A prospective evaluation of the clinical presentation of pediatric pelvic fractures.

BACKGROUND: We sought to describe pediatric, blunt trauma patients with pelvic fracture (PF) and to evaluate pelvis examination sensitivity and specificity. METHODS: We conducted a prospective study of blunt trauma patients at a Level I pediatric trauma center. A pediatric emergency medicine physician attempted to diagnose a PF, solely on the basis of the history and pelvis examination. Patients with blunt trauma but no pelvic fracture (NPF) were used as controls. RESULTS: We enrolled 140 patients (16 PF, 124 NPF), and no significant differences were found regarding median age, gender, injury mechanism, acuity, and medical outcome. Approximately 25% of PF patients had iliac-wing fractures; 37%, single pelvic ring; 25%, double pelvic ring; and 13%, acetabular fractures. Eleven patients with PF had an abnormal pelvis examination (69% sensitivity), compared with six NPF patients (95% specificity, negative predictive value 0.91). CONCLUSION: Pediatric patients with PF have low mortality and few complex fractures. The pelvis examination appears to have both high specificity and negative predictive value.

The clinical presentation of pediatric pelvic fractures.

BACKGROUND: Few studies have addressed the presentation and clinical impact of pediatric pelvic fractures. We sought to describe pediatric blunt trauma patients with pelvic fracture (PF) and to evaluate the sensitivity and specificity of physical examination at presentation for diagnosis. METHODS: Retrospective analysis of all PF and control (NPF) patients from our pediatric institution over an 8-year period. RESULTS: A total of 174 patients (88 PF, 86 NPF) were included. Median patient age was 8 years (range, 3 months to 18 years), with 54% males. The most common mechanisms of injury for PF patients were automobile-related accidents (75%). There were 140 patients (87%) who were transported by air or ground medical services. At presentation, approximately 16% of PF patients had a Glasgow Coma score of <15, a mean Revised Trauma Score of 7.49, and a median Injury Severity Score (ISS) of 9. Thirty-one PF patients (35%) had an ISS of >15 indicating severe, multiple injuries. Sixty-eight PF patients (77%) had severe isolated injuries (Abbreviated Injury Scale 1990 value of >3); 11% of PF patients required transfusions, and 2% died. Fifteen PF patients (17% ) had no pelvic ring disruption; 39 (43%) had a single pelvic ring fracture, 22 (2%) had two pelvic ring fractures, 2 (2%) had acetabular fractures, and 10 (11%) had a combination of pelvic fractures. An abnormal physical examination of the pelvis was noted in 81 patients with PF (92% sensitivity, 95% confidence interval [CI] = 0.89-0.95), 15 NPF patients had an abnormal examination (79% specificity, 95% CI = 0.74-0.84). The positive predictive value of the pelvis examination was 0.84, and the negative predictive value was 0.89. The most common abnormal pelvis examination finding was pelvic tenderness in 65 PF patients (73%). A total of seven PF patients had a normal examination of the pelvis; four had a depressed level of consciousness (defined as GCS <15), and six patients had a distracting injury. CONCLUSIONS: Pediatric blunt trauma patients with pelvic fracture represent a severely injured population but generally have lower transfusion rates and mortality than noted in adult studies. The pelvis examination appears to be sensitive and specific in this retrospective study. However, an altered level of consciousness and/or distracting injuries may affect examination sensitivity and specificity. Based on this retrospective study, we cannot advocate eliminating pelvic radiographs in the severely injured, blunt trauma patient. Prospective studies are recommended.

ABCs of scoring systems for pediatric trauma.

This review presents an overview of scoring systems used in pediatric and adult trauma. Triage scoring systems, using readily available physical examination, physiologic, and/or mechanism of injury parameters, are used to determine appropriate prehospital referral patterns. The Trauma Score, Revised Trauma Score, Circulation/Respiration/Abdomen/Motor/Speech Scale, Prehospital Index, and Trauma Triage Rule were reviewed. Injury scoring systems based upon anatomic descriptions of all identified injuries, are retrospectively used to analyze trauma populations. The Abbreviated Injury Scale, Injury Severity Score, Modified Injury Severity Score, Organ Injury Scaling, and Anatomic Profile were discussed. The two trauma outcome analysis systems presented, TRISS and ASCOT, allow for reproducible quantification of trauma severity, and survival comparison between trauma populations. Many of these triage, injury severity, and outcome analysis systems were developed with patient survival as the major outcome variable. Although subsequent studies may have found them to have some predictive value for measures of trauma morbidity, these scoring systems do not specifically address long-term risk of impairment, and therefore overlook one of the most crucial elements of pediatric trauma care. The last 2 decades have seen considerable development of scoring systems and analysis methods applicable to the trauma patient. As presented, this trend includes both the elaboration of increasingly simple, field-oriented triage tools, and more complex mathematical techniques for trauma outcome analysis. Although not all systems were designed specifically with the pediatric patient in mind, validation or modification of these systems for the pediatric patient will likely occur in the future. It is anticipated that this field will continue to evolve with greater mathematical sophistication; a baseline familiarity of the early stages of this evolution may be of benefit to those caring for the pediatric trauma patient.

Too many pediatric trampoline injuries.

