The goal of this clinical trial is to find out if taking a pill (oral sedation) works just as well as getting medicine through a vein (IV sedation) to help older adults feel relaxed during cataract surgery. We are also studying how these two methods affect recovery, especially thinking and memory after surgery, and how satisfied people are with their care. Participants in this study will be randomly assigned to receive either oral sedation (+ IV placebo) or IV sedation (+ oral placebo) before their cataract surgery. They will complete short surveys about their thinking and recovery before and after surgery, and will be contacted by phone after surgery to check on their recovery. The results of this study will help doctors understand if a simple pill can be a safe and effective alternative to IV sedation for cataract surgery.
This clinical trial is designed to compare two common ways of providing sedation during cataract surgery in older adults: oral sedation (a pill) and intravenous (IV) sedation (medicine given through a vein). Cataract surgery is a quick and safe procedure that helps people see better by removing the cloudy lens in their eye. While numbing eye drops are routinely used to prevent pain, many people also receive sedation to feel calm during surgery. In the United States, IV sedation is commonly used and requires close monitoring by an anesthesia team. In other countries, oral sedation is often used instead because it is simpler and less resource-intensive. The goal of this study is to see if oral sedation can provide the same level of safety, comfort, and recovery as IV sedation. Researchers are especially interested in how each type of sedation affects a person's thinking, memory, and overall recovery in the days after surgery. The study also looks at how satisfied participants are with their care, whether they experience side effects, and whether surgeons feel the surgery goes smoothly with each type of sedation. This is a small, pilot study that will enroll 20 adults aged 65 and older who are scheduled for cataract surgery. Participants will be randomly assigned by chance (like flipping a coin) to one of two groups: one group will receive a pill called alprazolam and a harmless IV placebo, while the other group will receive a placebo pill and standard IV sedation with a medication called midazolam. Everyone will still get numbing eye drops and be monitored by an anesthesia team during surgery for safety. Participants will complete simple memory and recovery tests before and after surgery, and follow-up phone calls will check on how they are feeling up to seven days after surgery. By closely monitoring thinking ability, comfort, and safety, this study aims to provide important information about whether oral sedation could be a good option for people undergoing cataract surgery in the United States. The results will help guide future research and inform doctors about the best ways to care for older adults during eye surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
20
Participants will take oral alprazolam 0.5 mg 15 to 90 minutes before surgery to promote relaxation and reduce anxiety. An IV placebo (normal saline) will be administered to maintain blinding.
Participants will receive IV midazolam 1 mg immediately before surgery to promote relaxation and reduce anxiety. An oral placebo pill will be used to maintain blinding.
UCSF Wayne and Gladys Valley Center for Vision, Mission Bay
San Francisco, California, United States
RECRUITINGProportion of participants with cognitive recovery based on the Postoperative Quality of Recovery Scale (PQRS) at multiple time points
Cognitive recovery will be measured using the cognitive domain of the PQRS, a validated questionnaire assessing recovery across several health domains. Recovery is defined by meeting pre-specified criteria for return to baseline cognitive function compared to pre-surgery testing
Time frame: before surgery, immediately after surgery, post-operative day 1, post-operative day 7
Participant satisfaction with sedation experience using the Iowa Satisfaction with Anesthesia Scale (ISAS)
Participants will complete the ISAS to rate satisfaction with their anesthesia experience, including feelings of relaxation, comfort, and recall of surgery
Time frame: immediately after surgery, post-operative day 1, post-operative day 7
Surgeon Satisfaction with Intraoperative Conditions
Measured via post-surgery surgeon questionnaire assessing perceived ease of surgery, patient cooperation, and need for additional sedation
Time frame: Immediately after surgery
Feasibility of Recruitment
Proportion of eligible participants who agree to participate in the trial
Time frame: Throughout enrollment period
Participant Retention After Intervention
Proportion of enrolled participants who complete all postoperative follow-up assessments
Time frame: Up to 7 days post-surgery
Adherence to Sedation Intervention
Proportion of participants who receive their assigned intervention without protocol deviation (defined as receiving the intended oral or IV sedative)
Time frame: Day of surgery
Intervention Fidelity
Proportion of cases where study procedures were delivered as intended, including timing of medication administration and adherence to blinding protocol
Time frame: Day of surgery
Intraoperative Events
Incidence of intraoperative events, including: Participant complaints of pain or discomfort, anxiety or nervousness, requests for additional IV medication, undesirable patient movement, surgeon complaints about sedation adequacy, conversion to general anesthesia
Time frame: During surgery
Incidence of Postoperative Anesthesia-Related Complications
Incidence of adverse events including delirium, nausea, vomiting, dizziness, falls, and unplanned healthcare utilization within 7 days post-surgery
Time frame: Up to 7 days after surgery
Quality of Recovery Post-Surgery
Measured by the Quality of Recovery domain of the PQRS (Postoperative Quality of Recovery Scale), including physical comfort, emotional well-being, and cognitive function compared to baseline
Time frame: Days 1 and 7 after surgery
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