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Clinical Trial Summary

The study will compare agreement of invasive blood pressure measurements with non-invasive blood pressure measurements measured with a conical blood pressure and large standard upper arm rectangular cuff in morbidly obese severely hypertensive (systolic blood pressure > 160 mmHg) parturients.


Clinical Trial Description

A morbidly obese [Body Mass Index (BMI) ≥ 40 kg/m2] pregnant woman is at singular risk for all the complications of pregnancy, most notably preeclampsia (PE). Furthermore a woman who is already chronically hypertensive is likely to develop superimposed PE . Uncontrolled systolic hypertension in pregnancy prompts placental abruption, hemorrhagic stroke, and systolic or diastolic heart failure. Accurate blood pressure measurement is therefore a prerequisite to controlling dangerously high systolic blood pressure (SBP) to enable labor and delivery to be conducted safely in association with PE. Precise SBP measurement is also a precondition for clinically testing hypotheses concerning the existence of druggable targets that will allow prolongation of pregnancy in the face of severe PE and /or intra-uterine growth restriction (IUGR) remote from term.

Oscillometric noninvasive blood pressure (NIBP) measurement is the customary standard blood pressure monitoring method most often used in the labor suite and obstetric operating room today. For this purpose a rectangular, cylindrical blood pressure (BP) cuff placed on the upper arm is connected to an oscillometric blood pressure device. Yet inaccuracies related to the fact that oscillometric NIBP devices under-read high SBP relative to IBP measurements have been recognized as a potential source of maternal morbidity for years.

The study will compare IBP readings obtained from morbidly obese, severely hypertensive (SBP > 160 mm Hg) parturients with NIBP consecutively measured with new innovative conical Ultracheck Curve BP cuffs and large standard upper arm rectangular cylindrical BP cuffs. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03222414
Study type Interventional
Source Vanderbilt University Medical Center
Contact
Status Terminated
Phase N/A
Start date May 1, 2015
Completion date January 18, 2016

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