BACKGROUND: Recent reports note a dramatic increase in the number of pediatric trampoline injuries (PTI) during the past several years. In 1996, the US Consumer Product Safety Commission estimates that 83 000 patients received treatment for trampoline injuries in US hospital emergency departments (EDs), and that approximately 75% of these patients were <15 years of age. We sought to review our experience with PTI since our previous report (Pediatrics 1992;89:849), and to determine if the American Academy of Pediatrics' current (Pediatrics 1981;67:438) safety recommendations are adequate. METHODS: Retrospective medical record review of all PTI patients presenting to the pediatric ED from November 1990 through November 1997. RESULTS: A total of 727 PTI patients were included; medical records were unavailable for 3 patients. The annual number of PTI nearly tripled during the study period, from 51 in 1991 to a peak of 148 in 1996. PTI patients were 53% female, with a median age of 7 years; 37% were <6 years of age. Privately owned trampolines accounted for 99% of PTI. Most injuries (66%) occurred on the trampoline, 28% resulted from falls off, and 4% from imaginative mechanisms. One hundred eleven patients (15%) suffered severe injury (1990 Abbreviated Injury Scale value >/=3), usually of an extremity (89 out of 111). Fractures occurred in 324 patients (45%). Spinal injuries were common (12%), including 7 patients with cervical or thoracic fractures, and 1 with C7 paraplegia. Fractures were more frequently associated with falls off the trampoline, whereas spinal injuries more frequently occurred on the trampoline. Eighty patients (11%) required prehospital medical transport to our ED, 584 (80%) had ED radiographs, and 382 (53%) required pediatric surgical subspecialty involvement. Seventeen percent of PTI patients (125 out of 727) were admitted to the hospital, including 9 to the pediatric intensive care unit; 99 (14%) required one or more operations. Mean hospital stay was 2 days (range, 1-63 days); 24 stays (19%) were for >/=3 days. We estimate that the hospital charges for the acute medical care of PTI study patients at our institution totaled approximately $700 000. CONCLUSIONS: PTI are dramatically increasing in number, and result in considerable childhood morbidity. Most PTI occur on privately owned trampolines. Few, if any, safety recommendations for the trampoline are followed. We support recommendations for a ban on the recreational, school, and competitive pediatric use of trampolines.

Effect of a pediatric trauma response team on emergency department treatment time and mortality of pediatric trauma victims.

OBJECTIVE: Delay in the provision of definitive care for critically injured children may adversely effect outcome. We sought to speed care in the emergency department (ED) for trauma victims by organizing a formal trauma response system. DESIGN: A case-control study of severely injured children, comparing those who received treatment before and after the creation of a formal trauma response team. SETTING: A tertiary pediatric referral hospital that is a locally designated pediatric trauma center, and also receives trauma victims from a geographically large area of the Western United States. SUBJECTS: Pediatric trauma victims identified as critically injured (designated as "trauma one") and treated by a hospital trauma response team during the first year of its existence. Control patients were matched with subjects by probability of survival scores, and were chosen from pediatric trauma victims treated at the same hospital during the year preceding the creation of the trauma team. INTERVENTIONS: A trauma response team was organized to respond to pediatric trauma victims seen in the ED. The decision to activate the trauma team (designation of patient as "trauma one") is made by the pediatric emergency medicine (PEM) physician before patient arrival in the ED, based on data received from prehospital care providers. Activation results in the notification and immediate travel to the ED of a pediatric surgeon, neurosurgeon, emergency physician, intensivist, pharmacist, radiology technician, phlebotomist, and intensive care unit nurse, and mobilization of an operating room team. Most trauma one patients arrived by helicopter directly from accident scenes. OUTCOME MEASURES: Data recorded included identifying information, diagnosis, time to head computerized tomography, time required for ED treatment, admission Revised Trauma Score, discharge Injury Severity Score, surgical procedures performed, and mortality outcome. Trauma Injury Severity Score methodology was used to calculate the probability of survival and mortality compared with the reference patients of the Major Trauma Outcome Study, by calculation of z score. RESULTS: Patients treated in the ED after trauma team initiation had statistically shorter times from arrival to computerized tomography scanning (27 +/- 2 vs 21 +/- 4 minutes), operating room (63 +/- 16 vs 623 +/- 27 minutes) and total time in the ED (85 +/- 8 vs 821 +/- 9 minutes). Calculation of z score showed that survival for the control group was not different from the reference population (z = -0.8068), although survival for trauma-one patients was significantly better than the reference population (z = 2.102). CONCLUSION: Before creation of the trauma team, relevant specialists were individually called to the ED for patient evaluation. When a formal trauma response team was organized, time required for ED treatment of severe trauma was decreased, and survival was better than predicted compared with the reference Major Trauma Outcome Study population.

Delayed diagnosis of injury in pediatric trauma.

OBJECTIVE: To define the frequency and nature of delayed diagnosis of injury (DDI) in pediatric trauma. DESIGN: Retrospective review. SETTING: Tertiary pediatric trauma center. METHODS: Medical records of 1175 pediatric trauma admissions from July 1, 1989, through June 30, 1992, were reviewed. RESULTS: Fifty (4.3%) patients had 53 DDI. Fractures accounted for 38 DDI, most commonly of the extremities (total, 16). The delay until injury diagnosis ranged from 1 to 55 (median, 3) days. Patients with DDI had lower scores on the Glasgow Coma Scale, higher injury severity scores, and longer pediatric intensive care unit and hospital stays than patients without DDI. Patients with DDI more frequently required medical transport, emergent intubation, admission to the pediatric intensive care unit, and surgery. The DDI altered treatment for 68% of patients; 10 required surgery, including second operations for 6 children. CONCLUSIONS: DDI represents a failure of pediatric trauma care at all levels. The severely injured child is at the greatest risk of DDI. All pediatric patients with trauma warrant ongoing evaluation to identify initially unrecognized injuries.