Preventing Adverse Events in Cataract Surgery.
Lawrence E Rabinowitz, Leonid Lamper, Jay M Tendler...
https://pubmed.ncbi.nlm.nih.gov/30059403/Actively Recruiting
Led by University of California, Los Angeles · Updated on 2025-03-19
120
Participants Needed
1
Research Sites
4 weeks
Total Duration
The trial investigates cognitive changes after cataract surgery in elderly patients aged 65 and older. It compares the effects of two sedative drugs, Midazolam and Remimazolam, on cognitive function following surgery. Researchers aim to assess differences in recovery times and cognitive performance using the Montreal Cognitive Assessment MoCA test, which screens for mild cognitive impairment. This study is conducted as a randomized, phase 4 clinical trial. Participants will be randomly assigned to receive either Remimazolam or Midazolam during their cataract surgery under local topical anesthesia. Remimazolam is given as a 1.0mg intravenous dose, while Midazolam doses range from 0.5 to 2mg intravenously, both adjusted to a sedation score between 3 and 4. The study measures cognitive function before surgery, immediately after surgery in the post anesthesia care unit PACU, and the day after surgery during a post-operative visit. Patients will also complete a satisfaction survey about their anesthesia experience at discharge from PACU. Throughout the study, participants undergo MoCA testing at three time points to monitor cognitive changes before surgery, at PACU discharge, and on the first post-operative day. Researchers will also track the length of post-operative hospital stay and assess surgeon and patient satisfaction with anesthesia. The total participation lasts from the day of surgery until the post-operative visit the next day, with careful monitoring of recovery and cognitive outcomes.
CONDITIONS
Remimazolam for Cataract Surgery
Z
Zhuang T Fang, MD
S
Stephanie-Dee Sarovich, BS
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University of California, Los Angeles
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Remimazolam Sedation | Midazolam Sedation |
|---|---|---|
| What it is | Remimazolam is a fast-acting intravenous benzodiazepine sedative, given during cataract surgery and titrated to a moderate sedation level using a standardized sedation score. | Midazolam is an established intravenous benzodiazepine, administered during cataract surgery and titrated to a similar sedation level as remimazolam using the same score. |
| Role in this trial | Evaluated as an alternative sedative to minimize cognitive impairment after cataract surgery in older adults. | Functions as the active comparator for sedation during surgery, commonly used in this setting. |
| Primary use | Used as a sedative for cataract surgery, given with the intent to reduce risk of sedation-related cognitive impairment. | Serves as the standard sedative option for cataract surgery, with well-known use and effects. |
| How it is given | Titrated intravenously with an initial dose of 1.0mg, adjusted to reach moderate sedation based on the Observer’s Assessment of Alertness/Sedation Scale. | Given intravenously with an initial dose between 0.5–2mg, titrated to the same moderate sedation target according to the Observer’s Assessment of Alertness/Sedation Scale. |
| Level of supporting evidence | Ongoing randomized clinical trial; published studies suggest remimazolam can preserve cognitive function better than other sedatives in some short procedures among older adults. | Midazolam is supported by extensive literature and clinical use for procedural sedation in cataract surgery. Some evidence links its use in older adults to postoperative cognitive impairment. |
| Important limitations | Efficacy and safety in cataract surgery among older adults is still under investigation; most supporting data comes from other short procedures, not cataract surgery specifically. | May be associated with greater risk for postoperative cognitive impairment in some older patients. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 screening and enrollment visit (in-person)
Duration - Day of surgery
Participants receive sedation with either Remimazolam or Midazolam during their cataract surgery under local topical anesthesia.
1 surgery visit (in-person)
Duration - Until post-operative day 1
Participants complete cognitive assessments and satisfaction ratings in the recovery room after surgery and during a follow-up visit the next day.
2 visits (1 in recovery room and 1 post-operative clinic visit)
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/2286697/University of California, Los Angeles
Lead Sponsor