Goiter — Subtotal Versus Total Thyroidectomy for Benign Goiter
Citation(s)
Agarwal G, Aggarwal V Is total thyroidectomy the surgical procedure of choice for benign multinodular goiter? An evidence-based review. World J Surg. 2008 Jul;32(7):1313-24. doi: 10.1007/s00268-008-9579-8. Review.
Barczynski M, Konturek A, Cichon S Randomized clinical trial of visualization versus neuromonitoring of recurrent laryngeal nerves during thyroidectomy. Br J Surg. 2009 Mar;96(3):240-6. doi: 10.1002/bjs.6417.
Moalem J, Suh I, Duh QY Treatment and prevention of recurrence of multinodular goiter: an evidence-based review of the literature. World J Surg. 2008 Jul;32(7):1301-12. doi: 10.1007/s00268-008-9477-0. Review.
Tezelman S, Borucu I, Senyurek Giles Y, Tunca F, Terzioglu T The change in surgical practice from subtotal to near-total or total thyroidectomy in the treatment of patients with benign multinodular goiter. World J Surg. 2009 Mar;33(3):400-5. doi: 10.1007/s00268-008-9808-1.
Wheeler MH Total thyroidectomy for benign thyroid disease. Lancet. 1998 May 23;351(9115):1526-7.
Subtotal Versus Total Thyroidectomy for Benign Thyroid Disease - a Prospective Case-control Surgical Outcome 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.
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.
