Using a new anesthesia system to improve halogenated anesthetic delivery
Accuracy of the MAAS Method (Minimal-flow Auto-control Anesthesia System) for the Administration of Desflurane and Sevoflurane in the Anesthetic Maintenance Phase. Prospective and Paired Observational Study.
This study is testing a new anesthesia system to see if it can deliver certain anesthetics more accurately and safely during surgery while using less gas.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 20 (estimated) |
| Ages | 18 Years to 99 Years |
| Sex | All |
| Sponsor | Fundación Pública Andaluza para la gestión de la Investigación en Sevilla Academic / other |
| Locations | 1 site (Sevilla) |
| Trial ID | NCT05511610 on ClinicalTrials.gov |
What this trial studies
This study evaluates the MAAS (Minimal-flow Autocontrol Anesthesia System) method for administering halogenated anesthetics like sevoflurane and desflurane during surgery. It aims to accurately estimate and maintain the target concentration of these anesthetics in the patient's system while minimizing environmental impact. The researchers will assess the number of adjustments needed for the anesthetic vaporizers and analyze the time taken to reach the target concentration, as well as the overall consumption of anesthetic gases. This approach seeks to enhance the efficiency and safety of anesthesia delivery in surgical settings.
Who should consider this trial
Good fit: Ideal candidates are adult patients scheduled for robotic urological, coloproctological, or gynecological surgeries.
Not a fit: Patients with severe respiratory or cardiac conditions, or those with a high body mass index, may not benefit from this study.
Why it matters
Potential benefit: If successful, this method could lead to more precise anesthesia management and reduced environmental impact from anesthetic gases.
How similar studies have performed: While the approach of minimizing anesthetic gas emissions is gaining attention, this specific method is relatively novel and has not been extensively tested in prior studies.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult subjects (≥ 18 years) scheduled for robotic urological, coloproctological or gynecological surgery in the investigators´ institution * Written informed consent Exclusion Criteria: * Participation in another interventional study * Participants unable to understand the information contained in the informed consent * American Society of Anesthesiologists (ASA) classification grade = IV * Patient in dialysis * Chronic obstructive pulmonary disease (COPD) grade Global Initiative for Chronic Obstructive Lung Disease(GOLD) \> 2 * Functional vital capacity \< 60% or \> 120% of the predicted * Body mass index (BMI) \> 35 kg/m2 * New York Heart Association (NYHA) functional class ≥ 3 * Clinically suspected heart failure * Diagnosis or suspicion of intracranial hypertension * Presence of pneumothorax or giant bullae on preoperative imaging tests * Use of Continuous Positive Airway Pressure (CPAP).
Where this trial is running
Sevilla
- Hospital Universitario Virgen del Rocío — Sevilla, Spain (Recruiting)
Study contacts
- Principal investigator: Manuel de la Matta, PhD — Hospitales Universitarios Virgen del Rocío
- Study coordinator: Manuel de la Matta, PhD
- Email: mdlmatta@hotmail.com
- Phone: 0034 647 49 33 62
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.