 0.28 mmHg and Respiratory Index 0.95 ± 2.57.
CONCLUSIONS:
The results correspond to a gasometric pattern of compensated metabolic acidosis.
Palavras-chave : Arterial blood gases; Severe preeclampsia; Metabolic acidosis; High risk pregnancy; Intensive care in obstetrics.