Pain — Supplementary Epidural Analgesia in Video-Assisted Thoracic Surgery (VATS) - The SEAVATS Study
Citation(s)
Fernandez MI, Martin-Ucar AE, Lee HD, West KJ, Wyatt R, Waller DA Does a thoracic epidural confer any additional benefit following video-assisted thoracoscopic pleurectomy for primary spontaneous pneumothorax? Eur J Cardiothorac Surg. 2005 Apr;27(4):671-4. doi: 10.1016/j.ejcts.2004.12.045.
Freise H, Van Aken HK Risks and benefits of thoracic epidural anaesthesia. Br J Anaesth. 2011 Dec;107(6):859-68. doi: 10.1093/bja/aer339. Epub 2011 Nov 4.
Kim JA, Kim TH, Yang M, Gwak MS, Kim GS, Kim MJ, Cho HS, Sim WS Is intravenous patient controlled analgesia enough for pain control in patients who underwent thoracoscopy? J Korean Med Sci. 2009 Oct;24(5):930-5. doi: 10.3346/jkms.2009.24.5.930. Epub 2009 Sep 23.
Richardson J, Cheema S Thoracic paravertebral nerve block. Br J Anaesth. 2006 Apr;96(4):537. doi: 10.1093/bja/ael038. No abstract available.
Yie JC, Yang JT, Wu CY, Sun WZ, Cheng YJ Patient-controlled analgesia (PCA) following video-assisted thoracoscopic lobectomy: comparison of epidural PCA and intravenous PCA. Acta Anaesthesiol Taiwan. 2012 Sep;50(3):92-5. doi: 10.1016/j.aat.2012.08.004. Epub 2012 Sep 7.
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.
