Dur S, Caglar S, Yildiz NU, Dogan P, Guney Varal I The effect of Yakson and Gentle Human Touch methods on pain and physiological parameters in preterm infants during heel lancing. Intensive Crit Care Nurs. 2020 Dec;61:102886. doi: 10.1016/j.iccn.2020.102
Im H, Kim E Effect of Yakson and Gentle Human Touch versus usual care on urine stress hormones and behaviors in preterm infants: a quasi-experimental study. Int J Nurs Stud. 2009 Apr;46(4):450-8. doi: 10.1016/j.ijnurstu.2008.01.009. Epub 2008 Mar 18.
Nist MD, Robinson A, Harrison TM, Pickler RH An integrative review of clinician-administered comforting touch interventions and acute stress responses of preterm infants. J Pediatr Nurs. 2022 Nov-Dec;67:e113-e122. doi: 10.1016/j.pedn.2022.08.020. Epub 20
The Effect of Touch Methods on Pain and Physiological Parameters in Preterm Infants During Endotracheal Aspiration
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.