Anesthesia, Caudal — Use of Caudal Anesthesia Supplemented With Morphine in Children Undergoing Renal Surgery
Citation(s)
Cesur M, Alici HA, Erdem AF, Yapanoglu T, Silbir F Effects of reduction of the caudal morphine dose in paediatric circumcision on quality of postoperative analgesia and morphine-related side-effects. Anaesth Intensive Care. 2007 Oct;35(5):743-7.
Fernandes ML, Pires KC, Tibúrcio MA, Gomez RS Caudal bupivacaine supplemented with morphine or clonidine, or supplemented with morphine plus clonidine in children undergoing infra-umbilical urological and genital procedures: a prospective, randomized and double-blind study. J Anesth. 2012 Apr;26(2):213-8. doi: 10.1007/s00540-011-1297-y. Epub 2011 Dec 10.
Mayhew JF, Brodsky RC, Blakey D, Petersen W Low-dose caudal morphine for postoperative analgesia in infants and children: a report of 500 cases. J Clin Anesth. 1995 Dec;7(8):640-2.
Singh R, Kumar N, Singh P Randomized controlled trial comparing morphine or clonidine with bupivacaine for caudal analgesia in children undergoing upper abdominal surgery. Br J Anaesth. 2011 Jan;106(1):96-100. doi: 10.1093/bja/aeq274. Epub 2010 Oct 14.
Use of Caudal Anesthesia Supplemented With Morphine in Children Undergoing Renal Surgery - Prospective Study
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
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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.