de Jonge RC, Polderman KH, Gemke RJ Central venous catheter use in the pediatric patient: mechanical and infectious complications. Pediatr Crit Care Med. 2005 May;6(3):329-39. doi: 10.1097/01.PCC.0000161074.94315.0A.
He C, Vieira R, Marin JR Utility of Ultrasound Guidance for Central Venous Access in Children. Pediatr Emerg Care. 2017 May;33(5):359-362. doi: 10.1097/PEC.0000000000001124.
Karapinar B, Cura A Complications of central venous catheterization in critically ill children. Pediatr Int. 2007 Oct;49(5):593-9. doi: 10.1111/j.1442-200X.2007.02407.x.
Pearson ML Guideline for prevention of intravascular device-related infections. Part I. Intravascular device-related infections: an overview. The Hospital Infection Control Practices Advisory Committee. Am J Infect Control. 1996 Aug;24(4):262-77. doi: 10
Richards MJ, Edwards JR, Culver DH, Gaynes RP Nosocomial infections in medical intensive care units in the United States. National Nosocomial Infections Surveillance System. Crit Care Med. 1999 May;27(5):887-92. doi: 10.1097/00003246-199905000-00020.
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.
