Binder ZW, O'Brien SE, Boyle TP, Cabral HJ, Pare JR Tricuspid Regurgitant Jet Velocity Point-of-Care Ultrasound Curriculum Development and Validation. POCUS J. 2021 Nov 23;6(2):88-92. doi: 10.24908/pocus.v6i2.15190.
Jone PN, Ivy DD Echocardiography in pediatric pulmonary hypertension. Front Pediatr. 2014 Nov 12;2:124. doi: 10.3389/fped.2014.00124. eCollection 2014.
Jullien T, Valtier B, Hongnat JM, Dubourg O, Bourdarias JP, Jardin F Incidence of tricuspid regurgitation and vena caval backward flow in mechanically ventilated patients. A color Doppler and contrast echocardiographic study. Chest. 1995 Feb;107(2):488-93. doi: 10.1378/chest.107.2.488.
Khandelwal A, Kapoor I, Mahajan C, Prabhakar H Effect of Positive End-Expiratory Pressure on Optic Nerve Sheath Diameter in Pediatric Patients with Traumatic Brain Injury. J Pediatr Neurosci. 2018 Apr-Jun;13(2):165-169. doi: 10.4103/jpn.JPN_112_17.
Persson JN, Kim JS, Good RJ Diagnostic Utility of Point-of-Care Ultrasound in the Pediatric Cardiac Intensive Care Unit. Curr Treat Options Pediatr. 2022;8(3):151-173. doi: 10.1007/s40746-022-00250-1. Epub 2022 Jul 8.
Watkins LA, Dial SP, Koenig SJ, Kurepa DN, Mayo PH The Utility of Point-of-Care Ultrasound in the Pediatric Intensive Care Unit. J Intensive Care Med. 2022 Aug;37(8):1029-1036. doi: 10.1177/08850666211047824. Epub 2021 Oct 9.
Effect of Positive End-Expiratory Pressure on Tricuspid Regurgitant Jet Velocity in Pediatric Patients on Invasive Mechanical Ventilation
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.