Reliability and validity of the Pediatric Intensity Level of Therapy (PILOT) scale: A measure of the use of intracranial pressure–directed therapies
- 1 July 2006
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Critical Care Medicine
- Vol. 34 (7), 1981-1987
- https://doi.org/10.1097/01.ccm.0000220765.22184.ed
Abstract
To test the reliability and validity of the Pediatric Intensity Level of Therapy (PILOT) scale, a novel measure of overall therapeutic effort directed at controlling intracranial pressure (ICP) in the setting of severe (Glasgow Coma Scale of <or= 8) pediatric traumatic brain injury (TBI). Case-control study via retrospective review of medical records. Tertiary-care, university-based children's hospital intensive care unit. Randomly selected patients <or=18 yrs old admitted to the intensive care unit in 2002-2003 with severe TBI (cases: group 1, n = 27), mild-moderate TBI (control: group 2, n = 30), extracranial trauma (control: group 3, n = 29), or nontraumatic illnesses (control: group 4, n = 27). None. A 38-point scale was developed to quantify daily ICP-directed therapeutic effort. All currently recommended therapies are represented. Demographic and physiologic data were collected on all patients. A total of 24 of 27 patients with severe TBI received ICP-directed therapy; three did not because of judgments of futility. No control patients received ICP-directed therapy. The PILOT scale score was assessed for the first 7 days posttrauma or postadmission. Interrater reliability was 0.91 (intraclass correlation coefficient) and intrarater reliability was 0.94. The highest PILOT scale scores were in patients with severe TBI (11.7 +/- 5.6 vs. 1.3 +/- 1.7 vs. 2.0 +/- 2.1 vs. 1.9 +/- 1.8 for groups 1, 2, 3 and 4, respectively [mean +/- sd]; p < .001 by analysis of variance/Bonferroni). Patients with severe TBI who received ICP-directed therapy had higher PILOT scale scores (12.6 +/- 5.3 vs. 5.0 +/- 3.0, p = .001) than those who did not. Pearson's correlation coefficients of mean PILOT scale scores with measures of injury severity, outcome, and ICP were as follows: Glasgow Coma Scales score, -0.73 (p < .001); overall Injury Severity Score, 0.37 (p < .001); Injury Severity Score (head component only), 0.53 (p < .001); 6-month Glasgow Outcome Scale, -0.26 (p = .006); ICP burden (hours per day with ICP above treatment threshold), 0.59 (p = .002); and mean ICP, 0.41 (p = .044). The PILOT scale score can be obtained retrospectively and has good reliability. It can discriminate patients receiving ICP-directed therapy, even among patients with severe TBI, and correlates with measures of injury severity, outcome, and ICP in an expected way. Thus, it seems to be a valid measure of the use of ICP-directed therapy, although prospective, multiple-center validation is recommended.Keywords
This publication has 39 references indexed in Scilit:
- Guidelines for the acute medical management of severe traumatic brain injury in infants, children, and adolescentsPediatric Critical Care Medicine, 2003
- Lack of Effect of Induction of Hypothermia after Acute Brain InjuryThe New England Journal of Medicine, 2001
- Management of Severe Traumatic Brain Injury by Decompressive CraniectomyNeurosurgery, 2000
- Osmotherapy for increased intracranial pressure: Comparison between mannitol and glycerolActa Neurochirurgica, 1997
- The use of moderate therapeutic hypothermia for patients with severe head injuries: a preliminary reportJournal of Neurosurgery, 1993
- A Phase II Study of Moderate Hypothermia in Severe Brain InjuryJournal of Neurotrauma, 1993
- NINDS Traumatic Coma Data Bank: intracranial pressure monitoring methodologyJournal of Neurosurgery, 1991
- Pressure-volume index in head injuryJournal of Neurosurgery, 1987
- ASSESSMENT OF COMA AND IMPAIRED CONSCIOUSNESS: A Practical ScaleThe Lancet, 1974
- Therapeutic intervention scoring systemCritical Care Medicine, 1974