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Cataract surgery is routinely performed with anesthesia care, whereas anesthesia care for other elective, low-risk, outpatient procedures is applied more selectively. We hypothesize that sublingual melatonin will provide superior anxiolysis and sedation while maintaining a high safety profile and minimizing hemodynamic disturbances.
Prevalence of anesthesia care during cataract surgery compared with other low-risk procedures; association of anesthesia care with patient, clinician, and health system characteristics; and proportion of patients experiencing a significant anxiety and hemodynamic instability during cataract surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Melatonin Group | Active Comparator | a 6 mg sublingual tablet of melatonin will be administered for all patients at 60 minutes before surgery. |
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| Placebo Group | Placebo Comparator | the participants will be received a visually identical tablet containing inert ingredients at 60 minutes before surgery. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Sublingual Melatonin | Drug | Participants in this group received 3 mg of sublingual melatonin, administered 60 minutes before cataract surgery. The melatonin was given in the form of a rapidly dissolving sublingual tablet to enhance bioavailability and ensure consistent preoperative absorption. The goal of the intervention was to reduce preoperative anxiety, improve sedation level, and stabilize hemodynamic parameters. The melatonin tablets were indistinguishable in appearance from the placebo and were prepared and dispensed by a pharmacy technician not involved in data collection or patient care |
| Measure | Description | Time Frame |
|---|---|---|
| perioperative anxiety | It will be assessed using the Visual Analog Scale (VAS) for anxiety (0-10 cm) upon arrival to the operating room. | at 30 and 60 minutes before procedure, with application of local anesthesia, 15 and 30 minutes after anesthesia. |
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Inclusion Criteria:
• Age ≥ 60 years
Exclusion Criteria:
• Known allergy or hypersensitivity to melatonin
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Neveen A Kohaf, PhD | Contact | +201060383012 | nevenabdo@azhar.edu.eg |
| Name | Affiliation | Role |
|---|---|---|
| Neveen A Kohaf, PhD | Al-Azhar University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Al-Azhar University | Not yet recruiting | Cairo | Egypt | 11865 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | Wahane VD. A comparison of Gabapentin and melatonin for cataract surgery. Journal of Advanced Medical and Dental Sciences Research. 2017;5(8). |
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The data will be available upon reasonable request from the principal investigator.
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| ID | Term |
|---|---|
| D001008 | Anxiety Disorders |
| ID | Term |
|---|---|
| D001523 | Mental Disorders |
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| Sublingual Placebo | Drug | Participants in this group received an identical-appearing sublingual placebo tablet containing inert ingredients, administered 60 minutes before cataract surgery. The placebo was visually indistinguishable from the melatonin tablets and was used to maintain double blinding in the trial. Tablets were prepared by the pharmacy team to ensure concealment and eliminate bias. This group was designed to serve as a control to evaluate the effectiveness of sublingual melatonin on anxiety and sedation levels in elderly patients |
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| Al-Azhar University | Recruiting | Baghdad | Baghdad Governorate | 10011 | Iraq |
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