Evaluation of Regional Distribution of Ventilation During Labor With or

Status Completed

Clinical Trial Summary

With an efficient epidural analgesia the physiological effects of pain are disabled during labor. Pain may cause an increase of minute volume, oxygen consumption and a decrease of paCO2 (Arterial CO2 pressure). The study will evaluate the lung function before and after labor with and without epidural analgesia. With more efficient breathing, the occurence of atelectasis should be reduced; this effect will be investigated in these settings for the first time with the electrical impedance tomography, which is a completely non-invasive measure.

Clinical Trial Description

The bedside efficacy of the electrical impedance tomography (EIT) in intensive care settings during mechanical ventilation is known. However, no studies demonstrate its utility during epidural analgesia for labor.

The purpose of this study is to evaluate lung function and atelectasis in pregnant women with or without epidural analgesia, during labor and after delivery.

Only adult consenting patients ASA I & ASA II (American Society of Anaesthesiologists) are included in the study. According to institutional protocols lumbal epidural catheter is inserted and tested at the start of the labor, while patients' parameters are monitored.

Refusal to epidural analgesia, technical difficulties to insert the epidural catheter or any medical contraindication will result in inclusion of these patients in the control group.

Measurement with EIT is not invasive and harmful neither for the mother nor for the child.

It consists of putting a belt around the chest; this belt is linked to a monitor which measures the impedance of the different lung regions.

Electrical impedance measurements will be done for short periods of maximum 5 min. each as follows:

1. Placement before injection of local anesthetics through the epidural catheter in the study goup; in the control subset placement of the belt will be done when an epidural anesthetic would have been considered.

2. 1 hour after placement of the belt

3. 1 hour after delivery

These periods will be compared. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02523755
Study type	Interventional
Source	Universitair Ziekenhuis Brussel
Contact
Status	Completed
Phase	Phase 4
Start date	September 2015
Completion date	December 2016

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Evaluation of Regional Distribution of Ventilation During Labor With or Without Epidural Analgesia

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms