Parturition Clinical Trial
Official title:
Evaluation of Compensatory Reserve in Obstetrical Patients
Using a pulse oximeter, the investigators have developed an algorithm that assesses central volume status. Pregnant women present some unique opportunities for us to investigate the algorithm under different circumstances. The investigators want to specifically investigate an algorithm with women who undergo regional anesthesia such as epidurals, with women who undergo fetal surgery, and with women in labor and giving birth (and the recovery time following delivery). This will help the investigators understand the central volume status changes that women experience in these unique circumstances. The Investigators also want to put the pulse oximeter on the fetal hand when possible during certain maternal fetal interventions. The Investigators would like to examine the algorithm with data from the fetuses.
The Investigators hypothesize that the Compensatory Reserve Index (CRI) algorithm will help to guide fluid management in women undergoing regional anesthesia, giving birth, and/or undergoing maternal fetal intervention surgery. Specific aims: Collect noninvasive physiological waveform data from patients undergoing regional anesthesia and either fetal intervention surgery or labor and delivery at Children's Hospital Colorado in order to: 1. Determine how regional anesthesia influences CRI algorithm calculations 2. Determine if the CRI algorithm is able to detect changes in central volume status associated with fetal surgery. 3. Determine if the CRI algorithm is able to detect changes in central volume status associated with labor and childbirth specifically at the time of delivery, when most women experience some amount of bleeding. 4. Examine CRI associated with induction of regional anesthesia and determine if there is a minimal CRI below which one can expect hypotension and if there is a trend down in CRI following induction of regional anesthesia that could anticipate/predict hypotension. 5. Determine if there is a correlation between fetal heart rate abnormalities and CRI. 6. Examine CRI associated with fetal monitoring. ;
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