ED50 of Cis-atracurium for Laryngeal Mask Incubation in General Anesthesia (NCT03668262) | Clinical Trial Compass
CompletedNot Applicable
ED50 of Cis-atracurium for Laryngeal Mask Incubation in General Anesthesia
China35 participantsStarted 2018-09-15
Plain-language summary
1. The muscle relaxants can improve the conditions of laryngeal mask incubation and reduce the related complications (such as laryngeal spasm and postoperative throat pain)
2. The dosages of muscle relaxants used in various researches vary greatly.
3. We are planning use the most classical method for determining the ED50 or half effective concentration of cis-atracurium using sequential method, which is also called " up and down method" and " ladder method".
Who can participate
Age range
25 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. ASA Ⅱ\~Ⅲlevel;
. BMI18.5-30；
. Those who intend to undergo short urological surgery ( operation time \< 1h );
. Age 25\~75 years
. Estimated amount of bleeding \< 5ml / kg.
Exclusion criteria
. Neuromuscular diseases or metabolic diseases;
. Preoperative complicated with water and electrolytes disorders ( such as hypokalemia and hypocalcemia );
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
. Serious hepatic and renal insufficiency and serious heart and lung diseases;
. Predictable difficult airway;
. Take drugs ( such as aminoglycoside, polymyxin, phenytoin sodium, carbamazepine, etc. ) that affect the nerve-muscle transmission function or the efficacy of muscle relaxants before surgery;