Coghlan SF, McDonald PF, Csepregi G Use of alfentanil with propofol for nasotracheal intubation without neuromuscular block. Br J Anaesth. 1993 Jan;70(1):89-91. doi: 10.1093/bja/70.1.89.
Erhan E, Ugur G, Gunusen I, Alper I, Ozyar B Propofol - not thiopental or etomidate - with remifentanil provides adequate intubating conditions in the absence of neuromuscular blockade. Can J Anaesth. 2003 Feb;50(2):108-15. doi: 10.1007/BF03017840.
Grant S, Noble S, Woods A, Murdoch J, Davidson A Assessment of intubating conditions in adults after induction with propofol and varying doses of remifentanil. Br J Anaesth. 1998 Oct;81(4):540-3. doi: 10.1093/bja/81.4.540.
Klemola UM, Mennander S, Saarnivaara L Tracheal intubation without the use of muscle relaxants: remifentanil or alfentanil in combination with propofol. Acta Anaesthesiol Scand. 2000 Apr;44(4):465-9. doi: 10.1034/j.1399-6576.2000.440419.x.
Smith A, Silvestro L, Rodriguez RE, Austin PN Evidence-Based Selection of Sedation Agents for Patients Undergoing Endoscopic Retrograde Cholangiopancreatography. Gastroenterol Nurs. 2016 Jan-Feb;39(1):32-41. doi: 10.1097/SGA.0000000000000195.
Yang JF, Farooq P, Zwilling K, Patel D, Siddiqui AA Efficacy and Safety of Propofol-Mediated Sedation for Outpatient Endoscopic Retrograde Cholangiopancreatography (ERCP). Dig Dis Sci. 2016 Jun;61(6):1686-91. doi: 10.1007/s10620-016-4043-3. Epub 2016 Jan 29. Erratum In: Dig Dis Sci. 2016 Jul;61(7):2146.
Deep Sedation and General Anesthesia for Endoscopic Retrograde Cholangiopancreatography
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.
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.