Central Arterial Pressure Changes With Use of Regional Anesthesia in Obstetric Patients

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02933541

Enrollment

Registered

2016-10-14

Start date

2016-09-30

Completion date

2023-10-19

Last updated

2024-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Central Blood Pressures

Brief summary

Plan to monitor central arterial pressure in women who are undergoing spinal anesthesia for cesarean delivery or epidural anesthesia for vaginal delivery.

Detailed description

Subjects will be screened as they are admitted to the maternity care floor (5th floor St. Mary's Hospital). Subjects will be approached if they are desiring regional anesthesia. The subject will have an additional blood pressure cuff placed on the arm that anesthesia is not using for their blood pressure cuff. Central arterial pressure will be measured from the cuff: * Prior to regional anesthesia placement * Every 15 minutes for 1 hour * Every 30 minutes for 2 hours Routine sphygmomanometer measurements will also completed at the above times. These are all study procedures. Anesthesia will use their usual protocol for blood pressure monitoring and management during placement of, and after the procedure. No changes in patient management will be made based upon the central arterial pressure as the guidelines were developed with routine brachial pressure.

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

14 Years to 50 Years

Healthy volunteers

Yes

Inclusion criteria

* Singleton pregnancy * Planned regional anesthesia

Exclusion criteria

* Multiple pregnancy * Emergent cesarean delivery * Irregular heart rhythms or arrhythmias * Peripheral arterial disease, leg artery disease * Reynaud's phenomena * Intense cold/hypothermia * If there is a wound at location of where central arterial cuff would be placed or tonometer for carotid assessment * Severe tachycardia (\>120) * Greater than 1st degree heart block * Congestive heart failure or heart disease * Inability to adequately monitor BP * Use of magnesium sulfate

Design outcomes

Primary

Measure	Time frame	Description
Amount of change in central arterial pressure in obesity.	3 hours	To determine if women who are obese undergo a larger change in their central arterial pressure than is seen by routine brachial cuff assessment, and if this effect is dependent on the level of obesity.

Countries

United States

Outcome results