Cataract Surgery — Impact of Non-fasting on Anxiety in Cataract Surgery
Citation(s)
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Maltby JR, Hamilton RC Preoperative fasting guidelines for cataract surgery under regional anaesthesia. Br J Anaesth. 1993 Jul;71(1):167.
Ogino Y, Kakeda T, Nakamura K, Saito S Dehydration enhances pain-evoked activation in the human brain compared with rehydration. Anesth Analg. 2014 Jun;118(6):1317-25. doi: 10.1213/ANE.0b013e3182a9b028.
Seet E, Kumar CM, Eke T, Joshi GP Starving Patients Before Cataract Surgery Under Regional Anesthesia: Needed or Not? Anesth Analg. 2018 Dec;127(6):1448-1451. doi: 10.1213/ANE.0000000000003504.
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Impact of Non-fasting Strategy on Pre-operative Patients' Anxiety in Cataract Surgery Performed Under Topical Anesthesia
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
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Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
